iosm.c
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#include "system.h"
#include <rpmio_internal.h> /* XXX urlPath, fdGetCpioPos */
#include <rpmcb.h> /* XXX fnpyKey */
#include <ugid.h> /* XXX unameToUid() and gnameToGid() */
#include <rpmsq.h> /* XXX rpmsqJoin()/rpmsqThread() */
#include <rpmsw.h> /* XXX rpmswAdd() */
#include "../rpmdb/rpmtag.h"
typedef /*@abstract@*/ /*@refcounted@*/ struct rpmts_s * rpmts;
typedef /*@abstract@*/ struct rpmte_s * rpmte;
#define _IOSM_INTERNAL
#include <iosm.h>
#define iosmUNSAFE iosmStage
#include "cpio.h"
#include "tar.h"
#include "ar.h"
typedef iosmMapFlags cpioMapFlags;
#define _RPMFI_INTERNAL
#define _RPMFI_NOMETHODS
#include "../lib/rpmfi.h"
typedef /*@abstract@*/ /*@refcounted@*/ struct rpmds_s * rpmds;
typedef struct rpmRelocation_s * rpmRelocation;
#undef _USE_RPMTE
#if defined(_USE_RPMTE)
typedef /*@abstract@*/ void * alKey;
#include "rpmte.h"
#endif
#undef _USE_RPMSX
#if defined(_USE_RPMSX)
#include "../lib/rpmsx.h" /* XXX rpmsx rpmsxFContext rpmsxFree */
#endif
typedef /*@abstract@*/ /*@refcounted@*/ struct rpmdb_s * rpmdb;
typedef /*@abstract@*/ struct rpmmi_s * rpmmi;
typedef struct rpmPRCO_s * rpmPRCO;
typedef struct Spec_s * Spec;
#undef _USE_RPMTS
#if defined(_USE_RPMTS)
#include "rpmts.h"
#endif
#include "debug.h"
/*@access FD_t @*/ /* XXX void ptr args */
/*@access IOSMI_t @*/
/*@access IOSM_t @*/
/*@access rpmfi @*/
#define alloca_strdup(_s) strcpy(alloca(strlen(_s)+1), (_s))
#define _IOSM_DEBUG 0
/*@unchecked@*/
int _iosm_debug = _IOSM_DEBUG;
/*@-exportheadervar@*/
/*@unchecked@*/
int _iosm_threads = 0;
/*@=exportheadervar@*/
/*@-redecl@*/
int (*_iosmNext) (IOSM_t iosm, iosmFileStage nstage)
/*@modifies iosm @*/ = &iosmNext;
/*@=redecl@*/
#if defined(_USE_RPMTS)
void * iosmGetTs(const IOSM_t iosm)
{
const IOSMI_t iter = iosm->iter;
/*@-compdef -refcounttrans -retexpose -usereleased @*/
return (iter ? iter->ts : NULL);
/*@=compdef =refcounttrans =retexpose =usereleased @*/
}
#endif
void * iosmGetFi(const IOSM_t iosm)
{
const IOSMI_t iter = iosm->iter;
/*@-compdef -refcounttrans -retexpose -usereleased @*/
return (iter ? iter->fi : NULL);
/*@=compdef =refcounttrans =retexpose =usereleased @*/
}
#define SUFFIX_RPMORIG ".rpmorig"
#define SUFFIX_RPMSAVE ".rpmsave"
#define SUFFIX_RPMNEW ".rpmnew"
static /*@only@*//*@null@*/
const char * iosmFsPath(/*@special@*/ /*@null@*/ const IOSM_t iosm,
/*@null@*/ const struct stat * st,
/*@null@*/ const char * subdir,
/*@null@*/ const char * suffix)
/*@uses iosm->dirName, iosm->baseName */
/*@*/
{
const char * s = NULL;
if (iosm) {
char * t;
int nb;
nb = strlen(iosm->dirName) +
(st && !S_ISDIR(st->st_mode) ? (subdir ? strlen(subdir) : 0) : 0) +
(st && !S_ISDIR(st->st_mode) ? (suffix ? strlen(suffix) : 0) : 0) +
strlen(iosm->baseName) + 1;
s = t = xmalloc(nb);
t = stpcpy(t, iosm->dirName);
if (st && !S_ISDIR(st->st_mode))
if (subdir) t = stpcpy(t, subdir);
t = stpcpy(t, iosm->baseName);
if (st && !S_ISDIR(st->st_mode))
if (suffix) t = stpcpy(t, suffix);
}
return s;
}
static /*@null@*/ void * mapFreeIterator(/*@only@*//*@null@*/ void * p)
/*@modifies p @*/
{
IOSMI_t iter = p;
if (iter) {
#if !defined(_RPMFI_NOMETHODS)
iter->fi = rpmfiUnlink(iter->fi, "mapIterator");
#endif
iter->fi = NULL;
}
return _free(p);
}
/*@-mustmod@*/
static void *
mapInitIterator(rpmfi fi, int reverse)
/*@modifies fi @*/
{
IOSMI_t iter = NULL;
iter = xcalloc(1, sizeof(*iter));
#if !defined(_RPMFI_NOMETHODS)
iter->fi = rpmfiLink(fi, "mapIterator");
#else
/*@i@*/ iter->fi = fi;
#endif
iter->reverse = reverse;
iter->i = (iter->reverse ? (fi->fc - 1) : 0);
iter->isave = iter->i;
return iter;
}
/*@=mustmod@*/
static int mapNextIterator(/*@null@*/ void * a)
/*@*/
{
IOSMI_t iter = a;
int i = -1;
if (iter) {
if (iter->reverse) {
if (iter->i >= 0) i = iter->i--;
} else {
if (iter->i < (int) ((rpmfi)iter->fi)->fc) i = iter->i++;
}
iter->isave = i;
}
return i;
}
static int iosmStrCmp(const void * a, const void * b)
/*@*/
{
const char * aurl = *(const char **)a;
const char * burl = *(const char **)b;
const char * afn = NULL;
const char * bfn = NULL;
(void) urlPath(aurl, &afn);
(void) urlPath(burl, &bfn);
#ifdef VERY_OLD_BUGGY_RPM_PACKAGES
/* XXX Some rpm-2.4 packages from 1997 have basename only in payloads. */
if (strchr(afn, '/') == NULL)
bfn = strrchr(bfn, '/') + 1;
#endif
/* Match rpm-4.0 payloads with ./ prefixes. */
if (afn[0] == '.' && afn[1] == '/') afn += 2;
if (bfn[0] == '.' && bfn[1] == '/') bfn += 2;
/* If either path is absolute, make it relative to '/'. */
if (afn[0] == '/') afn += 1;
if (bfn[0] == '/') bfn += 1;
return strcmp(afn, bfn);
}
static int mapFind(/*@null@*/ IOSMI_t iter, const char * iosmPath)
/*@modifies iter @*/
{
int ix = -1;
if (iter) {
/*@-onlytrans@*/
const rpmfi fi = iter->fi;
/*@=onlytrans@*/
#if !defined(_RPMFI_NOMETHODS)
size_t fc = rpmfiFC(fi);
#else
size_t fc = (fi ? fi->fc : 0);
#endif
if (fi && fc > 0 && fi->apath && iosmPath && *iosmPath) {
const char ** p = NULL;
if (fi->apath != NULL)
p = bsearch(&iosmPath, fi->apath, fc, sizeof(iosmPath),
iosmStrCmp);
if (p) {
iter->i = p - fi->apath;
ix = mapNextIterator(iter);
}
}
}
return ix;
}
typedef struct dnli_s {
rpmfi fi;
/*@only@*/ /*@null@*/
char * active;
int reverse;
int isave;
int i;
} * DNLI_t;
static /*@null@*/ void * dnlFreeIterator(/*@only@*//*@null@*/ const void * a)
/*@modifies a @*/
{
if (a) {
DNLI_t dnli = (void *)a;
if (dnli->active) free(dnli->active);
}
return _free(a);
}
static inline int dnlCount(/*@null@*/ const DNLI_t dnli)
/*@*/
{
return (int) (dnli ? dnli->fi->dc : 0);
}
static inline int dnlIndex(/*@null@*/ const DNLI_t dnli)
/*@*/
{
return (dnli ? dnli->isave : -1);
}
/*@-usereleased@*/
static /*@only@*/ /*@null@*/
void * dnlInitIterator(/*@special@*/ const IOSM_t iosm,
int reverse)
/*@uses iosm->iter @*/
/*@*/
{
rpmfi fi = iosmGetFi(iosm);
const char * dnl;
DNLI_t dnli;
int i, j;
if (fi == NULL)
return NULL;
dnli = xcalloc(1, sizeof(*dnli));
dnli->fi = fi;
dnli->reverse = reverse;
dnli->i = (int) (reverse ? fi->dc : 0);
if (fi->dc) {
dnli->active = xcalloc(fi->dc, sizeof(*dnli->active));
/* Identify parent directories not skipped. */
#if !defined(_RPMFI_NOMETHODS)
if ((fi = rpmfiInit(fi, 0)) != NULL)
while ((i = rpmfiNext(fi)) >= 0)
#else
for (i = 0; i < (int)fi->fc; i++)
#endif
{
if (!iosmFileActionSkipped(fi->actions[i]))
dnli->active[fi->dil[i]] = (char)1;
}
/* Exclude parent directories that are explicitly included. */
#if !defined(_RPMFI_NOMETHODS)
if ((fi = rpmfiInit(fi, 0)) != NULL)
while ((i = rpmfiNext(fi)) >= 0)
#else
for (i = 0; i < (int)fi->fc; i++)
#endif
{
rpmuint32_t dil;
size_t dnlen, bnlen;
if (!S_ISDIR(fi->fmodes[i]))
continue;
dil = fi->dil[i];
dnlen = strlen(fi->dnl[dil]);
bnlen = strlen(fi->bnl[i]);
for (j = 0; j < (int)fi->dc; j++) {
size_t jlen;
if (!dnli->active[j] || j == (int)dil)
/*@innercontinue@*/ continue;
(void) urlPath(fi->dnl[j], &dnl);
jlen = strlen(dnl);
if (jlen != (dnlen+bnlen+1))
/*@innercontinue@*/ continue;
if (strncmp(dnl, fi->dnl[dil], dnlen))
/*@innercontinue@*/ continue;
if (strncmp(dnl+dnlen, fi->bnl[i], bnlen))
/*@innercontinue@*/ continue;
if (dnl[dnlen+bnlen] != '/' || dnl[dnlen+bnlen+1] != '\0')
/*@innercontinue@*/ continue;
/* This directory is included in the package. */
dnli->active[j] = (char)0;
/*@innerbreak@*/ break;
}
}
/* Print only once per package. */
if (!reverse) {
j = 0;
for (i = 0; i < (int)fi->dc; i++) {
if (!dnli->active[i]) continue;
if (j == 0) {
j = 1;
rpmlog(RPMLOG_DEBUG,
D_("========== Directories not explicitly included in package:\n"));
}
(void) urlPath(fi->dnl[i], &dnl);
rpmlog(RPMLOG_DEBUG, "%10d %s\n", i, dnl);
}
if (j)
rpmlog(RPMLOG_DEBUG, "==========\n");
}
}
return dnli;
}
/*@=usereleased@*/
static /*@observer@*/ /*@null@*/
const char * dnlNextIterator(/*@null@*/ DNLI_t dnli)
/*@modifies dnli @*/
{
const char * dn = NULL;
if (dnli) {
rpmfi fi = dnli->fi;
int i = -1;
if (dnli->active)
do {
i = (!dnli->reverse ? dnli->i++ : --dnli->i);
} while (i >= 0 && i < (int)fi->dc && !dnli->active[i]);
if (i >= 0 && i < (int)fi->dc)
dn = fi->dnl[i];
else
i = -1;
dnli->isave = i;
}
return dn;
}
#if defined(WITH_PTHREADS)
static void * iosmThread(void * arg)
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies arg, fileSystem, internalState @*/
{
IOSM_t iosm = arg;
/*@-unqualifiedtrans@*/
return ((void *) ((long)iosmStage(iosm, iosm->nstage)));
/*@=unqualifiedtrans@*/
}
#endif
int iosmNext(IOSM_t iosm, iosmFileStage nstage)
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
iosm->nstage = nstage;
#if defined(WITH_PTHREADS)
if (iosm->multithreaded)
return rpmsqJoin( rpmsqThread(iosmThread, iosm) );
#endif
return iosmStage(iosm, iosm->nstage);
}
static int saveHardLink(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->links, iosm->ix, iosm->sb, iosm->goal, iosm->nsuffix @*/
/*@defines iosm->li @*/
/*@releases iosm->path @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
struct stat * st = &iosm->sb;
int rc = 0;
int ix = -1;
int j;
/* Find hard link set. */
for (iosm->li = iosm->links; iosm->li; iosm->li = iosm->li->next) {
if (iosm->li->sb.st_ino == st->st_ino && iosm->li->sb.st_dev == st->st_dev)
break;
}
/* New hard link encountered, add new link to set. */
if (iosm->li == NULL) {
iosm->li = xcalloc(1, sizeof(*iosm->li));
iosm->li->next = NULL;
iosm->li->sb = *st; /* structure assignment */
iosm->li->nlink = (int) st->st_nlink;
iosm->li->linkIndex = iosm->ix;
iosm->li->createdPath = -1;
iosm->li->filex = xcalloc(st->st_nlink, sizeof(iosm->li->filex[0]));
memset(iosm->li->filex, -1, (st->st_nlink * sizeof(iosm->li->filex[0])));
iosm->li->nsuffix = xcalloc(st->st_nlink, sizeof(*iosm->li->nsuffix));
if (iosm->goal == IOSM_PKGBUILD)
iosm->li->linksLeft = (int) st->st_nlink;
if (iosm->goal == IOSM_PKGINSTALL)
iosm->li->linksLeft = 0;
/*@-kepttrans@*/
iosm->li->next = iosm->links;
/*@=kepttrans@*/
iosm->links = iosm->li;
}
if (iosm->goal == IOSM_PKGBUILD) --iosm->li->linksLeft;
iosm->li->filex[iosm->li->linksLeft] = iosm->ix;
/*@-observertrans -dependenttrans@*/
iosm->li->nsuffix[iosm->li->linksLeft] = iosm->nsuffix;
/*@=observertrans =dependenttrans@*/
if (iosm->goal == IOSM_PKGINSTALL) iosm->li->linksLeft++;
if (iosm->goal == IOSM_PKGBUILD)
return (iosm->li->linksLeft > 0);
if (iosm->goal != IOSM_PKGINSTALL)
return 0;
if (!(st->st_size || iosm->li->linksLeft == (int) st->st_nlink))
return 1;
/* Here come the bits, time to choose a non-skipped file name. */
{ rpmfi fi = iosmGetFi(iosm);
for (j = iosm->li->linksLeft - 1; j >= 0; j--) {
ix = iosm->li->filex[j];
if (ix < 0 || iosmFileActionSkipped(fi->actions[ix]))
continue;
break;
}
}
/* Are all links skipped or not encountered yet? */
if (ix < 0 || j < 0)
return 1; /* XXX W2DO? */
/* Save the non-skipped file name and map index. */
iosm->li->linkIndex = j;
iosm->path = _free(iosm->path);
iosm->ix = ix;
rc = iosmNext(iosm, IOSM_MAP);
return rc;
}
static /*@null@*/ void * freeHardLink(/*@only@*/ /*@null@*/ struct hardLink_s * li)
/*@modifies li @*/
{
if (li) {
li->nsuffix = _free(li->nsuffix); /* XXX elements are shared */
li->filex = _free(li->filex);
}
return _free(li);
}
IOSM_t newIOSM(void)
{
IOSM_t iosm = xcalloc(1, sizeof(*iosm));
return iosm;
}
IOSM_t freeIOSM(IOSM_t iosm)
{
if (iosm) {
iosm->path = _free(iosm->path);
while ((iosm->li = iosm->links) != NULL) {
iosm->links = iosm->li->next;
iosm->li->next = NULL;
iosm->li = freeHardLink(iosm->li);
}
iosm->dnlx = _free(iosm->dnlx);
iosm->ldn = _free(iosm->ldn);
iosm->iter = mapFreeIterator(iosm->iter);
}
return _free(iosm);
}
static int arSetup(IOSM_t iosm, rpmfi fi)
/*@modifies iosm @*/
{
const char * path;
char * t;
size_t lmtablen = 0;
size_t nb;
/* Calculate size of ar(1) long member table. */
#if !defined(_RPMFI_NOMETHODS)
if ((fi = rpmfiInit(fi, 0)) != NULL)
while (rpmfiNext(fi) >= 0)
#else
int i;
if (fi != NULL)
for (i = 0; i < (int)fi->fc; i++)
#endif
{
#ifdef NOTYET
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[ix], &apath);
path = apath + fi->striplen;
} else
#endif
#if !defined(_RPMFI_NOMETHODS)
path = rpmfiBN(fi);
#else
path = fi->bnl[i];
#endif
if ((nb = strlen(path)) < 15)
continue;
lmtablen += nb + 1; /* trailing \n */
}
/* Anything to do? */
if (lmtablen == 0)
return 0;
/* Create and load ar(1) long member table. */
iosm->lmtab = t = xmalloc(lmtablen + 1); /* trailing \0 */
iosm->lmtablen = lmtablen;
iosm->lmtaboff = 0;
#if !defined(_RPMFI_NOMETHODS)
if ((fi = rpmfiInit(fi, 0)) != NULL)
while (rpmfiNext(fi) >= 0)
#else
if (fi != NULL)
for (i = 0; i < (int)fi->fc; i++)
#endif
{
#ifdef NOTYET
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[ix], &apath);
path = apath + fi->striplen;
} else
#endif
#if !defined(_RPMFI_NOMETHODS)
path = rpmfiBN(fi);
#else
path = fi->bnl[i];
#endif
if ((nb = strlen(path)) < 15)
continue;
t = stpcpy(t, path);
*t++ = '\n';
}
*t = '\0';
return 0;
}
int iosmSetup(IOSM_t iosm, iosmFileStage goal, const char * afmt,
const void * _ts, const void * _fi, FD_t cfd,
unsigned int * archiveSize, const char ** failedFile)
{
#if defined(_USE_RPMTS)
const rpmts ts = (const rpmts) _ts;
#endif
/*@i@*/ const rpmfi fi = (const rpmfi) _fi;
#if defined(_USE_RPMTE)
int reverse = (rpmteType(fi->te) == TR_REMOVED && fi->action != FA_COPYOUT);
int adding = (rpmteType(fi->te) == TR_ADDED);
#else
int reverse = 0; /* XXX HACK: devise alternative means */
int adding = 1; /* XXX HACK: devise alternative means */
#endif
size_t pos = 0;
int rc, ec = 0;
iosm->debug = _iosm_debug;
iosm->multithreaded = _iosm_threads;
iosm->adding = adding;
/*@+voidabstract -nullpass@*/
if (iosm->debug < 0)
fprintf(stderr, "--> iosmSetup(%p, 0x%x, \"%s\", %p, %p, %p, %p, %p)\n", iosm, goal, afmt, (void *)_ts, _fi, cfd, archiveSize, failedFile);
/*@=voidabstract =nullpass@*/
_iosmNext = &iosmNext;
if (iosm->headerRead == NULL) {
if (afmt != NULL && (!strcmp(afmt, "tar") || !strcmp(afmt, "ustar"))) {
if (iosm->debug < 0)
fprintf(stderr, "\ttar vectors set\n");
iosm->headerRead = &tarHeaderRead;
iosm->headerWrite = &tarHeaderWrite;
iosm->trailerWrite = &tarTrailerWrite;
iosm->blksize = TAR_BLOCK_SIZE;
} else
if (afmt != NULL && !strcmp(afmt, "ar")) {
if (iosm->debug < 0)
fprintf(stderr, "\tar vectors set\n");
iosm->headerRead = &arHeaderRead;
iosm->headerWrite = &arHeaderWrite;
iosm->trailerWrite = &arTrailerWrite;
iosm->blksize = 2;
if (goal == IOSM_PKGBUILD || goal == IOSM_PKGERASE)
(void) arSetup(iosm, fi);
} else
{
if (iosm->debug < 0)
fprintf(stderr, "\tcpio vectors set\n");
iosm->headerRead = &cpioHeaderRead;
iosm->headerWrite = &cpioHeaderWrite;
iosm->trailerWrite = &cpioTrailerWrite;
iosm->blksize = 4;
}
}
iosm->goal = goal;
if (cfd != NULL) {
/*@-assignexpose@*/
iosm->cfd = fdLink(cfd, "persist (iosm)");
/*@=assignexpose@*/
pos = fdGetCpioPos(iosm->cfd);
fdSetCpioPos(iosm->cfd, 0);
}
/*@-mods@*/ /* WTF? */
iosm->iter = mapInitIterator(fi, reverse);
/*@=mods@*/
#if defined(_USE_RPMTS)
iosm->iter->ts = rpmtsLink(ts, "mapIterator");
iosm->nofcontexts = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOCONTEXTS);
iosm->nofdigests =
(ts != NULL && !(rpmtsFlags(ts) & RPMTRANS_FLAG_NOFDIGESTS))
? 0 : 1;
#define _tsmask (RPMTRANS_FLAG_PKGCOMMIT | RPMTRANS_FLAG_COMMIT)
iosm->commit = ((ts && (rpmtsFlags(ts) & _tsmask) &&
iosm->goal != IOSM_PKGCOMMIT) ? 0 : 1);
#undef _tsmask
#else
/*@-assignexpose -temptrans @*/
iosm->iter->ts = (void *)_ts;
/*@=assignexpose =temptrans @*/
iosm->nofcontexts = 1;
iosm->nofdigests = 1;
iosm->commit = 1;
#endif
if (iosm->goal == IOSM_PKGINSTALL || iosm->goal == IOSM_PKGBUILD) {
fi->archivePos = 0;
#if defined(_USE_RPMTS)
(void) rpmtsNotify(ts, fi->te,
RPMCALLBACK_INST_START, fi->archivePos, fi->archiveSize);
#endif
}
/*@-assignexpose@*/
iosm->archiveSize = archiveSize;
if (iosm->archiveSize)
*iosm->archiveSize = 0;
iosm->failedFile = failedFile;
if (iosm->failedFile)
*iosm->failedFile = NULL;
/*@=assignexpose@*/
memset(iosm->sufbuf, 0, sizeof(iosm->sufbuf));
if (iosm->goal == IOSM_PKGINSTALL) {
rpmuint32_t tid;
#if defined(_USE_RPMTS)
tid = (ts != NULL ? rpmtsGetTid(ts) : 0);
#else
static time_t now = 0;
if (now == 0) now = time(NULL);
tid = (rpmuint32_t) now;
#endif
if (tid > 0 && tid < 0xffffffff)
sprintf(iosm->sufbuf, ";%08x", (unsigned)tid);
}
ec = iosm->rc = 0;
rc = iosmUNSAFE(iosm, IOSM_CREATE);
if (rc && !ec) ec = rc;
rc = iosmUNSAFE(iosm, iosm->goal);
if (rc && !ec) ec = rc;
if (iosm->archiveSize && ec == 0)
*iosm->archiveSize = (fdGetCpioPos(iosm->cfd) - pos);
/*@-nullstate@*/ /* FIX: *iosm->failedFile may be NULL */
return ec;
/*@=nullstate@*/
}
int iosmTeardown(IOSM_t iosm)
{
int rc = iosm->rc;
if (iosm->debug < 0)
fprintf(stderr, "--> iosmTeardown(%p)\n", iosm);
if (!rc)
rc = iosmUNSAFE(iosm, IOSM_DESTROY);
iosm->lmtab = _free(iosm->lmtab);
#if defined(_USE_RPMTS)
(void) rpmswAdd(rpmtsOp(iosmGetTs(iosm), RPMTS_OP_DIGEST),
&iosm->op_digest);
(void)rpmtsFree(iter->ts);
iter->ts = NULL;
#else
iosm->iter->ts = NULL;
#endif
iosm->iter = mapFreeIterator(iosm->iter);
if (iosm->cfd != NULL) {
iosm->cfd = fdFree(iosm->cfd, "persist (iosm)");
iosm->cfd = NULL;
}
iosm->failedFile = NULL;
return rc;
}
/*
* Set file security context (if not disabled).
* @param iosm file state machine data
* @return 0 always
*/
static int iosmMapFContext(IOSM_t iosm)
/*@modifies iosm @*/
{
/*
* Find file security context (if not disabled).
*/
iosm->fcontext = NULL;
if (!iosm->nofcontexts) {
security_context_t scon = NULL;
int xx = matchpathcon(iosm->path, iosm->sb.st_mode, &scon);
/*@-moduncon@*/
if (!xx && scon != NULL)
iosm->fcontext = scon;
#ifdef DYING /* XXX SELinux file contexts not set from package content. */
else {
rpmfi fi = iosmGetFi(iosm);
int i = iosm->ix;
/* Get file security context from package. */
if (fi && i >= 0 && i < (int)fi->fc)
iosm->fcontext = (fi->fcontexts ? fi->fcontexts[i] : NULL);
}
#endif
/*@=moduncon@*/
}
return 0;
}
int iosmMapPath(IOSM_t iosm)
{
rpmfi fi = iosmGetFi(iosm); /* XXX const except for fstates */
int teAdding = iosm->adding;
int rc = 0;
int i = iosm->ix;
iosm->osuffix = NULL;
iosm->nsuffix = NULL;
iosm->astriplen = 0;
iosm->action = FA_UNKNOWN;
iosm->mapFlags = fi->mapflags;
if (fi && i >= 0 && i < (int)fi->fc) {
iosm->astriplen = fi->astriplen;
iosm->action = (fi->actions ? fi->actions[i] : fi->action);
iosm->fflags = (fi->fflags ? fi->fflags[i] : fi->flags);
iosm->mapFlags = (fi->fmapflags ? fi->fmapflags[i] : fi->mapflags);
/* src rpms have simple base name in payload. */
iosm->dirName = fi->dnl[fi->dil[i]];
iosm->baseName = fi->bnl[i];
switch (iosm->action) {
case FA_SKIP:
break;
case FA_UNKNOWN:
break;
case FA_COPYOUT:
break;
case FA_COPYIN:
case FA_CREATE:
assert(teAdding);
break;
case FA_SKIPNSTATE:
if (fi->fstates && teAdding)
fi->fstates[i] = (rpmuint8_t)RPMFILE_STATE_NOTINSTALLED;
break;
case FA_SKIPNETSHARED:
if (fi->fstates && teAdding)
fi->fstates[i] = (rpmuint8_t)RPMFILE_STATE_NETSHARED;
break;
case FA_SKIPCOLOR:
if (fi->fstates && teAdding)
fi->fstates[i] = (rpmuint8_t)RPMFILE_STATE_WRONGCOLOR;
break;
case FA_BACKUP:
if (!(iosm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
iosm->osuffix = (teAdding ? SUFFIX_RPMORIG : SUFFIX_RPMSAVE);
break;
case FA_ALTNAME:
assert(teAdding);
if (!(iosm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
iosm->nsuffix = SUFFIX_RPMNEW;
break;
case FA_SAVE:
assert(teAdding);
if (!(iosm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
iosm->osuffix = SUFFIX_RPMSAVE;
break;
case FA_ERASE:
#if 0 /* XXX is this a genhdlist fix? */
assert(rpmteType(fi->te) == TR_REMOVED);
#endif
/*
* XXX TODO: %ghost probably shouldn't be removed, but that changes
* legacy rpm behavior.
*/
break;
default:
break;
}
if ((iosm->mapFlags & IOSM_MAP_PATH) || iosm->nsuffix) {
const struct stat * st = &iosm->sb;
iosm->path = _free(iosm->path);
iosm->path = iosmFsPath(iosm, st, iosm->subdir,
(iosm->suffix ? iosm->suffix : iosm->nsuffix));
}
}
return rc;
}
int iosmMapAttrs(IOSM_t iosm)
{
struct stat * st = &iosm->sb;
rpmfi fi = iosmGetFi(iosm);
int i = iosm->ix;
if (fi && i >= 0 && i < (int)fi->fc) {
mode_t perms = (S_ISDIR(st->st_mode) ? fi->dperms : fi->fperms);
mode_t finalMode = (fi->fmodes ? (mode_t)fi->fmodes[i] : perms);
dev_t finalRdev = (fi->frdevs ? fi->frdevs[i] : 0);
rpmuint32_t finalMtime = (fi->fmtimes ? fi->fmtimes[i] : 0);
uid_t uid = fi->uid;
gid_t gid = fi->gid;
#if defined(RPM_VENDOR_OPENPKG) || defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_ARK) /* no-owner-group-on-srpm-install */
/* Make sure OpenPKG/Mandriva RPM does not try to set file owner/group on files during
installation of _source_ RPMs. Instead, let it use the current
run-time owner/group, because most of the time the owner/group in
the source RPM (which is the owner/group of the files as staying on
the package author system) is not existing on the target system, of
course. */
#endif
if (fi->fuser && unameToUid(fi->fuser[i], &uid)) {
#if defined(RPM_VENDOR_OPENPKG) || defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_ARK) /* no-owner-group-on-srpm-install */
if (!fi->isSource) {
#endif
if (iosm->goal == IOSM_PKGINSTALL)
rpmlog(RPMLOG_WARNING,
_("user %s does not exist - using root\n"), fi->fuser[i]);
uid = 0;
finalMode &= ~S_ISUID; /* turn off suid bit */
#if defined(RPM_VENDOR_OPENPKG) || defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_ARK) /* no-owner-group-on-srpm-install */
}
#endif
}
if (fi->fgroup && gnameToGid(fi->fgroup[i], &gid)) {
#if defined(RPM_VENDOR_OPENPKG) || defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_ARK) /* no-owner-group-on-srpm-install */
if (!fi->isSource) {
#endif
if (iosm->goal == IOSM_PKGINSTALL)
rpmlog(RPMLOG_WARNING,
_("group %s does not exist - using root\n"), fi->fgroup[i]);
gid = 0;
finalMode &= ~S_ISGID; /* turn off sgid bit */
#if defined(RPM_VENDOR_OPENPKG) || defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_ARK) /* no-owner-group-on-srpm-install */
}
#endif
}
if (iosm->mapFlags & IOSM_MAP_MODE)
st->st_mode = (st->st_mode & S_IFMT) | (finalMode & ~S_IFMT);
if (iosm->mapFlags & IOSM_MAP_TYPE) {
st->st_mode = (st->st_mode & ~S_IFMT) | (finalMode & S_IFMT);
if ((S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
&& st->st_nlink == 0)
st->st_nlink = 1;
st->st_rdev = finalRdev;
st->st_mtime = finalMtime;
}
if (iosm->mapFlags & IOSM_MAP_UID)
st->st_uid = uid;
if (iosm->mapFlags & IOSM_MAP_GID)
st->st_gid = gid;
/*
* Set file digest (if not disabled).
*/
if (!iosm->nofdigests) {
iosm->fdigestalgo = fi->digestalgo;
iosm->fdigest = (fi->fdigests ? fi->fdigests[i] : NULL);
iosm->digestlen = fi->digestlen;
iosm->digest = (fi->digests ? (fi->digests + (iosm->digestlen * i)) : NULL);
} else {
iosm->fdigestalgo = 0;
iosm->fdigest = NULL;
iosm->digestlen = 0;
iosm->digest = NULL;
}
}
return 0;
}
/*@-compdef@*/
static int extractRegular(/*@special@*/ IOSM_t iosm)
/*@uses iosm->fdigest, iosm->digest, iosm->sb, iosm->wfd @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const struct stat * st = &iosm->sb;
size_t left = (size_t) st->st_size;
int rc = 0;
int xx;
rc = iosmNext(iosm, IOSM_WOPEN);
if (rc)
goto exit;
if (st->st_size > 0 && (iosm->fdigest != NULL || iosm->digest != NULL))
fdInitDigest(iosm->wfd, iosm->fdigestalgo, 0);
while (left) {
iosm->wrlen = (left > iosm->wrsize ? iosm->wrsize : left);
rc = iosmNext(iosm, IOSM_DREAD);
if (rc)
goto exit;
rc = iosmNext(iosm, IOSM_WRITE);
if (rc)
goto exit;
left -= iosm->wrnb;
/* Notify iff progress, completion is done elsewhere */
if (!rc && left)
(void) iosmNext(iosm, IOSM_NOTIFY);
}
xx = fsync(Fileno(iosm->wfd));
if (st->st_size > 0 && (iosm->fdigest || iosm->digest)) {
void * digest = NULL;
int asAscii = (iosm->digest == NULL ? 1 : 0);
(void) Fflush(iosm->wfd);
fdFiniDigest(iosm->wfd, iosm->fdigestalgo, &digest, NULL, asAscii);
if (digest == NULL) {
rc = IOSMERR_DIGEST_MISMATCH;
goto exit;
}
if (iosm->digest != NULL) {
if (memcmp(digest, iosm->digest, iosm->digestlen))
rc = IOSMERR_DIGEST_MISMATCH;
} else {
if (strcmp(digest, iosm->fdigest))
rc = IOSMERR_DIGEST_MISMATCH;
}
digest = _free(digest);
}
exit:
(void) iosmNext(iosm, IOSM_WCLOSE);
return rc;
}
/*@=compdef@*/
/*@-compdef -compmempass@*/
static int writeFile(/*@special@*/ /*@partial@*/ IOSM_t iosm, int writeData)
/*@uses iosm->path, iosm->opath, iosm->sb, iosm->osb, iosm->cfd @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const char * path = iosm->path;
const char * opath = iosm->opath;
struct stat * st = &iosm->sb;
struct stat * ost = &iosm->osb;
size_t left;
int xx;
int rc;
st->st_size = (writeData ? ost->st_size : 0);
if (S_ISDIR(st->st_mode)) {
st->st_size = 0;
} else if (S_ISLNK(st->st_mode)) {
/*
* While linux puts the size of a symlink in the st_size field,
* I don't think that's a specified standard.
*/
/* XXX NUL terminated result in iosm->rdbuf, len in iosm->rdnb. */
rc = iosmUNSAFE(iosm, IOSM_READLINK);
if (rc) goto exit;
st->st_size = iosm->rdnb;
iosm->lpath = xstrdup(iosm->rdbuf); /* XXX save readlink return. */
}
if (iosm->mapFlags & IOSM_MAP_ABSOLUTE) {
size_t nb=strlen(iosm->dirName) + strlen(iosm->baseName) + sizeof(".");
char * t = alloca(nb);
*t = '\0';
iosm->path = t;
if (iosm->mapFlags & IOSM_MAP_ADDDOT)
*t++ = '.';
t = stpcpy( stpcpy(t, iosm->dirName), iosm->baseName);
} else if (iosm->mapFlags & IOSM_MAP_PATH) {
rpmfi fi = iosmGetFi(iosm);
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[iosm->ix], &apath);
iosm->path = apath + fi->striplen;
} else
iosm->path = fi->bnl[iosm->ix];
}
rc = iosmNext(iosm, IOSM_HWRITE);
iosm->path = path;
if (rc) goto exit;
if (writeData && S_ISREG(st->st_mode)) {
#if defined(HAVE_MMAP)
char * rdbuf = NULL;
void * mapped = (void *)-1;
size_t nmapped = 0;
/* XXX 128 Mb resource cap for top(1) scrutiny, MADV_DONTNEED better. */
int use_mmap = (st->st_size <= 0x07ffffff);
#endif
rc = iosmNext(iosm, IOSM_ROPEN);
if (rc) goto exit;
/* XXX unbuffered mmap generates *lots* of fdio debugging */
#if defined(HAVE_MMAP)
if (use_mmap) {
mapped = mmap(NULL, st->st_size, PROT_READ, MAP_SHARED, Fileno(iosm->rfd), 0);
if (mapped != (void *)-1) {
rdbuf = iosm->rdbuf;
iosm->rdbuf = (char *) mapped;
iosm->rdlen = nmapped = st->st_size;
#if defined(HAVE_MADVISE) && defined(MADV_DONTNEED)
xx = madvise(mapped, nmapped, MADV_DONTNEED);
#endif
}
}
#endif
left = st->st_size;
while (left) {
#if defined(HAVE_MMAP)
if (mapped != (void *)-1) {
iosm->rdnb = nmapped;
} else
#endif
{
iosm->rdlen = (left > iosm->rdsize ? iosm->rdsize : left),
rc = iosmNext(iosm, IOSM_READ);
if (rc) goto exit;
}
/* XXX DWRITE uses rdnb for I/O length. */
rc = iosmNext(iosm, IOSM_DWRITE);
if (rc) goto exit;
left -= iosm->wrnb;
}
#if defined(HAVE_MMAP)
if (mapped != (void *)-1) {
/* XXX splint misses size_t 2nd arg. */
/*@i@*/ xx = msync(mapped, nmapped, MS_ASYNC);
#if defined(HAVE_MADVISE) && defined(MADV_DONTNEED)
xx = madvise(mapped, nmapped, MADV_DONTNEED);
#endif
xx = munmap(mapped, nmapped);
iosm->rdbuf = rdbuf;
} else
#endif
xx = fsync(Fileno(iosm->rfd));
}
rc = iosmNext(iosm, IOSM_PAD);
if (rc) goto exit;
rc = 0;
exit:
if (iosm->rfd != NULL)
(void) iosmNext(iosm, IOSM_RCLOSE);
/*@-dependenttrans@*/
iosm->opath = opath;
iosm->path = path;
/*@=dependenttrans@*/
return rc;
}
/*@=compdef =compmempass@*/
static int writeLinkedFile(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->path, iosm->nsuffix, iosm->ix, iosm->li, iosm->failedFile @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const char * path = iosm->path;
const char * lpath = iosm->lpath;
const char * nsuffix = iosm->nsuffix;
int iterIndex = iosm->ix;
int ec = 0;
int rc;
int i;
const char * linkpath = NULL;
int firstfile = 1;
iosm->path = NULL;
iosm->lpath = NULL;
iosm->nsuffix = NULL;
iosm->ix = -1;
for (i = iosm->li->nlink - 1; i >= 0; i--) {
if (iosm->li->filex[i] < 0) continue;
iosm->ix = iosm->li->filex[i];
/*@-compdef@*/
rc = iosmNext(iosm, IOSM_MAP);
/*@=compdef@*/
/* XXX tar and cpio have to do things differently. */
if (iosm->headerWrite == tarHeaderWrite) {
if (firstfile) {
const char * apath = NULL;
char *t;
(void) urlPath(iosm->path, &apath);
/* Remove the buildroot prefix. */
t = xmalloc(sizeof(".") + strlen(apath + iosm->astriplen));
(void) stpcpy( stpcpy(t, "."), apath + iosm->astriplen);
linkpath = t;
firstfile = 0;
} else
iosm->lpath = linkpath;
/* Write data after first link for tar. */
rc = writeFile(iosm, (iosm->lpath == NULL));
} else {
/* Write data after last link for cpio. */
rc = writeFile(iosm, (i == 0));
}
if (iosm->failedFile && rc != 0 && *iosm->failedFile == NULL) {
ec = rc;
*iosm->failedFile = xstrdup(iosm->path);
}
iosm->path = _free(iosm->path);
iosm->li->filex[i] = -1;
}
/*@-dependenttrans@*/
linkpath = _free(linkpath);
/*@=dependenttrans@*/
iosm->ix = iterIndex;
iosm->nsuffix = nsuffix;
iosm->lpath = lpath;
iosm->path = path;
return ec;
}
/*@-compdef@*/
static int iosmMakeLinks(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->path, iosm->opath, iosm->nsuffix, iosm->ix, iosm->li @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const char * path = iosm->path;
const char * opath = iosm->opath;
const char * nsuffix = iosm->nsuffix;
int iterIndex = iosm->ix;
int ec = 0;
int rc;
int i;
iosm->path = NULL;
iosm->opath = NULL;
iosm->nsuffix = NULL;
iosm->ix = -1;
iosm->ix = iosm->li->filex[iosm->li->createdPath];
rc = iosmNext(iosm, IOSM_MAP);
iosm->opath = iosm->path;
iosm->path = NULL;
for (i = 0; i < iosm->li->nlink; i++) {
if (iosm->li->filex[i] < 0) continue;
if (iosm->li->createdPath == i) continue;
iosm->ix = iosm->li->filex[i];
iosm->path = _free(iosm->path);
rc = iosmNext(iosm, IOSM_MAP);
if (iosmFileActionSkipped(iosm->action)) continue;
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (!rc) continue;
if (!(rc == IOSMERR_ENOENT)) break;
/* XXX link(iosm->opath, iosm->path) */
rc = iosmNext(iosm, IOSM_LINK);
if (iosm->failedFile && rc != 0 && *iosm->failedFile == NULL) {
ec = rc;
*iosm->failedFile = xstrdup(iosm->path);
}
iosm->li->linksLeft--;
}
iosm->path = _free(iosm->path);
iosm->opath = _free(iosm->opath);
iosm->ix = iterIndex;
iosm->nsuffix = nsuffix;
iosm->path = path;
iosm->opath = opath;
return ec;
}
/*@=compdef@*/
/*@-compdef@*/
static int iosmCommitLinks(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->path, iosm->nsuffix, iosm->ix, iosm->sb,
iosm->li, iosm->links @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const char * path = iosm->path;
const char * nsuffix = iosm->nsuffix;
int iterIndex = iosm->ix;
struct stat * st = &iosm->sb;
int rc = 0;
int i;
iosm->path = NULL;
iosm->nsuffix = NULL;
iosm->ix = -1;
for (iosm->li = iosm->links; iosm->li; iosm->li = iosm->li->next) {
if (iosm->li->sb.st_ino == st->st_ino && iosm->li->sb.st_dev == st->st_dev)
break;
}
for (i = 0; i < iosm->li->nlink; i++) {
if (iosm->li->filex[i] < 0) continue;
iosm->ix = iosm->li->filex[i];
rc = iosmNext(iosm, IOSM_MAP);
if (!iosmFileActionSkipped(iosm->action))
rc = iosmNext(iosm, IOSM_COMMIT);
iosm->path = _free(iosm->path);
iosm->li->filex[i] = -1;
}
iosm->ix = iterIndex;
iosm->nsuffix = nsuffix;
iosm->path = path;
return rc;
}
/*@=compdef@*/
static int iosmRmdirs(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->path, iosm->dnlx, iosm->ldn, iosm->rdbuf, iosm->iter @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
const char * path = iosm->path;
void * dnli = dnlInitIterator(iosm, 1);
char * dn = iosm->rdbuf;
int dc = dnlCount(dnli);
int rc = 0;
iosm->path = NULL;
dn[0] = '\0';
/*@-observertrans -dependenttrans@*/
if (iosm->ldn != NULL && iosm->dnlx != NULL)
while ((iosm->path = dnlNextIterator(dnli)) != NULL) {
size_t dnlen = strlen(iosm->path);
char * te;
dc = dnlIndex(dnli);
if (iosm->dnlx[dc] < 1 || (size_t)iosm->dnlx[dc] >= dnlen)
continue;
/* Copy to avoid const on iosm->path. */
te = stpcpy(dn, iosm->path) - 1;
iosm->path = dn;
/* Remove generated directories. */
/*@-usereleased@*/ /* LCL: te used after release? */
do {
if (*te == '/') {
*te = '\0';
/*@-compdef@*/
rc = iosmNext(iosm, IOSM_RMDIR);
/*@=compdef@*/
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
te--;
} while ((te - iosm->path) > iosm->dnlx[dc]);
/*@=usereleased@*/
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
iosm->path = path;
return rc;
}
static int iosmMkdirs(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@uses iosm->path, iosm->sb, iosm->osb, iosm->rdbuf, iosm->iter,
iosm->ldn, iosm->ldnlen, iosm->ldnalloc @*/
/*@defines iosm->dnlx, iosm->ldn @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
struct stat * st = &iosm->sb;
struct stat * ost = &iosm->osb;
const char * path = iosm->path;
mode_t st_mode = st->st_mode;
void * dnli = dnlInitIterator(iosm, 0);
char * dn = iosm->rdbuf;
int dc = dnlCount(dnli);
int rc = 0;
size_t i;
iosm->path = NULL;
dn[0] = '\0';
iosm->dnlx = (dc ? xcalloc(dc, sizeof(*iosm->dnlx)) : NULL);
/*@-observertrans -dependenttrans@*/
if (iosm->dnlx != NULL)
while ((iosm->path = dnlNextIterator(dnli)) != NULL) {
size_t dnlen = strlen(iosm->path);
char * te;
dc = dnlIndex(dnli);
if (dc < 0) continue;
iosm->dnlx[dc] = (unsigned short) dnlen;
if (dnlen <= 1)
continue;
/*@-compdef -nullpass@*/ /* FIX: iosm->ldn not defined ??? */
if (dnlen <= iosm->ldnlen && !strcmp(iosm->path, iosm->ldn))
continue;
/*@=compdef =nullpass@*/
/* Copy to avoid const on iosm->path. */
(void) stpcpy(dn, iosm->path);
iosm->path = dn;
/* Assume '/' directory exists, "mkdir -p" for others if non-existent */
(void) urlPath(dn, (const char **)&te);
for (i = 1, te++; *te != '\0'; te++, i++) {
if (*te != '/')
/*@innercontinue@*/ continue;
*te = '\0';
/* Already validated? */
/*@-usedef -compdef -nullpass -nullderef@*/
if (i < iosm->ldnlen &&
(iosm->ldn[i] == '/' || iosm->ldn[i] == '\0') &&
!strncmp(iosm->path, iosm->ldn, i))
{
*te = '/';
/* Move pre-existing path marker forward. */
iosm->dnlx[dc] = (te - dn);
/*@innercontinue@*/ continue;
}
/*@=usedef =compdef =nullpass =nullderef@*/
/* Validate next component of path. */
rc = iosmUNSAFE(iosm, IOSM_LSTAT);
*te = '/';
/* Directory already exists? */
if (rc == 0 && S_ISDIR(ost->st_mode)) {
/* Move pre-existing path marker forward. */
iosm->dnlx[dc] = (te - dn);
} else if (rc == IOSMERR_ENOENT) {
rpmfi fi = iosmGetFi(iosm);
*te = '\0';
st->st_mode = S_IFDIR | (fi->dperms & 07777);
rc = iosmNext(iosm, IOSM_MKDIR);
if (!rc) {
#if defined(_USE_RPMSX)
security_context_t scon = NULL;
/* XXX FIXME? only new dir will have context set. */
/* Get file security context from patterns. */
if (!fsm->nofcontexts
&& !matchpathcon(iosm->path, st->st_mode, &scon)
&& scon != NULL)
{
iosm->fcontext = scon;
rc = iosmNext(iosm, IOSM_LSETFCON);
} else
#endif
iosm->fcontext = NULL;
if (iosm->fcontext == NULL)
rpmlog(RPMLOG_DEBUG,
D_("%s directory created with perms %04o, no context.\n"),
iosm->path, (unsigned)(st->st_mode & 07777));
else {
rpmlog(RPMLOG_DEBUG,
D_("%s directory created with perms %04o, context %s.\n"),
iosm->path, (unsigned)(st->st_mode & 07777),
iosm->fcontext);
#if defined(_USE_RPMSX)
iosm->fcontext = NULL;
scon = _free(scon);
#endif
}
}
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
}
if (rc) break;
/* Save last validated path. */
/*@-compdef@*/ /* FIX: ldn/path annotations ? */
if (iosm->ldnalloc < (dnlen + 1)) {
iosm->ldnalloc = dnlen + 100;
iosm->ldn = xrealloc(iosm->ldn, iosm->ldnalloc);
}
if (iosm->ldn != NULL) { /* XXX can't happen */
strcpy(iosm->ldn, iosm->path);
iosm->ldnlen = dnlen;
}
/*@=compdef@*/
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
iosm->path = path;
st->st_mode = st_mode; /* XXX restore st->st_mode */
/*@-compdef@*/ /* FIX: ldn/path annotations ? */
return rc;
/*@=compdef@*/
}
#ifdef NOTYET
static int iosmStat(/*@special@*/ /*@partial@*/ IOSM_t iosm)
/*@globals fileSystem, internalState @*/
/*@modifies iosm, fileSystem, internalState @*/
{
int rc = 0;
if (iosm->path != NULL) {
int saveernno = errno;
rc = iosmUNSAFE(iosm, (!(iosm->mapFlags & IOSM_FOLLOW_SYMLINKS)
? IOSM_LSTAT : IOSM_STAT));
if (rc == IOSMERR_ENOENT) {
errno = saveerrno;
rc = 0;
iosm->exists = 0;
} else if (rc == 0) {
iosm->exists = 1;
}
} else {
/* Skip %ghost files on build. */
iosm->exists = 0;
}
return rc;
}
#endif
#define IS_DEV_LOG(_x) \
((_x) != NULL && strlen(_x) >= (sizeof("/dev/log")-1) && \
!strncmp((_x), "/dev/log", sizeof("/dev/log")-1) && \
((_x)[sizeof("/dev/log")-1] == '\0' || \
(_x)[sizeof("/dev/log")-1] == ';'))
/*@-compmempass@*/
int iosmStage(IOSM_t iosm, iosmFileStage stage)
{
#ifdef NOTUSED
iosmFileStage prevStage = iosm->stage;
const char * const prev = iosmFileStageString(prevStage);
#endif
const char * const cur = iosmFileStageString(stage);
struct stat * st = &iosm->sb;
struct stat * ost = &iosm->osb;
int saveerrno = errno;
int rc = iosm->rc;
size_t left;
int i;
#define _fafilter(_a) \
(!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
? iosmFileActionString(_a) : "")
if (stage & IOSM_DEAD) {
/* do nothing */
} else if (stage & IOSM_INTERNAL) {
if (iosm->debug && !(stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s %06o%3d (%4d,%4d)%12lu %s %s\n",
cur,
(unsigned)st->st_mode, (int)st->st_nlink,
(int)st->st_uid, (int)st->st_gid, (unsigned long)st->st_size,
(iosm->path ? iosm->path : ""),
_fafilter(iosm->action));
} else {
const char * apath = NULL;
if (iosm->path)
(void) urlPath(iosm->path, &apath);
iosm->stage = stage;
if (iosm->debug || !(stage & IOSM_VERBOSE))
rpmlog(RPMLOG_DEBUG, "%-8s %06o%3d (%4d,%4d)%12lu %s %s\n",
cur,
(unsigned)st->st_mode, (int)st->st_nlink,
(int)st->st_uid, (int)st->st_gid, (unsigned long)st->st_size,
(apath ? apath + iosm->astriplen : ""),
_fafilter(iosm->action));
}
#undef _fafilter
switch (stage) {
case IOSM_UNKNOWN:
break;
case IOSM_PKGINSTALL:
while (1) {
/* Clean iosm, free'ing memory. Read next archive header. */
rc = iosmUNSAFE(iosm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
iosm->postpone = 1;
(void) iosmNext(iosm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Extract file from archive. */
rc = iosmNext(iosm, IOSM_PROCESS);
if (rc) {
(void) iosmNext(iosm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Notify on success. */
(void) iosmNext(iosm, IOSM_NOTIFY);
rc = iosmNext(iosm, IOSM_FINI);
if (rc) {
/*@loopbreak@*/ break;
}
}
break;
case IOSM_PKGERASE:
case IOSM_PKGCOMMIT:
while (1) {
/* Clean iosm, free'ing memory. */
rc = iosmUNSAFE(iosm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Rename/erase next item. */
if (iosmNext(iosm, IOSM_FINI))
/*@loopbreak@*/ break;
}
break;
case IOSM_PKGBUILD:
while (1) {
rc = iosmUNSAFE(iosm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
iosm->postpone = 1;
(void) iosmNext(iosm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Copy file into archive. */
rc = iosmNext(iosm, IOSM_PROCESS);
if (rc) {
(void) iosmNext(iosm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Notify on success. */
(void) iosmNext(iosm, IOSM_NOTIFY);
if (iosmNext(iosm, IOSM_FINI))
/*@loopbreak@*/ break;
}
/* Flush partial sets of hard linked files. */
if (!(iosm->mapFlags & IOSM_ALL_HARDLINKS)) {
int nlink, j;
while ((iosm->li = iosm->links) != NULL) {
iosm->links = iosm->li->next;
iosm->li->next = NULL;
/* Re-calculate link count for archive header. */
for (j = -1, nlink = 0, i = 0; i < iosm->li->nlink; i++) {
if (iosm->li->filex[i] < 0)
/*@innercontinue@*/ continue;
nlink++;
if (j == -1) j = i;
}
/* XXX force the contents out as well. */
if (j != 0) {
iosm->li->filex[0] = iosm->li->filex[j];
iosm->li->filex[j] = -1;
}
iosm->li->sb.st_nlink = nlink;
iosm->sb = iosm->li->sb; /* structure assignment */
iosm->osb = iosm->sb; /* structure assignment */
if (!rc) rc = writeLinkedFile(iosm);
iosm->li = freeHardLink(iosm->li);
}
}
if (!rc)
rc = iosmNext(iosm, IOSM_TRAILER);
break;
case IOSM_CREATE:
iosm->path = _free(iosm->path);
iosm->lpath = _free(iosm->lpath);
iosm->opath = _free(iosm->opath);
iosm->dnlx = _free(iosm->dnlx);
iosm->ldn = _free(iosm->ldn);
iosm->ldnalloc = iosm->ldnlen = 0;
iosm->rdsize = iosm->wrsize = 0;
iosm->rdbuf = iosm->rdb = _free(iosm->rdb);
iosm->wrbuf = iosm->wrb = _free(iosm->wrb);
if (iosm->goal == IOSM_PKGINSTALL || iosm->goal == IOSM_PKGBUILD) {
iosm->rdsize = 16 * BUFSIZ;
iosm->rdbuf = iosm->rdb = xmalloc(iosm->rdsize);
iosm->wrsize = 16 * BUFSIZ;
iosm->wrbuf = iosm->wrb = xmalloc(iosm->wrsize);
}
iosm->mkdirsdone = 0;
iosm->ix = -1;
iosm->links = NULL;
iosm->li = NULL;
errno = 0; /* XXX get rid of EBADF */
/* Detect and create directories not explicitly in package. */
if (iosm->goal == IOSM_PKGINSTALL) {
/*@-compdef@*/
rc = iosmNext(iosm, IOSM_MKDIRS);
/*@=compdef@*/
if (!rc) iosm->mkdirsdone = 1;
}
break;
case IOSM_INIT:
iosm->path = _free(iosm->path);
iosm->lpath = _free(iosm->lpath);
iosm->postpone = 0;
iosm->diskchecked = iosm->exists = 0;
iosm->subdir = NULL;
iosm->suffix = (iosm->sufbuf[0] != '\0' ? iosm->sufbuf : NULL);
iosm->action = FA_UNKNOWN;
iosm->osuffix = NULL;
iosm->nsuffix = NULL;
if (iosm->goal == IOSM_PKGINSTALL) {
/* Read next header from payload, checking for end-of-payload. */
rc = iosmUNSAFE(iosm, IOSM_NEXT);
}
if (rc) break;
/* Identify mapping index. */
iosm->ix = ((iosm->goal == IOSM_PKGINSTALL)
? mapFind(iosm->iter, iosm->path) : mapNextIterator(iosm->iter));
{ rpmfi fi = iosmGetFi(iosm);
if (!(fi->mapflags & IOSM_PAYLOAD_LIST)) {
/* Detect end-of-loop and/or mapping error. */
if (!(fi->mapflags & IOSM_PAYLOAD_EXTRACT)) {
if (iosm->ix < 0) {
if (iosm->goal == IOSM_PKGINSTALL) {
#if 0
rpmlog(RPMLOG_WARNING,
_("archive file %s was not found in header file list\n"),
iosm->path);
#endif
if (iosm->failedFile && *iosm->failedFile == NULL)
*iosm->failedFile = xstrdup(iosm->path);
rc = IOSMERR_UNMAPPED_FILE;
} else {
rc = IOSMERR_HDR_TRAILER;
}
break;
}
}
/* On non-install, mode must be known so that dirs don't get suffix. */
if (iosm->goal != IOSM_PKGINSTALL) {
st->st_mode = fi->fmodes[iosm->ix];
}
}
}
/* Generate file path. */
rc = iosmNext(iosm, IOSM_MAP);
if (rc) break;
/* Perform lstat/stat for disk file. */
#ifdef NOTYET
rc = iosmStat(iosm);
#else
if (iosm->path != NULL &&
!(iosm->goal == IOSM_PKGINSTALL && S_ISREG(st->st_mode)))
{
rc = iosmUNSAFE(iosm, (!(iosm->mapFlags & IOSM_FOLLOW_SYMLINKS)
? IOSM_LSTAT : IOSM_STAT));
if (rc == IOSMERR_ENOENT) {
errno = saveerrno;
rc = 0;
iosm->exists = 0;
} else if (rc == 0) {
iosm->exists = 1;
}
} else {
/* Skip %ghost files on build. */
iosm->exists = 0;
}
#endif
iosm->diskchecked = 1;
if (rc) break;
/* On non-install, the disk file stat is what's remapped. */
if (iosm->goal != IOSM_PKGINSTALL)
*st = *ost; /* structure assignment */
/* Remap file perms, owner, and group. */
rc = iosmMapAttrs(iosm);
if (rc) break;
iosm->postpone = iosmFileActionSkipped(iosm->action);
if (iosm->goal == IOSM_PKGINSTALL || iosm->goal == IOSM_PKGBUILD) {
/*@-evalorder@*/ /* FIX: saveHardLink can modify iosm */
if (S_ISREG(st->st_mode) && st->st_nlink > 1)
iosm->postpone = saveHardLink(iosm);
/*@=evalorder@*/
}
{ rpmfi fi = iosmGetFi(iosm);
if (fi->mapflags & IOSM_PAYLOAD_LIST) iosm->postpone = 1;
}
break;
case IOSM_PRE:
break;
case IOSM_MAP:
rc = iosmMapPath(iosm);
break;
case IOSM_MKDIRS:
rc = iosmMkdirs(iosm);
break;
case IOSM_RMDIRS:
if (iosm->dnlx)
rc = iosmRmdirs(iosm);
break;
case IOSM_PROCESS:
if (iosm->postpone) {
if (iosm->goal == IOSM_PKGINSTALL) {
/* XXX Skip over file body, archive headers already done. */
if (S_ISREG(st->st_mode))
rc = iosmNext(iosm, IOSM_EAT);
}
break;
}
if (iosm->goal == IOSM_PKGBUILD) {
if (iosm->fflags & RPMFILE_GHOST) /* XXX Don't if %ghost file. */
break;
if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
struct hardLink_s * li, * prev;
if (!(iosm->mapFlags & IOSM_ALL_HARDLINKS)) break;
rc = writeLinkedFile(iosm);
if (rc) break; /* W2DO? */
for (li = iosm->links, prev = NULL; li; prev = li, li = li->next)
if (li == iosm->li)
/*@loopbreak@*/ break;
if (prev == NULL)
iosm->links = iosm->li->next;
else
prev->next = iosm->li->next;
iosm->li->next = NULL;
iosm->li = freeHardLink(iosm->li);
} else {
rc = writeFile(iosm, 1);
}
break;
}
if (iosm->goal != IOSM_PKGINSTALL)
break;
if (S_ISREG(st->st_mode) && iosm->lpath != NULL) {
const char * opath = iosm->opath;
char * t = xmalloc(strlen(iosm->lpath+1) + strlen(iosm->suffix) + 1);
(void) stpcpy(t, iosm->lpath+1);
iosm->opath = t;
/* XXX link(iosm->opath, iosm->path) */
rc = iosmNext(iosm, IOSM_LINK);
if (iosm->failedFile && rc != 0 && *iosm->failedFile == NULL) {
*iosm->failedFile = xstrdup(iosm->path);
}
iosm->opath = _free(iosm->opath);
iosm->opath = opath;
break; /* XXX so that delayed hard links get skipped. */
}
if (S_ISREG(st->st_mode)) {
const char * path = iosm->path;
if (iosm->osuffix)
iosm->path = iosmFsPath(iosm, st, NULL, NULL);
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (rc == 0 && iosm->osuffix) {
const char * opath = iosm->opath;
iosm->opath = iosm->path;
iosm->path = iosmFsPath(iosm, st, NULL, iosm->osuffix);
rc = iosmNext(iosm, IOSM_RENAME);
if (!rc)
rpmlog(RPMLOG_WARNING,
_("%s saved as %s\n"),
(iosm->opath ? iosm->opath : ""),
(iosm->path ? iosm->path : ""));
iosm->path = _free(iosm->path);
iosm->opath = opath;
}
/*@-dependenttrans@*/
iosm->path = path;
/*@=dependenttrans@*/
if (!(rc == IOSMERR_ENOENT)) return rc;
rc = extractRegular(iosm);
} else if (S_ISDIR(st->st_mode)) {
mode_t st_mode = st->st_mode;
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT) {
st->st_mode &= ~07777; /* XXX abuse st->st_mode */
st->st_mode |= 00700;
rc = iosmNext(iosm, IOSM_MKDIR);
st->st_mode = st_mode; /* XXX restore st->st_mode */
}
} else if (S_ISLNK(st->st_mode)) {
assert(iosm->lpath != NULL);
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT)
rc = iosmNext(iosm, IOSM_SYMLINK);
} else if (S_ISFIFO(st->st_mode)) {
mode_t st_mode = st->st_mode;
/* This mimics cpio S_ISSOCK() behavior but probably isnt' right */
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT) {
st->st_mode = 0000; /* XXX abuse st->st_mode */
rc = iosmNext(iosm, IOSM_MKFIFO);
st->st_mode = st_mode; /* XXX restore st->st_mode */
}
} else if (S_ISCHR(st->st_mode) ||
S_ISBLK(st->st_mode) ||
/*@-unrecog@*/ S_ISSOCK(st->st_mode) /*@=unrecog@*/)
{
rc = iosmUNSAFE(iosm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT)
rc = iosmNext(iosm, IOSM_MKNOD);
} else {
/* XXX Repackaged payloads may be missing files. */
if (iosm->repackaged)
break;
/* XXX Special case /dev/log, which shouldn't be packaged anyways */
if (!IS_DEV_LOG(iosm->path))
rc = IOSMERR_UNKNOWN_FILETYPE;
}
if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
iosm->li->createdPath = iosm->li->linkIndex;
rc = iosmMakeLinks(iosm);
}
break;
case IOSM_POST:
break;
case IOSM_MKLINKS:
rc = iosmMakeLinks(iosm);
break;
case IOSM_NOTIFY: /* XXX move from iosm to psm -> tsm */
if (iosm->goal == IOSM_PKGINSTALL || iosm->goal == IOSM_PKGBUILD) {
rpmfi fi = iosmGetFi(iosm);
rpmuint64_t archivePos = fdGetCpioPos(iosm->cfd);
if (archivePos > fi->archivePos) {
fi->archivePos = (unsigned long long) archivePos;
#if defined(_USE_RPMTS)
(void) rpmtsNotify(iosmGetTs(iosm), fi->te,RPMCALLBACK_INST_PROGRESS,
fi->archivePos, fi->archiveSize);
#endif
}
}
break;
case IOSM_UNDO:
if (iosm->postpone)
break;
if (iosm->goal == IOSM_PKGINSTALL) {
/* XXX only erase if temp fn w suffix is in use */
if (iosm->sufbuf[0] != '\0')
(void) iosmNext(iosm,
(S_ISDIR(st->st_mode) ? IOSM_RMDIR : IOSM_UNLINK));
#ifdef NOTYET /* XXX remove only dirs just created, not all. */
if (iosm->dnlx)
(void) iosmNext(iosm, IOSM_RMDIRS);
#endif
errno = saveerrno;
}
if (iosm->failedFile && *iosm->failedFile == NULL)
*iosm->failedFile = xstrdup(iosm->path);
break;
case IOSM_FINI:
if (!iosm->postpone && iosm->commit) {
if (iosm->goal == IOSM_PKGINSTALL)
rc = ((S_ISREG(st->st_mode) && st->st_nlink > 1)
? iosmCommitLinks(iosm) : iosmNext(iosm, IOSM_COMMIT));
if (iosm->goal == IOSM_PKGCOMMIT)
rc = iosmNext(iosm, IOSM_COMMIT);
if (iosm->goal == IOSM_PKGERASE)
rc = iosmNext(iosm, IOSM_COMMIT);
}
iosm->path = _free(iosm->path);
iosm->lpath = _free(iosm->lpath);
iosm->opath = _free(iosm->opath);
memset(st, 0, sizeof(*st));
memset(ost, 0, sizeof(*ost));
break;
case IOSM_COMMIT:
/* Rename pre-existing modified or unmanaged file. */
if (iosm->osuffix && iosm->diskchecked &&
(iosm->exists || (iosm->goal == IOSM_PKGINSTALL && S_ISREG(st->st_mode))))
{
const char * opath = iosm->opath;
const char * path = iosm->path;
iosm->opath = iosmFsPath(iosm, st, NULL, NULL);
iosm->path = iosmFsPath(iosm, st, NULL, iosm->osuffix);
rc = iosmNext(iosm, IOSM_RENAME);
if (!rc) {
rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"),
(iosm->opath ? iosm->opath : ""),
(iosm->path ? iosm->path : ""));
}
iosm->path = _free(iosm->path);
iosm->path = path;
iosm->opath = _free(iosm->opath);
iosm->opath = opath;
}
/* Remove erased files. */
if (iosm->goal == IOSM_PKGERASE) {
if (iosm->action == FA_ERASE) {
if (S_ISDIR(st->st_mode)) {
rc = iosmNext(iosm, IOSM_RMDIR);
if (!rc) break;
switch (rc) {
case IOSMERR_ENOENT: /* XXX rmdir("/") linux 2.2.x kernel hack */
case IOSMERR_ENOTEMPTY:
/* XXX make sure that build side permits %missingok on directories. */
if (iosm->fflags & RPMFILE_MISSINGOK)
/*@innerbreak@*/ break;
/* XXX common error message. */
rpmlog(
(iosm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_("rmdir of %s failed: Directory not empty\n"),
iosm->path);
/*@innerbreak@*/ break;
default:
rpmlog(
(iosm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_("rmdir of %s failed: %s\n"),
iosm->path, strerror(errno));
/*@innerbreak@*/ break;
}
} else {
rc = iosmNext(iosm, IOSM_UNLINK);
if (!rc) break;
switch (rc) {
case IOSMERR_ENOENT:
if (iosm->fflags & RPMFILE_MISSINGOK)
/*@innerbreak@*/ break;
/*@fallthrough@*/
default:
rpmlog(
(iosm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_("unlink of %s failed: %s\n"),
iosm->path, strerror(errno));
/*@innerbreak@*/ break;
}
}
}
/* XXX Failure to remove is not (yet) cause for failure. */
if (!iosm->strict_erasures) rc = 0;
break;
}
/* XXX Special case /dev/log, which shouldn't be packaged anyways */
{ rpmfi fi = iosmGetFi(iosm);
if (!(fi->mapflags & IOSM_PAYLOAD_EXTRACT)) {
if (!S_ISSOCK(st->st_mode) && !IS_DEV_LOG(iosm->path)) {
/* Rename temporary to final file name. */
if (!S_ISDIR(st->st_mode) &&
(iosm->subdir || iosm->suffix || iosm->nsuffix))
{
iosm->opath = iosm->path;
iosm->path = iosmFsPath(iosm, st, NULL, iosm->nsuffix);
rc = iosmNext(iosm, IOSM_RENAME);
if (rc)
(void) Unlink(iosm->opath);
else if (iosm->nsuffix) {
const char * opath = iosmFsPath(iosm, st, NULL, NULL);
rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),
(opath ? opath : ""),
(iosm->path ? iosm->path : ""));
opath = _free(opath);
}
iosm->opath = _free(iosm->opath);
}
/*
* Set file security context (if not disabled).
*/
if (!rc && !getuid()) {
rc = iosmMapFContext(iosm);
if (!rc)
rc = iosmNext(iosm, IOSM_LSETFCON);
iosm->fcontext = NULL;
}
if (S_ISLNK(st->st_mode)) {
if (!rc && !getuid())
rc = iosmNext(iosm, IOSM_LCHOWN);
} else {
if (!rc && !getuid())
rc = iosmNext(iosm, IOSM_CHOWN);
if (!rc)
rc = iosmNext(iosm, IOSM_CHMOD);
if (!rc) {
time_t mtime = st->st_mtime;
if (fi->fmtimes)
st->st_mtime = fi->fmtimes[iosm->ix];
rc = iosmNext(iosm, IOSM_UTIME);
st->st_mtime = mtime;
}
}
}
}
}
/* Notify on success. */
if (!rc) rc = iosmNext(iosm, IOSM_NOTIFY);
else if (iosm->failedFile && *iosm->failedFile == NULL) {
*iosm->failedFile = iosm->path;
iosm->path = NULL;
}
break;
case IOSM_DESTROY:
iosm->path = _free(iosm->path);
/* Check for hard links missing from payload. */
while ((iosm->li = iosm->links) != NULL) {
iosm->links = iosm->li->next;
iosm->li->next = NULL;
if (iosm->goal == IOSM_PKGINSTALL &&
iosm->commit && iosm->li->linksLeft)
{
for (i = 0 ; i < iosm->li->linksLeft; i++) {
if (iosm->li->filex[i] < 0)
/*@innercontinue@*/ continue;
rc = IOSMERR_MISSING_HARDLINK;
if (iosm->failedFile && *iosm->failedFile == NULL) {
iosm->ix = iosm->li->filex[i];
if (!iosmNext(iosm, IOSM_MAP)) {
*iosm->failedFile = iosm->path;
iosm->path = NULL;
}
}
/*@loopbreak@*/ break;
}
}
if (iosm->goal == IOSM_PKGBUILD &&
(iosm->mapFlags & IOSM_ALL_HARDLINKS))
{
rc = IOSMERR_MISSING_HARDLINK;
}
iosm->li = freeHardLink(iosm->li);
}
iosm->ldn = _free(iosm->ldn);
iosm->ldnalloc = iosm->ldnlen = 0;
iosm->rdbuf = iosm->rdb = _free(iosm->rdb);
iosm->wrbuf = iosm->wrb = _free(iosm->wrb);
break;
case IOSM_VERIFY:
if (iosm->diskchecked && !iosm->exists) {
rc = IOSMERR_ENOENT;
break;
}
if (S_ISREG(st->st_mode)) {
char * path = alloca(strlen(iosm->path) + sizeof("-RPMDELETE"));
(void) stpcpy( stpcpy(path, iosm->path), "-RPMDELETE");
/*
* XXX HP-UX (and other os'es) don't permit unlink on busy
* XXX files.
*/
iosm->opath = iosm->path;
iosm->path = path;
rc = iosmNext(iosm, IOSM_RENAME);
if (!rc)
(void) iosmNext(iosm, IOSM_UNLINK);
else
rc = IOSMERR_UNLINK_FAILED;
iosm->path = iosm->opath;
iosm->opath = NULL;
return (rc ? rc : IOSMERR_ENOENT); /* XXX HACK */
/*@notreached@*/ break;
} else if (S_ISDIR(st->st_mode)) {
if (S_ISDIR(ost->st_mode)) return 0;
if (S_ISLNK(ost->st_mode)) {
rc = iosmUNSAFE(iosm, IOSM_STAT);
if (rc == IOSMERR_ENOENT) rc = 0;
if (rc) break;
errno = saveerrno;
if (S_ISDIR(ost->st_mode)) return 0;
}
} else if (S_ISLNK(st->st_mode)) {
if (S_ISLNK(ost->st_mode)) {
/* XXX NUL terminated result in iosm->rdbuf, len in iosm->rdnb. */
rc = iosmUNSAFE(iosm, IOSM_READLINK);
errno = saveerrno;
if (rc) break;
if (!strcmp(iosm->lpath, iosm->rdbuf)) return 0;
}
} else if (S_ISFIFO(st->st_mode)) {
if (S_ISFIFO(ost->st_mode)) return 0;
} else if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
if ((S_ISCHR(ost->st_mode) || S_ISBLK(ost->st_mode)) &&
(ost->st_rdev == st->st_rdev)) return 0;
} else if (S_ISSOCK(st->st_mode)) {
if (S_ISSOCK(ost->st_mode)) return 0;
}
/* XXX shouldn't do this with commit/undo. */
rc = 0;
if (iosm->stage == IOSM_PROCESS) rc = iosmNext(iosm, IOSM_UNLINK);
if (rc == 0) rc = IOSMERR_ENOENT;
return (rc ? rc : IOSMERR_ENOENT); /* XXX HACK */
/*@notreached@*/ break;
case IOSM_UNLINK:
/* XXX Remove setuid/setgid bits on possibly hard linked files. */
if (iosm->mapFlags & IOSM_SBIT_CHECK) {
struct stat stb;
if (Lstat(iosm->path, &stb) == 0 && S_ISREG(stb.st_mode) && (stb.st_mode & 06000) != 0) {
/* XXX rc = iosmNext(iosm, IOSM_CHMOD); instead */
(void)Chmod(iosm->path, stb.st_mode & 0777);
}
}
rc = Unlink(iosm->path);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", cur,
iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0)
rc = (errno == ENOENT ? IOSMERR_ENOENT : IOSMERR_UNLINK_FAILED);
break;
case IOSM_RENAME:
/* XXX Remove setuid/setgid bits on possibly hard linked files. */
if (iosm->mapFlags & IOSM_SBIT_CHECK) {
struct stat stb;
if (Lstat(iosm->path, &stb) == 0 && S_ISREG(stb.st_mode) && (stb.st_mode & 06000) != 0) {
/* XXX rc = iosmNext(iosm, IOSM_CHMOD); instead */
(void)Chmod(iosm->path, stb.st_mode & 0777);
}
}
rc = Rename(iosm->opath, iosm->path);
/* XXX Repackaged payloads may be missing files. */
if (iosm->repackaged)
rc = 0;
#if defined(ETXTBSY)
if (rc && errno == ETXTBSY) {
char * path = alloca(strlen(iosm->path) + sizeof("-RPMDELETE"));
(void) stpcpy( stpcpy(path, iosm->path), "-RPMDELETE");
/*
* XXX HP-UX (and other os'es) don't permit rename to busy
* XXX files.
*/
rc = Rename(iosm->path, path);
if (!rc) rc = Rename(iosm->opath, iosm->path);
}
#endif
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", cur,
iosm->opath, iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_RENAME_FAILED;
break;
case IOSM_MKDIR:
rc = Mkdir(iosm->path, (st->st_mode & 07777));
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
iosm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_MKDIR_FAILED;
break;
case IOSM_RMDIR:
rc = Rmdir(iosm->path);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s) %s\n", cur,
iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0)
switch (errno) {
case ENOENT: rc = IOSMERR_ENOENT; /*@switchbreak@*/ break;
case ENOTEMPTY: rc = IOSMERR_ENOTEMPTY; /*@switchbreak@*/ break;
default: rc = IOSMERR_RMDIR_FAILED; /*@switchbreak@*/ break;
}
break;
case IOSM_LSETFCON:
{ const char * iosmpath = NULL;
if (iosm->fcontext == NULL || *iosm->fcontext == '\0'
|| !strcmp(iosm->fcontext, "<<none>>"))
break;
(void) urlPath(iosm->path, &iosmpath); /* XXX iosm->path */
rc = lsetfilecon(iosmpath, (security_context_t)iosm->fcontext);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", cur,
iosm->path, iosm->fcontext,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = (errno == EOPNOTSUPP ? 0 : IOSMERR_LSETFCON_FAILED);
} break;
case IOSM_CHOWN:
rc = Chown(iosm->path, st->st_uid, st->st_gid);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
iosm->path, (int)st->st_uid, (int)st->st_gid,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_CHOWN_FAILED;
break;
case IOSM_LCHOWN:
#if ! CHOWN_FOLLOWS_SYMLINK
rc = Lchown(iosm->path, st->st_uid, st->st_gid);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
iosm->path, (int)st->st_uid, (int)st->st_gid,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_CHOWN_FAILED;
#endif
break;
case IOSM_CHMOD:
rc = Chmod(iosm->path, (st->st_mode & 07777));
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
iosm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_CHMOD_FAILED;
break;
case IOSM_UTIME:
{ struct utimbuf stamp;
stamp.actime = st->st_mtime;
stamp.modtime = st->st_mtime;
rc = Utime(iosm->path, &stamp);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, 0x%x) %s\n", cur,
iosm->path, (unsigned)st->st_mtime,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_UTIME_FAILED;
}
break;
case IOSM_SYMLINK:
rc = Symlink(iosm->lpath, iosm->path);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", cur,
iosm->lpath, iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_SYMLINK_FAILED;
break;
case IOSM_LINK:
rc = Link(iosm->opath, iosm->path);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %s) %s\n", cur,
iosm->opath, iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_LINK_FAILED;
break;
case IOSM_MKFIFO:
rc = Mkfifo(iosm->path, (st->st_mode & 07777));
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
iosm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_MKFIFO_FAILED;
break;
case IOSM_MKNOD:
/*@-unrecog -portability @*/ /* FIX: check S_IFIFO or dev != 0 */
rc = Mknod(iosm->path, (st->st_mode & ~07777), st->st_rdev);
/*@=unrecog =portability @*/
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, 0%o, 0x%x) %s\n", cur,
iosm->path, (unsigned)(st->st_mode & ~07777),
(unsigned)st->st_rdev,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_MKNOD_FAILED;
break;
case IOSM_LSTAT:
rc = Lstat(iosm->path, ost);
if (iosm->debug && (stage & IOSM_SYSCALL) && rc && errno != ENOENT)
rpmlog(RPMLOG_DEBUG, " %8s (%s, ost) %s\n", cur,
iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) {
rc = (errno == ENOENT ? IOSMERR_ENOENT : IOSMERR_LSTAT_FAILED);
memset(ost, 0, sizeof(*ost)); /* XXX s390x hackery */
}
break;
case IOSM_STAT:
rc = Stat(iosm->path, ost);
if (iosm->debug && (stage & IOSM_SYSCALL) && rc && errno != ENOENT)
rpmlog(RPMLOG_DEBUG, " %8s (%s, ost) %s\n", cur,
iosm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) {
rc = (errno == ENOENT ? IOSMERR_ENOENT : IOSMERR_STAT_FAILED);
memset(ost, 0, sizeof(*ost)); /* XXX s390x hackery */
}
break;
case IOSM_READLINK:
/* XXX NUL terminated result in iosm->rdbuf, len in iosm->rdnb. */
rc = Readlink(iosm->path, iosm->rdbuf, iosm->rdsize - 1);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, rdbuf, %d) %s\n", cur,
iosm->path, (int)(iosm->rdsize -1), (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = IOSMERR_READLINK_FAILED;
else {
iosm->rdnb = rc;
iosm->rdbuf[iosm->rdnb] = '\0';
rc = 0;
}
break;
case IOSM_CHROOT:
break;
case IOSM_NEXT:
rc = iosmUNSAFE(iosm, IOSM_HREAD);
if (rc) break;
if (!strcmp(iosm->path, CPIO_TRAILER)) { /* Detect end-of-payload. */
iosm->path = _free(iosm->path);
rc = IOSMERR_HDR_TRAILER;
}
if (!rc)
rc = iosmNext(iosm, IOSM_POS);
break;
case IOSM_EAT:
for (left = st->st_size; left > 0; left -= iosm->rdnb) {
iosm->wrlen = (left > iosm->wrsize ? iosm->wrsize : left);
rc = iosmNext(iosm, IOSM_DREAD);
if (rc)
/*@loopbreak@*/ break;
}
break;
case IOSM_POS:
left = (iosm->blksize - (fdGetCpioPos(iosm->cfd) % iosm->blksize)) % iosm->blksize;
if (left) {
iosm->wrlen = left;
(void) iosmNext(iosm, IOSM_DREAD);
}
break;
case IOSM_PAD:
left = (iosm->blksize - (fdGetCpioPos(iosm->cfd) % iosm->blksize)) % iosm->blksize;
if (left) {
if (iosm->blksize == 2)
iosm->rdbuf[0] = '\n'; /* XXX ar(1) pads with '\n' */
else
memset(iosm->rdbuf, 0, left);
/* XXX DWRITE uses rdnb for I/O length. */
iosm->rdnb = left;
(void) iosmNext(iosm, IOSM_DWRITE);
}
break;
case IOSM_TRAILER:
rc = (*iosm->trailerWrite) (iosm); /* Write payload trailer. */
break;
case IOSM_HREAD:
rc = iosmNext(iosm, IOSM_POS);
if (!rc)
rc = (*iosm->headerRead) (iosm, st); /* Read next payload header. */
break;
case IOSM_HWRITE:
rc = (*iosm->headerWrite) (iosm, st); /* Write next payload header. */
break;
case IOSM_DREAD:
iosm->rdnb = Fread(iosm->wrbuf, sizeof(*iosm->wrbuf), iosm->wrlen, iosm->cfd);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, cfd)\trdnb %d\n",
cur, (iosm->wrbuf == iosm->wrb ? "wrbuf" : "mmap"),
(int)iosm->wrlen, (int)iosm->rdnb);
if (iosm->rdnb != iosm->wrlen || Ferror(iosm->cfd))
rc = IOSMERR_READ_FAILED;
if (iosm->rdnb > 0)
fdSetCpioPos(iosm->cfd, fdGetCpioPos(iosm->cfd) + iosm->rdnb);
break;
case IOSM_DWRITE:
iosm->wrnb = Fwrite(iosm->rdbuf, sizeof(*iosm->rdbuf), iosm->rdnb, iosm->cfd);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, %d, cfd)\twrnb %d\n",
cur, (iosm->rdbuf == iosm->rdb ? "rdbuf" : "mmap"),
(int)iosm->rdnb, (int)iosm->wrnb);
if (iosm->rdnb != iosm->wrnb || Ferror(iosm->cfd))
rc = IOSMERR_WRITE_FAILED;
if (iosm->wrnb > 0)
fdSetCpioPos(iosm->cfd, fdGetCpioPos(iosm->cfd) + iosm->wrnb);
break;
case IOSM_ROPEN:
iosm->rfd = Fopen(iosm->path, "r.fdio");
if (iosm->rfd == NULL || Ferror(iosm->rfd)) {
if (iosm->rfd != NULL) (void) iosmNext(iosm, IOSM_RCLOSE);
iosm->rfd = NULL;
rc = IOSMERR_OPEN_FAILED;
break;
}
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, \"r\") rfd %p rdbuf %p\n", cur,
iosm->path, iosm->rfd, iosm->rdbuf);
break;
case IOSM_READ:
iosm->rdnb = Fread(iosm->rdbuf, sizeof(*iosm->rdbuf), iosm->rdlen, iosm->rfd);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (rdbuf, %d, rfd)\trdnb %d\n",
cur, (int)iosm->rdlen, (int)iosm->rdnb);
if (iosm->rdnb != iosm->rdlen || Ferror(iosm->rfd))
rc = IOSMERR_READ_FAILED;
break;
case IOSM_RCLOSE:
if (iosm->rfd != NULL) {
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%p)\n", cur, iosm->rfd);
(void) rpmswAdd(&iosm->op_digest,
fdstat_op(iosm->rfd, FDSTAT_DIGEST));
(void) Fclose(iosm->rfd);
errno = saveerrno;
}
iosm->rfd = NULL;
break;
case IOSM_WOPEN:
iosm->wfd = Fopen(iosm->path, "w.fdio");
if (iosm->wfd == NULL || Ferror(iosm->wfd)) {
if (iosm->wfd != NULL) (void) iosmNext(iosm, IOSM_WCLOSE);
iosm->wfd = NULL;
rc = IOSMERR_OPEN_FAILED;
}
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%s, \"w\") wfd %p wrbuf %p\n", cur,
iosm->path, iosm->wfd, iosm->wrbuf);
break;
case IOSM_WRITE:
iosm->wrnb = Fwrite(iosm->wrbuf, sizeof(*iosm->wrbuf), iosm->rdnb, iosm->wfd);
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (wrbuf, %d, wfd)\twrnb %d\n",
cur, (int)iosm->rdnb, (int)iosm->wrnb);
if (iosm->rdnb != iosm->wrnb || Ferror(iosm->wfd))
rc = IOSMERR_WRITE_FAILED;
break;
case IOSM_WCLOSE:
if (iosm->wfd != NULL) {
if (iosm->debug && (stage & IOSM_SYSCALL))
rpmlog(RPMLOG_DEBUG, " %8s (%p)\n", cur, iosm->wfd);
(void) rpmswAdd(&iosm->op_digest,
fdstat_op(iosm->wfd, FDSTAT_DIGEST));
(void) Fclose(iosm->wfd);
errno = saveerrno;
}
iosm->wfd = NULL;
break;
default:
break;
}
if (!(stage & IOSM_INTERNAL)) {
iosm->rc = (rc == IOSMERR_HDR_TRAILER ? 0 : rc);
}
return rc;
}
/*@=compmempass@*/
#define IOSM_SKIPPING(_a) \
((_a) == FA_SKIP || (_a) == FA_SKIPNSTATE || (_a) == FA_SKIPNETSHARED || (_a) == FA_SKIPCOLOR)
int iosmFileActionSkipped(iosmFileAction action)
{
return IOSM_SKIPPING(action);
}
/*@observer@*/ const char * iosmFileActionString(iosmFileAction a)
{
switch (a) {
case FA_UNKNOWN: return "unknown";
case FA_CREATE: return "create";
case FA_COPYOUT: return "copyout";
case FA_COPYIN: return "copyin";
case FA_BACKUP: return "backup";
case FA_SAVE: return "save";
case FA_SKIP: return "skip";
case FA_ALTNAME: return "altname";
case FA_ERASE: return "erase";
case FA_SKIPNSTATE: return "skipnstate";
case FA_SKIPNETSHARED: return "skipnetshared";
case FA_SKIPCOLOR: return "skipcolor";
default: return "???";
}
/*@notreached@*/
}
/*@observer@*/ const char * iosmFileStageString(iosmFileStage a) {
switch(a) {
case IOSM_UNKNOWN: return "unknown";
case IOSM_PKGINSTALL:return "INSTALL";
case IOSM_PKGERASE: return "ERASE";
case IOSM_PKGBUILD: return "BUILD";
case IOSM_PKGCOMMIT: return "COMMIT";
case IOSM_PKGUNDO: return "UNDO";
case IOSM_CREATE: return "create";
case IOSM_INIT: return "init";
case IOSM_MAP: return "map";
case IOSM_MKDIRS: return "mkdirs";
case IOSM_RMDIRS: return "rmdirs";
case IOSM_PRE: return "pre";
case IOSM_PROCESS: return "process";
case IOSM_POST: return "post";
case IOSM_MKLINKS: return "mklinks";
case IOSM_NOTIFY: return "notify";
case IOSM_UNDO: return "undo";
case IOSM_FINI: return "fini";
case IOSM_COMMIT: return "commit";
case IOSM_DESTROY: return "destroy";
case IOSM_VERIFY: return "verify";
case IOSM_UNLINK: return "Unlink";
case IOSM_RENAME: return "Rename";
case IOSM_MKDIR: return "Mkdir";
case IOSM_RMDIR: return "Rmdir";
case IOSM_LSETFCON: return "lsetfcon";
case IOSM_CHOWN: return "Chown";
case IOSM_LCHOWN: return "Lchown";
case IOSM_CHMOD: return "Chmod";
case IOSM_UTIME: return "Utime";
case IOSM_SYMLINK: return "Symlink";
case IOSM_LINK: return "Link";
case IOSM_MKFIFO: return "Mkfifo";
case IOSM_MKNOD: return "Mknod";
case IOSM_LSTAT: return "Lstat";
case IOSM_STAT: return "Stat";
case IOSM_READLINK: return "Readlink";
case IOSM_CHROOT: return "Chroot";
case IOSM_NEXT: return "next";
case IOSM_EAT: return "eat";
case IOSM_POS: return "pos";
case IOSM_PAD: return "pad";
case IOSM_TRAILER: return "trailer";
case IOSM_HREAD: return "hread";
case IOSM_HWRITE: return "hwrite";
case IOSM_DREAD: return "Fread";
case IOSM_DWRITE: return "Fwrite";
case IOSM_ROPEN: return "Fopen";
case IOSM_READ: return "Fread";
case IOSM_RCLOSE: return "Fclose";
case IOSM_WOPEN: return "Fopen";
case IOSM_WRITE: return "Fwrite";
case IOSM_WCLOSE: return "Fclose";
default: return "???";
}
/*@noteached@*/
}
char * iosmStrerror(int rc)
{
char msg[256];
char *s;
int l, myerrno = errno;
strcpy(msg, "cpio: ");
switch (rc) {
default:
s = msg + strlen(msg);
sprintf(s, _("(error 0x%x)"), (unsigned)rc);
s = NULL;
break;
case IOSMERR_BAD_MAGIC: s = _("Bad magic"); break;
case IOSMERR_BAD_HEADER: s = _("Bad/unreadable header"); break;
case IOSMERR_OPEN_FAILED: s = "open"; break;
case IOSMERR_CHMOD_FAILED: s = "chmod"; break;
case IOSMERR_CHOWN_FAILED: s = "chown"; break;
case IOSMERR_WRITE_FAILED: s = "write"; break;
case IOSMERR_UTIME_FAILED: s = "utime"; break;
case IOSMERR_UNLINK_FAILED: s = "unlink"; break;
case IOSMERR_RENAME_FAILED: s = "rename"; break;
case IOSMERR_SYMLINK_FAILED: s = "symlink"; break;
case IOSMERR_STAT_FAILED: s = "stat"; break;
case IOSMERR_LSTAT_FAILED: s = "lstat"; break;
case IOSMERR_MKDIR_FAILED: s = "mkdir"; break;
case IOSMERR_RMDIR_FAILED: s = "rmdir"; break;
case IOSMERR_MKNOD_FAILED: s = "mknod"; break;
case IOSMERR_MKFIFO_FAILED: s = "mkfifo"; break;
case IOSMERR_LINK_FAILED: s = "link"; break;
case IOSMERR_READLINK_FAILED: s = "readlink"; break;
case IOSMERR_READ_FAILED: s = "read"; break;
case IOSMERR_COPY_FAILED: s = "copy"; break;
case IOSMERR_LSETFCON_FAILED: s = "lsetfilecon"; break;
case IOSMERR_HDR_SIZE: s = _("Header size too big"); break;
case IOSMERR_UNKNOWN_FILETYPE: s = _("Unknown file type"); break;
case IOSMERR_MISSING_HARDLINK: s = _("Missing hard link(s)"); break;
case IOSMERR_DIGEST_MISMATCH: s = _("File digest mismatch"); break;
case IOSMERR_INTERNAL: s = _("Internal error"); break;
case IOSMERR_UNMAPPED_FILE: s = _("Archive file not in header"); break;
case IOSMERR_ENOENT: s = strerror(ENOENT); break;
case IOSMERR_ENOTEMPTY: s = strerror(ENOTEMPTY); break;
}
l = sizeof(msg) - strlen(msg) - 1;
if (s != NULL) {
if (l > 0) strncat(msg, s, l);
l -= strlen(s);
}
if ((rc & IOSMERR_CHECK_ERRNO) && myerrno) {
s = _(" failed - ");
if (l > 0) strncat(msg, s, l);
l -= strlen(s);
if (l > 0) strncat(msg, strerror(myerrno), l);
}
return xstrdup(msg);
}