fsm.c
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#include "system.h"
#include <rpmio_internal.h> /* XXX urlPath, fdGetCpioPos */
#include <rpmcb.h> /* XXX fnpyKey */
#include <rpmtag.h>
#include <rpmtypes.h>
#define _RPMFI_INTERNAL
#include "rpmfi.h"
#define _IOSM_INTERNAL
#include <fsm.h>
#define fsmUNSAFE fsmStage
#if defined(SUPPORT_AR_PAYLOADS)
#include "ar.h"
#endif
#include "cpio.h"
#include "tar.h"
#define _USE_RPMTE
#if defined(_USE_RPMTE)
#include "rpmte.h"
#endif
#include "rpmts.h"
#include "rpmsq.h"
#include "ugid.h" /* XXX unameToUid() and gnameToGid() */
#include "debug.h"
/*@access FD_t @*/ /* XXX void ptr args */
/*@access FSMI_t @*/
/*@access IOSM_t @*/
/*@access IOSMI_t @*/
/*@access rpmfi @*/
/*@access rpmsx @*/ /* XXX cast */
/*@access rpmte @*/ /* XXX cast */
/*@access rpmts @*/ /* XXX cast */
#define alloca_strdup(_s) strcpy(alloca(strlen(_s)+1), (_s))
#define _FSM_DEBUG 0
/*@unchecked@*/
int _fsm_debug = _FSM_DEBUG;
/*@-exportheadervar@*/
/*@unchecked@*/
int _fsm_threads = 0;
/*@=exportheadervar@*/
static rpmts fsmGetTs(const IOSM_t fsm)
/*@*/
{
const FSMI_t iter = fsm->iter;
/*@-compdef -refcounttrans -retexpose -usereleased @*/
return (iter ? iter->ts : NULL);
/*@=compdef =refcounttrans =retexpose =usereleased @*/
}
static rpmfi fsmGetFi(const IOSM_t fsm)
/*@*/
{
const FSMI_t iter = fsm->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 * fsmFsPath(/*@special@*/ /*@null@*/ const IOSM_t fsm,
/*@null@*/ const struct stat * st,
/*@null@*/ const char * subdir,
/*@null@*/ const char * suffix)
/*@uses fsm->dirName, fsm->baseName */
/*@*/
{
const char * s = NULL;
if (fsm) {
char * t;
int nb;
nb = strlen(fsm->dirName) +
(st && !S_ISDIR(st->st_mode) ? (subdir ? strlen(subdir) : 0) : 0) +
(st && !S_ISDIR(st->st_mode) ? (suffix ? strlen(suffix) : 0) : 0) +
strlen(fsm->baseName) + 1;
s = t = xmalloc(nb);
t = stpcpy(t, fsm->dirName);
if (st && !S_ISDIR(st->st_mode))
if (subdir) t = stpcpy(t, subdir);
t = stpcpy(t, fsm->baseName);
if (st && !S_ISDIR(st->st_mode))
if (suffix) t = stpcpy(t, suffix);
}
return s;
}
static /*@null@*/ void * mapFreeIterator(/*@only@*//*@null@*/ void * p)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
FSMI_t iter = p;
if (iter) {
iter->fi = rpmfiUnlink(iter->fi, "mapIterator");
/*@-internalglobs@*/ /* XXX rpmswExit() */
(void)rpmtsFree(iter->ts);
iter->ts = NULL;
/*@=internalglobs@*/
}
return _free(p);
}
static void *
mapInitIterator(rpmfi fi, int reverse)
/*@modifies fi @*/
{
FSMI_t iter = NULL;
iter = xcalloc(1, sizeof(*iter));
/*@-assignexpose -castexpose @*/
iter->fi = rpmfiLink(fi, "mapIterator");
/*@=assignexpose =castexpose @*/
iter->reverse = reverse;
iter->i = (iter->reverse ? (fi->fc - 1) : 0);
iter->isave = iter->i;
return iter;
}
static int mapNextIterator(/*@null@*/ void * a)
/*@*/
{
FSMI_t iter = a;
int i = -1;
if (iter) {
/*@-onlytrans@*/
const rpmfi fi = iter->fi;
/*@=onlytrans@*/
if (iter->reverse) {
if (iter->i >= 0) i = iter->i--;
} else {
if (iter->i < (int)fi->fc) i = iter->i++;
}
iter->isave = i;
}
return i;
}
static int cpioStrCmp(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@*/ FSMI_t iter, const char * fsmPath)
/*@modifies iter @*/
{
int ix = -1;
if (iter) {
/*@-onlytrans@*/
const rpmfi fi = iter->fi;
/*@=onlytrans@*/
size_t fc = rpmfiFC(fi);
if (fi && fc > 0 && fi->apath && fsmPath && *fsmPath) {
const char ** p = NULL;
if (fi->apath != NULL)
p = bsearch(&fsmPath, fi->apath, fc, sizeof(fsmPath),
cpioStrCmp);
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 fsm,
int reverse)
/*@uses fsm->iter @*/
/*@*/
{
rpmfi fi = fsmGetFi(fsm);
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 ((fi = rpmfiInit(fi, 0)) != NULL)
while ((i = rpmfiNext(fi)) >= 0) {
if (!iosmFileActionSkipped(fi->actions[i])) dnli->active[fi->dil[i]] = 1;
}
/* Exclude parent directories that are explicitly included. */
if ((fi = rpmfiInit(fi, 0)) != NULL)
while ((i = rpmfiNext(fi)) >= 0) {
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] = 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 * fsmThread(void * arg)
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies arg, fileSystem, internalState @*/
{
IOSM_t fsm = arg;
/*@-unqualifiedtrans@*/
return ((void *) ((long)fsmStage(fsm, fsm->nstage)));
/*@=unqualifiedtrans@*/
}
#endif
int fsmNext(IOSM_t fsm, iosmFileStage nstage)
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
fsm->nstage = nstage;
#if defined(WITH_PTHREADS)
if (fsm->multithreaded)
return rpmsqJoin( rpmsqThread(fsmThread, fsm) );
#endif
return fsmStage(fsm, fsm->nstage);
}
static int saveHardLink(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->links, fsm->ix, fsm->sb, fsm->goal, fsm->nsuffix @*/
/*@defines fsm->li @*/
/*@releases fsm->path @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
struct stat * st = &fsm->sb;
int rc = 0;
int ix = -1;
int j;
/* Find hard link set. */
for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
break;
}
/* New hard link encountered, add new link to set. */
if (fsm->li == NULL) {
fsm->li = xcalloc(1, sizeof(*fsm->li));
fsm->li->next = NULL;
fsm->li->sb = *st; /* structure assignment */
fsm->li->nlink = (int) st->st_nlink;
fsm->li->linkIndex = fsm->ix;
fsm->li->createdPath = -1;
fsm->li->filex = xcalloc(st->st_nlink, sizeof(fsm->li->filex[0]));
memset(fsm->li->filex, -1, (st->st_nlink * sizeof(fsm->li->filex[0])));
fsm->li->nsuffix = xcalloc(st->st_nlink, sizeof(*fsm->li->nsuffix));
if (fsm->goal == IOSM_PKGBUILD)
fsm->li->linksLeft = (int) st->st_nlink;
if (fsm->goal == IOSM_PKGINSTALL)
fsm->li->linksLeft = 0;
/*@-kepttrans@*/
fsm->li->next = fsm->links;
/*@=kepttrans@*/
fsm->links = fsm->li;
}
if (fsm->goal == IOSM_PKGBUILD) --fsm->li->linksLeft;
fsm->li->filex[fsm->li->linksLeft] = fsm->ix;
/*@-observertrans -dependenttrans@*/
fsm->li->nsuffix[fsm->li->linksLeft] = fsm->nsuffix;
/*@=observertrans =dependenttrans@*/
if (fsm->goal == IOSM_PKGINSTALL) fsm->li->linksLeft++;
if (fsm->goal == IOSM_PKGBUILD)
return (fsm->li->linksLeft > 0);
if (fsm->goal != IOSM_PKGINSTALL)
return 0;
if (!(st->st_size || fsm->li->linksLeft == (int) st->st_nlink))
return 1;
/* Here come the bits, time to choose a non-skipped file name. */
{ rpmfi fi = fsmGetFi(fsm);
for (j = fsm->li->linksLeft - 1; j >= 0; j--) {
ix = fsm->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. */
fsm->li->linkIndex = j;
fsm->path = _free(fsm->path);
fsm->ix = ix;
rc = fsmNext(fsm, 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 newFSM(void)
{
IOSM_t fsm = xcalloc(1, sizeof(*fsm));
return fsm;
}
IOSM_t freeFSM(IOSM_t fsm)
{
if (fsm) {
fsm->path = _free(fsm->path);
while ((fsm->li = fsm->links) != NULL) {
fsm->links = fsm->li->next;
fsm->li->next = NULL;
fsm->li = freeHardLink(fsm->li);
}
fsm->dnlx = _free(fsm->dnlx);
fsm->ldn = _free(fsm->ldn);
fsm->iter = mapFreeIterator(fsm->iter);
}
return _free(fsm);
}
#if defined(SUPPORT_AR_PAYLOADS)
static int arSetup(IOSM_t fsm, rpmfi fi)
/*@modifies fsm @*/
{
const char * path;
char * t;
size_t lmtablen = 0;
size_t nb;
/* Calculate size of ar(1) long member table. */
if ((fi = rpmfiInit(fi, 0)) != NULL)
while (rpmfiNext(fi) >= 0) {
#ifdef NOTYET
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[ix], &apath);
path = apath + fi->striplen;
} else
#endif
path = rpmfiBN(fi);
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. */
fsm->lmtab = t = xmalloc(lmtablen + 1); /* trailing \0 */
fsm->lmtablen = lmtablen;
fsm->lmtaboff = 0;
if ((fi = rpmfiInit(fi, 0)) != NULL)
while (rpmfiNext(fi) >= 0) {
#ifdef NOTYET
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[ix], &apath);
path = apath + fi->striplen;
} else
#endif
path = rpmfiBN(fi);
if ((nb = strlen(path)) < 15)
continue;
t = stpcpy(t, path);
*t++ = '\n';
}
*t = '\0';
return 0;
}
#endif
int fsmSetup(void * _fsm, iosmFileStage goal, const char * afmt,
const void * _ts, const void * _fi, FD_t cfd,
unsigned int * archiveSize, const char ** failedFile)
{
IOSM_t fsm = _fsm;
/*@-castexpose@*/
const rpmts ts = (const rpmts) _ts;
const rpmfi fi = (const rpmfi) _fi;
/*@=castexpose@*/
#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;
fsm->debug = _fsm_debug;
fsm->multithreaded = _fsm_threads;
fsm->adding = adding;
/*@+voidabstract -nullpass@*/
if (fsm->debug < 0)
fprintf(stderr, "--> fsmSetup(%p, 0x%x, \"%s\", %p, %p, %p, %p, %p)\n", fsm, goal, afmt, (void *)ts, fi, cfd, archiveSize, failedFile);
/*@=voidabstract =nullpass@*/
_iosmNext = &fsmNext;
if (fsm->headerRead == NULL) {
if (afmt != NULL && (!strcmp(afmt, "tar") || !strcmp(afmt, "ustar"))) {
if (fsm->debug < 0)
fprintf(stderr, "\ttar vectors set\n");
fsm->headerRead = &tarHeaderRead;
fsm->headerWrite = &tarHeaderWrite;
fsm->trailerWrite = &tarTrailerWrite;
fsm->blksize = TAR_BLOCK_SIZE;
} else
#if defined(SUPPORT_AR_PAYLOADS)
if (afmt != NULL && !strcmp(afmt, "ar")) {
if (fsm->debug < 0)
fprintf(stderr, "\tar vectors set\n");
fsm->headerRead = &arHeaderRead;
fsm->headerWrite = &arHeaderWrite;
fsm->trailerWrite = &arTrailerWrite;
fsm->blksize = 2;
if (goal == IOSM_PKGBUILD || goal == IOSM_PKGERASE)
(void) arSetup(fsm, fi);
} else
#endif
{
if (fsm->debug < 0)
fprintf(stderr, "\tcpio vectors set\n");
fsm->headerRead = &cpioHeaderRead;
fsm->headerWrite = &cpioHeaderWrite;
fsm->trailerWrite = &cpioTrailerWrite;
fsm->blksize = 4;
}
}
fsm->goal = goal;
if (cfd != NULL) {
/*@-assignexpose -castexpose @*/
fsm->cfd = fdLink(cfd, "persist (fsm)");
/*@=assignexpose =castexpose @*/
pos = fdGetCpioPos(fsm->cfd);
fdSetCpioPos(fsm->cfd, 0);
}
/*@-mods@*/ /* LCL: avoid void * _ts/_fi annotations for now. */
fsm->iter = mapInitIterator(fi, reverse);
/*@-assignexpose -castexpose @*/
fsm->iter->ts = rpmtsLink(ts, "mapIterator");
/*@=assignexpose =castexpose @*/
fsm->nofcontexts = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOCONTEXTS);
/*@=mods@*/
fsm->nofdigests =
(ts != NULL && !(rpmtsFlags(ts) & RPMTRANS_FLAG_NOFDIGESTS))
? 0 : 1;
#define _tsmask (RPMTRANS_FLAG_PKGCOMMIT | RPMTRANS_FLAG_COMMIT)
fsm->commit = ((ts && (rpmtsFlags(ts) & _tsmask) &&
fsm->goal != IOSM_PKGCOMMIT) ? 0 : 1);
#undef _tsmask
if (fsm->goal == IOSM_PKGINSTALL || fsm->goal == IOSM_PKGBUILD) {
void * ptr;
fi->archivePos = 0;
ptr = rpmtsNotify(ts, fi->te,
RPMCALLBACK_INST_START, fi->archivePos, fi->archiveSize);
}
/*@-assignexpose@*/
fsm->archiveSize = archiveSize;
if (fsm->archiveSize)
*fsm->archiveSize = 0;
fsm->failedFile = failedFile;
if (fsm->failedFile)
*fsm->failedFile = NULL;
/*@=assignexpose@*/
memset(fsm->sufbuf, 0, sizeof(fsm->sufbuf));
if (fsm->goal == IOSM_PKGINSTALL) {
if (ts && rpmtsGetTid(ts) != (rpmuint32_t)-1)
sprintf(fsm->sufbuf, ";%08x", (unsigned)rpmtsGetTid(ts));
}
ec = fsm->rc = 0;
/*@-mods@*/ /* LCL: avoid void * _fsm annotation for now. */
rc = fsmUNSAFE(fsm, IOSM_CREATE);
/*@=mods@*/
if (rc && !ec) ec = rc;
/*@-mods@*/ /* LCL: avoid void * _fsm annotation for now. */
rc = fsmUNSAFE(fsm, fsm->goal);
/*@=mods@*/
if (rc && !ec) ec = rc;
if (fsm->archiveSize && ec == 0)
*fsm->archiveSize = (fdGetCpioPos(fsm->cfd) - pos);
/*@-nullstate@*/ /* FIX: *fsm->failedFile may be NULL */
return ec;
/*@=nullstate@*/
}
int fsmTeardown(void * _fsm)
{
IOSM_t fsm = _fsm;
int rc = fsm->rc;
if (fsm->debug < 0)
fprintf(stderr, "--> fsmTeardown(%p)\n", fsm);
if (!rc)
rc = fsmUNSAFE(fsm, IOSM_DESTROY);
(void) rpmswAdd(rpmtsOp(fsmGetTs(fsm), RPMTS_OP_DIGEST),
&fsm->op_digest);
fsm->lmtab = _free(fsm->lmtab);
(void)rpmtsFree(fsm->iter->ts);
fsm->iter->ts = NULL;
fsm->iter = mapFreeIterator(fsm->iter);
if (fsm->cfd != NULL) {
/*@-refcounttrans@*/ /* FIX: XfdFree annotation */
fsm->cfd = fdFree(fsm->cfd, "persist (fsm)");
/*@=refcounttrans@*/
fsm->cfd = NULL;
}
fsm->failedFile = NULL;
return rc;
}
/*
* Set file security context (if not disabled).
* @param fsm file state machine data
* @return 0 always
*/
static int fsmMapFContext(IOSM_t fsm)
/*@modifies fsm @*/
{
fsm->fcontext = NULL;
if (!fsm->nofcontexts) {
security_context_t scon = NULL;
/*@-moduncon@*/
int xx = matchpathcon(fsm->path, fsm->sb.st_mode, &scon);
/*@=moduncon@*/
if (!xx && scon != NULL)
fsm->fcontext = scon;
#ifdef DYING /* XXX SELinux file contexts not set from package content. */
else {
rpmfi fi = fsmGetFi(fsm);
int i = fsm->ix;
/* Get file security context from package. */
if (fi && i >= 0 && i < (int)fi->fc)
fsm->fcontext = (fi->fcontexts ? fi->fcontexts[i] : NULL);
}
#endif
}
return 0;
}
int fsmMapPath(IOSM_t fsm)
{
rpmfi fi = fsmGetFi(fsm); /* XXX const except for fstates */
int teAdding = fsm->adding;
int rc = 0;
int i = fsm->ix;
fsm->osuffix = NULL;
fsm->nsuffix = NULL;
fsm->astriplen = 0;
fsm->action = FA_UNKNOWN;
fsm->mapFlags = fi->mapflags;
if (fi && i >= 0 && i < (int)fi->fc) {
fsm->astriplen = fi->astriplen;
fsm->action = (fi->actions ? fi->actions[i] : fi->action);
fsm->fflags = (fi->fflags ? fi->fflags[i] : fi->flags);
fsm->mapFlags = (fi->fmapflags ? fi->fmapflags[i] : fi->mapflags);
/* src rpms have simple base name in payload. */
fsm->dirName = fi->dnl[fi->dil[i]];
fsm->baseName = fi->bnl[i];
switch (fsm->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] = RPMFILE_STATE_NOTINSTALLED;
break;
case FA_SKIPNETSHARED:
if (fi->fstates && teAdding)
fi->fstates[i] = RPMFILE_STATE_NETSHARED;
break;
case FA_SKIPCOLOR:
if (fi->fstates && teAdding)
fi->fstates[i] = RPMFILE_STATE_WRONGCOLOR;
break;
case FA_BACKUP:
if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
fsm->osuffix = (teAdding ? SUFFIX_RPMORIG : SUFFIX_RPMSAVE);
break;
case FA_ALTNAME:
assert(teAdding);
if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
fsm->nsuffix = SUFFIX_RPMNEW;
break;
case FA_SAVE:
assert(teAdding);
if (!(fsm->fflags & RPMFILE_GHOST)) /* XXX Don't if %ghost file. */
fsm->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 ((fsm->mapFlags & IOSM_MAP_PATH) || fsm->nsuffix) {
const struct stat * st = &fsm->sb;
fsm->path = _free(fsm->path);
fsm->path = fsmFsPath(fsm, st, fsm->subdir,
(fsm->suffix ? fsm->suffix : fsm->nsuffix));
}
}
return rc;
}
int fsmMapAttrs(IOSM_t fsm)
{
struct stat * st = &fsm->sb;
rpmfi fi = fsmGetFi(fsm);
int i = fsm->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 = (dev_t)(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 (fsm->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 (fsm->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 (fsm->mapFlags & IOSM_MAP_MODE)
st->st_mode = (st->st_mode & S_IFMT) | (finalMode & ~S_IFMT);
if (fsm->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 (fsm->mapFlags & IOSM_MAP_UID)
st->st_uid = uid;
if (fsm->mapFlags & IOSM_MAP_GID)
st->st_gid = gid;
/*
* Set file digest (if not disabled).
*/
if (!fsm->nofdigests) {
fsm->fdigestalgo = fi->digestalgo;
fsm->fdigest = (fi->fdigests ? fi->fdigests[i] : NULL);
fsm->digestlen = fi->digestlen;
fsm->digest = (fi->digests ? (fi->digests + (fsm->digestlen * i)) : NULL);
} else {
fsm->fdigestalgo = 0;
fsm->fdigest = NULL;
fsm->digestlen = 0;
fsm->digest = NULL;
}
}
return 0;
}
/*@-compdef@*/
static int extractRegular(/*@special@*/ IOSM_t fsm)
/*@uses fsm->fdigest, fsm->digest, fsm->sb, fsm->wfd @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const struct stat * st = &fsm->sb;
size_t left = (size_t) st->st_size;
int rc = 0;
int xx;
rc = fsmNext(fsm, IOSM_WOPEN);
if (rc)
goto exit;
if (st->st_size > 0 && (fsm->fdigest != NULL || fsm->digest != NULL))
fdInitDigest(fsm->wfd, fsm->fdigestalgo, 0);
while (left) {
fsm->wrlen = (left > fsm->wrsize ? fsm->wrsize : left);
rc = fsmNext(fsm, IOSM_DREAD);
if (rc)
goto exit;
rc = fsmNext(fsm, IOSM_WRITE);
if (rc)
goto exit;
left -= fsm->wrnb;
/* Notify iff progress, completion is done elsewhere */
if (!rc && left)
(void) fsmNext(fsm, IOSM_NOTIFY);
}
xx = fsync(Fileno(fsm->wfd));
if (st->st_size > 0 && (fsm->fdigest || fsm->digest)) {
void * digest = NULL;
int asAscii = (fsm->digest == NULL ? 1 : 0);
(void) Fflush(fsm->wfd);
fdFiniDigest(fsm->wfd, fsm->fdigestalgo, &digest, NULL, asAscii);
if (digest == NULL) {
rc = IOSMERR_DIGEST_MISMATCH;
goto exit;
}
if (fsm->digest != NULL) {
if (memcmp(digest, fsm->digest, fsm->digestlen))
rc = IOSMERR_DIGEST_MISMATCH;
} else {
if (strcmp(digest, fsm->fdigest))
rc = IOSMERR_DIGEST_MISMATCH;
}
digest = _free(digest);
}
exit:
(void) fsmNext(fsm, IOSM_WCLOSE);
return rc;
}
/*@=compdef@*/
/*@-compdef -compmempass@*/
static int writeFile(/*@special@*/ /*@partial@*/ IOSM_t fsm, int writeData)
/*@uses fsm->path, fsm->opath, fsm->sb, fsm->osb, fsm->cfd @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const char * path = fsm->path;
const char * opath = fsm->opath;
struct stat * st = &fsm->sb;
struct stat * ost = &fsm->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 fsm->rdbuf, len in fsm->rdnb. */
rc = fsmUNSAFE(fsm, IOSM_READLINK);
if (rc) goto exit;
st->st_size = fsm->rdnb;
fsm->lpath = xstrdup(fsm->rdbuf); /* XXX save readlink return. */
}
if (fsm->mapFlags & IOSM_MAP_ABSOLUTE) {
size_t nb= strlen(fsm->dirName) + strlen(fsm->baseName) + sizeof(".");
char * t = alloca(nb);
*t = '\0';
fsm->path = t;
if (fsm->mapFlags & IOSM_MAP_ADDDOT)
*t++ = '.';
t = stpcpy( stpcpy(t, fsm->dirName), fsm->baseName);
} else if (fsm->mapFlags & IOSM_MAP_PATH) {
rpmfi fi = fsmGetFi(fsm);
if (fi->apath) {
const char * apath = NULL;
(void) urlPath(fi->apath[fsm->ix], &apath);
fsm->path = apath + fi->striplen;
} else
fsm->path = fi->bnl[fsm->ix];
}
rc = fsmNext(fsm, IOSM_HWRITE);
fsm->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 = fsmNext(fsm, 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(fsm->rfd), 0);
if (mapped != (void *)-1) {
rdbuf = fsm->rdbuf;
fsm->rdbuf = (char *) mapped;
fsm->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) {
fsm->rdnb = nmapped;
} else
#endif
{
fsm->rdlen = (left > fsm->rdsize ? fsm->rdsize : left),
rc = fsmNext(fsm, IOSM_READ);
if (rc) goto exit;
}
/* XXX DWRITE uses rdnb for I/O length. */
rc = fsmNext(fsm, IOSM_DWRITE);
if (rc) goto exit;
left -= fsm->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);
fsm->rdbuf = rdbuf;
} else
#endif
xx = fsync(Fileno(fsm->rfd));
}
rc = fsmNext(fsm, IOSM_PAD);
if (rc) goto exit;
rc = 0;
exit:
if (fsm->rfd != NULL)
(void) fsmNext(fsm, IOSM_RCLOSE);
/*@-dependenttrans@*/
fsm->opath = opath;
fsm->path = path;
/*@=dependenttrans@*/
return rc;
}
/*@=compdef =compmempass@*/
static int writeLinkedFile(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->path, fsm->nsuffix, fsm->ix, fsm->li, fsm->failedFile @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const char * path = fsm->path;
const char * lpath = fsm->lpath;
const char * nsuffix = fsm->nsuffix;
int iterIndex = fsm->ix;
int ec = 0;
int rc;
int i;
const char * linkpath = NULL;
int firstfile = 1;
fsm->path = NULL;
fsm->lpath = NULL;
fsm->nsuffix = NULL;
fsm->ix = -1;
for (i = fsm->li->nlink - 1; i >= 0; i--) {
if (fsm->li->filex[i] < 0) continue;
fsm->ix = fsm->li->filex[i];
/*@-compdef@*/
rc = fsmNext(fsm, IOSM_MAP);
/*@=compdef@*/
/* XXX tar and cpio have to do things differently. */
if (fsm->headerWrite == tarHeaderWrite) {
if (firstfile) {
const char * apath = NULL;
char *t;
(void) urlPath(fsm->path, &apath);
/* Remove the buildroot prefix. */
t = xmalloc(sizeof(".") + strlen(apath + fsm->astriplen));
(void) stpcpy( stpcpy(t, "."), apath + fsm->astriplen);
linkpath = t;
firstfile = 0;
} else
fsm->lpath = linkpath;
/* Write data after first link for tar. */
rc = writeFile(fsm, (fsm->lpath == NULL));
} else {
/* Write data after last link for cpio. */
rc = writeFile(fsm, (i == 0));
}
if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
ec = rc;
*fsm->failedFile = xstrdup(fsm->path);
}
fsm->path = _free(fsm->path);
fsm->li->filex[i] = -1;
}
/*@-dependenttrans@*/
linkpath = _free(linkpath);
/*@=dependenttrans@*/
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->lpath = lpath;
fsm->path = path;
return ec;
}
/*@-compdef@*/
static int fsmMakeLinks(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->path, fsm->opath, fsm->nsuffix, fsm->ix, fsm->li @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const char * path = fsm->path;
const char * opath = fsm->opath;
const char * nsuffix = fsm->nsuffix;
int iterIndex = fsm->ix;
int ec = 0;
int rc;
int i;
fsm->path = NULL;
fsm->opath = NULL;
fsm->nsuffix = NULL;
fsm->ix = -1;
fsm->ix = fsm->li->filex[fsm->li->createdPath];
rc = fsmNext(fsm, IOSM_MAP);
fsm->opath = fsm->path;
fsm->path = NULL;
for (i = 0; i < fsm->li->nlink; i++) {
if (fsm->li->filex[i] < 0) continue;
if (fsm->li->createdPath == i) continue;
fsm->ix = fsm->li->filex[i];
fsm->path = _free(fsm->path);
rc = fsmNext(fsm, IOSM_MAP);
if (iosmFileActionSkipped(fsm->action)) continue;
rc = fsmUNSAFE(fsm, IOSM_VERIFY);
if (!rc) continue;
if (!(rc == IOSMERR_ENOENT)) break;
/* XXX link(fsm->opath, fsm->path) */
rc = fsmNext(fsm, IOSM_LINK);
if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
ec = rc;
*fsm->failedFile = xstrdup(fsm->path);
}
fsm->li->linksLeft--;
}
fsm->path = _free(fsm->path);
fsm->opath = _free(fsm->opath);
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->path = path;
fsm->opath = opath;
return ec;
}
/*@=compdef@*/
/*@-compdef@*/
static int fsmCommitLinks(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->path, fsm->nsuffix, fsm->ix, fsm->sb,
fsm->li, fsm->links @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const char * path = fsm->path;
const char * nsuffix = fsm->nsuffix;
int iterIndex = fsm->ix;
struct stat * st = &fsm->sb;
int rc = 0;
int i;
fsm->path = NULL;
fsm->nsuffix = NULL;
fsm->ix = -1;
for (fsm->li = fsm->links; fsm->li; fsm->li = fsm->li->next) {
if (fsm->li->sb.st_ino == st->st_ino && fsm->li->sb.st_dev == st->st_dev)
break;
}
for (i = 0; i < fsm->li->nlink; i++) {
if (fsm->li->filex[i] < 0) continue;
fsm->ix = fsm->li->filex[i];
rc = fsmNext(fsm, IOSM_MAP);
if (!iosmFileActionSkipped(fsm->action))
rc = fsmNext(fsm, IOSM_COMMIT);
fsm->path = _free(fsm->path);
fsm->li->filex[i] = -1;
}
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->path = path;
return rc;
}
/*@=compdef@*/
static int fsmRmdirs(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->path, fsm->dnlx, fsm->ldn, fsm->rdbuf, fsm->iter @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
const char * path = fsm->path;
void * dnli = dnlInitIterator(fsm, 1);
char * dn = fsm->rdbuf;
int dc = dnlCount(dnli);
int rc = 0;
fsm->path = NULL;
dn[0] = '\0';
/*@-observertrans -dependenttrans@*/
if (fsm->ldn != NULL && fsm->dnlx != NULL)
while ((fsm->path = dnlNextIterator(dnli)) != NULL) {
size_t dnlen = strlen(fsm->path);
char * te;
dc = dnlIndex(dnli);
if (fsm->dnlx[dc] < 1 || (size_t)fsm->dnlx[dc] >= dnlen)
continue;
/* Copy to avoid const on fsm->path. */
te = stpcpy(dn, fsm->path) - 1;
fsm->path = dn;
/* Remove generated directories. */
/*@-usereleased@*/ /* LCL: te used after release? */
do {
if (*te == '/') {
*te = '\0';
/*@-compdef@*/
rc = fsmNext(fsm, IOSM_RMDIR);
/*@=compdef@*/
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
te--;
} while ((te - fsm->path) > fsm->dnlx[dc]);
/*@=usereleased@*/
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
fsm->path = path;
return rc;
}
static int fsmMkdirs(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@uses fsm->path, fsm->sb, fsm->osb, fsm->rdbuf, fsm->iter,
fsm->ldn, fsm->ldnlen, fsm->ldnalloc @*/
/*@defines fsm->dnlx, fsm->ldn @*/
/*@globals h_errno, fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
struct stat * st = &fsm->sb;
struct stat * ost = &fsm->osb;
const char * path = fsm->path;
mode_t st_mode = st->st_mode;
void * dnli = dnlInitIterator(fsm, 0);
char * dn = fsm->rdbuf;
int dc = dnlCount(dnli);
int rc = 0;
size_t i;
fsm->path = NULL;
dn[0] = '\0';
fsm->dnlx = (dc ? xcalloc(dc, sizeof(*fsm->dnlx)) : NULL);
/*@-observertrans -dependenttrans@*/
if (fsm->dnlx != NULL)
while ((fsm->path = dnlNextIterator(dnli)) != NULL) {
size_t dnlen = strlen(fsm->path);
char * te;
dc = dnlIndex(dnli);
if (dc < 0) continue;
fsm->dnlx[dc] = (unsigned short) dnlen;
if (dnlen <= 1)
continue;
/*@-compdef -nullpass@*/ /* FIX: fsm->ldn not defined ??? */
if (dnlen <= fsm->ldnlen && !strcmp(fsm->path, fsm->ldn))
continue;
/*@=compdef =nullpass@*/
/* Copy to avoid const on fsm->path. */
(void) stpcpy(dn, fsm->path);
fsm->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 < fsm->ldnlen &&
(fsm->ldn[i] == '/' || fsm->ldn[i] == '\0') &&
!strncmp(fsm->path, fsm->ldn, i))
{
*te = '/';
/* Move pre-existing path marker forward. */
fsm->dnlx[dc] = (te - dn);
/*@innercontinue@*/ continue;
}
/*@=usedef =compdef =nullpass =nullderef@*/
/* Validate next component of path. */
rc = fsmUNSAFE(fsm, IOSM_LSTAT);
*te = '/';
/* Directory already exists? */
if (rc == 0 && S_ISDIR(ost->st_mode)) {
/* Move pre-existing path marker forward. */
fsm->dnlx[dc] = (te - dn);
} else if (rc == IOSMERR_ENOENT) {
rpmfi fi = fsmGetFi(fsm);
*te = '\0';
st->st_mode = S_IFDIR | (fi->dperms & 07777);
rc = fsmNext(fsm, IOSM_MKDIR);
if (!rc) {
security_context_t scon = NULL;
/* XXX FIXME? only new dir will have context set. */
/* Get file security context from patterns. */
/*@-moduncon@*/
if (!fsm->nofcontexts
&& !matchpathcon(fsm->path, st->st_mode, &scon)
&& scon != NULL)
/*@=moduncon@*/
{
fsm->fcontext = scon;
rc = fsmNext(fsm, IOSM_LSETFCON);
} else
fsm->fcontext = NULL;
if (fsm->fcontext == NULL)
rpmlog(RPMLOG_DEBUG,
D_("%s directory created with perms %04o, no context.\n"),
fsm->path, (unsigned)(st->st_mode & 07777));
else {
rpmlog(RPMLOG_DEBUG,
D_("%s directory created with perms %04o, context %s.\n"),
fsm->path, (unsigned)(st->st_mode & 07777),
fsm->fcontext);
fsm->fcontext = NULL;
scon = _free(scon);
}
}
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
}
if (rc) break;
/* Save last validated path. */
/*@-compdef@*/ /* FIX: ldn/path annotations ? */
if (fsm->ldnalloc < (dnlen + 1)) {
fsm->ldnalloc = dnlen + 100;
fsm->ldn = xrealloc(fsm->ldn, fsm->ldnalloc);
}
if (fsm->ldn != NULL) { /* XXX can't happen */
strcpy(fsm->ldn, fsm->path);
fsm->ldnlen = dnlen;
}
/*@=compdef@*/
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
fsm->path = path;
st->st_mode = st_mode; /* XXX restore st->st_mode */
/*@-compdef@*/ /* FIX: ldn/path annotations ? */
return rc;
/*@=compdef@*/
}
#ifdef NOTYET
static int fsmStat(/*@special@*/ /*@partial@*/ IOSM_t fsm)
/*@globals fileSystem, internalState @*/
/*@modifies fsm, fileSystem, internalState @*/
{
int rc = 0;
if (fsm->path != NULL) {
int saveernno = errno;
rc = fsmUNSAFE(fsm, (!(fsm->mapFlags & IOSM_FOLLOW_SYMLINKS)
? IOSM_LSTAT : IOSM_STAT));
if (rc == IOSMERR_ENOENT) {
errno = saveerrno;
rc = 0;
fsm->exists = 0;
} else if (rc == 0) {
fsm->exists = 1;
}
} else {
/* Skip %ghost files on build. */
fsm->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 fsmStage(IOSM_t fsm, iosmFileStage stage)
{
#ifdef NOTUSED
iosmFileStage prevStage = fsm->stage;
const char * const prev = iosmFileStageString(prevStage);
#endif
const char * const cur = iosmFileStageString(stage);
struct stat * st = &fsm->sb;
struct stat * ost = &fsm->osb;
int saveerrno = errno;
int rc = fsm->rc;
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 (fsm->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,
(fsm->path ? fsm->path : ""),
_fafilter(fsm->action));
} else {
const char * apath = NULL;
if (fsm->path)
(void) urlPath(fsm->path, &apath);
fsm->stage = stage;
if (fsm->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 + fsm->astriplen : ""),
_fafilter(fsm->action));
}
#undef _fafilter
switch (stage) {
case IOSM_UNKNOWN:
break;
case IOSM_PKGINSTALL:
while (1) {
/* Clean fsm, free'ing memory. Read next archive header. */
rc = fsmUNSAFE(fsm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
fsm->postpone = 1;
(void) fsmNext(fsm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Extract file from archive. */
rc = fsmNext(fsm, IOSM_PROCESS);
if (rc) {
(void) fsmNext(fsm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Notify on success. */
(void) fsmNext(fsm, IOSM_NOTIFY);
rc = fsmNext(fsm, IOSM_FINI);
if (rc) {
/*@loopbreak@*/ break;
}
}
break;
case IOSM_PKGERASE:
case IOSM_PKGCOMMIT:
while (1) {
/* Clean fsm, free'ing memory. */
rc = fsmUNSAFE(fsm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Rename/erase next item. */
if (fsmNext(fsm, IOSM_FINI))
/*@loopbreak@*/ break;
}
break;
case IOSM_PKGBUILD:
while (1) {
rc = fsmUNSAFE(fsm, IOSM_INIT);
/* Exit on end-of-payload. */
if (rc == IOSMERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
fsm->postpone = 1;
(void) fsmNext(fsm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Copy file into archive. */
rc = fsmNext(fsm, IOSM_PROCESS);
if (rc) {
(void) fsmNext(fsm, IOSM_UNDO);
/*@loopbreak@*/ break;
}
/* Notify on success. */
(void) fsmNext(fsm, IOSM_NOTIFY);
if (fsmNext(fsm, IOSM_FINI))
/*@loopbreak@*/ break;
}
/* Flush partial sets of hard linked files. */
if (!(fsm->mapFlags & IOSM_ALL_HARDLINKS)) {
int nlink, j;
while ((fsm->li = fsm->links) != NULL) {
fsm->links = fsm->li->next;
fsm->li->next = NULL;
/* Re-calculate link count for archive header. */
for (j = -1, nlink = 0, i = 0; i < fsm->li->nlink; i++) {
if (fsm->li->filex[i] < 0)
/*@innercontinue@*/ continue;
nlink++;
if (j == -1) j = i;
}
/* XXX force the contents out as well. */
if (j != 0) {
fsm->li->filex[0] = fsm->li->filex[j];
fsm->li->filex[j] = -1;
}
fsm->li->sb.st_nlink = nlink;
fsm->sb = fsm->li->sb; /* structure assignment */
fsm->osb = fsm->sb; /* structure assignment */
if (!rc) rc = writeLinkedFile(fsm);
fsm->li = freeHardLink(fsm->li);
}
}
if (!rc)
rc = fsmNext(fsm, IOSM_TRAILER);
break;
case IOSM_CREATE:
fsm->path = _free(fsm->path);
fsm->lpath = _free(fsm->lpath);
fsm->opath = _free(fsm->opath);
fsm->dnlx = _free(fsm->dnlx);
fsm->ldn = _free(fsm->ldn);
fsm->ldnalloc = fsm->ldnlen = 0;
fsm->rdsize = fsm->wrsize = 0;
fsm->rdbuf = fsm->rdb = _free(fsm->rdb);
fsm->wrbuf = fsm->wrb = _free(fsm->wrb);
if (fsm->goal == IOSM_PKGINSTALL || fsm->goal == IOSM_PKGBUILD) {
fsm->rdsize = 16 * BUFSIZ;
fsm->rdbuf = fsm->rdb = xmalloc(fsm->rdsize);
fsm->wrsize = 16 * BUFSIZ;
fsm->wrbuf = fsm->wrb = xmalloc(fsm->wrsize);
}
fsm->mkdirsdone = 0;
fsm->ix = -1;
fsm->links = NULL;
fsm->li = NULL;
errno = 0; /* XXX get rid of EBADF */
/* Detect and create directories not explicitly in package. */
if (fsm->goal == IOSM_PKGINSTALL) {
/*@-compdef@*/
rc = fsmNext(fsm, IOSM_MKDIRS);
/*@=compdef@*/
if (!rc) fsm->mkdirsdone = 1;
}
break;
case IOSM_INIT:
fsm->path = _free(fsm->path);
fsm->lpath = _free(fsm->lpath);
fsm->postpone = 0;
fsm->diskchecked = fsm->exists = 0;
fsm->subdir = NULL;
fsm->suffix = (fsm->sufbuf[0] != '\0' ? fsm->sufbuf : NULL);
fsm->action = FA_UNKNOWN;
fsm->osuffix = NULL;
fsm->nsuffix = NULL;
if (fsm->goal == IOSM_PKGINSTALL) {
/* Read next header from payload, checking for end-of-payload. */
rc = fsmUNSAFE(fsm, IOSM_NEXT);
}
if (rc) break;
/* Identify mapping index. */
fsm->ix = ((fsm->goal == IOSM_PKGINSTALL)
? mapFind(fsm->iter, fsm->path) : mapNextIterator(fsm->iter));
if (!(fsmGetFi(fsm)->mapflags & IOSM_PAYLOAD_LIST)) {
/* Detect end-of-loop and/or mapping error. */
if (!(fsmGetFi(fsm)->mapflags & IOSM_PAYLOAD_EXTRACT)) {
if (fsm->ix < 0) {
if (fsm->goal == IOSM_PKGINSTALL) {
#if 0
rpmlog(RPMLOG_WARNING,
_("archive file %s was not found in header file list\n"),
fsm->path);
#endif
if (fsm->failedFile && *fsm->failedFile == NULL)
*fsm->failedFile = xstrdup(fsm->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 (fsm->goal != IOSM_PKGINSTALL) {
rpmfi fi = fsmGetFi(fsm);
st->st_mode = fi->fmodes[fsm->ix];
}
}
/* Generate file path. */
rc = fsmNext(fsm, IOSM_MAP);
if (rc) break;
/* Perform lstat/stat for disk file. */
#ifdef NOTYET
rc = fsmStat(fsm);
#else
if (fsm->path != NULL &&
!(fsm->goal == IOSM_PKGINSTALL && S_ISREG(st->st_mode)))
{
rc = fsmUNSAFE(fsm, (!(fsm->mapFlags & IOSM_FOLLOW_SYMLINKS)
? IOSM_LSTAT : IOSM_STAT));
if (rc == IOSMERR_ENOENT) {
errno = saveerrno;
rc = 0;
fsm->exists = 0;
} else if (rc == 0) {
fsm->exists = 1;
}
} else {
/* Skip %ghost files on build. */
fsm->exists = 0;
}
#endif
fsm->diskchecked = 1;
if (rc) break;
/* On non-install, the disk file stat is what's remapped. */
if (fsm->goal != IOSM_PKGINSTALL)
*st = *ost; /* structure assignment */
/* Remap file perms, owner, and group. */
rc = fsmMapAttrs(fsm);
if (rc) break;
fsm->postpone = iosmFileActionSkipped(fsm->action);
if (fsm->goal == IOSM_PKGINSTALL || fsm->goal == IOSM_PKGBUILD) {
/*@-evalorder@*/ /* FIX: saveHardLink can modify fsm */
if (S_ISREG(st->st_mode) && st->st_nlink > 1)
fsm->postpone = saveHardLink(fsm);
/*@=evalorder@*/
}
if (fsmGetFi(fsm)->mapflags & IOSM_PAYLOAD_LIST) fsm->postpone = 1;
break;
case IOSM_PRE:
break;
case IOSM_MAP:
rc = fsmMapPath(fsm);
break;
case IOSM_MKDIRS:
rc = fsmMkdirs(fsm);
break;
case IOSM_RMDIRS:
if (fsm->dnlx)
rc = fsmRmdirs(fsm);
break;
case IOSM_PROCESS:
if (fsm->postpone) {
if (fsm->goal == IOSM_PKGINSTALL) {
/* XXX Skip over file body, archive headers already done. */
if (S_ISREG(st->st_mode))
rc = fsmNext(fsm, IOSM_EAT);
}
break;
}
if (fsm->goal == IOSM_PKGBUILD) {
if (fsm->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 (!(fsm->mapFlags & IOSM_ALL_HARDLINKS)) break;
rc = writeLinkedFile(fsm);
if (rc) break; /* W2DO? */
for (li = fsm->links, prev = NULL; li; prev = li, li = li->next)
if (li == fsm->li)
/*@loopbreak@*/ break;
if (prev == NULL)
fsm->links = fsm->li->next;
else
prev->next = fsm->li->next;
fsm->li->next = NULL;
fsm->li = freeHardLink(fsm->li);
} else {
rc = writeFile(fsm, 1);
}
break;
}
if (fsm->goal != IOSM_PKGINSTALL)
break;
if (S_ISREG(st->st_mode) && fsm->lpath != NULL) {
const char * opath = fsm->opath;
char * t = xmalloc(strlen(fsm->lpath+1) + strlen(fsm->suffix) + 1);
(void) stpcpy(t, fsm->lpath+1);
fsm->opath = t;
/* XXX link(fsm->opath, fsm->path) */
rc = fsmNext(fsm, IOSM_LINK);
if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
*fsm->failedFile = xstrdup(fsm->path);
}
fsm->opath = _free(fsm->opath);
fsm->opath = opath;
break; /* XXX so that delayed hard links get skipped. */
}
if (S_ISREG(st->st_mode)) {
const char * path = fsm->path;
if (fsm->osuffix)
fsm->path = fsmFsPath(fsm, st, NULL, NULL);
rc = fsmUNSAFE(fsm, IOSM_VERIFY);
if (rc == 0 && fsm->osuffix) {
const char * opath = fsm->opath;
fsm->opath = fsm->path;
fsm->path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
rc = fsmNext(fsm, IOSM_RENAME);
if (!rc)
rpmlog(RPMLOG_WARNING,
_("%s saved as %s\n"),
(fsm->opath ? fsm->opath : ""),
(fsm->path ? fsm->path : ""));
fsm->path = _free(fsm->path);
fsm->opath = opath;
}
/*@-dependenttrans@*/
fsm->path = path;
/*@=dependenttrans@*/
if (!(rc == IOSMERR_ENOENT)) return rc;
rc = extractRegular(fsm);
} else if (S_ISDIR(st->st_mode)) {
mode_t st_mode = st->st_mode;
rc = fsmUNSAFE(fsm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT) {
st->st_mode &= ~07777; /* XXX abuse st->st_mode */
st->st_mode |= 00700;
rc = fsmNext(fsm, IOSM_MKDIR);
st->st_mode = st_mode; /* XXX restore st->st_mode */
}
} else if (S_ISLNK(st->st_mode)) {
assert(fsm->lpath != NULL);
/*@=dependenttrans@*/
rc = fsmUNSAFE(fsm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT)
rc = fsmNext(fsm, 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 = fsmUNSAFE(fsm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT) {
st->st_mode = 0000; /* XXX abuse st->st_mode */
rc = fsmNext(fsm, 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 = fsmUNSAFE(fsm, IOSM_VERIFY);
if (rc == IOSMERR_ENOENT)
rc = fsmNext(fsm, IOSM_MKNOD);
} else {
/* XXX Repackaged payloads may be missing files. */
if (fsm->repackaged)
break;
/* XXX Special case /dev/log, which shouldn't be packaged anyways */
if (!IS_DEV_LOG(fsm->path))
rc = IOSMERR_UNKNOWN_FILETYPE;
}
if (S_ISREG(st->st_mode) && st->st_nlink > 1) {
fsm->li->createdPath = fsm->li->linkIndex;
rc = fsmMakeLinks(fsm);
}
break;
case IOSM_POST:
break;
case IOSM_MKLINKS:
rc = fsmMakeLinks(fsm);
break;
case IOSM_NOTIFY: /* XXX move from fsm to psm -> tsm */
if (fsm->goal == IOSM_PKGINSTALL || fsm->goal == IOSM_PKGBUILD) {
rpmts ts = fsmGetTs(fsm);
rpmfi fi = fsmGetFi(fsm);
void * ptr;
rpmuint64_t archivePos = fdGetCpioPos(fsm->cfd);
if (archivePos > fi->archivePos) {
fi->archivePos = (unsigned long long) archivePos;
ptr = rpmtsNotify(ts, fi->te, RPMCALLBACK_INST_PROGRESS,
fi->archivePos, fi->archiveSize);
}
}
break;
case IOSM_UNDO:
if (fsm->postpone)
break;
if (fsm->goal == IOSM_PKGINSTALL) {
/* XXX only erase if temp fn w suffix is in use */
if (fsm->sufbuf[0] != '\0')
(void) fsmNext(fsm,
(S_ISDIR(st->st_mode) ? IOSM_RMDIR : IOSM_UNLINK));
#ifdef NOTYET /* XXX remove only dirs just created, not all. */
if (fsm->dnlx)
(void) fsmNext(fsm, IOSM_RMDIRS);
#endif
errno = saveerrno;
}
if (fsm->failedFile && *fsm->failedFile == NULL)
*fsm->failedFile = xstrdup(fsm->path);
break;
case IOSM_FINI:
if (!fsm->postpone && fsm->commit) {
if (fsm->goal == IOSM_PKGINSTALL)
rc = ((S_ISREG(st->st_mode) && st->st_nlink > 1)
? fsmCommitLinks(fsm) : fsmNext(fsm, IOSM_COMMIT));
if (fsm->goal == IOSM_PKGCOMMIT)
rc = fsmNext(fsm, IOSM_COMMIT);
if (fsm->goal == IOSM_PKGERASE)
rc = fsmNext(fsm, IOSM_COMMIT);
}
fsm->path = _free(fsm->path);
fsm->lpath = _free(fsm->lpath);
fsm->opath = _free(fsm->opath);
memset(st, 0, sizeof(*st));
memset(ost, 0, sizeof(*ost));
break;
case IOSM_COMMIT:
/* Rename pre-existing modified or unmanaged file. */
if (fsm->osuffix && fsm->diskchecked &&
(fsm->exists || (fsm->goal == IOSM_PKGINSTALL && S_ISREG(st->st_mode))))
{
const char * opath = fsm->opath;
const char * path = fsm->path;
fsm->opath = fsmFsPath(fsm, st, NULL, NULL);
fsm->path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
rc = fsmNext(fsm, IOSM_RENAME);
if (!rc) {
rpmlog(RPMLOG_WARNING, _("%s saved as %s\n"),
(fsm->opath ? fsm->opath : ""),
(fsm->path ? fsm->path : ""));
}
fsm->path = _free(fsm->path);
fsm->path = path;
fsm->opath = _free(fsm->opath);
fsm->opath = opath;
}
/* Remove erased files. */
if (fsm->goal == IOSM_PKGERASE) {
if (fsm->action == FA_ERASE) {
rpmfi fi = fsmGetFi(fsm);
if (S_ISDIR(st->st_mode)) {
rc = fsmNext(fsm, 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 (fsm->fflags & RPMFILE_MISSINGOK)
/*@innerbreak@*/ break;
/* XXX common error message. */
rpmlog(
(fsm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_("%s rmdir of %s failed: Directory not empty\n"),
rpmfiTypeString(fi), fsm->path);
/*@innerbreak@*/ break;
default:
rpmlog(
(fsm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_("%s rmdir of %s failed: %s\n"),
rpmfiTypeString(fi), fsm->path, strerror(errno));
/*@innerbreak@*/ break;
}
} else {
rc = fsmNext(fsm, IOSM_UNLINK);
if (!rc) break;
switch (rc) {
case IOSMERR_ENOENT:
if (fsm->fflags & RPMFILE_MISSINGOK)
/*@innerbreak@*/ break;
/*@fallthrough@*/
default:
rpmlog(
(fsm->strict_erasures ? RPMLOG_ERR : RPMLOG_DEBUG),
_(" %s: unlink of %s failed: %s\n"),
rpmfiTypeString(fi), fsm->path, strerror(errno));
/*@innerbreak@*/ break;
}
}
}
/* XXX Failure to remove is not (yet) cause for failure. */
if (!fsm->strict_erasures) rc = 0;
break;
}
/* XXX Special case /dev/log, which shouldn't be packaged anyways */
if (!(fsmGetFi(fsm)->mapflags & IOSM_PAYLOAD_EXTRACT)) {
if (!S_ISSOCK(st->st_mode) && !IS_DEV_LOG(fsm->path)) {
/* Rename temporary to final file name. */
if (!S_ISDIR(st->st_mode) &&
(fsm->subdir || fsm->suffix || fsm->nsuffix))
{
fsm->opath = fsm->path;
fsm->path = fsmFsPath(fsm, st, NULL, fsm->nsuffix);
rc = fsmNext(fsm, IOSM_RENAME);
if (rc)
(void) Unlink(fsm->opath);
else if (fsm->nsuffix) {
const char * opath = fsmFsPath(fsm, st, NULL, NULL);
rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),
(opath ? opath : ""),
(fsm->path ? fsm->path : ""));
opath = _free(opath);
}
fsm->opath = _free(fsm->opath);
}
/*
* Set file security context (if not disabled).
*/
if (!rc && !getuid()) {
rc = fsmMapFContext(fsm);
if (!rc)
rc = fsmNext(fsm, IOSM_LSETFCON);
fsm->fcontext = NULL;
}
if (S_ISLNK(st->st_mode)) {
if (!rc && !getuid())
rc = fsmNext(fsm, IOSM_LCHOWN);
} else {
if (!rc && !getuid())
rc = fsmNext(fsm, IOSM_CHOWN);
if (!rc)
rc = fsmNext(fsm, IOSM_CHMOD);
if (!rc) {
time_t mtime = st->st_mtime;
rpmfi fi = fsmGetFi(fsm);
if (fi->fmtimes)
st->st_mtime = fi->fmtimes[fsm->ix];
rc = fsmNext(fsm, IOSM_UTIME);
st->st_mtime = mtime;
}
}
}
}
/* Notify on success. */
if (!rc) rc = fsmNext(fsm, IOSM_NOTIFY);
else if (fsm->failedFile && *fsm->failedFile == NULL) {
*fsm->failedFile = fsm->path;
fsm->path = NULL;
}
break;
case IOSM_DESTROY:
fsm->path = _free(fsm->path);
/* Check for hard links missing from payload. */
while ((fsm->li = fsm->links) != NULL) {
fsm->links = fsm->li->next;
fsm->li->next = NULL;
if (fsm->goal == IOSM_PKGINSTALL &&
fsm->commit && fsm->li->linksLeft)
{
for (i = 0 ; i < fsm->li->linksLeft; i++) {
if (fsm->li->filex[i] < 0)
/*@innercontinue@*/ continue;
rc = IOSMERR_MISSING_HARDLINK;
if (fsm->failedFile && *fsm->failedFile == NULL) {
fsm->ix = fsm->li->filex[i];
if (!fsmNext(fsm, IOSM_MAP)) {
*fsm->failedFile = fsm->path;
fsm->path = NULL;
}
}
/*@loopbreak@*/ break;
}
}
if (fsm->goal == IOSM_PKGBUILD &&
(fsm->mapFlags & IOSM_ALL_HARDLINKS))
{
rc = IOSMERR_MISSING_HARDLINK;
}
fsm->li = freeHardLink(fsm->li);
}
fsm->ldn = _free(fsm->ldn);
fsm->ldnalloc = fsm->ldnlen = 0;
fsm->rdbuf = fsm->rdb = _free(fsm->rdb);
fsm->wrbuf = fsm->wrb = _free(fsm->wrb);
break;
case IOSM_VERIFY:
if (fsm->diskchecked && !fsm->exists) {
rc = IOSMERR_ENOENT;
break;
}
if (S_ISREG(st->st_mode)) {
char * path = alloca(strlen(fsm->path) + sizeof("-RPMDELETE"));
(void) stpcpy( stpcpy(path, fsm->path), "-RPMDELETE");
/*
* XXX HP-UX (and other os'es) don't permit unlink on busy
* XXX files.
*/
fsm->opath = fsm->path;
fsm->path = path;
rc = fsmNext(fsm, IOSM_RENAME);
if (!rc)
(void) fsmNext(fsm, IOSM_UNLINK);
else
rc = IOSMERR_UNLINK_FAILED;
fsm->path = fsm->opath;
fsm->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 = fsmUNSAFE(fsm, 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 fsm->rdbuf, len in fsm->rdnb. */
rc = fsmUNSAFE(fsm, IOSM_READLINK);
errno = saveerrno;
if (rc) break;
if (!strcmp(fsm->lpath, fsm->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 (fsm->stage == IOSM_PROCESS) rc = fsmNext(fsm, IOSM_UNLINK);
if (rc == 0) rc = IOSMERR_ENOENT;
return (rc ? rc : IOSMERR_ENOENT); /* XXX HACK */
/*@notreached@*/ break;
case IOSM_UNLINK:
case IOSM_RENAME:
case IOSM_MKDIR:
case IOSM_RMDIR:
case IOSM_LSETFCON:
case IOSM_CHOWN:
case IOSM_LCHOWN:
case IOSM_CHMOD:
case IOSM_UTIME:
case IOSM_SYMLINK:
case IOSM_LINK:
case IOSM_MKFIFO:
case IOSM_MKNOD:
case IOSM_LSTAT:
case IOSM_STAT:
case IOSM_READLINK:
case IOSM_CHROOT:
rc = iosmStage(fsm, stage);
break;
case IOSM_NEXT:
case IOSM_EAT:
case IOSM_POS:
case IOSM_PAD:
case IOSM_TRAILER:
case IOSM_HREAD:
case IOSM_HWRITE:
case IOSM_DREAD:
case IOSM_DWRITE:
rc = iosmStage(fsm, stage);
break;
case IOSM_ROPEN:
case IOSM_READ:
case IOSM_RCLOSE:
rc = iosmStage(fsm, stage);
break;
case IOSM_WOPEN:
case IOSM_WRITE:
case IOSM_WCLOSE:
rc = iosmStage(fsm, stage);
break;
default:
break;
}
if (!(stage & IOSM_INTERNAL)) {
fsm->rc = (rc == IOSMERR_HDR_TRAILER ? 0 : rc);
}
return rc;
}
/*@=compmempass@*/