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rpm/lib/fsm.c

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/** \ingroup payload
* \file lib/fsm.c
* File state machine to handle a payload from a package.
*/
#include "system.h"
#include "psm.h"
#include "rpmerr.h"
#include "debug.h"
/*@access FD_t @*/
/*@access rpmTransactionSet @*/
/*@access TFI_t @*/
/*@access FSMI_t @*/
/*@access FSM_t @*/
#define alloca_strdup(_s) strcpy(alloca(strlen(_s)+1), (_s))
int _fsm_debug = 0;
/* XXX Failure to remove is not (yet) cause for failure. */
/*@-exportlocal -exportheadervar@*/
int strict_erasures = 0;
/*@=exportlocal =exportheadervar@*/
rpmTransactionSet fsmGetTs(const FSM_t fsm) {
const FSMI_t iter = fsm->iter;
/*@-retexpose@*/
return (iter ? iter->ts : NULL);
/*@=retexpose@*/
}
TFI_t fsmGetFi(const FSM_t fsm)
{
const FSMI_t iter = fsm->iter;
/*@-retexpose@*/
return (iter ? iter->fi : NULL);
/*@=retexpose@*/
}
#define SUFFIX_RPMORIG ".rpmorig"
#define SUFFIX_RPMSAVE ".rpmsave"
#define SUFFIX_RPMNEW ".rpmnew"
/** \ingroup payload
* Build path to file from file info, ornamented with subdir and suffix.
* @param fsm file state machine data
* @param st file stat info
* @param subdir subdir to use (NULL disables)
* @param suffix suffix to use (NULL disables)
* @retval path to file
*/
static /*@only@*//*@null@*/
const char * fsmFsPath(/*@special@*/ /*@null@*/ const FSM_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) {
int nb;
char * t;
/*@-nullpass@*/ /* LCL: subdir/suffix != NULL */
nb = strlen(fsm->dirName) +
(st && subdir && !S_ISDIR(st->st_mode) ? strlen(subdir) : 0) +
(st && suffix && !S_ISDIR(st->st_mode) ? strlen(suffix) : 0) +
strlen(fsm->baseName) + 1;
s = t = xmalloc(nb);
t = stpcpy(t, fsm->dirName);
if (st && subdir && !S_ISDIR(st->st_mode))
t = stpcpy(t, subdir);
t = stpcpy(t, fsm->baseName);
if (st && suffix && !S_ISDIR(st->st_mode))
t = stpcpy(t, suffix);
/*@=nullpass@*/
}
return s;
}
/** \ingroup payload
* Destroy file info iterator.
* @param p file info iterator
* @retval NULL always
*/
static /*@null@*/ void * mapFreeIterator(/*@only@*//*@null@*/const void * p)
{
return _free((void *)p);
}
/** \ingroup payload
* Create file info iterator.
* @param a transaction set
* @param b transaction element file info
* @return file info iterator
*/
static void *
mapInitIterator(/*@kept@*/ const void * a, /*@kept@*/ const void * b)
{
rpmTransactionSet ts = (void *)a;
TFI_t fi = (void *)b;
FSMI_t iter = NULL;
iter = xcalloc(1, sizeof(*iter));
/*@-assignexpose@*/
iter->ts = ts;
iter->fi = fi;
/*@=assignexpose@*/
iter->reverse = (fi->type == TR_REMOVED && fi->action != FA_COPYOUT);
iter->i = (iter->reverse ? (fi->fc - 1) : 0);
iter->isave = iter->i;
return iter;
}
/** \ingroup payload
* Return next index into file info.
* @param a file info iterator
* @return next index, -1 on termination
*/
static int mapNextIterator(void * a) {
FSMI_t iter = a;
const TFI_t fi = iter->fi;
int i = -1;
if (iter->reverse) {
if (iter->i >= 0) i = iter->i--;
} else {
if (iter->i < fi->fc) i = iter->i++;
}
iter->isave = i;
return i;
}
/** \ingroup payload
*/
static int cpioStrCmp(const void * a, const void * b)
/*@*/
{
const char * afn = *(const char **)a;
const char * bfn = *(const char **)b;
/* 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. */
if (afn[0] == '/') afn += 1;
if (bfn[0] == '/') bfn += 1;
return strcmp(afn, bfn);
}
/** \ingroup payload
* Locate archive path in file info.
* @param a file info iterator
* @param fsmPath archive path
* @return index into file info, -1 if archive path was not found
*/
static int mapFind(void * a, const char * fsmPath)
/*@*/
{
FSMI_t iter = a;
const TFI_t fi = iter->fi;
int ix = -1;
if (fi && fi->fc > 0 && fi->apath && fsmPath && *fsmPath) {
const char ** p = NULL;
if (fi->apath != NULL)
p = bsearch(&fsmPath, fi->apath, fi->fc, sizeof(fsmPath),
cpioStrCmp);
if (p == NULL) {
fprintf(stderr, "*** not mapped %s\n", fsmPath);
} else {
iter->i = p - fi->apath;
ix = mapNextIterator(iter);
}
}
return ix;
}
/** \ingroup payload
* Directory name iterator.
*/
typedef struct dnli_s {
/*@dependent@*/ TFI_t fi;
/*@only@*/ /*@null@*/ char * active;
int reverse;
int isave;
int i;
} * DNLI_t;
/** \ingroup payload
* Destroy directory name iterator.
* @param a directory name iterator
* @retval NULL always
*/
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);
}
/** \ingroup payload
*/
static inline int dnlCount(const DNLI_t dnli)
/*@*/
{
return (dnli ? dnli->fi->dc : 0);
}
/** \ingroup payload
*/
static inline int dnlIndex(const DNLI_t dnli)
/*@*/
{
return (dnli ? dnli->isave : -1);
}
/** \ingroup payload
* Create directory name iterator.
* @param fsm file state machine data
* @param reverse traverse directory names in reverse order?
* @return directory name iterator
*/
static /*@only@*/ void * dnlInitIterator(/*@special@*/ const FSM_t fsm,
int reverse)
/*@uses fsm->iter @*/
/*@*/
{
TFI_t fi = fsmGetFi(fsm);
DNLI_t dnli;
int i, j;
if (fi == NULL)
return NULL;
dnli = xcalloc(1, sizeof(*dnli));
dnli->fi = fi;
dnli->reverse = reverse;
dnli->i = (reverse ? fi->dc : 0);
if (fi->dc) {
dnli->active = xcalloc(fi->dc, sizeof(*dnli->active));
/* Identify parent directories not skipped. */
for (i = 0; i < fi->fc; i++)
if (!XFA_SKIPPING(fi->actions[i])) dnli->active[fi->dil[i]] = 1;
/* Exclude parent directories that are explicitly included. */
for (i = 0; i < fi->fc; i++) {
int dil, 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 < fi->dc; j++) {
const char * dnl;
int jlen;
if (!dnli->active[j] || j == dil) continue;
dnl = fi->dnl[j];
jlen = strlen(dnl);
if (jlen != (dnlen+bnlen+1)) continue;
if (strncmp(dnl, fi->dnl[dil], dnlen)) continue;
if (strncmp(dnl+dnlen, fi->bnl[i], bnlen)) continue;
if (dnl[dnlen+bnlen] != '/' || dnl[dnlen+bnlen+1] != '\0')
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 < fi->dc; i++) {
if (!dnli->active[i]) continue;
if (j == 0) {
j = 1;
rpmMessage(RPMMESS_DEBUG,
_("========= Directories not explictly included in package:\n"));
}
rpmMessage(RPMMESS_DEBUG, _("%9d %s\n"), i, fi->dnl[i]);
}
if (j)
rpmMessage(RPMMESS_DEBUG, "=========\n");
}
}
return dnli;
}
/** \ingroup payload
* Return next directory name (from file info).
* @param dnli directory name iterator
* @return next directory name
*/
static /*@observer@*/ const char * dnlNextIterator(/*@null@*/ DNLI_t dnli)
/*@modifies dnli @*/
{
const char * dn = NULL;
if (dnli) {
TFI_t fi = dnli->fi;
int i = -1;
if (dnli->active)
do {
i = (!dnli->reverse ? dnli->i++ : --dnli->i);
} while (i >= 0 && i < fi->dc && !dnli->active[i]);
if (i >= 0 && i < fi->dc)
dn = fi->dnl[i];
else
i = -1;
dnli->isave = i;
}
return dn;
}
/** \ingroup payload
* Save hard link in chain.
* @param fsm file state machine data
* @return Is chain only partially filled?
*/
/*@-compmempass@*/
static int saveHardLink(/*@special@*/ /*@partial@*/ FSM_t fsm)
/*@uses fsm->links, fsm->ix, fsm->sb, fsm->goal, fsm->nsuffix @*/
/*@defines fsm->li @*/
/*@releases fsm->path @*/
/*@modifies fsm @*/
{
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->inode == st->st_ino && fsm->li->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->nlink = st->st_nlink;
fsm->li->dev = st->st_dev;
fsm->li->inode = st->st_ino;
fsm->li->linkIndex = -1;
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 == FSM_PKGBUILD)
fsm->li->linksLeft = st->st_nlink;
if (fsm->goal == FSM_PKGINSTALL)
fsm->li->linksLeft = 0;
/*@-kepttrans@*/
fsm->li->next = fsm->links;
/*@=kepttrans@*/
fsm->links = fsm->li;
}
if (fsm->goal == FSM_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 == FSM_PKGINSTALL) fsm->li->linksLeft++;
#if 0
fprintf(stderr, "*** %p link[%d:%d] %d filex %d %s\n", fsm->li, fsm->li->linksLeft, st->st_nlink, (int)st->st_size, fsm->li->filex[fsm->li->linksLeft], fsm->li->files[fsm->li->linksLeft]);
#endif
if (fsm->goal == FSM_PKGBUILD)
return (fsm->li->linksLeft > 0);
if (fsm->goal != FSM_PKGINSTALL)
return 0;
if (!(st->st_size || fsm->li->linksLeft == st->st_nlink))
return 1;
/* Here come the bits, time to choose a non-skipped file name. */
{ TFI_t fi = fsmGetFi(fsm);
for (j = fsm->li->linksLeft - 1; j >= 0; j--) {
ix = fsm->li->filex[j];
if (ix < 0 || XFA_SKIPPING(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 = fsmStage(fsm, FSM_MAP);
/*@-nullstate@*/ /* FIX: fsm->path null annotation? */
return rc;
/*@=nullstate@*/
}
/*@=compmempass@*/
/** \ingroup payload
* Destroy set of hard links.
* @param li set of hard links
*/
static /*@null@*/ void * freeHardLink(/*@only@*/ /*@null@*/ struct hardLink * li)
/*@modifies li @*/
{
if (li) {
li->nsuffix = _free(li->nsuffix); /* XXX elements are shared */
li->filex = _free(li->filex);
}
return _free(li);
}
FSM_t newFSM(void)
{
FSM_t fsm = xcalloc(1, sizeof(*fsm));
return fsm;
}
FSM_t freeFSM(FSM_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);
}
int fsmSetup(FSM_t fsm, fileStage goal,
const rpmTransactionSet ts, const TFI_t fi, FD_t cfd,
unsigned int * archiveSize, const char ** failedFile)
{
size_t pos = 0;
int rc;
fsm->goal = goal;
if (cfd) {
fsm->cfd = fdLink(cfd, "persist (fsm)");
pos = fdGetCpioPos(fsm->cfd);
fdSetCpioPos(fsm->cfd, 0);
}
fsm->iter = mapInitIterator(ts, fi);
if (fsm->goal == FSM_PKGINSTALL) {
if (ts && ts->notify) {
(void)ts->notify(fi->h, RPMCALLBACK_INST_START, 0, fi->archiveSize,
(fi->ap ? fi->ap->key : NULL), ts->notifyData);
}
}
/*@-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 == FSM_PKGINSTALL) {
if (ts && ts->id > 0)
sprintf(fsm->sufbuf, ";%08x", (unsigned)ts->id);
}
rc = fsm->rc = 0;
rc = fsmStage(fsm, FSM_CREATE);
rc = fsmStage(fsm, fsm->goal);
if (fsm->archiveSize && rc == 0)
*fsm->archiveSize = (fdGetCpioPos(fsm->cfd) - pos);
return rc;
}
int fsmTeardown(FSM_t fsm) {
int rc = fsm->rc;
if (!rc)
rc = fsmStage(fsm, FSM_DESTROY);
fsm->iter = mapFreeIterator(fsm->iter);
if (fsm->cfd) {
fsm->cfd = fdFree(fsm->cfd, "persist (fsm)");
fsm->cfd = NULL;
}
fsm->failedFile = NULL;
/*@-nullstate@*/ /* FIX: fsm->iter null annotation? */
return rc;
/*@=nullstate@*/
}
int fsmMapPath(FSM_t fsm)
{
TFI_t fi = fsmGetFi(fsm); /* XXX const except for fstates */
int rc = 0;
int i;
fsm->osuffix = NULL;
fsm->nsuffix = NULL;
fsm->astriplen = 0;
fsm->action = FA_UNKNOWN;
fsm->mapFlags = 0;
i = fsm->ix;
if (fi && i >= 0 && i < 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_SKIPMULTILIB: /* XXX RPMFILE_STATE_MULTILIB? */
fprintf(stderr, "*** %s:%s %s\n", fiTypeString(fi), fileActionString(fsm->action), (fsm->path ? fsm->path : ""));
break;
case FA_UNKNOWN:
fprintf(stderr, "*** %s:%s %s\n", fiTypeString(fi), fileActionString(fsm->action), (fsm->path ? fsm->path : ""));
break;
case FA_COPYOUT:
break;
case FA_COPYIN:
case FA_CREATE:
assert(fi->type == TR_ADDED);
break;
case FA_SKIPNSTATE:
if (fi->fstates && fi->type == TR_ADDED)
fi->fstates[i] = RPMFILE_STATE_NOTINSTALLED;
break;
case FA_SKIPNETSHARED:
if (fi->fstates && fi->type == TR_ADDED)
fi->fstates[i] = RPMFILE_STATE_NETSHARED;
break;
case FA_BACKUP:
switch (fi->type) {
case TR_ADDED:
fsm->osuffix = SUFFIX_RPMORIG;
break;
case TR_REMOVED:
fsm->osuffix = SUFFIX_RPMSAVE;
break;
}
break;
case FA_ALTNAME:
assert(fi->type == TR_ADDED);
fsm->nsuffix = SUFFIX_RPMNEW;
break;
case FA_SAVE:
assert(fi->type == TR_ADDED);
fsm->osuffix = SUFFIX_RPMSAVE;
break;
case FA_ERASE:
assert(fi->type == TR_REMOVED);
break;
default:
fprintf(stderr, "*** %s:%s %s\n", fiTypeString(fi), fileActionString(fsm->action), (fsm->path ? fsm->path : ""));
break;
}
if ((fsm->mapFlags & CPIO_MAP_PATH) || fsm->nsuffix) {
const struct stat * st = &fsm->sb;
fsm->path = _free(fsm->path);
/*@-nullstate@*/ /* FIX: fsm->path null annotation? */
fsm->path = fsmFsPath(fsm, st, fsm->subdir,
(fsm->suffix ? fsm->suffix : fsm->nsuffix));
/*@=nullstate@*/
}
}
return rc;
}
int fsmMapAttrs(FSM_t fsm)
{
struct stat * st = &fsm->sb;
TFI_t fi = fsmGetFi(fsm);
int i = fsm->ix;
if (fi && i >= 0 && i < fi->fc) {
mode_t perms =
(S_ISDIR(st->st_mode) ? fi->dperms : fi->fperms);
mode_t finalMode =
(fi->fmodes ? fi->fmodes[i] : perms);
uid_t finalUid =
(fi->fuids ? fi->fuids[i] : fi->uid); /* XXX chmod u-s */
gid_t finalGid =
(fi->fgids ? fi->fgids[i] : fi->gid); /* XXX chmod g-s */
if (fsm->mapFlags & CPIO_MAP_MODE)
st->st_mode = (st->st_mode & S_IFMT) | finalMode;
if (fsm->mapFlags & CPIO_MAP_UID)
st->st_uid = finalUid;
if (fsm->mapFlags & CPIO_MAP_GID)
st->st_gid = finalGid;
fsm->fmd5sum = (fi->fmd5s ? fi->fmd5s[i] : NULL);
}
return 0;
}
/** \ingroup payload
* Create file from payload stream.
* @todo Legacy: support brokenEndian MD5 checks?
* @param fsm file state machine data
* @return 0 on success
*/
static int expandRegular(/*@special@*/ FSM_t fsm)
/*@uses fsm->sb @*/
/*@modifies fsm, fileSystem @*/
{
const char * fmd5sum;
const struct stat * st = &fsm->sb;
int left = st->st_size;
int rc = 0;
rc = fsmStage(fsm, FSM_WOPEN);
if (rc)
goto exit;
/* XXX md5sum's will break on repackaging that includes modified files. */
fmd5sum = fsm->fmd5sum;
/* XXX This doesn't support brokenEndian checks. */
if (st->st_size > 0 && fmd5sum)
fdInitMD5(fsm->wfd, 0);
while (left) {
fsm->wrlen = (left > fsm->wrsize ? fsm->wrsize : left);
rc = fsmStage(fsm, FSM_DREAD);
if (rc)
goto exit;
rc = fsmStage(fsm, FSM_WRITE);
if (rc)
goto exit;
left -= fsm->wrnb;
/* don't call this with fileSize == fileComplete */
if (!rc && left)
(void) fsmStage(fsm, FSM_NOTIFY);
}
if (st->st_size > 0 && fmd5sum) {
const char * md5sum = NULL;
(void) Fflush(fsm->wfd);
fdFiniMD5(fsm->wfd, (void **)&md5sum, NULL, 1);
if (md5sum == NULL) {
rc = CPIOERR_MD5SUM_MISMATCH;
} else {
if (strcmp(md5sum, fmd5sum))
rc = CPIOERR_MD5SUM_MISMATCH;
md5sum = _free(md5sum);
}
}
exit:
(void) fsmStage(fsm, FSM_WCLOSE);
return rc;
}
/** \ingroup payload
* Write next item to payload stream.
* @param fsm file state machine data
* @param writeData should data be written?
* @return 0 on success
*/
static int writeFile(/*@special@*/ FSM_t fsm, int writeData)
/*@uses fsm->path, fsm->opath, fsm->sb, fsm->osb, fsm->cfd @*/
/*@modifies fsm, fileSystem @*/
{
const char * path = fsm->path;
const char * opath = fsm->opath;
struct stat * st = &fsm->sb;
struct stat * ost = &fsm->osb;
size_t pos = fdGetCpioPos(fsm->cfd);
char * symbuf = NULL;
int left;
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 = fsmStage(fsm, FSM_READLINK);
if (rc) goto exit;
st->st_size = fsm->rdnb;
symbuf = alloca_strdup(fsm->rdbuf); /* XXX save readlink return. */
}
if (fsm->mapFlags & CPIO_MAP_ABSOLUTE) {
int nb = strlen(fsm->dirName) + strlen(fsm->baseName) + sizeof(".");
char * t = alloca(nb);
*t = '\0';
fsm->path = t;
if (fsm->mapFlags & CPIO_MAP_ADDDOT)
*t++ = '.';
t = stpcpy( stpcpy(t, fsm->dirName), fsm->baseName);
} else if (fsm->mapFlags & CPIO_MAP_PATH) {
TFI_t fi = fsmGetFi(fsm);
fsm->path =
(fi->apath ? fi->apath[fsm->ix] + fi->striplen : fi->bnl[fsm->ix]);
}
rc = fsmStage(fsm, FSM_HWRITE);
fsm->path = path;
if (rc) goto exit;
if (writeData && S_ISREG(st->st_mode)) {
#if HAVE_MMAP
char * rdbuf = NULL;
void * mapped = (void *)-1;
size_t nmapped;
#endif
rc = fsmStage(fsm, FSM_ROPEN);
if (rc) goto exit;
/* XXX unbuffered mmap generates *lots* of fdio debugging */
#if HAVE_MMAP
nmapped = 0;
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;
}
#endif
left = st->st_size;
while (left) {
#if HAVE_MMAP
if (mapped != (void *)-1) {
fsm->rdnb = nmapped;
} else
#endif
{
fsm->rdlen = (left > fsm->rdsize ? fsm->rdsize : left),
rc = fsmStage(fsm, FSM_READ);
if (rc) goto exit;
}
/* XXX DWRITE uses rdnb for I/O length. */
rc = fsmStage(fsm, FSM_DWRITE);
if (rc) goto exit;
left -= fsm->wrnb;
}
#if HAVE_MMAP
if (mapped != (void *)-1) {
/*@-noeffect@*/ (void) munmap(mapped, nmapped) /*@=noeffect@*/;
fsm->rdbuf = rdbuf;
}
#endif
} else if (writeData && S_ISLNK(st->st_mode)) {
/* XXX DWRITE uses rdnb for I/O length. */
strcpy(fsm->rdbuf, symbuf); /* XXX restore readlink buffer. */
fsm->rdnb = strlen(symbuf);
rc = fsmStage(fsm, FSM_DWRITE);
if (rc) goto exit;
}
rc = fsmStage(fsm, FSM_PAD);
if (rc) goto exit;
{ const rpmTransactionSet ts = fsmGetTs(fsm);
TFI_t fi = fsmGetFi(fsm);
if (ts && fi && ts->notify) {
size_t size = (fdGetCpioPos(fsm->cfd) - pos);
/*@-modunconnomods@*/
(void)ts->notify(fi->h, RPMCALLBACK_INST_PROGRESS, size, size,
(fi->ap ? fi->ap->key : NULL), ts->notifyData);
/*@=modunconnomods@*/
}
}
rc = 0;
exit:
if (fsm->rfd)
(void) fsmStage(fsm, FSM_RCLOSE);
/*@-dependenttrans@*/
fsm->opath = opath;
fsm->path = path;
/*@=dependenttrans@*/
return rc;
}
/** \ingroup payload
* Write set of linked files to payload stream.
* @param fsm file state machine data
* @return 0 on success
*/
static int writeLinkedFile(/*@special@*/ FSM_t fsm)
/*@uses fsm->path, fsm->nsuffix, fsm->ix, fsm->li, fsm->failedFile @*/
/*@modifies fsm, fileSystem @*/
{
const char * path = fsm->path;
const char * nsuffix = fsm->nsuffix;
int iterIndex = fsm->ix;
int ec = 0;
int rc;
int i;
fsm->path = 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];
rc = fsmStage(fsm, FSM_MAP);
/* Write data after last link. */
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;
}
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->path = path;
return ec;
}
/** \ingroup payload
* Create pending hard links to existing file.
* @param fsm file state machine data
* @return 0 on success
*/
static int fsmMakeLinks(/*@special@*/ FSM_t fsm)
/*@uses fsm->path, fsm->opath, fsm->nsuffix, fsm->ix, fsm->li @*/
/*@modifies fsm, fileSystem @*/
{
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 = fsmStage(fsm, FSM_MAP);
fsm->opath = fsm->path;
fsm->path = NULL;
for (i = 0; i < fsm->li->nlink; i++) {
if (fsm->li->filex[i] < 0) continue;
if (i == fsm->li->createdPath) continue;
fsm->ix = fsm->li->filex[i];
rc = fsmStage(fsm, FSM_MAP);
rc = fsmStage(fsm, FSM_VERIFY);
if (!rc) continue;
if (rc != CPIOERR_LSTAT_FAILED) break;
/* XXX link(fsm->opath, fsm->path) */
rc = fsmStage(fsm, FSM_LINK);
if (fsm->failedFile && rc != 0 && *fsm->failedFile == NULL) {
ec = rc;
*fsm->failedFile = xstrdup(fsm->path);
}
fsm->li->linksLeft--;
}
fsm->opath = _free(fsm->opath);
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->path = path;
fsm->opath = opath;
return ec;
}
/** \ingroup payload
* Commit hard linked file set atomically.
* @param fsm file state machine data
* @return 0 on success
*/
static int fsmCommitLinks(/*@special@*/ FSM_t fsm)
/*@uses fsm->path, fsm->nsuffix, fsm->ix, fsm->sb,
fsm->li, fsm->links @*/
/*@modifies fsm, fileSystem @*/
{
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->inode == st->st_ino && fsm->li->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 = fsmStage(fsm, FSM_MAP);
rc = fsmStage(fsm, FSM_COMMIT);
fsm->path = _free(fsm->path);
fsm->li->filex[i] = -1;
}
fsm->ix = iterIndex;
fsm->nsuffix = nsuffix;
fsm->path = path;
return rc;
}
/**
* Remove (if created) directories not explicitly included in package.
* @param fsm file state machine data
* @return 0 on success
*/
/*@-compdef@*/
static int fsmRmdirs(/*@special@*/ FSM_t fsm)
/*@uses fsm->path, fsm->dnlx, fsm->ldn, fsm->rdbuf, fsm->iter @*/
/*@modifies fsm, fileSystem @*/
{
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) {
int dnlen = strlen(fsm->path);
char * te;
dc = dnlIndex(dnli);
if (fsm->dnlx[dc] < 1 || fsm->dnlx[dc] >= dnlen)
continue;
/* Copy to avoid const on fsm->path. */
te = stpcpy(dn, fsm->path) - 1;
fsm->path = dn;
/* Remove generated directories. */
do {
if (*te == '/') {
*te = '\0';
rc = fsmStage(fsm, FSM_RMDIR);
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
te--;
} while ((te - dn) > fsm->dnlx[dc]);
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
fsm->path = path;
return rc;
}
/*@=compdef@*/
/**
* Create (if necessary) directories not explicitly included in package.
* @param fsm file state machine data
* @return 0 on success
*/
static int fsmMkdirs(/*@special@*/ FSM_t fsm)
/*@uses fsm->path, fsm->sb, fsm->osb, fsm->rdbuf, fsm->iter,
fsm->ldn, fsm->ldnlen, fsm->ldnalloc @*/
/*@defines fsm->dnlx, fsm->ldn @*/
/*@modifies fsm, fileSystem @*/
{
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;
int 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) {
int dnlen = strlen(fsm->path);
char * te;
dc = dnlIndex(dnli);
if (dc < 0) continue;
fsm->dnlx[dc] = 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, otherwise "mkdir -p" if non-existent. */
for (i = 1, te = dn + 1; *te != '\0'; te++, i++) {
if (*te != '/') 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);
continue;
}
/*@=usedef =compdef =nullpass =nullderef@*/
/* Validate next component of path. */
rc = fsmStage(fsm, FSM_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 == CPIOERR_LSTAT_FAILED) {
TFI_t fi = fsmGetFi(fsm);
*te = '\0';
st->st_mode = S_IFDIR | (fi->dperms & 07777);
rc = fsmStage(fsm, FSM_MKDIR);
if (!rc)
rpmMessage(RPMMESS_WARNING,
_("%s directory created with perms %04o.\n"),
fsm->path, (unsigned)(st->st_mode & 07777));
*te = '/';
}
if (rc)
/*@innerbreak@*/ break;
}
if (rc) break;
/* Save last validated path. */
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;
}
}
dnli = dnlFreeIterator(dnli);
/*@=observertrans =dependenttrans@*/
fsm->path = path;
st->st_mode = st_mode; /* XXX restore st->st_mode */
return rc;
}
/*@-compmempass@*/
int fsmStage(FSM_t fsm, fileStage stage)
{
#ifdef UNUSED
fileStage prevStage = fsm->stage;
const char * const prev = fileStageString(prevStage);
#endif
static int modulo = 4;
const char * const cur = fileStageString(stage);
struct stat * st = &fsm->sb;
struct stat * ost = &fsm->osb;
int saveerrno = errno;
int rc = fsm->rc;
size_t left;
int i;
#define _fafilter(_a) \
(!((_a) == FA_CREATE || (_a) == FA_ERASE || (_a) == FA_COPYIN || (_a) == FA_COPYOUT) \
? fileActionString(_a) : "")
if (stage & FSM_DEAD) {
/* do nothing */
} else if (stage & FSM_INTERNAL) {
if (_fsm_debug && !(stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s %06o%3d (%4d,%4d)%10d %s %s\n",
cur,
(unsigned)st->st_mode, (int)st->st_nlink,
(int)st->st_uid, (int)st->st_gid, (int)st->st_size,
(fsm->path ? fsm->path : ""),
_fafilter(fsm->action));
} else {
fsm->stage = stage;
if (_fsm_debug || !(stage & FSM_VERBOSE))
rpmMessage(RPMMESS_DEBUG, "%-8s %06o%3d (%4d,%4d)%10d %s %s\n",
cur,
(unsigned)st->st_mode, (int)st->st_nlink,
(int)st->st_uid, (int)st->st_gid, (int)st->st_size,
(fsm->path ? fsm->path + fsm->astriplen : ""),
_fafilter(fsm->action));
}
#undef _fafilter
switch (stage) {
case FSM_UNKNOWN:
break;
case FSM_PKGINSTALL:
while (1) {
/* Clean fsm, free'ing memory. Read next archive header. */
rc = fsmStage(fsm, FSM_INIT);
/* Exit on end-of-payload. */
if (rc == CPIOERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
fsm->postpone = 1;
(void) fsmStage(fsm, FSM_UNDO);
/*@loopbreak@*/ break;
}
/* Extract file from archive. */
rc = fsmStage(fsm, FSM_PROCESS);
if (rc) {
(void) fsmStage(fsm, FSM_UNDO);
/*@loopbreak@*/ break;
}
/* Notify on success. */
(void) fsmStage(fsm, FSM_NOTIFY);
if (fsmStage(fsm, FSM_FINI))
/*@loopbreak@*/ break;
}
break;
case FSM_PKGERASE:
case FSM_PKGCOMMIT:
while (1) {
/* Clean fsm, free'ing memory. */
rc = fsmStage(fsm, FSM_INIT);
/* Exit on end-of-payload. */
if (rc == CPIOERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Rename/erase next item. */
if (fsmStage(fsm, FSM_FINI))
/*@loopbreak@*/ break;
}
break;
case FSM_PKGBUILD:
while (1) {
rc = fsmStage(fsm, FSM_INIT);
/* Exit on end-of-payload. */
if (rc == CPIOERR_HDR_TRAILER) {
rc = 0;
/*@loopbreak@*/ break;
}
/* Exit on error. */
if (rc) {
fsm->postpone = 1;
(void) fsmStage(fsm, FSM_UNDO);
/*@loopbreak@*/ break;
}
/* Copy file into archive. */
rc = fsmStage(fsm, FSM_PROCESS);
if (rc) {
(void) fsmStage(fsm, FSM_UNDO);
/*@loopbreak@*/ break;
}
if (fsmStage(fsm, FSM_FINI))
/*@loopbreak@*/ break;
}
if (!rc)
rc = fsmStage(fsm, FSM_TRAILER);
break;
case FSM_CREATE:
{ rpmTransactionSet ts = fsmGetTs(fsm);
#define _tsmask (RPMTRANS_FLAG_PKGCOMMIT | RPMTRANS_FLAG_COMMIT)
fsm->commit = ((ts && (ts->transFlags & _tsmask) &&
fsm->goal != FSM_PKGCOMMIT) ? 0 : 1);
#undef _tsmask
}
fsm->path = _free(fsm->path);
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 == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
fsm->rdsize = 8 * BUFSIZ;
fsm->rdbuf = fsm->rdb = xmalloc(fsm->rdsize);
fsm->wrsize = 8 * 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 == FSM_PKGINSTALL) {
rc = fsmStage(fsm, FSM_MKDIRS);
if (!rc) fsm->mkdirsdone = 1;
}
break;
case FSM_INIT:
fsm->path = _free(fsm->path);
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 == FSM_PKGINSTALL) {
/* Read next header from payload, checking for end-of-payload. */
rc = fsmStage(fsm, FSM_NEXT);
}
if (rc) break;
/* Identify mapping index. */
fsm->ix = ((fsm->goal == FSM_PKGINSTALL)
? mapFind(fsm->iter, fsm->path) : mapNextIterator(fsm->iter));
/* On non-install, detect end-of-loop. */
if (fsm->goal != FSM_PKGINSTALL && fsm->ix < 0) {
rc = CPIOERR_HDR_TRAILER;
break;
}
/* On non-install, mode must be known so that dirs don't get suffix. */
if (fsm->goal != FSM_PKGINSTALL) {
TFI_t fi = fsmGetFi(fsm);
st->st_mode = fi->fmodes[fsm->ix];
}
/* Generate file path. */
rc = fsmStage(fsm, FSM_MAP);
if (rc) break;
/* Perform lstat/stat for disk file. */
if (fsm->path != NULL) {
rc = fsmStage(fsm, (!(fsm->mapFlags & CPIO_FOLLOW_SYMLINKS)
? FSM_LSTAT : FSM_STAT));
if (rc == CPIOERR_LSTAT_FAILED && errno == ENOENT) {
errno = saveerrno;
rc = 0;
fsm->exists = 0;
} else if (rc == 0) {
fsm->exists = 1;
}
} else {
/* Skip %ghost files on build. */
fsm->exists = 0;
}
fsm->diskchecked = 1;
if (rc) break;
/* On non-install, the disk file stat is what's remapped. */
if (fsm->goal != FSM_PKGINSTALL)
*st = *ost; /* structure assignment */
/* Remap file perms, owner, and group. */
rc = fsmMapAttrs(fsm);
if (rc) break;
fsm->postpone = XFA_SKIPPING(fsm->action);
if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
/*@-evalorder@*/
if (!S_ISDIR(st->st_mode) && st->st_nlink > 1)
fsm->postpone = saveHardLink(fsm);
/*@=evalorder@*/
}
break;
case FSM_PRE:
break;
case FSM_MAP:
rc = fsmMapPath(fsm);
break;
case FSM_MKDIRS:
rc = fsmMkdirs(fsm);
break;
case FSM_RMDIRS:
if (fsm->dnlx)
rc = fsmRmdirs(fsm);
break;
case FSM_PROCESS:
if (fsm->postpone) {
if (fsm->goal == FSM_PKGINSTALL)
rc = fsmStage(fsm, FSM_EAT);
break;
}
if (fsm->goal == FSM_PKGBUILD) {
if (!S_ISDIR(st->st_mode) && st->st_nlink > 1) {
struct hardLink * li, * prev;
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 != FSM_PKGINSTALL)
break;
if (S_ISREG(st->st_mode)) {
const char * path = fsm->path;
if (fsm->osuffix)
fsm->path = fsmFsPath(fsm, st, NULL, NULL);
rc = fsmStage(fsm, FSM_VERIFY);
if (rc == 0 && fsm->osuffix) {
const char * opath = fsm->opath;
fsm->opath = fsm->path;
fsm->path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
rc = fsmStage(fsm, FSM_RENAME);
if (!rc)
rpmMessage(RPMMESS_WARNING,
_("%s saved as %s\n"), fsm->opath, fsm->path);
fsm->path = _free(fsm->path);
fsm->opath = opath;
}
/*@-dependenttrans@*/
fsm->path = path;
/*@=dependenttrans@*/
if (rc != CPIOERR_LSTAT_FAILED) return rc;
rc = expandRegular(fsm);
} else if (S_ISDIR(st->st_mode)) {
mode_t st_mode = st->st_mode;
rc = fsmStage(fsm, FSM_VERIFY);
if (rc == CPIOERR_LSTAT_FAILED) {
st->st_mode &= ~07777; /* XXX abuse st->st_mode */
st->st_mode |= 00700;
rc = fsmStage(fsm, FSM_MKDIR);
st->st_mode = st_mode; /* XXX restore st->st_mode */
}
} else if (S_ISLNK(st->st_mode)) {
const char * opath = fsm->opath;
if ((st->st_size + 1) > fsm->rdsize) {
rc = CPIOERR_HDR_SIZE;
break;
}
fsm->wrlen = st->st_size;
rc = fsmStage(fsm, FSM_DREAD);
if (!rc && fsm->rdnb != fsm->wrlen)
rc = CPIOERR_READ_FAILED;
if (rc) break;
fsm->wrbuf[st->st_size] = '\0';
/* XXX symlink(fsm->opath, fsm->path) */
/*@-dependenttrans@*/
fsm->opath = fsm->wrbuf;
/*@=dependenttrans@*/
rc = fsmStage(fsm, FSM_VERIFY);
if (rc == CPIOERR_LSTAT_FAILED)
rc = fsmStage(fsm, FSM_SYMLINK);
fsm->opath = opath; /* XXX restore fsm->path */
} 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 = fsmStage(fsm, FSM_VERIFY);
if (rc == CPIOERR_LSTAT_FAILED) {
st->st_mode = 0000; /* XXX abuse st->st_mode */
rc = fsmStage(fsm, FSM_MKFIFO);
st->st_mode = st_mode; /* XXX restore st->st_mode */
}
} else if (S_ISCHR(st->st_mode) ||
S_ISBLK(st->st_mode) ||
S_ISSOCK(st->st_mode))
{
rc = fsmStage(fsm, FSM_VERIFY);
if (rc == CPIOERR_LSTAT_FAILED)
rc = fsmStage(fsm, FSM_MKNOD);
} else {
rc = CPIOERR_UNKNOWN_FILETYPE;
}
if (!S_ISDIR(st->st_mode) && st->st_nlink > 1) {
fsm->li->createdPath = fsm->li->linkIndex;
rc = fsmMakeLinks(fsm);
}
break;
case FSM_POST:
break;
case FSM_MKLINKS:
rc = fsmMakeLinks(fsm);
break;
case FSM_NOTIFY: /* XXX move from fsm to psm -> tsm */
if (fsm->goal == FSM_PKGINSTALL || fsm->goal == FSM_PKGBUILD) {
rpmTransactionSet ts = fsmGetTs(fsm);
TFI_t fi = fsmGetFi(fsm);
if (ts && ts->notify && fi)
(void)ts->notify(fi->h, RPMCALLBACK_INST_PROGRESS,
fdGetCpioPos(fsm->cfd), fi->archiveSize,
(fi->ap ? fi->ap->key : NULL), ts->notifyData);
}
break;
case FSM_UNDO:
if (fsm->postpone)
break;
if (fsm->goal == FSM_PKGINSTALL) {
(void) fsmStage(fsm,
(S_ISDIR(st->st_mode) ? FSM_RMDIR : FSM_UNLINK));
#ifdef NOTYET /* XXX remove only dirs just created, not all. */
if (fsm->dnlx)
(void) fsmStage(fsm, FSM_RMDIRS);
#endif
errno = saveerrno;
}
if (fsm->failedFile && *fsm->failedFile == NULL)
*fsm->failedFile = xstrdup(fsm->path);
break;
case FSM_FINI:
if (!fsm->postpone && fsm->commit) {
if (fsm->goal == FSM_PKGINSTALL)
rc = ((!S_ISDIR(st->st_mode) && st->st_nlink > 1)
? fsmCommitLinks(fsm) : fsmStage(fsm, FSM_COMMIT));
if (fsm->goal == FSM_PKGCOMMIT)
rc = fsmStage(fsm, FSM_COMMIT);
if (fsm->goal == FSM_PKGERASE)
rc = fsmStage(fsm, FSM_COMMIT);
}
fsm->path = _free(fsm->path);
fsm->opath = _free(fsm->opath);
memset(st, 0, sizeof(*st));
memset(ost, 0, sizeof(*ost));
break;
case FSM_COMMIT:
/* Rename pre-existing modified or unmanaged file. */
if (fsm->diskchecked && fsm->exists && fsm->osuffix) {
const char * opath = fsm->opath;
const char * path = fsm->path;
/*@-nullstate@*/ /* FIX: fsm->opath null annotation? */
fsm->opath = fsmFsPath(fsm, st, NULL, NULL);
/*@=nullstate@*/
/*@-nullstate@*/ /* FIX: fsm->path null annotation? */
fsm->path = fsmFsPath(fsm, st, NULL, fsm->osuffix);
/*@=nullstate@*/
rc = fsmStage(fsm, FSM_RENAME);
if (!rc) {
rpmMessage(RPMMESS_WARNING, _("%s saved as %s\n"),
fsm->opath, fsm->path);
}
fsm->path = _free(fsm->path);
fsm->path = path;
fsm->opath = _free(fsm->opath);
fsm->opath = opath;
}
/* Remove erased files. */
if (fsm->goal == FSM_PKGERASE) {
if (fsm->action == FA_ERASE) {
TFI_t fi = fsmGetFi(fsm);
if (S_ISDIR(st->st_mode)) {
rc = fsmStage(fsm, FSM_RMDIR);
if (!rc) break;
switch (errno) {
case ENOENT: /* XXX rmdir("/") linux 2.2.x kernel hack */
case ENOTEMPTY:
/* XXX make sure that build side permits %missingok on directories. */
if (fsm->fflags & RPMFILE_MISSINGOK)
break;
/* XXX common error message. */
rpmError(
(strict_erasures ? RPMERR_RMDIR : RPMWARN_RMDIR),
_("%s rmdir of %s failed: Directory not empty\n"),
fiTypeString(fi), fsm->path);
break;
default:
rpmError(
(strict_erasures ? RPMERR_RMDIR : RPMWARN_RMDIR),
_("%s rmdir of %s failed: %s\n"),
fiTypeString(fi), fsm->path, strerror(errno));
break;
}
} else {
rc = fsmStage(fsm, FSM_UNLINK);
if (!rc) break;
if (!(errno == ENOENT && (fsm->fflags & RPMFILE_MISSINGOK)))
rpmError(
(strict_erasures ? RPMERR_UNLINK : RPMWARN_UNLINK),
_("%s unlink of %s failed: %s\n"),
fiTypeString(fi), fsm->path, strerror(errno));
}
}
/* XXX Failure to remove is not (yet) cause for failure. */
if (!strict_erasures) rc = 0;
break;
}
if (!S_ISSOCK(st->st_mode)) { /* XXX /dev/log et al are skipped */
/* 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 = fsmStage(fsm, FSM_RENAME);
if (!rc && fsm->nsuffix) {
const char * opath = fsmFsPath(fsm, st, NULL, NULL);
rpmMessage(RPMMESS_WARNING, _("%s created as %s\n"),
(opath ? opath : ""), fsm->path);
opath = _free(opath);
}
fsm->opath = _free(fsm->opath);
}
if (S_ISLNK(st->st_mode)) {
if (!rc && !getuid())
rc = fsmStage(fsm, FSM_LCHOWN);
} else {
if (!rc && !getuid())
rc = fsmStage(fsm, FSM_CHOWN);
if (!rc)
rc = fsmStage(fsm, FSM_CHMOD);
if (!rc) {
time_t st_mtime = st->st_mtime;
TFI_t fi = fsmGetFi(fsm);
if (fi->fmtimes)
st->st_mtime = fi->fmtimes[fsm->ix];
rc = fsmStage(fsm, FSM_UTIME);
st->st_mtime = st_mtime;
}
}
}
/* Notify on success. */
if (!rc) rc = fsmStage(fsm, FSM_NOTIFY);
break;
case FSM_DESTROY:
fsm->path = _free(fsm->path);
/* Create any remaining links (if no error), and clean up. */
while ((fsm->li = fsm->links) != NULL) {
fsm->links = fsm->li->next;
fsm->li->next = NULL;
if (fsm->goal == FSM_PKGINSTALL && fsm->commit && fsm->li->linksLeft)
{
for (i = 0 ; i < fsm->li->linksLeft; i++) {
if (fsm->li->filex[i] < 0) continue;
rc = CPIOERR_MISSING_HARDLINK;
if (fsm->failedFile && *fsm->failedFile == NULL) {
fsm->ix = fsm->li->filex[i];
if (!fsmStage(fsm, FSM_MAP)) {
*fsm->failedFile = fsm->path;
fsm->path = NULL;
}
}
/*@loopbreak@*/ break;
}
}
if (fsm->goal == FSM_PKGBUILD) {
rc = CPIOERR_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 FSM_VERIFY:
if (fsm->diskchecked && !fsm->exists) {
rc = CPIOERR_LSTAT_FAILED;
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 = fsmStage(fsm, FSM_RENAME);
if (!rc)
(void) fsmStage(fsm, FSM_UNLINK);
else
rc = CPIOERR_UNLINK_FAILED;
fsm->path = fsm->opath;
fsm->opath = NULL;
return (rc ? rc : CPIOERR_LSTAT_FAILED); /* 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 = fsmStage(fsm, FSM_STAT);
if (rc == CPIOERR_STAT_FAILED && errno == 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 = fsmStage(fsm, FSM_READLINK);
errno = saveerrno;
if (rc) break;
if (!strcmp(fsm->opath, 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 == FSM_PROCESS) rc = fsmStage(fsm, FSM_UNLINK);
if (rc == 0) rc = CPIOERR_LSTAT_FAILED;
return (rc ? rc : CPIOERR_LSTAT_FAILED); /* XXX HACK */
/*@notreached@*/ break;
case FSM_UNLINK:
rc = Unlink(fsm->path);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s) %s\n", cur,
fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_UNLINK_FAILED;
break;
case FSM_RENAME:
rc = Rename(fsm->opath, fsm->path);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %s) %s\n", cur,
fsm->opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_RENAME_FAILED;
break;
case FSM_MKDIR:
rc = Mkdir(fsm->path, (st->st_mode & 07777));
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
fsm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_MKDIR_FAILED;
break;
case FSM_RMDIR:
rc = Rmdir(fsm->path);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s) %s\n", cur,
fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_RMDIR_FAILED;
break;
case FSM_CHOWN:
rc = chown(fsm->path, st->st_uid, st->st_gid);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
fsm->path, (int)st->st_uid, (int)st->st_gid,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
break;
case FSM_LCHOWN:
#if ! CHOWN_FOLLOWS_SYMLINK
rc = lchown(fsm->path, st->st_uid, st->st_gid);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
fsm->path, (int)st->st_uid, (int)st->st_gid,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_CHOWN_FAILED;
#endif
break;
case FSM_CHMOD:
rc = chmod(fsm->path, (st->st_mode & 07777));
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
fsm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_CHMOD_FAILED;
break;
case FSM_UTIME:
{ struct utimbuf stamp;
stamp.actime = st->st_mtime;
stamp.modtime = st->st_mtime;
rc = utime(fsm->path, &stamp);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, 0x%x) %s\n", cur,
fsm->path, (unsigned)st->st_mtime,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_UTIME_FAILED;
}
break;
case FSM_SYMLINK:
rc = symlink(fsm->opath, fsm->path);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %s) %s\n", cur,
fsm->opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_SYMLINK_FAILED;
break;
case FSM_LINK:
rc = Link(fsm->opath, fsm->path);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %s) %s\n", cur,
fsm->opath, fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_LINK_FAILED;
break;
case FSM_MKFIFO:
rc = mkfifo(fsm->path, (st->st_mode & 07777));
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, 0%04o) %s\n", cur,
fsm->path, (unsigned)(st->st_mode & 07777),
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_MKFIFO_FAILED;
break;
case FSM_MKNOD:
/*@-unrecog@*/
rc = mknod(fsm->path, (st->st_mode & ~07777), st->st_rdev);
/*@=unrecog@*/
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, 0%o, 0x%x) %s\n", cur,
fsm->path, (unsigned)(st->st_mode & ~07777),
(unsigned)st->st_rdev,
(rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_MKNOD_FAILED;
break;
case FSM_LSTAT:
rc = Lstat(fsm->path, ost);
if (_fsm_debug && (stage & FSM_SYSCALL) && rc && errno != ENOENT)
rpmMessage(RPMMESS_DEBUG, " %8s (%s, ost) %s\n", cur,
fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_LSTAT_FAILED;
break;
case FSM_STAT:
rc = Stat(fsm->path, ost);
if (_fsm_debug && (stage & FSM_SYSCALL) && rc && errno != ENOENT)
rpmMessage(RPMMESS_DEBUG, " %8s (%s, ost) %s\n", cur,
fsm->path, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_STAT_FAILED;
break;
case FSM_READLINK:
/* XXX NUL terminated result in fsm->rdbuf, len in fsm->rdnb. */
rc = Readlink(fsm->path, fsm->rdbuf, fsm->rdsize - 1);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, rdbuf, %d) %s\n", cur,
fsm->path, (int)fsm->rdlen, (rc < 0 ? strerror(errno) : ""));
if (rc < 0) rc = CPIOERR_READLINK_FAILED;
else {
fsm->rdnb = rc;
fsm->rdbuf[fsm->rdnb] = '\0';
rc = 0;
}
break;
case FSM_CHROOT:
break;
case FSM_NEXT:
rc = fsmStage(fsm, FSM_HREAD);
if (rc) break;
if (!strcmp(fsm->path, CPIO_TRAILER)) { /* Detect end-of-payload. */
fsm->path = _free(fsm->path);
rc = CPIOERR_HDR_TRAILER;
}
if (!rc)
rc = fsmStage(fsm, FSM_POS);
break;
case FSM_EAT:
for (left = st->st_size; left > 0; left -= fsm->rdnb) {
fsm->wrlen = (left > fsm->wrsize ? fsm->wrsize : left);
rc = fsmStage(fsm, FSM_DREAD);
if (rc)
/*@loopbreak@*/ break;
}
break;
case FSM_POS:
left = (modulo - (fdGetCpioPos(fsm->cfd) % modulo)) % modulo;
if (left) {
fsm->wrlen = left;
(void) fsmStage(fsm, FSM_DREAD);
}
break;
case FSM_PAD:
left = (modulo - (fdGetCpioPos(fsm->cfd) % modulo)) % modulo;
if (left) {
memset(fsm->rdbuf, 0, left);
/* XXX DWRITE uses rdnb for I/O length. */
fsm->rdnb = left;
(void) fsmStage(fsm, FSM_DWRITE);
}
break;
case FSM_TRAILER:
rc = cpioTrailerWrite(fsm);
break;
case FSM_HREAD:
rc = fsmStage(fsm, FSM_POS);
if (!rc)
rc = cpioHeaderRead(fsm, st); /* Read next payload header. */
break;
case FSM_HWRITE:
rc = cpioHeaderWrite(fsm, st); /* Write next payload header. */
break;
case FSM_DREAD:
fsm->rdnb = Fread(fsm->wrbuf, sizeof(*fsm->wrbuf), fsm->wrlen, fsm->cfd);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, cfd)\trdnb %d\n",
cur, (fsm->wrbuf == fsm->wrb ? "wrbuf" : "mmap"),
(int)fsm->wrlen, (int)fsm->rdnb);
if (fsm->rdnb != fsm->wrlen) fprintf(stderr, "*** short read, had %d, got %d\n", (int)fsm->rdnb, (int)fsm->wrlen);
#ifdef NOTYET
if (Ferror(fsm->rfd))
rc = CPIOERR_READ_FAILED;
#endif
if (fsm->rdnb > 0)
fdSetCpioPos(fsm->cfd, fdGetCpioPos(fsm->cfd) + fsm->rdnb);
break;
case FSM_DWRITE:
fsm->wrnb = Fwrite(fsm->rdbuf, sizeof(*fsm->rdbuf), fsm->rdnb, fsm->cfd);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, cfd)\twrnb %d\n",
cur, (fsm->rdbuf == fsm->rdb ? "rdbuf" : "mmap"),
(int)fsm->rdnb, (int)fsm->wrnb);
if (fsm->rdnb != fsm->wrnb) fprintf(stderr, "*** short write, had %d, got %d\n", (int)fsm->rdnb, (int)fsm->wrnb);
#ifdef NOTYET
if (Ferror(fsm->wfd))
rc = CPIOERR_WRITE_FAILED;
#endif
if (fsm->wrnb > 0)
fdSetCpioPos(fsm->cfd, fdGetCpioPos(fsm->cfd) + fsm->wrnb);
break;
case FSM_ROPEN:
fsm->rfd = Fopen(fsm->path, "r.ufdio");
if (fsm->rfd == NULL || Ferror(fsm->rfd)) {
if (fsm->rfd) (void) fsmStage(fsm, FSM_RCLOSE);
fsm->rfd = NULL;
rc = CPIOERR_OPEN_FAILED;
break;
}
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, \"r\") rfd %p rdbuf %p\n", cur,
fsm->path, fsm->rfd, fsm->rdbuf);
break;
case FSM_READ:
fsm->rdnb = Fread(fsm->rdbuf, sizeof(*fsm->rdbuf), fsm->rdlen, fsm->rfd);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (rdbuf, %d, rfd)\trdnb %d\n",
cur, (int)fsm->rdlen, (int)fsm->rdnb);
if (fsm->rdnb != fsm->rdlen) fprintf(stderr, "*** short read, had %d, got %d\n", (int)fsm->rdnb, (int)fsm->rdlen);
#ifdef NOTYET
if (Ferror(fsm->rfd))
rc = CPIOERR_READ_FAILED;
#endif
break;
case FSM_RCLOSE:
if (fsm->rfd) {
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%p)\n", cur, fsm->rfd);
(void) Fclose(fsm->rfd);
errno = saveerrno;
}
fsm->rfd = NULL;
break;
case FSM_WOPEN:
fsm->wfd = Fopen(fsm->path, "w.ufdio");
if (fsm->wfd == NULL || Ferror(fsm->wfd)) {
if (fsm->wfd) (void) fsmStage(fsm, FSM_WCLOSE);
fsm->wfd = NULL;
rc = CPIOERR_OPEN_FAILED;
}
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%s, \"w\") wfd %p wrbuf %p\n", cur,
fsm->path, fsm->wfd, fsm->wrbuf);
break;
case FSM_WRITE:
fsm->wrnb = Fwrite(fsm->wrbuf, sizeof(*fsm->wrbuf), fsm->rdnb, fsm->wfd);
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (wrbuf, %d, wfd)\twrnb %d\n",
cur, (int)fsm->rdnb, (int)fsm->wrnb);
if (fsm->rdnb != fsm->wrnb) fprintf(stderr, "*** short write: had %d, got %d\n", (int)fsm->rdnb, (int)fsm->wrnb);
#ifdef NOTYET
if (Ferror(fsm->wfd))
rc = CPIOERR_WRITE_FAILED;
#endif
break;
case FSM_WCLOSE:
if (fsm->wfd) {
if (_fsm_debug && (stage & FSM_SYSCALL))
rpmMessage(RPMMESS_DEBUG, " %8s (%p)\n", cur, fsm->wfd);
(void) Fclose(fsm->wfd);
errno = saveerrno;
}
fsm->wfd = NULL;
break;
default:
break;
}
if (!(stage & FSM_INTERNAL)) {
fsm->rc = (rc == CPIOERR_HDR_TRAILER ? 0 : rc);
}
return rc;
}
/*@=compmempass@*/
/*@obserever@*/ const char *const fileActionString(fileAction 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_SKIPMULTILIB: return "skipmultilib";
default: return "???";
}
/*@notreached@*/
}
/*@observer@*/ const char *const fileStageString(fileStage a) {
switch(a) {
case FSM_UNKNOWN: return "unknown";
case FSM_PKGINSTALL:return "pkginstall";
case FSM_PKGERASE: return "pkgerase";
case FSM_PKGBUILD: return "pkgbuild";
case FSM_PKGCOMMIT: return "pkgcommit";
case FSM_PKGUNDO: return "pkgundo";
case FSM_CREATE: return "create";
case FSM_INIT: return "init";
case FSM_MAP: return "map";
case FSM_MKDIRS: return "mkdirs";
case FSM_RMDIRS: return "rmdirs";
case FSM_PRE: return "pre";
case FSM_PROCESS: return "process";
case FSM_POST: return "post";
case FSM_MKLINKS: return "mklinks";
case FSM_NOTIFY: return "notify";
case FSM_UNDO: return "undo";
case FSM_FINI: return "fini";
case FSM_COMMIT: return "commit";
case FSM_DESTROY: return "destroy";
case FSM_VERIFY: return "verify";
case FSM_UNLINK: return "Unlink";
case FSM_RENAME: return "Rename";
case FSM_MKDIR: return "Mkdir";
case FSM_RMDIR: return "rmdir";
case FSM_CHOWN: return "chown";
case FSM_LCHOWN: return "lchown";
case FSM_CHMOD: return "chmod";
case FSM_UTIME: return "utime";
case FSM_SYMLINK: return "symlink";
case FSM_LINK: return "Link";
case FSM_MKFIFO: return "mkfifo";
case FSM_MKNOD: return "mknod";
case FSM_LSTAT: return "Lstat";
case FSM_STAT: return "Stat";
case FSM_READLINK: return "Readlink";
case FSM_CHROOT: return "chroot";
case FSM_NEXT: return "next";
case FSM_EAT: return "eat";
case FSM_POS: return "pos";
case FSM_PAD: return "pad";
case FSM_TRAILER: return "trailer";
case FSM_HREAD: return "hread";
case FSM_HWRITE: return "hwrite";
case FSM_DREAD: return "Fread";
case FSM_DWRITE: return "Fwrite";
case FSM_ROPEN: return "Fopen";
case FSM_READ: return "Fread";
case FSM_RCLOSE: return "Fclose";
case FSM_WOPEN: return "Fopen";
case FSM_WRITE: return "Fwrite";
case FSM_WCLOSE: return "Fclose";
default: return "???";
}
/*@noteached@*/
}
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