/*
* Delete the results of a package installation.
*
* This is here rather than in the pkg_delete code because pkg_add needs to
* run it too in cases of failure.
*/
int
delete_package(Boolean ign_err, package_t *pkg, Boolean NoDeleteFiles,
const char *destdir)
{
plist_t *p;
const char *last_file = "";
int fail = SUCCESS;
Boolean preserve;
char tmp[MaxPathSize];
const char *prefix = NULL, *name = NULL;
if (!pkgdb_open(ReadWrite)) {
err(EXIT_FAILURE, "cannot open pkgdb");
}
preserve = find_plist_option(pkg, "preserve") ? TRUE : FALSE;
for (p = pkg->head; p; p = p->next) {
switch (p->type) {
case PLIST_NAME:
name = p->name;
break;
case PLIST_CWD:
if (prefix == NULL)
prefix = p->name;
break;
default:
break;
}
}
if (name == NULL || prefix == NULL)
errx(EXIT_FAILURE, "broken PLIST");
/*
* Remove database entries first, directory removal is done
* in the main loop below.
*/
for (p = pkg->head; p; p = p->next) {
if (p->type == PLIST_PKGDIR)
delete_pkgdir(name, prefix, p->name);
}
for (p = pkg->head; p; p = p->next) {
switch (p->type) {
case PLIST_NAME:
/* Handled already */
break;
case PLIST_PKGDIR:
case PLIST_DIR_RM:
(void) snprintf(tmp, sizeof(tmp), "%s/%s",
prefix, p->name);
if (has_pkgdir(tmp))
continue;
(void) snprintf(tmp, sizeof(tmp), "%s%s%s/%s",
destdir ? destdir : "", destdir ? "/" : "",
prefix, p->name);
if (!fexists(tmp)) {
if (p->type == PLIST_PKGDIR)
warnx("Directory `%s' disappeared, skipping", tmp);
} else if (!isdir(tmp)) {
warnx("attempting to delete a file `%s' as a directory\n"
"this packing list is incorrect - ignoring delete request", tmp);
} else if (delete_with_parents(tmp, ign_err, TRUE))
fail = FAIL;
break;
case PLIST_IGNORE:
p = p->next;
break;
case PLIST_UNEXEC:
if (NoDeleteFiles)
break;
format_cmd(tmp, sizeof(tmp), p->name, prefix, last_file);
printf("Executing `%s'\n", tmp);
if (!Fake && system(tmp)) {
warnx("unexec command for `%s' failed", tmp);
fail = FAIL;
}
break;
case PLIST_FILE:
last_file = p->name;
(void) snprintf(tmp, sizeof(tmp), "%s%s%s/%s",
destdir ? destdir : "", destdir ? "/" : "",
prefix, p->name);
if (isdir(tmp)) {
warnx("attempting to delete directory `%s' as a file\n"
"this packing list is incorrect - ignoring delete request", tmp);
} else {
int restored = 0; /* restored from preserve? */
if (p->next && p->next->type == PLIST_COMMENT) {
if (strncmp(p->next->name, CHECKSUM_HEADER, ChecksumHeaderLen) == 0) {
char *cp, buf[LegibleChecksumLen];
if ((cp = MD5File(tmp, buf)) != NULL) {
/* Mismatch? */
if (strcmp(cp, p->next->name + ChecksumHeaderLen) != 0) {
printf("original MD5 checksum failed, %s: %s\n",
Force ? "deleting anyway" : "not deleting", tmp);
if (!Force) {
fail = FAIL;
goto pkgdb_cleanup;
}
}
}
} else if (strncmp(p->next->name, SYMLINK_HEADER, SymlinkHeaderLen) == 0) {
char buf[MaxPathSize + SymlinkHeaderLen];
int cc;
(void) strlcpy(buf, SYMLINK_HEADER,
sizeof(buf));
if ((cc = readlink(tmp, &buf[SymlinkHeaderLen],
sizeof(buf) - SymlinkHeaderLen - 1)) < 0) {
warn("can't readlink `%s'", tmp);
goto pkgdb_cleanup;
}
buf[SymlinkHeaderLen + cc] = 0x0;
if (strcmp(buf, p->next->name) != 0) {
if ((cc = readlink(&buf[SymlinkHeaderLen], &buf[SymlinkHeaderLen],
sizeof(buf) - SymlinkHeaderLen)) < 0) {
printf("symlink %s is not same as recorded value, %s: %s\n",
buf, Force ? "deleting anyway" : "not deleting", tmp);
if (!Force) {
fail = FAIL;
goto pkgdb_cleanup;
}
}
buf[SymlinkHeaderLen + cc] = 0x0;
if (strcmp(buf, p->next->name) != 0) {
printf("symlink %s is not same as recorded value, %s: %s\n",
buf, Force ? "deleting anyway" : "not deleting", tmp);
if (!Force) {
fail = FAIL;
goto pkgdb_cleanup;
}
}
}
}
}
if (Verbose && !NoDeleteFiles)
printf("Delete file %s\n", tmp);
if (!Fake && !NoDeleteFiles) {
if (delete_with_parents(tmp, ign_err, FALSE))
fail = FAIL;
if (preserve && name) {
char tmp2[MaxPathSize];
if (make_preserve_name(tmp2, MaxPathSize, name, tmp)) {
if (fexists(tmp2)) {
if (rename(tmp2, tmp))
warn("preserve: unable to restore %s as %s",
tmp2, tmp);
else
restored = 1;
}
}
}
}
pkgdb_cleanup:
if (!Fake) {
if (!restored) {
errno = 0;
if (pkgdb_remove(tmp) && errno)
perror("pkgdb_remove");
}
}
}
break;
default:
break;
}
}
pkgdb_close();
return fail;
}
/*
* Delete the results of a package installation.
*
* This is here rather than in the pkg_delete code because pkg_add needs to
* run it too in cases of failure.
*/
int
delete_package(Boolean ign_err, Boolean nukedirs, Package *pkg)
{
PackingList p;
const char *Where = ".", *last_file = "";
Boolean fail = SUCCESS;
Boolean preserve;
char tmp[FILENAME_MAX], *name = NULL;
char *prefix = NULL;
preserve = find_plist_option(pkg, "preserve") ? TRUE : FALSE;
for (p = pkg->head; p; p = p->next) {
switch (p->type) {
case PLIST_NAME:
name = p->name;
break;
case PLIST_IGNORE:
p = p->next;
break;
case PLIST_CWD:
if (!prefix)
prefix = p->name;
Where = (p->name == NULL) ? prefix : p->name;
if (Verbose)
printf("Change working directory to %s\n", Where);
break;
case PLIST_UNEXEC:
format_cmd(tmp, FILENAME_MAX, p->name, Where, last_file);
if (Verbose)
printf("Execute '%s'\n", tmp);
if (!Fake && system(tmp)) {
warnx("unexec command for '%s' failed", tmp);
fail = FAIL;
}
break;
case PLIST_FILE:
last_file = p->name;
if (*p->name == '/')
strlcpy(tmp, p->name, FILENAME_MAX);
else
sprintf(tmp, "%s/%s", Where, p->name);
if (isdir(tmp) && fexists(tmp) && !issymlink(tmp)) {
warnx("cannot delete specified file '%s' - it is a directory!\n"
"this packing list is incorrect - ignoring delete request", tmp);
}
else {
if (p->next && p->next->type == PLIST_COMMENT && !strncmp(p->next->name, "MD5:", 4)) {
char *cp = NULL, buf[33];
/*
* For packing lists whose version is 1.1 or greater, the md5
* hash for a symlink is calculated on the string returned
* by readlink().
*/
if (issymlink(tmp) && verscmp(pkg, 1, 0) > 0) {
int len;
char linkbuf[FILENAME_MAX];
if ((len = readlink(tmp, linkbuf, FILENAME_MAX)) > 0)
cp = MD5Data((unsigned char *)linkbuf, len, buf);
} else if (isfile(tmp) || verscmp(pkg, 1, 1) < 0)
cp = MD5File(tmp, buf);
if (cp != NULL) {
/* Mismatch? */
if (strcmp(cp, p->next->name + 4)) {
warnx("'%s' fails original MD5 checksum - %s",
tmp, Force ? "deleted anyway." : "not deleted.");
if (!Force) {
fail = FAIL;
continue;
}
}
}
}
if (Verbose)
printf("Delete file %s\n", tmp);
if (!Fake) {
if (delete_hierarchy(tmp, ign_err, nukedirs))
fail = FAIL;
if (preserve && name) {
char tmp2[FILENAME_MAX];
if (make_preserve_name(tmp2, FILENAME_MAX, name, tmp)) {
if (fexists(tmp2)) {
if (rename(tmp2, tmp))
warn("preserve: unable to restore %s as %s",
tmp2, tmp);
}
}
}
}
}
break;
case PLIST_DIR_RM:
sprintf(tmp, "%s/%s", Where, p->name);
if (!isdir(tmp) && fexists(tmp)) {
warnx("cannot delete specified directory '%s' - it is a file!\n"
"this packing list is incorrect - ignoring delete request", tmp);
}
else {
if (Verbose)
printf("Delete directory %s\n", tmp);
if (!Fake && delete_hierarchy(tmp, ign_err, FALSE)) {
warnx("unable to completely remove directory '%s'", tmp);
fail = FAIL;
}
}
last_file = p->name;
break;
default:
break;
}
}
return fail;
}
