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authorDan McGee <dan@archlinux.org>2008-05-04 20:51:04 -0500
committerDan McGee <dan@archlinux.org>2008-05-08 20:59:59 -0500
commitdf5024fd64de5b033ed76d3ea347a1126572cbc3 (patch)
tree84ac9169c0ecc89e98370b2a01dcf05c0e093c91 /lib
parent081ba4816ee90e59be31a14da6e7ac2ea5a10db8 (diff)
Use strdup() instead of a static buffer
We only need a copy of this string once we know we are going to extract it, and we don't need a static buffer to copy it into since it is coming from a known-length string. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/libalpm/add.c38
1 files changed, 24 insertions, 14 deletions
diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c
index f759e7de..33898934 100644
--- a/lib/libalpm/add.c
+++ b/lib/libalpm/add.c
@@ -278,17 +278,18 @@ static int extract_single_file(struct archive *archive,
struct archive_entry *entry, pmpkg_t *newpkg, pmpkg_t *oldpkg,
pmtrans_t *trans, pmdb_t *db)
{
- char entryname[PATH_MAX]; /* the name of the file in the archive */
+ const char *entryname;
mode_t entrymode;
char filename[PATH_MAX]; /* the actual file we're extracting */
int needbackup = 0, notouch = 0;
char *hash_orig = NULL;
+ char *entryname_orig = NULL;
const int archive_flags = ARCHIVE_EXTRACT_OWNER |
ARCHIVE_EXTRACT_PERM |
ARCHIVE_EXTRACT_TIME;
int errors = 0;
- strncpy(entryname, archive_entry_pathname(entry), PATH_MAX);
+ entryname = archive_entry_pathname(entry);
entrymode = archive_entry_mode(entry);
memset(filename, 0, PATH_MAX); /* just to be sure */
@@ -326,7 +327,8 @@ static int extract_single_file(struct archive *archive,
/* if a file is in the add skiplist we never extract it */
if(alpm_list_find_str(trans->skip_add, filename)) {
- _alpm_log(PM_LOG_DEBUG, "%s is in trans->skip_add, skipping extraction\n", entryname);
+ _alpm_log(PM_LOG_DEBUG, "%s is in trans->skip_add, skipping extraction\n",
+ entryname);
archive_read_data_skip(archive);
return(0);
}
@@ -433,6 +435,10 @@ static int extract_single_file(struct archive *archive,
/* case 5,8: don't need to do anything special */
}
+ /* we need access to the original entryname later after calls to
+ * archive_entry_set_pathname(), so we need to dupe it and free() later */
+ STRDUP(entryname_orig, entryname, RET_ERR(PM_ERR_MEMORY, -1));
+
if(needbackup) {
char checkfile[PATH_MAX];
char *hash_local = NULL, *hash_pkg = NULL;
@@ -445,13 +451,14 @@ static int extract_single_file(struct archive *archive,
if(ret == ARCHIVE_WARN) {
/* operation succeeded but a non-critical error was encountered */
_alpm_log(PM_LOG_DEBUG, "warning extracting %s (%s)\n",
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
} else if(ret != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)\n"),
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
alpm_logaction("error: could not extract %s (%s)\n",
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
FREE(hash_orig);
+ FREE(entryname_orig);
return(1);
}
@@ -464,7 +471,7 @@ static int extract_single_file(struct archive *archive,
for(backups = alpm_pkg_get_backup(newpkg); backups;
backups = alpm_list_next(backups)) {
char *oldbackup = alpm_list_getdata(backups);
- if(!oldbackup || strcmp(oldbackup, entryname) != 0) {
+ if(!oldbackup || strcmp(oldbackup, entryname_orig) != 0) {
continue;
}
char *backup = NULL;
@@ -478,7 +485,7 @@ static int extract_single_file(struct archive *archive,
backups->data = backup;
}
- _alpm_log(PM_LOG_DEBUG, "checking hashes for %s\n", entryname);
+ _alpm_log(PM_LOG_DEBUG, "checking hashes for %s\n", entryname_orig);
_alpm_log(PM_LOG_DEBUG, "current: %s\n", hash_local);
_alpm_log(PM_LOG_DEBUG, "new: %s\n", hash_pkg);
_alpm_log(PM_LOG_DEBUG, "original: %s\n", hash_orig);
@@ -518,7 +525,7 @@ static int extract_single_file(struct archive *archive,
/* installed file has NOT been changed by user */
if(strcmp(hash_orig, hash_pkg) != 0) {
_alpm_log(PM_LOG_DEBUG, "action: installing new file: %s\n",
- entryname);
+ entryname_orig);
if(rename(checkfile, filename)) {
_alpm_log(PM_LOG_ERROR, _("could not rename %s to %s (%s)\n"),
@@ -547,7 +554,8 @@ static int extract_single_file(struct archive *archive,
unlink(checkfile);
} else {
char newpath[PATH_MAX];
- _alpm_log(PM_LOG_DEBUG, "action: keeping current file and installing new one with .pacnew ending\n");
+ _alpm_log(PM_LOG_DEBUG, "action: keeping current file and installing"
+ " new one with .pacnew ending\n");
snprintf(newpath, PATH_MAX, "%s.pacnew", filename);
if(rename(checkfile, newpath)) {
_alpm_log(PM_LOG_ERROR, _("could not install %s as %s (%s)\n"),
@@ -593,12 +601,13 @@ static int extract_single_file(struct archive *archive,
if(ret == ARCHIVE_WARN) {
/* operation succeeded but a non-critical error was encountered */
_alpm_log(PM_LOG_DEBUG, "warning extracting %s (%s)\n",
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
} else if(ret != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)\n"),
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
alpm_logaction("error: could not extract %s (%s)\n",
- entryname, archive_error_string(archive));
+ entryname_orig, archive_error_string(archive));
+ FREE(entryname_orig);
return(1);
}
@@ -610,7 +619,7 @@ static int extract_single_file(struct archive *archive,
/* length is tab char, null byte and MD5 (32 char) */
size_t backup_len = strlen(oldbackup) + 34;
- if(!oldbackup || strcmp(oldbackup, entryname) != 0) {
+ if(!oldbackup || strcmp(oldbackup, entryname_orig) != 0) {
continue;
}
_alpm_log(PM_LOG_DEBUG, "appending backup entry for %s\n", filename);
@@ -625,6 +634,7 @@ static int extract_single_file(struct archive *archive,
b->data = backup;
}
}
+ FREE(entryname_orig);
return(errors);
}