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Diffstat (limited to 'archival/libunarchive/get_header_ar.c')
-rw-r--r--archival/libunarchive/get_header_ar.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/archival/libunarchive/get_header_ar.c b/archival/libunarchive/get_header_ar.c
index 6638c65..4e294b2 100644
--- a/archival/libunarchive/get_header_ar.c
+++ b/archival/libunarchive/get_header_ar.c
@@ -9,6 +9,7 @@
char get_header_ar(archive_handle_t *archive_handle)
{
+ int err;
file_header_t *typed = archive_handle->file_header;
union {
char raw[60];
@@ -45,15 +46,23 @@ char get_header_ar(archive_handle_t *archive_handle)
archive_handle->offset += 60;
/* align the headers based on the header magic */
- if ((ar.formatted.magic[0] != '`') || (ar.formatted.magic[1] != '\n')) {
+ if (ar.formatted.magic[0] != '`' || ar.formatted.magic[1] != '\n')
bb_error_msg_and_die("invalid ar header");
- }
- typed->mode = xstrtoul(ar.formatted.mode, 8);
- typed->mtime = xatou(ar.formatted.date);
- typed->uid = xatou(ar.formatted.uid);
- typed->gid = xatou(ar.formatted.gid);
- typed->size = xatoul(ar.formatted.size);
+ /* FIXME: more thorough routine would be in order here */
+ /* (we have something like that in tar) */
+ /* but for now we are lax. This code works because */
+ /* on misformatted numbers bb_strtou returns all-ones */
+ typed->mode = err = bb_strtou(ar.formatted.mode, NULL, 8);
+ if (err == -1) bb_error_msg_and_die("invalid ar header");
+ typed->mtime = err = bb_strtou(ar.formatted.date, NULL, 10);
+ if (err == -1) bb_error_msg_and_die("invalid ar header");
+ typed->uid = err = bb_strtou(ar.formatted.uid, NULL, 10);
+ if (err == -1) bb_error_msg_and_die("invalid ar header");
+ typed->gid = err = bb_strtou(ar.formatted.gid, NULL, 10);
+ if (err == -1) bb_error_msg_and_die("invalid ar header");
+ typed->size = err = bb_strtou(ar.formatted.size, NULL, 10);
+ if (err == -1) bb_error_msg_and_die("invalid ar header");
/* long filenames have '/' as the first character */
if (ar.formatted.name[0] == '/') {