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| author | Colin Percival <cperciva@daemonology.net> | 2011-08-02 04:56:27 -0400 |
|---|---|---|
| committer | Colin Percival <cperciva@daemonology.net> | 2011-08-02 04:56:27 -0400 |
| commit | 39ed068629d841d15d15abc95eb8e8af6cd66525 (patch) | |
| tree | 3b549088c0c5b7e563375300a3ab9ba90307c3f4 /tar/bsdtar.c | |
| parent | 976b0960e67e6ae9d096110157e45d91ad878eb5 (diff) | |
| download | libarchive-39ed068629d841d15d15abc95eb8e8af6cd66525.tar.gz | |
Make sure that the argument to --strip-components is a number. Otherwise
if someone accidentally omits the argument, we'll silently eat the next
command line argument. (GNU tar checks this, otherwise I wouldn't bother.)
Suggested by: Ralph Corderoy (via Tarsnap)
SVN-Revision: 3513
Diffstat (limited to 'tar/bsdtar.c')
| -rw-r--r-- | tar/bsdtar.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tar/bsdtar.c b/tar/bsdtar.c index d69ffb34..d508e775 100644 --- a/tar/bsdtar.c +++ b/tar/bsdtar.c @@ -493,7 +493,13 @@ main(int argc, char **argv) bsdtar->extract_flags |= ARCHIVE_EXTRACT_OWNER; break; case OPTION_STRIP_COMPONENTS: /* GNU tar 1.15 */ - bsdtar->strip_components = atoi(bsdtar->argument); + errno = 0; + bsdtar->strip_components = strtol(bsdtar->argument, + NULL, 0); + if (errno) + lafe_errc(1, 0, + "Invalid --strip-components argument: %s", + bsdtar->argument); break; case 'T': /* GNU tar */ bsdtar->names_from_file = bsdtar->argument; |