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| author | Tay Ray Chuan <rctay89@gmail.com> | 2009-06-06 16:43:36 +0800 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2009-06-06 10:56:27 -0700 |
| commit | 20cfb3aa710d302829a776d7fbad2b89f71f15b6 (patch) | |
| tree | b9e4153f98f61b91f7b2b3f86611bdc2fdaa63df /http-walker.c | |
| parent | 48188c259a7e6c87c20121933287b8c8ca721e3a (diff) | |
| download | git-20cfb3aa710d302829a776d7fbad2b89f71f15b6.tar.gz | |
http*: copy string returned by sha1_to_hex
In the fetch_index implementations in http-push.c and http-walker.c,
the string returned by sha1_to_hex is assumed to stay immutable.
This patch ensures that hex stays immutable by copying the string
returned by sha1_to_hex (via xstrdup) and frees it subsequently. It
also refactors free()'s and fclose()'s with labels.
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'http-walker.c')
| -rw-r--r-- | http-walker.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/http-walker.c b/http-walker.c index bbc3023e40..d6cc622e96 100644 --- a/http-walker.c +++ b/http-walker.c @@ -371,7 +371,8 @@ static void prefetch(struct walker *walker, unsigned char *sha1) static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned char *sha1) { - char *hex = sha1_to_hex(sha1); + int ret = 0; + char *hex = xstrdup(sha1_to_hex(sha1)); char *filename; char *url; char tmpfile[PATH_MAX]; @@ -394,18 +395,18 @@ static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned ch if (start_active_slot(slot)) { run_active_slot(slot); if (results.curl_result != CURLE_OK) { - free(url); - return error("Unable to verify pack %s is available", + ret = error("Unable to verify pack %s is available", hex); + goto cleanup_pack; } } else { - free(url); - return error("Unable to start request"); + ret = error("Unable to start request"); + goto cleanup_pack; } if (has_pack_index(sha1)) { - free(url); - return 0; + ret = 0; + goto cleanup_pack; } if (walker->get_verbosely) @@ -417,9 +418,9 @@ static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned ch snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); indexfile = fopen(tmpfile, "a"); if (!indexfile) { - free(url); - return error("Unable to open local file %s for pack index", - tmpfile); + ret = error("Unable to open local file %s for pack index", + tmpfile); + goto cleanup_pack; } slot = get_active_slot(); @@ -450,24 +451,24 @@ static int fetch_index(struct walker *walker, struct alt_base *repo, unsigned ch if (start_active_slot(slot)) { run_active_slot(slot); if (results.curl_result != CURLE_OK) { - free(url); - fclose(indexfile); - slot->local = NULL; - return error("Unable to get pack index %s\n%s", url, - curl_errorstr); + ret = error("Unable to get pack index %s\n%s", url, + curl_errorstr); + goto cleanup_index; } } else { - free(url); - fclose(indexfile); - slot->local = NULL; - return error("Unable to start request"); + ret = error("Unable to start request"); + goto cleanup_index; } - free(url); + ret = move_temp_to_file(tmpfile, filename); + +cleanup_index: fclose(indexfile); slot->local = NULL; - - return move_temp_to_file(tmpfile, filename); +cleanup_pack: + free(url); + free(hex); + return ret; } static int setup_index(struct walker *walker, struct alt_base *repo, unsigned char *sha1) |