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authorLukas Fleischer2013-03-04 13:25:35 +0100
committerJason A. Donenfeld2013-03-04 19:55:34 -0500
commit0ffdc46f0830d89e32204e1b30145b4c26727e6c (patch)
tree8596030d3926a8dd3ed13d7a2704acc2401dd907
parentprint_tag_downloads(): Free ref variable (diff)
downloadcgit-0ffdc46f0830d89e32204e1b30145b4c26727e6c.tar.gz
cgit-0ffdc46f0830d89e32204e1b30145b4c26727e6c.zip
find_default_branch(): Free refmatch after usage
Fixes following memory leak seen with "PATH_INFO=/cgit/refs/":

    ==13408== 7 bytes in 1 blocks are definitely lost in loss record 4 of 52
    ==13408==    at 0x4C2C04B: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
    ==13408==    by 0x56F2DF1: strdup (in /usr/lib/libc-2.17.so)
    ==13408==    by 0x46CA78: xstrdup (wrapper.c:35)
    ==13408==    by 0x405840: find_current_ref (cgit.c:426)
    ==13408==    by 0x44BE5A: do_one_ref (refs.c:527)
    ==13408==    by 0x44D3E0: do_for_each_ref_in_dir (refs.c:553)
    ==13408==    by 0x44D85A: do_for_each_ref (refs.c:1298)
    ==13408==    by 0x405889: find_default_branch (cgit.c:438)
    ==13408==    by 0x405AC4: prepare_repo_cmd (cgit.c:490)
    ==13408==    by 0x405D97: process_request (cgit.c:557)
    ==13408==    by 0x407490: cache_process (cache.c:322)
    ==13408==    by 0x406C18: main (cgit.c:864)

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
-rw-r--r--cgit.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/cgit.c b/cgit.c index 5b20de3..afafcce 100644 --- a/cgit.c +++ b/cgit.c
@@ -427,6 +427,12 @@ static int find_current_ref(const char *refname, const unsigned char *sha1,
427 return info->match; 427 return info->match;
428} 428}
429 429
430static void free_refmatch_inner(struct refmatch *info)
431{
432 if (info->first_ref)
433 free(info->first_ref);
434}
435
430static char *find_default_branch(struct cgit_repo *repo) 436static char *find_default_branch(struct cgit_repo *repo)
431{ 437{
432 struct refmatch info; 438 struct refmatch info;
@@ -442,6 +448,8 @@ static char *find_default_branch(struct cgit_repo *repo)
442 ref = info.first_ref; 448 ref = info.first_ref;
443 if (ref) 449 if (ref)
444 ref = xstrdup(ref); 450 ref = xstrdup(ref);
451 free_refmatch_inner(&info);
452
445 return ref; 453 return ref;
446} 454}
447 455