From 1268afe83692cb8a9ea839ab979d82458da2d03d Mon Sep 17 00:00:00 2001 From: Lukas Fleischer Date: Mon, 4 Mar 2013 13:25:33 +0100 Subject: Free reflists after usage Free reflists in cgit_print_branches() and in cgit_print_tags() before returning reflist structures to the stack. This fixes following memory leaks seen with "PATH_INFO=/cgit/refs/": ==5710== 1,312 (32 direct, 1,280 indirect) bytes in 1 blocks are definitely lost in loss record 63 of 71 ==5710== at 0x4C2C04B: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==5710== by 0x4C2C2FF: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==5710== by 0x46CA9B: xrealloc (wrapper.c:100) ==5710== by 0x40AAA6: cgit_add_ref (shared.c:156) ==5710== by 0x40ABC4: cgit_refs_cb (shared.c:186) ==5710== by 0x44BCBA: do_one_ref (refs.c:527) ==5710== by 0x44D240: do_for_each_ref_in_dir (refs.c:553) ==5710== by 0x44D6BA: do_for_each_ref (refs.c:1298) ==5710== by 0x410FE2: cgit_print_branches (ui-refs.c:191) ==5710== by 0x4111E9: cgit_print_refs (ui-refs.c:244) ==5710== by 0x407C85: refs_fn (cmd.c:105) ==5710== by 0x405DDF: process_request (cgit.c:566) ==5710== ==5710== 6,846 (256 direct, 6,590 indirect) bytes in 1 blocks are definitely lost in loss record 68 of 71 ==5710== at 0x4C2C25E: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==5710== by 0x46CA9B: xrealloc (wrapper.c:100) ==5710== by 0x40AAA6: cgit_add_ref (shared.c:156) ==5710== by 0x40ABC4: cgit_refs_cb (shared.c:186) ==5710== by 0x44BCBA: do_one_ref (refs.c:527) ==5710== by 0x44D240: do_for_each_ref_in_dir (refs.c:553) ==5710== by 0x44D6EC: do_for_each_ref (refs.c:1288) ==5710== by 0x4110D5: cgit_print_tags (ui-refs.c:218) ==5710== by 0x4111FD: cgit_print_refs (ui-refs.c:246) ==5710== by 0x407C85: refs_fn (cmd.c:105) ==5710== by 0x405DDF: process_request (cgit.c:566) ==5710== by 0x407490: cache_process (cache.c:322) Signed-off-by: Lukas Fleischer --- cgit.h | 1 + shared.c | 36 ++++++++++++++++++++++++++++++++++++ ui-refs.c | 4 ++++ 3 files changed, 41 insertions(+) diff --git a/cgit.h b/cgit.h index c655bd8..ed5cf14 100644 --- a/cgit.h +++ b/cgit.h @@ -304,6 +304,7 @@ extern char *strlpart(char *txt, int maxlen); extern char *strrpart(char *txt, int maxlen); extern void cgit_add_ref(struct reflist *list, struct refinfo *ref); +extern void cgit_free_reflist_inner(struct reflist *list); extern int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data); diff --git a/shared.c b/shared.c index 124d079..cc06930 100644 --- a/shared.c +++ b/shared.c @@ -176,6 +176,42 @@ static struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char return ref; } +static void cgit_free_taginfo(struct taginfo *tag) +{ + if (tag->tagger) + free(tag->tagger); + if (tag->tagger_email) + free(tag->tagger_email); + if (tag->msg) + free(tag->msg); + free(tag); +} + +static void cgit_free_refinfo(struct refinfo *ref) +{ + if (ref->refname) + free((char *)ref->refname); + switch (ref->object->type) { + case OBJ_TAG: + cgit_free_taginfo(ref->tag); + break; + case OBJ_COMMIT: + cgit_free_commitinfo(ref->commit); + break; + } + free(ref); +} + +void cgit_free_reflist_inner(struct reflist *list) +{ + int i; + + for (i = 0; i < list->count; i++) { + cgit_free_refinfo(list->refs[i]); + } + free(list->refs); +} + int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { diff --git a/ui-refs.c b/ui-refs.c index ce06b08..4a9b8d3 100644 --- a/ui-refs.c +++ b/ui-refs.c @@ -205,6 +205,8 @@ void cgit_print_branches(int maxcount) if (maxcount < list.count) print_refs_link("heads"); + + cgit_free_reflist_inner(&list); } void cgit_print_tags(int maxcount) @@ -229,6 +231,8 @@ void cgit_print_tags(int maxcount) if (maxcount < list.count) print_refs_link("tags"); + + cgit_free_reflist_inner(&list); } void cgit_print_refs() -- cgit