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Merge branch 'jc/leakfix-hashfile' into maint-2.46
Leakfix. * jc/leakfix-hashfile: csum-file: introduce discard_hashfile()
2 parents a5e4f53 + c3d034d commit 88639e5

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4 files changed

+89
-21
lines changed

4 files changed

+89
-21
lines changed

‎csum-file.c

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -102,6 +102,15 @@ int finalize_hashfile(struct hashfile *f, unsigned char *result,
102102
return fd;
103103
}
104104

105+
void discard_hashfile(struct hashfile *f)
106+
{
107+
if (0 <= f->check_fd)
108+
close(f->check_fd);
109+
if (0 <= f->fd)
110+
close(f->fd);
111+
free_hashfile(f);
112+
}
113+
105114
void hashwrite(struct hashfile *f, const void *buf, unsigned int count)
106115
{
107116
while (count) {

‎csum-file.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -47,6 +47,7 @@ struct hashfile *hashfd(int fd, const char *name);
4747
struct hashfile *hashfd_check(const char *name);
4848
struct hashfile *hashfd_throughput(int fd, const char *name, struct progress *tp);
4949
int finalize_hashfile(struct hashfile *, unsigned char *, enum fsync_component, unsigned int);
50+
void discard_hashfile(struct hashfile *);
5051
void hashwrite(struct hashfile *, const void *, unsigned int);
5152
void hashflush(struct hashfile *f);
5253
void crc32_begin(struct hashfile *);

‎read-cache.c

Lines changed: 78 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -2963,7 +2963,7 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
29632963

29642964
if (err) {
29652965
free(ieot);
2966-
return err;
2966+
goto cleanup;
29672967
}
29682968

29692969
offset = hashfile_total(f);
@@ -2992,8 +2992,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
29922992
hashwrite(f, sb.buf, sb.len);
29932993
strbuf_release(&sb);
29942994
free(ieot);
2995-
if (err)
2996-
return -1;
2995+
/*
2996+
* NEEDSWORK: write_index_ext_header() never returns a failure,
2997+
* and this part may want to be simplified.
2998+
*/
2999+
if (err) {
3000+
err = -1;
3001+
goto cleanup;
3002+
}
29973003
}
29983004

29993005
if (write_extensions & WRITE_SPLIT_INDEX_EXTENSION &&
@@ -3008,8 +3014,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30083014
sb.len) < 0;
30093015
hashwrite(f, sb.buf, sb.len);
30103016
strbuf_release(&sb);
3011-
if (err)
3012-
return -1;
3017+
/*
3018+
* NEEDSWORK: write_link_extension() never returns a failure,
3019+
* and this part may want to be simplified.
3020+
*/
3021+
if (err) {
3022+
err = -1;
3023+
goto cleanup;
3024+
}
30133025
}
30143026
if (write_extensions & WRITE_CACHE_TREE_EXTENSION &&
30153027
!drop_cache_tree && istate->cache_tree) {
@@ -3019,8 +3031,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30193031
err = write_index_ext_header(f, eoie_c, CACHE_EXT_TREE, sb.len) < 0;
30203032
hashwrite(f, sb.buf, sb.len);
30213033
strbuf_release(&sb);
3022-
if (err)
3023-
return -1;
3034+
/*
3035+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3036+
* and this part may want to be simplified.
3037+
*/
3038+
if (err) {
3039+
err = -1;
3040+
goto cleanup;
3041+
}
30243042
}
30253043
if (write_extensions & WRITE_RESOLVE_UNDO_EXTENSION &&
30263044
istate->resolve_undo) {
@@ -3031,8 +3049,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30313049
sb.len) < 0;
30323050
hashwrite(f, sb.buf, sb.len);
30333051
strbuf_release(&sb);
3034-
if (err)
3035-
return -1;
3052+
/*
3053+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3054+
* and this part may want to be simplified.
3055+
*/
3056+
if (err) {
3057+
err = -1;
3058+
goto cleanup;
3059+
}
30363060
}
30373061
if (write_extensions & WRITE_UNTRACKED_CACHE_EXTENSION &&
30383062
istate->untracked) {
@@ -3043,8 +3067,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30433067
sb.len) < 0;
30443068
hashwrite(f, sb.buf, sb.len);
30453069
strbuf_release(&sb);
3046-
if (err)
3047-
return -1;
3070+
/*
3071+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3072+
* and this part may want to be simplified.
3073+
*/
3074+
if (err) {
3075+
err = -1;
3076+
goto cleanup;
3077+
}
30483078
}
30493079
if (write_extensions & WRITE_FSMONITOR_EXTENSION &&
30503080
istate->fsmonitor_last_update) {
@@ -3054,12 +3084,25 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30543084
err = write_index_ext_header(f, eoie_c, CACHE_EXT_FSMONITOR, sb.len) < 0;
30553085
hashwrite(f, sb.buf, sb.len);
30563086
strbuf_release(&sb);
3057-
if (err)
3058-
return -1;
3087+
/*
3088+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3089+
* and this part may want to be simplified.
3090+
*/
3091+
if (err) {
3092+
err = -1;
3093+
goto cleanup;
3094+
}
30593095
}
30603096
if (istate->sparse_index) {
3061-
if (write_index_ext_header(f, eoie_c, CACHE_EXT_SPARSE_DIRECTORIES, 0) < 0)
3062-
return -1;
3097+
err = write_index_ext_header(f, eoie_c, CACHE_EXT_SPARSE_DIRECTORIES, 0);
3098+
/*
3099+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3100+
* and this part may want to be simplified.
3101+
*/
3102+
if (err) {
3103+
err = -1;
3104+
goto cleanup;
3105+
}
30633106
}
30643107

30653108
/*
@@ -3075,8 +3118,14 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30753118
err = write_index_ext_header(f, NULL, CACHE_EXT_ENDOFINDEXENTRIES, sb.len) < 0;
30763119
hashwrite(f, sb.buf, sb.len);
30773120
strbuf_release(&sb);
3078-
if (err)
3079-
return -1;
3121+
/*
3122+
* NEEDSWORK: write_index_ext_header() never returns a failure,
3123+
* and this part may want to be simplified.
3124+
*/
3125+
if (err) {
3126+
err = -1;
3127+
goto cleanup;
3128+
}
30803129
}
30813130

30823131
csum_fsync_flag = 0;
@@ -3085,13 +3134,16 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
30853134

30863135
finalize_hashfile(f, istate->oid.hash, FSYNC_COMPONENT_INDEX,
30873136
CSUM_HASH_IN_STREAM | csum_fsync_flag);
3137+
f = NULL;
30883138

30893139
if (close_tempfile_gently(tempfile)) {
3090-
error(_("could not close '%s'"), get_tempfile_path(tempfile));
3091-
return -1;
3140+
err = error(_("could not close '%s'"), get_tempfile_path(tempfile));
3141+
goto cleanup;
3142+
}
3143+
if (stat(get_tempfile_path(tempfile), &st)) {
3144+
err = error_errno(_("could not stat '%s'"), get_tempfile_path(tempfile));
3145+
goto cleanup;
30923146
}
3093-
if (stat(get_tempfile_path(tempfile), &st))
3094-
return -1;
30953147
istate->timestamp.sec = (unsigned int)st.st_mtime;
30963148
istate->timestamp.nsec = ST_MTIME_NSEC(st);
30973149
trace_performance_since(start, "write index, changed mask = %x", istate->cache_changed);
@@ -3106,6 +3158,11 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
31063158
istate->cache_nr);
31073159

31083160
return 0;
3161+
3162+
cleanup:
3163+
if (f)
3164+
discard_hashfile(f);
3165+
return err;
31093166
}
31103167

31113168
void set_alternate_index_output(const char *name)

‎t/t2107-update-index-basic.sh

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@ test_description='basic update-index tests
55
Tests for command-line parsing and basic operation.
66
'
77

8+
TEST_PASSES_SANITIZE_LEAK=true
89
. ./test-lib.sh
910

1011
test_expect_success 'update-index --nonsense fails' '

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