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authorJunio C Hamano <gitster@pobox.com>2017-02-27 21:57:16 (GMT)
committerJunio C Hamano <gitster@pobox.com>2017-02-27 21:57:16 (GMT)
commit74a772774d114f57fb95ae1242953f161333bac6 (patch)
tree95731221fe0527299650118b238d9c345057e34d /builtin/show-branch.c
parentace83dc26a13ada8f6b2c011b01fc0ae9e48b86f (diff)
parentd3cc5f4c44eeacca556f9ae0972837a84e72f288 (diff)
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Merge branch 'jk/show-branch-lift-name-len-limit'
"git show-branch" expected there were only very short branch names in the repository and used a fixed-length buffer to hold them without checking for overflow. * jk/show-branch-lift-name-len-limit: show-branch: use skip_prefix to drop magic numbers show-branch: store resolved head in heap buffer show-branch: drop head_len variable
Diffstat (limited to 'builtin/show-branch.c')
-rw-r--r--builtin/show-branch.c42
1 files changed, 13 insertions, 29 deletions
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 974f340..1975659 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -275,8 +275,7 @@ static void show_one_commit(struct commit *commit, int no_name)
pp_commit_easy(CMIT_FMT_ONELINE, commit, &pretty);
pretty_str = pretty.buf;
}
- if (starts_with(pretty_str, "[PATCH] "))
- pretty_str += 8;
+ skip_prefix(pretty_str, "[PATCH] ", &pretty_str);
if (!no_name) {
if (name && name->head_name) {
@@ -470,18 +469,14 @@ static void snarf_refs(int head, int remotes)
}
}
-static int rev_is_head(char *head, int headlen, char *name,
+static int rev_is_head(const char *head, const char *name,
unsigned char *head_sha1, unsigned char *sha1)
{
- if ((!head[0]) ||
- (head_sha1 && sha1 && hashcmp(head_sha1, sha1)))
+ if (!head || (head_sha1 && sha1 && hashcmp(head_sha1, sha1)))
return 0;
- if (starts_with(head, "refs/heads/"))
- head += 11;
- if (starts_with(name, "refs/heads/"))
- name += 11;
- else if (starts_with(name, "heads/"))
- name += 6;
+ skip_prefix(head, "refs/heads/", &head);
+ if (!skip_prefix(name, "refs/heads/", &name))
+ skip_prefix(name, "heads/", &name);
return !strcmp(head, name);
}
@@ -620,9 +615,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
int all_heads = 0, all_remotes = 0;
int all_mask, all_revs;
enum rev_sort_order sort_order = REV_SORT_IN_GRAPH_ORDER;
- char head[128];
- const char *head_p;
- int head_len;
+ char *head;
struct object_id head_oid;
int merge_base = 0;
int independent = 0;
@@ -787,32 +780,24 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
snarf_refs(all_heads, all_remotes);
}
- head_p = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
- head_oid.hash, NULL);
- if (head_p) {
- head_len = strlen(head_p);
- memcpy(head, head_p, head_len + 1);
- }
- else {
- head_len = 0;
- head[0] = 0;
- }
+ head = resolve_refdup("HEAD", RESOLVE_REF_READING,
+ head_oid.hash, NULL);
- if (with_current_branch && head_p) {
+ if (with_current_branch && head) {
int has_head = 0;
for (i = 0; !has_head && i < ref_name_cnt; i++) {
/* We are only interested in adding the branch
* HEAD points at.
*/
if (rev_is_head(head,
- head_len,
ref_name[i],
head_oid.hash, NULL))
has_head++;
}
if (!has_head) {
- int offset = starts_with(head, "refs/heads/") ? 11 : 0;
- append_one_rev(head + offset);
+ const char *name = head;
+ skip_prefix(name, "refs/heads/", &name);
+ append_one_rev(name);
}
}
@@ -866,7 +851,6 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
for (i = 0; i < num_rev; i++) {
int j;
int is_head = rev_is_head(head,
- head_len,
ref_name[i],
head_oid.hash,
rev[i]->object.oid.hash);