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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2014-11-30 08:24:27 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-12-01 19:00:10 (GMT)
commitdcf692625ac569fefbe52269061230f4fde10e47 (patch)
treea56beac7a3de4c6bd8557288f802fc28738b52a4 /builtin
parent4ef9caf5431dbbd23f240a25b69a989aeb9840a4 (diff)
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path.c: make get_pathname() call sites return const char *
Before the previous commit, get_pathname returns an array of PATH_MAX length. Even if git_path() and similar functions does not use the whole array, git_path() caller can, in theory. After the commit, get_pathname() may return a buffer that has just enough room for the returned string and git_path() caller should never write beyond that. Make git_path(), mkpath() and git_path_submodule() return a const buffer to make sure callers do not write in it at all. This could have been part of the previous commit, but the "const" conversion is too much distraction from the core changes in path.c. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r--builtin/checkout.c2
-rw-r--r--builtin/clone.c9
-rw-r--r--builtin/fetch.c5
-rw-r--r--builtin/fsck.c4
-rw-r--r--builtin/receive-pack.c2
-rw-r--r--builtin/remote.c2
-rw-r--r--builtin/repack.c8
7 files changed, 18 insertions, 14 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 5410dac..c600ec1 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -589,7 +589,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
if (opts->new_branch_log && !log_all_ref_updates) {
int temp;
char log_file[PATH_MAX];
- char *ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
+ const char *ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
temp = log_all_ref_updates;
log_all_ref_updates = 1;
diff --git a/builtin/clone.c b/builtin/clone.c
index d5e7532..a9af3f2 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -290,16 +290,17 @@ static void copy_alternates(struct strbuf *src, struct strbuf *dst,
struct strbuf line = STRBUF_INIT;
while (strbuf_getline(&line, in, '\n') != EOF) {
- char *abs_path, abs_buf[PATH_MAX];
+ char *abs_path;
if (!line.len || line.buf[0] == '#')
continue;
if (is_absolute_path(line.buf)) {
add_to_alternates_file(line.buf);
continue;
}
- abs_path = mkpath("%s/objects/%s", src_repo, line.buf);
- normalize_path_copy(abs_buf, abs_path);
- add_to_alternates_file(abs_buf);
+ abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf);
+ normalize_path_copy(abs_path, abs_path);
+ add_to_alternates_file(abs_path);
+ free(abs_path);
}
strbuf_release(&line);
fclose(in);
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 7b84d35..cb54936 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -587,7 +587,8 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
struct strbuf note = STRBUF_INIT;
const char *what, *kind;
struct ref *rm;
- char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
+ char *url;
+ const char *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
int want_status;
fp = fopen(filename, "a");
@@ -821,7 +822,7 @@ static void check_not_current_branch(struct ref *ref_map)
static int truncate_fetch_head(void)
{
- char *filename = git_path("FETCH_HEAD");
+ const char *filename = git_path("FETCH_HEAD");
FILE *fp = fopen(filename, "w");
if (!fp)
diff --git a/builtin/fsck.c b/builtin/fsck.c
index a27515a..b92aeff 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -225,12 +225,12 @@ static void check_unreachable_object(struct object *obj)
printf("dangling %s %s\n", typename(obj->type),
sha1_to_hex(obj->sha1));
if (write_lost_and_found) {
- char *filename = git_path("lost-found/%s/%s",
+ const char *filename = git_path("lost-found/%s/%s",
obj->type == OBJ_COMMIT ? "commit" : "other",
sha1_to_hex(obj->sha1));
FILE *f;
- if (safe_create_leading_directories(filename)) {
+ if (safe_create_leading_directories_const(filename)) {
error("Could not create lost-found");
return;
}
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 32fc540..3b8f420 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -869,7 +869,7 @@ static void run_update_post_hook(struct command *commands)
int argc;
const char **argv;
struct child_process proc = CHILD_PROCESS_INIT;
- char *hook;
+ const char *hook;
hook = find_hook("post-update");
for (argc = 0, cmd = commands; cmd; cmd = cmd->next) {
diff --git a/builtin/remote.c b/builtin/remote.c
index 7f28f92..4ce396f 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -582,7 +582,7 @@ static int migrate_file(struct remote *remote)
{
struct strbuf buf = STRBUF_INIT;
int i;
- char *path = NULL;
+ const char *path = NULL;
strbuf_addf(&buf, "remote.%s.url", remote->name);
for (i = 0; i < remote->url_nr; i++)
diff --git a/builtin/repack.c b/builtin/repack.c
index 2845620..9c04e1d 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -284,7 +284,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
failed = 0;
for_each_string_list_item(item, &names) {
for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
- char *fname, *fname_old;
+ const char *fname_old;
+ char *fname;
fname = mkpathdup("%s/pack-%s%s", packdir,
item->string, exts[ext].name);
if (!file_exists(fname)) {
@@ -312,7 +313,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
if (failed) {
struct string_list rollback_failure = STRING_LIST_INIT_DUP;
for_each_string_list_item(item, &rollback) {
- char *fname, *fname_old;
+ const char *fname_old;
+ char *fname;
fname = mkpathdup("%s/%s", packdir, item->string);
fname_old = mkpath("%s/old-%s", packdir, item->string);
if (rename(fname_old, fname))
@@ -365,7 +367,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
/* Remove the "old-" files */
for_each_string_list_item(item, &names) {
for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
- char *fname;
+ const char *fname;
fname = mkpath("%s/old-%s%s",
packdir,
item->string,