This fixes common problems in these code about error handling,
forgetting to close the file handle after fprintf() fails, or not
printing out the error string..
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
builtin/branch.c | 4 +---
builtin/init-db.c | 7 +------
daemon.c | 11 +----------
submodule.c | 9 ++-------
transport.c | 8 +++-----
5 files changed, 8 insertions(+), 31 deletions(-)
diff --git a/builtin/branch.c b/builtin/branch.c
index 9e4666f..a8b79bf 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -761,7 +761,6 @@ static const char edit_description[] = "BRANCH_DESCRIPTION";
static int edit_branch_description(const char *branch_name)
{
- FILE *fp;
int status;
struct strbuf buf = STRBUF_INIT;
struct strbuf name = STRBUF_INIT;
@@ -774,8 +773,7 @@ static int edit_branch_description(const char *branch_name)
" %s\n"
"Lines starting with '%c' will be stripped.\n",
branch_name, comment_line_char);
- fp = fopen(git_path(edit_description), "w");
- if ((fwrite(buf.buf, 1, buf.len, fp) < buf.len) || fclose(fp)) {
+ if (write_file(git_path(edit_description), 0, "%s", buf.buf)) {
strbuf_release(&buf);
return error(_("could not write branch description template: %s"),
strerror(errno));
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 587a505..6b7fa5f 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -342,7 +342,6 @@ int set_git_dir_init(const char *git_dir, const char *real_git_dir,
static void separate_git_dir(const char *git_dir)
{
struct stat st;
- FILE *fp;
if (!stat(git_link, &st)) {
const char *src;
@@ -358,11 +357,7 @@ static void separate_git_dir(const char *git_dir)
die_errno(_("unable to move %s to %s"), src, git_dir);
}
- fp = fopen(git_link, "w");
- if (!fp)
- die(_("Could not create git link %s"), git_link);
- fprintf(fp, "gitdir: %s\n", git_dir);
- fclose(fp);
+ write_file(git_link, 1, "gitdir: %s\n", git_dir);
}
int init_db(const char *template_dir, unsigned int flags)
diff --git a/daemon.c b/daemon.c
index 4dcfff9..8420fdb 100644
--- a/daemon.c
+++ b/daemon.c
@@ -1073,15 +1073,6 @@ static struct credentials *prepare_credentials(const char *user_name,
}
#endif
-static void store_pid(const char *path)
-{
- FILE *f = fopen(path, "w");
- if (!f)
- die_errno("cannot open pid file '%s'", path);
- if (fprintf(f, "%"PRIuMAX"\n", (uintmax_t) getpid()) < 0 || fclose(f) != 0)
- die_errno("failed to write pid file '%s'", path);
-}
-
static int serve(struct string_list *listen_addr, int listen_port,
struct credentials *cred)
{
@@ -1292,7 +1283,7 @@ int main(int argc, char **argv)
sanitize_stdfds();
if (pid_file)
- store_pid(pid_file);
+ write_file(pid_file, 1, "%"PRIuMAX"\n", (uintmax_t) getpid());
/* prepare argv for serving-processes */
cld_argv = xmalloc(sizeof (char *) * (argc + 2));
diff --git a/submodule.c b/submodule.c
index 0690dc5..34094f5 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1102,16 +1102,11 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
struct strbuf file_name = STRBUF_INIT;
struct strbuf rel_path = STRBUF_INIT;
const char *real_work_tree = xstrdup(real_path(work_tree));
- FILE *fp;
/* Update gitfile */
strbuf_addf(&file_name, "%s/.git", work_tree);
- fp = fopen(file_name.buf, "w");
- if (!fp)
- die(_("Could not create git link %s"), file_name.buf);
- fprintf(fp, "gitdir: %s\n", relative_path(git_dir, real_work_tree,
- &rel_path));
- fclose(fp);
+ write_file(file_name.buf, 1, "gitdir: %s\n",
+ relative_path(git_dir, real_work_tree, &rel_path));
/* Update core.worktree setting */
strbuf_reset(&file_name);
diff --git a/transport.c b/transport.c
index 7388bb8..0bb15ee 100644
--- a/transport.c
+++ b/transport.c
@@ -282,7 +282,6 @@ static int write_one_ref(const char *name, const unsigned char *sha1,
{
struct strbuf *buf = data;
int len = buf->len;
- FILE *f;
/* when called via for_each_ref(), flags is non-zero */
if (flags && !starts_with(name, "refs/heads/") &&
@@ -291,10 +290,9 @@ static int write_one_ref(const char *name, const unsigned char *sha1,
strbuf_addstr(buf, name);
if (safe_create_leading_directories(buf->buf) ||
- !(f = fopen(buf->buf, "w")) ||
- fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
- fclose(f))
- return error("problems writing temporary file %s", buf->buf);
+ write_file(buf->buf, 0, "%s\n", sha1_to_hex(sha1)))
+ return error("problems writing temporary file %s: %s",
+ buf->buf, strerror(errno));
strbuf_setlen(buf, len);
return 0;
}
--
2.1.0.rc0.78.gc0d8480
--
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