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Diffstat (limited to 'builtin/gc.c')
-rw-r--r--builtin/gc.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/builtin/gc.c b/builtin/gc.c
index 2daede7..91f7696 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -232,7 +232,7 @@ static int need_to_gc(void)
static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
{
static struct lock_file lock;
- char my_host[128];
+ char my_host[HOST_NAME_MAX + 1];
struct strbuf sb = STRBUF_INIT;
struct stat st;
uintmax_t pid;
@@ -244,15 +244,19 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
/* already locked */
return NULL;
- if (gethostname(my_host, sizeof(my_host)))
+ if (xgethostname(my_host, sizeof(my_host)))
xsnprintf(my_host, sizeof(my_host), "unknown");
pidfile_path = git_pathdup("gc.pid");
fd = hold_lock_file_for_update(&lock, pidfile_path,
LOCK_DIE_ON_ERROR);
if (!force) {
- static char locking_host[128];
+ static char locking_host[HOST_NAME_MAX + 1];
+ static char *scan_fmt;
int should_exit;
+
+ if (!scan_fmt)
+ scan_fmt = xstrfmt("%s %%%dc", "%"SCNuMAX, HOST_NAME_MAX);
fp = fopen(pidfile_path, "r");
memset(locking_host, 0, sizeof(locking_host));
should_exit =
@@ -268,7 +272,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
* running.
*/
time(NULL) - st.st_mtime <= 12 * 3600 &&
- fscanf(fp, "%"SCNuMAX" %127c", &pid, locking_host) == 2 &&
+ fscanf(fp, scan_fmt, &pid, locking_host) == 2 &&
/* be gentle to concurrent "gc" on remote hosts */
(strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM);
if (fp != NULL)