- int s = sprintf(keep_arg,
- "--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid());
- if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
- strcpy(keep_arg + s, "localhost");
- *av++ = keep_arg;
+ char hostname[256];
+ if (gethostname(hostname, sizeof(hostname)))
+ xsnprintf(hostname, sizeof(hostname), "localhost");
+ argv_array_pushf(&cmd.args,
+ "--keep=fetch-pack %"PRIuMAX " on %s",
+ (uintmax_t)getpid(), hostname);