int get_pid_binary_path()

in helpers/uprobe_helpers.c [24:46]

• 21 lines of code
• 4 McCabe index (conditional complexity)

int get_pid_binary_path(pid_t pid, char *path, size_t path_sz)
{
	ssize_t ret;
	char proc_pid_exe[32];

	if (snprintf(proc_pid_exe, sizeof(proc_pid_exe), "/proc/%d/exe", pid)
	    >= sizeof(proc_pid_exe)) {
		warn("snprintf /proc/PID/exe failed");
		return -1;
	}
	ret = readlink(proc_pid_exe, path, path_sz);
	if (ret < 0) {
		warn("No such pid %d\n", pid);
		return -1;
	}
	if (ret >= path_sz) {
		warn("readlink truncation");
		return -1;
	}
	path[ret] = '\0';

	return 0;
}