get_my_path_linux.c revision dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sys/types.h>
18#include <unistd.h>
19#include <limits.h>
20#include <stdio.h>
21
22void get_my_path(char exe[PATH_MAX])
23{
24    char proc[64];
25    snprintf(proc, sizeof proc, "/proc/%d/exe", getpid());
26    int err = readlink(proc, exe, PATH_MAX - 1);
27    if(err > 0) {
28        exe[err] = 0;
29    } else {
30        exe[0] = 0;
31    }
32}
33
34