u-tools/apps/adb/get_my_path_linux.c

   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
  22 void 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