LXR busybox/libbb/get_shell

   1/*
   2 * Copyright 2011, Denys Vlasenko
   3 *
   4 * Licensed under GPLv2, see file LICENSE in this source tree.
   5 */
   6
   7//kbuild:lib-y += get_shell_name.o
   8
   9#include "libbb.h"
  10
  11const char* FAST_FUNC get_shell_name(void)
  12{
  13        struct passwd *pw;
  14        char *shell;
  15
  16        shell = getenv("SHELL");
  17        if (shell && shell[0])
  18                return shell;
  19
  20        pw = getpwuid(getuid());
  21        if (pw && pw->pw_shell && pw->pw_shell[0])
  22                return pw->pw_shell;
  23
  24        return DEFAULT_SHELL;
  25}
  26