| Denys Vlasenko | f8416dc | 2011-03-08 21:02:42 +0100 | [diff] [blame] | 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 | |
| Denys Vlasenko | fd77ea5 | 2012-10-03 09:42:21 +0200 | [diff] [blame] | 11 | const char* FAST_FUNC get_shell_name(void) |
| Denys Vlasenko | f8416dc | 2011-03-08 21:02:42 +0100 | [diff] [blame] | 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 | } |