Last change
on this file since 3040 was 1765, checked in by Bruno Cornec, 17 years ago |
Update to busybox 1.7.2
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-
Property svn:eol-style
set to
native
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File size:
1.5 KB
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[1765] | 1 | /* printenv -- minimal clone of BSD printenv(1).
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| 2 |
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| 3 | usage: printenv [varname]
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| 4 |
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| 5 | Chet Ramey
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| 6 | chet@po.cwru.edu
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| 7 | */
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| 8 |
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| 9 | /* Copyright (C) 1997-2002 Free Software Foundation, Inc.
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| 10 |
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| 11 | This file is part of GNU Bash, the Bourne Again SHell.
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| 12 |
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| 13 | Bash is free software; you can redistribute it and/or modify it under
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| 14 | the terms of the GNU General Public License as published by the Free
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| 15 | Software Foundation; either version 2, or (at your option) any later
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| 16 | version.
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| 17 |
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| 18 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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| 19 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 20 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 21 | for more details.
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| 22 |
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| 23 | You should have received a copy of the GNU General Public License along
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| 24 | with Bash; see the file COPYING. If not, write to the Free Software
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| 25 | Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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| 26 |
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| 27 | #include <stdlib.h>
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| 28 | #include <string.h>
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| 29 |
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| 30 | extern char **environ;
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| 31 |
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| 32 | int
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| 33 | main (argc, argv)
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| 34 | int argc;
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| 35 | char **argv;
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| 36 | {
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| 37 | register char **envp, *eval;
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| 38 | int len;
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| 39 |
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| 40 | argv++;
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| 41 | argc--;
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| 42 |
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| 43 | /* printenv */
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| 44 | if (argc == 0)
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| 45 | {
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| 46 | for (envp = environ; *envp; envp++)
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| 47 | puts (*envp);
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| 48 | exit (0);
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| 49 | }
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| 50 |
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| 51 | /* printenv varname */
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| 52 | len = strlen (*argv);
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| 53 | for (envp = environ; *envp; envp++)
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| 54 | {
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| 55 | if (**argv == **envp && strncmp (*envp, *argv, len) == 0)
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| 56 | {
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| 57 | eval = *envp + len;
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| 58 | /* If the environment variable doesn't have an `=', ignore it. */
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| 59 | if (*eval == '=')
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| 60 | {
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| 61 | puts (eval + 1);
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| 62 | exit (0);
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| 63 | }
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| 64 | }
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| 65 | }
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| 66 | exit (1);
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| 67 | }
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