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author | nobody <nobody@localhost> | 2004-10-13 09:42:10 +0000 |
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committer | nobody <nobody@localhost> | 2004-10-13 09:42:10 +0000 |
commit | 8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373 (patch) | |
tree | 1826706cd4fd009fcd14f4f8021005ec8ec0fa59 /busybox/coreutils/env.c | |
download | busybox-w32-8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373.tar.gz busybox-w32-8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373.tar.bz2 busybox-w32-8c59a0bf0e9e2d87b0ff273ea3f0bf05bbbf6373.zip |
This commit was manufactured by cvs2svn to create tag 'busybox_1_00'.
Diffstat (limited to 'busybox/coreutils/env.c')
-rw-r--r-- | busybox/coreutils/env.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/busybox/coreutils/env.c b/busybox/coreutils/env.c new file mode 100644 index 000000000..87ab30cdd --- /dev/null +++ b/busybox/coreutils/env.c | |||
@@ -0,0 +1,144 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * env implementation for busybox | ||
4 | * | ||
5 | * Copyright (c) 1988, 1993, 1994 | ||
6 | * The Regents of the University of California. All rights reserved. | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public License | ||
19 | * along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 | * | ||
22 | * Original copyright notice is retained at the end of this file. | ||
23 | * | ||
24 | * Modified for BusyBox by Erik Andersen <andersen@codepoet.org> | ||
25 | */ | ||
26 | |||
27 | /* BB_AUDIT SUSv3 compliant */ | ||
28 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/env.html */ | ||
29 | |||
30 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) | ||
31 | * | ||
32 | * Fixed bug involving exit return codes if execvp fails. Also added | ||
33 | * output error checking. | ||
34 | */ | ||
35 | |||
36 | /* | ||
37 | * Modified by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003 | ||
38 | * - correct "-" option usage | ||
39 | * - multiple "-u unsetenv" support | ||
40 | * - GNU long option support | ||
41 | * - save errno after exec failed before bb_perror_msg() | ||
42 | */ | ||
43 | |||
44 | |||
45 | #include <stdio.h> | ||
46 | #include <string.h> | ||
47 | #include <stdlib.h> | ||
48 | #include <errno.h> | ||
49 | #include <unistd.h> | ||
50 | #include <getopt.h> | ||
51 | #include "busybox.h" | ||
52 | |||
53 | |||
54 | static const struct option env_long_options[] = { | ||
55 | { "ignore-environment", 0, NULL, 'i' }, | ||
56 | { "unset", 1, NULL, 'u' }, | ||
57 | { 0, 0, 0, 0 } | ||
58 | }; | ||
59 | |||
60 | extern int env_main(int argc, char** argv) | ||
61 | { | ||
62 | char **ep, *p; | ||
63 | char *cleanenv[1] = { NULL }; | ||
64 | unsigned long opt; | ||
65 | llist_t *unset_env = NULL; | ||
66 | extern char **environ; | ||
67 | |||
68 | bb_opt_complementaly = "u*"; | ||
69 | bb_applet_long_options = env_long_options; | ||
70 | |||
71 | opt = bb_getopt_ulflags(argc, argv, "+iu:", &unset_env); | ||
72 | |||
73 | argv += optind; | ||
74 | if (*argv && (argv[0][0] == '-') && !argv[0][1]) { | ||
75 | opt |= 1; | ||
76 | ++argv; | ||
77 | } | ||
78 | |||
79 | if(opt & 1) | ||
80 | environ = cleanenv; | ||
81 | else if(opt & 2) { | ||
82 | while(unset_env) { | ||
83 | unsetenv(unset_env->data); | ||
84 | unset_env = unset_env->link; | ||
85 | } | ||
86 | } | ||
87 | |||
88 | while (*argv && ((p = strchr(*argv, '=')) != NULL)) { | ||
89 | if (putenv(*argv) < 0) { | ||
90 | bb_perror_msg_and_die("putenv"); | ||
91 | } | ||
92 | ++argv; | ||
93 | } | ||
94 | |||
95 | if (*argv) { | ||
96 | int er; | ||
97 | |||
98 | execvp(*argv, argv); | ||
99 | er = errno; | ||
100 | bb_perror_msg("%s", *argv); /* Avoid multibyte problems. */ | ||
101 | return (er == ENOENT) ? 127 : 126; /* SUSv3-mandated exit codes. */ | ||
102 | } | ||
103 | |||
104 | for (ep = environ; *ep; ep++) { | ||
105 | puts(*ep); | ||
106 | } | ||
107 | |||
108 | bb_fflush_stdout_and_exit(0); | ||
109 | } | ||
110 | |||
111 | /* | ||
112 | * Copyright (c) 1988, 1993, 1994 | ||
113 | * The Regents of the University of California. All rights reserved. | ||
114 | * | ||
115 | * Redistribution and use in source and binary forms, with or without | ||
116 | * modification, are permitted provided that the following conditions | ||
117 | * are met: | ||
118 | * 1. Redistributions of source code must retain the above copyright | ||
119 | * notice, this list of conditions and the following disclaimer. | ||
120 | * 2. Redistributions in binary form must reproduce the above copyright | ||
121 | * notice, this list of conditions and the following disclaimer in the | ||
122 | * documentation and/or other materials provided with the distribution. | ||
123 | * | ||
124 | * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change | ||
125 | * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change> | ||
126 | * | ||
127 | * 4. Neither the name of the University nor the names of its contributors | ||
128 | * may be used to endorse or promote products derived from this software | ||
129 | * without specific prior written permission. | ||
130 | * | ||
131 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
132 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
133 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
134 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
135 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
136 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
137 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
138 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
139 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
140 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
141 | * SUCH DAMAGE. | ||
142 | */ | ||
143 | |||
144 | |||