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------------------------------------------------------------------------ r15465 | aldot | 2006-06-21 20:48:06 +0200 (Wed, 21 Jun 2006) | 3 lines - use CONFIG_BUSYBOX_EXEC_PATH as before it one was broken by a recent revert. - use xchdir() since all is invain if it fails there anyways, supposedly ------------------------------------------------------------------------ r15466 | aldot | 2006-06-21 20:55:16 +0200 (Wed, 21 Jun 2006) | 2 lines - adjust docs to take CONFIG_BUSYBOX_EXEC_PATH into account. ------------------------------------------------------------------------ r15467 | aldot | 2006-06-21 21:31:24 +0200 (Wed, 21 Jun 2006) | 18 lines - partial fallout of my TREE_USED touchup against gcc-4.2: rip unused vars, save s 144 bytes text data bss dec hex filename 862434 10156 645924 1518514 172bb2 busybox.old 862322 10156 645892 1518370 172b22 busybox function old new delta z_len 4 - -4 textend 4 - -4 part_nb 4 - -4 insize 4 - -4 ifile_size 4 - -4 do_link 4 - -4 new_text 70 60 -10 ipaddr_list_link 33 23 -10 gzip_main 898 822 -76 ------------------------------------------------------------------------------ (add/remove: 0/6 grow/shrink: 0/3 up/down: 0/-120) Total: -120 bytes ------------------------------------------------------------------------ r15468 | aldot | 2006-06-21 21:43:05 +0200 (Wed, 21 Jun 2006) | 19 lines - remove useless global exports function old new delta rpm_main 940 1601 +661 rpm_getstring 107 112 +5 rpm_getint 148 153 +5 loop_through_files 103 106 +3 fileaction_dobackup 115 113 -2 fileaction_list 5 - -5 rpm_getcount 42 - -42 extract_cpio_gz 161 - -161 rpm_gettags 504 - -504 ------------------------------------------------------------------------------ (add/remove: 0/4 grow/shrink: 4/1 up/down: 674/-714) Total: -40 bytes text data bss dec hex filename 862322 10156 645892 1518370 172b22 busybox.old 862290 10156 645892 1518338 172b02 busybox ------------------------------------------------------------------------ r15555 | aldot | 2006-06-30 14:10:11 +0200 (Fri, 30 Jun 2006) | 22 lines - shrink syslog a little bit, move a big buffer (for 'line') off the bss, fold s emaphore stuff into single caller manually. stats: function old new delta logMessage 395 427 +32 message 1245 1257 +12 opts - 4 +4 small 1 - -1 local_logging 4 - -4 doRemoteLog 4 - -4 circular_logging 4 - -4 syslogd_main 1299 1285 -14 static.res 36 16 -20 .rodata 186650 186586 -64 static.line 1025 - -1025 ------------------------------------------------------------------------------ (add/remove: 1/5 grow/shrink: 2/3 up/down: 48/-1136) Total: -1088 bytes cow@s37:~/src/busybox_scratch$ size sysklogd/syslogd.o{.orig,} text data bss dec hex filename 3723 348 5242 9313 2461 sysklogd/syslogd.o.orig 3697 348 4188 8233 2029 sysklogd/syslogd.o ============================================================================== Overall bloatcheck for the changeset mentioned above: function old new delta rpm_main 953 1608 +655 logMessage 395 427 +32 message 1245 1257 +12 opts - 4 +4 rpm_getstring 107 110 +3 rpm_getint 148 151 +3 loop_through_files 103 104 +1 small 1 - -1 fileaction_dobackup 115 113 -2 z_len 4 - -4 textend 4 - -4 part_nb 4 - -4 local_logging 4 - -4 insize 4 - -4 ifile_size 4 - -4 do_link 4 - -4 doRemoteLog 4 - -4 circular_logging 4 - -4 fileaction_list 5 - -5 new_text 70 60 -10 ipaddr_list_link 33 23 -10 clear_bufs 31 21 -10 syslogd_main 1287 1273 -14 builtin_help 190 176 -14 static.res 36 16 -20 builtin_source 229 199 -30 rpm_getcount 42 - -42 gzip_main 842 786 -56 .rodata 227176 227112 -64 lash_main 609 527 -82 busy_loop 3883 3739 -144 extract_cpio_gz 155 - -155 rpm_gettags 501 - -501 static.line 1025 - -1025 ------------------------------------------------------------------------------ (add/remove: 1/15 grow/shrink: 6/12 up/down: 710/-2221) Total: -1511 bytes
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* env implementation for busybox
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*
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* Copyright (c) 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*
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* Original copyright notice is retained at the end of this file.
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*
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* Modified for BusyBox by Erik Andersen <andersen@codepoet.org>
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*/
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/* BB_AUDIT SUSv3 compliant */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/env.html */
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/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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*
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* Fixed bug involving exit return codes if execvp fails. Also added
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* output error checking.
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*/
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/*
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* Modified by Vladimir Oleynik <dzo@simtreas.ru> (C) 2003
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* - correct "-" option usage
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* - multiple "-u unsetenv" support
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* - GNU long option support
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* - use bb_default_error_retval
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*/
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#include "busybox.h"
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#include <errno.h>
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#include <getopt.h> /* struct option */
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#if ENABLE_FEATURE_ENV_LONG_OPTIONS
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static const struct option env_long_options[] = {
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{ "ignore-environment", 0, NULL, 'i' },
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{ "unset", 1, NULL, 'u' },
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{ 0, 0, 0, 0 }
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};
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#endif
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int env_main(int argc, char** argv)
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{
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static char *cleanenv[1] = { NULL };
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char **ep;
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unsigned long opt;
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llist_t *unset_env = NULL;
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extern char **environ;
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bb_opt_complementally = "u::";
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#if ENABLE_FEATURE_ENV_LONG_OPTIONS
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bb_applet_long_options = env_long_options;
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#endif
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opt = bb_getopt_ulflags(argc, argv, "+iu:", &unset_env);
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argv += optind;
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if (*argv && (argv[0][0] == '-') && !argv[0][1]) {
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opt |= 1;
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++argv;
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}
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if(opt & 1)
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environ = cleanenv;
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else if(opt & 2) {
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while(unset_env) {
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unsetenv(unset_env->data);
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unset_env = unset_env->link;
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}
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}
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while (*argv && (strchr(*argv, '=') != NULL)) {
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if (putenv(*argv) < 0) {
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bb_perror_msg_and_die("putenv");
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}
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++argv;
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}
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if (*argv) {
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execvp(*argv, argv);
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/* SUSv3-mandated exit codes. */
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bb_default_error_retval = (errno == ENOENT) ? 127 : 126;
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bb_perror_msg_and_die("%s", *argv);
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}
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for (ep = environ; *ep; ep++) {
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puts(*ep);
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}
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bb_fflush_stdout_and_exit(0);
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}
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/*
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* Copyright (c) 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
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*
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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