d591a360d3
------------------------------------------------------------------------
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
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Rexec program for system have fork() as vfork() with foreground option
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*
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* Copyright (C) Vladimir N. Oleynik <dzo@simtreas.ru>
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* Copyright (C) 2003 Russ Dill <Russ.Dill@asu.edu>
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*
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* daemon() portion taken from uClibc:
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*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Modified for uClibc by Erik Andersen <andersee@debian.org>
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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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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <paths.h>
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#include "libbb.h"
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#ifdef BB_NOMMU
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void vfork_daemon_rexec(int nochdir, int noclose,
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int argc, char **argv, char *foreground_opt)
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{
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int fd;
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char **vfork_args;
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int a = 0;
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setsid();
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if (!nochdir)
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xchdir("/");
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if (!noclose && (fd = open(bb_dev_null, O_RDWR, 0)) != -1) {
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dup2(fd, STDIN_FILENO);
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dup2(fd, STDOUT_FILENO);
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dup2(fd, STDERR_FILENO);
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if (fd > 2)
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close(fd);
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}
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vfork_args = xcalloc(sizeof(char *), argc + 3);
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vfork_args[a++] = CONFIG_BUSYBOX_EXEC_PATH;
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while(*argv) {
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vfork_args[a++] = *argv;
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argv++;
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}
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vfork_args[a] = foreground_opt;
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switch (vfork()) {
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case 0: /* child */
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/* Make certain we are not a session leader, or else we
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* might reacquire a controlling terminal */
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if (vfork())
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_exit(0);
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execv(vfork_args[0], vfork_args);
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bb_perror_msg_and_die("execv %s", vfork_args[0]);
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case -1: /* error */
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bb_perror_msg_and_die("vfork");
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default: /* parent */
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exit(0);
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}
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}
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#endif /* BB_NOMMU */
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