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Port over the last of the tinylogin applets

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-Erik
This commit is contained in:
Eric Andersen
2002-06-23 04:24:25 +00:00
parent 0fbff134f4
commit 27f64e1f4e
26 changed files with 1722 additions and 258 deletions
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81
libbb/run_shell.c Normal file
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/* vi: set sw=4 ts=4: */
/*
* Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <syslog.h>
#include <ctype.h>
#include "libbb.h"
/* Run SHELL, or DEFAULT_SHELL if SHELL is empty.
If COMMAND is nonzero, pass it to the shell with the -c option.
If ADDITIONAL_ARGS is nonzero, pass it to the shell as more
arguments. */
void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args )
{
const char **args;
int argno = 1;
int additional_args_cnt = 0;
for ( args = additional_args; args && *args; args++ )
additional_args_cnt++;
if ( additional_args )
args = (const char **) xmalloc (sizeof (char *) * ( 4 + additional_args_cnt ));
else
args = (const char **) xmalloc (sizeof (char *) * 4 );
args [0] = get_last_path_component ( xstrdup ( shell ));
if ( loginshell ) {
char *args0 = xmalloc ( xstrlen ( args [0] ) + 2 );
args0 [0] = '-';
strcpy ( args0 + 1, args [0] );
args [0] = args0;
}
if ( command ) {
args [argno++] = "-c";
args [argno++] = command;
}
if ( additional_args ) {
for ( ; *additional_args; ++additional_args )
args [argno++] = *additional_args;
}
args [argno] = 0;
execv ( shell, (char **) args );
perror_msg_and_die ( "cannot run %s", shell );
}