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/*
Unix SMB/Netbios implementation.
Version 2.0
SMB wrapper functions - frontend
Copyright (C) Andrew Tridgell 1998
Copyright (C) Derrell Lipman 2003-2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include <libsmbclient.h>
#ifndef FALSE
# define FALSE (0)
# define TRUE (! FALSE)
#endif
static void smbsh_usage(void)
{
printf("smbsh [options] [command [args] ...]\n\n");
printf(" -p prepend library name\n");
printf(" -a append library name\n");
printf(" -n");
printf(" -W workgroup\n");
printf(" -U username\n");
printf(" -P prefix\n");
printf(" -R resolve order\n");
printf(" -d debug level\n");
printf(" -l logfile\n");
printf(" -L libdir\n");
exit(0);
}
int main(int argc, char *argv[])
{
char *p, *u;
char *libd = ".";
char line[PATH_MAX], pre[PATH_MAX], post[PATH_MAX];
int opt;
int no_ask = 0;
struct stat statbuf;
extern char *optarg;
extern int optind;
*pre = *post = '\0';
while ((opt = getopt(argc, argv, "p:a:d:nL:W:U:h")) != -1) {
switch (opt) {
case 'p': /* prepend library before smbwrapper.so */
if (*pre != '\0')
strncat(pre, " ", PATH_MAX - strlen(pre));
strncat(pre, optarg, PATH_MAX - strlen(pre));
break;
case 'a': /* append library after smbwrapper.so */
strncat(post, " ", PATH_MAX - strlen(post));
strncat(post, optarg, PATH_MAX - strlen(post));
break;
case 'd':
setenv("DEBUG", optarg, TRUE);
break;
case 'n': /* don't ask for username/password */
no_ask++;
break;
case 'L':
libd = optarg;
break;
case 'W':
setenv("WORKGROUP", optarg, TRUE);
break;
case 'U':
p = strchr(optarg,'%');
if (p) {
*p=0;
setenv("PASSWORD", p+1, TRUE);
}
setenv("USER", optarg, TRUE);
break;
case 'h':
default:
smbsh_usage();
}
}
if (! no_ask) {
if (!getenv("USER")) {
printf("Username: ");
u = fgets(line, sizeof(line)-1, stdin);
setenv("USER", u, TRUE);
}
if (!getenv("PASSWORD")) {
p = getpass("Password: ");
setenv("PASSWORD", p, TRUE);
}
}
strncpy(line, pre, PATH_MAX - strlen(line));
strncat(line, " ", PATH_MAX - strlen(line));
strncat(line, libd, PATH_MAX - strlen(line));
strncat(line, "/smbwrapper.so", PATH_MAX - strlen(line));
strncat(line, post, PATH_MAX - strlen(line));
setenv("LD_PRELOAD", line, TRUE);
setenv("LD_BIND_NOW", "true", TRUE);
snprintf(line,sizeof(line)-1,"%s/smbwrapper.32.so", libd);
if (stat(line, &statbuf) == 0 && S_ISREG(statbuf.st_mode)) {
snprintf(line,sizeof(line)-1,"%s/smbwrapper.32.so:DEFAULT", libd);
setenv("_RLD_LIST", line, TRUE);
snprintf(line,sizeof(line)-1,"%s/smbwrapper.so:DEFAULT", libd);
setenv("_RLDN32_LIST", line, TRUE);
} else {
snprintf(line,sizeof(line)-1,"%s/smbwrapper.so:DEFAULT", libd);
setenv("_RLD_LIST", line, TRUE);
}
if (optind < argc) {
execvp(argv[optind], &argv[optind]);
} else {
char *shellpath = getenv("SHELL");
setenv("PS1", "smbsh$ ", TRUE);
if(shellpath) {
execl(shellpath,"smbsh", NULL);
} else {
setenv("SHELL", "/bin/sh", TRUE);
execl("/bin/sh", "smbsh", NULL);
}
}
printf("launch failed!\n");
return 1;
}
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