Edit File: smbsh.c
/* 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 3 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, see <http://www.gnu.org/licenses/>. */ #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> #include "bsd-strlfunc.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') smbw_strlcat(pre, " ", sizeof(pre)); smbw_strlcat(pre, optarg, sizeof(pre)); break; case 'a': /* append library after smbwrapper.so */ smbw_strlcat(post, " ", sizeof(post)); smbw_strlcat(post, optarg, sizeof(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); } } smbw_strlcpy(line, pre, PATH_MAX - strlen(line)); smbw_strlcat(line, " ", sizeof(line)); smbw_strlcat(line, libd, sizeof(line)); smbw_strlcat(line, "/smbwrapper.so", sizeof(line)); smbw_strlcat(line, post, sizeof(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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