add mount.cifs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@437 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 1010 insertions, 0 deletions

diff --git a/openwrt/package/cifsmount/Config.in b/openwrt/package/cifsmount/Config.in
new file mode 100644
index 0000000000..35d91abc3a
--- /dev/null
+++ b/openwrt/package/cifsmount/Config.in
@@ -0,0 +1,5 @@
+config BR2_PACKAGE_CIFSMOUNT
+	tristate "mount.cifs"
+	default m
+	help
+	  user space helper for mounting remote CIFS shares
diff --git a/openwrt/package/cifsmount/Makefile b/openwrt/package/cifsmount/Makefile
new file mode 100644
index 0000000000..cc12c934cc
--- /dev/null
+++ b/openwrt/package/cifsmount/Makefile
@@ -0,0 +1,27 @@
+# $Id$
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=cifsmount
+PKG_VERSION:=1.5
+PKG_RELEASE:=1
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/cifsmount
+PKG_IPK_DIR:=$(PKG_BUILD_DIR)
+PKG_IPK:=$(PACKAGE_DIR)/$(PKG_NAME)_$(PKG_VERSION)-$(PKG_RELEASE)_$(ARCH).ipk
+
+$(PKG_BUILD_DIR)/sbin/mount.cifs:
+	mkdir -p $(PKG_BUILD_DIR)/sbin
+	$(CC) -o $(PKG_BUILD_DIR)/sbin/mount.cifs mount.cifs.c
+
+$(PKG_IPK): $(PKG_BUILD_DIR)/sbin/mount.cifs
+	$(SCRIPT_DIR)/make-ipkg-dir.sh $(PKG_IPK_DIR) $(PKG_NAME).control $(PKG_VERSION)-$(PKG_RELEASE) $(ARCH)
+	$(IPKG_BUILD) $(PKG_IPK_DIR) $(PACKAGE_DIR)
+
+source:
+prepare:
+compile: $(PKG_IPK)
+install:
+	$(IPKG) install $(PKG_IPK)
+clean:
+	rm -rf $(PKG_BUILD_DIR)
diff --git a/openwrt/package/cifsmount/cifsmount.control b/openwrt/package/cifsmount/cifsmount.control
new file mode 100644
index 0000000000..145bc77c03
--- /dev/null
+++ b/openwrt/package/cifsmount/cifsmount.control
@@ -0,0 +1,6 @@
+Package: cifsmount
+Priority: optional
+Section: net
+Maintainer: Felix Fietkau <nbd@vd-s.ath.cx>
+Source: buildroot internal
+Description: mount.cifs helper application for mounting remote CIFS shares
diff --git a/openwrt/package/cifsmount/mount.cifs.c b/openwrt/package/cifsmount/mount.cifs.c
new file mode 100644
index 0000000000..6a7d1e65a1
--- /dev/null
+++ b/openwrt/package/cifsmount/mount.cifs.c
@@ -0,0 +1,972 @@
+/* 
+   Mount helper utility for Linux CIFS VFS (virtual filesystem) client
+   Copyright (C) 2003 Steve French  (sfrench@us.ibm.com)
+
+   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.  */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/utsname.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <getopt.h>
+#include <errno.h>
+#include <netdb.h>
+#include <string.h>
+#include <mntent.h>
+#include <fcntl.h>
+
+#define MOUNT_CIFS_VERSION_MAJOR "1"
+#define MOUNT_CIFS_VERSION_MINOR "5"
+
+#ifndef MOUNT_CIFS_VENDOR_SUFFIX
+#define MOUNT_CIFS_VENDOR_SUFFIX ""
+#endif
+
+#ifndef MS_MOVE 
+#define MS_MOVE 8192 
+#endif 
+
+char * thisprogram;
+int verboseflag = 0;
+static int got_password = 0;
+static int got_user = 0;
+static int got_domain = 0;
+static int got_ip = 0;
+static int got_unc = 0;
+static int got_uid = 0;
+static int got_gid = 0;
+static int free_share_name = 0;
+static char * user_name = NULL;
+char * mountpassword = NULL;
+
+
+/* BB finish BB
+
+        cifs_umount
+        open nofollow - avoid symlink exposure? 
+        get owner of dir see if matches self or if root
+        call system(umount argv) etc.
+                
+BB end finish BB */
+
+static void mount_cifs_usage(void)
+{
+	printf("\nUsage:  %s <remotetarget> <dir> -o <options>\n", thisprogram);
+	printf("\nMount the remote target, specified as a UNC name,");
+	printf(" to a local directory.\n\nOptions:\n");
+	printf("\tuser=<arg>\n\tpass=<arg>\n\tdom=<arg>\n");
+	printf("\nLess commonly used options:");
+	printf("\n\tcredentials=<filename>,guest,perm,noperm,setuids,nosetuids,\n\trw,ro,sep=<char>,iocharset=<codepage>,suid,nosuid,exec,noexec");
+	printf("\n\nOptions not needed for servers supporting CIFS Unix extensions (e.g. most Samba versions):");
+	printf("\n\tuid=<uid>,gid=<gid>,dir_mode=<mode>,file_mode=<mode>");
+	printf("\n\nRarely used options:");
+	printf("\n\tport=<tcpport>,rsize=<size>,wsize=<size>,unc=<unc_name>,ip=<ip_address>,dev,nodev");
+	printf("\n\nOptions are described in more detail in the manual page");
+	printf("\n\tman 8 mount.cifs\n");
+	printf("\nTo display the version number of the mount helper:");
+	printf("\n\t%s -V\n",thisprogram);
+
+	if(mountpassword) {
+		memset(mountpassword,0,64);
+		free(mountpassword);
+	}
+	exit(1);
+}
+
+/* caller frees username if necessary */
+static char * getusername(void) {
+	char *username = NULL;
+	struct passwd *password = getpwuid(getuid());
+
+	if (password) {
+		username = password->pw_name;
+	}
+	return username;
+}
+
+char * parse_cifs_url(char * unc_name)
+{
+	printf("\nMounting cifs URL not implemented yet. Attempt to mount %s\n",unc_name);
+	return NULL;
+}
+
+static int open_cred_file(char * file_name)
+{
+	char * line_buf;
+	char * temp_val;
+	FILE * fs;
+	int i, length;
+	fs = fopen(file_name,"r");
+	if(fs == NULL)
+		return errno;
+	line_buf = malloc(4096);
+	if(line_buf == NULL)
+		return -ENOMEM;
+
+	while(fgets(line_buf,4096,fs)) {
+		/* parse line from credential file */
+
+		/* eat leading white space */
+		for(i=0;i<4086;i++) {
+			if((line_buf[i] != ' ') && (line_buf[i] != '\t'))
+				break;
+			/* if whitespace - skip past it */
+		}
+		if (strncasecmp("username",line_buf+i,8) == 0) {
+			temp_val = strchr(line_buf + i,'=');
+			if(temp_val) {
+				/* go past equals sign */
+				temp_val++;
+				for(length = 0;length<4087;length++) {
+					if(temp_val[length] == '\n')
+						break;
+				}
+				if(length > 4086) {
+					printf("mount.cifs failed due to malformed username in credentials file");
+					memset(line_buf,0,4096);
+					if(mountpassword) {
+						memset(mountpassword,0,64);
+					}
+					exit(1);
+				} else {
+					got_user = 1;
+					user_name = calloc(1 + length,1);
+					/* BB adding free of user_name string before exit,
+						not really necessary but would be cleaner */
+					strncpy(user_name,temp_val, length);
+				}
+			}
+		} else if (strncasecmp("password",line_buf+i,8) == 0) {
+			temp_val = strchr(line_buf+i,'=');
+			if(temp_val) {
+				/* go past equals sign */
+				temp_val++;
+				for(length = 0;length<65;length++) {
+					if(temp_val[length] == '\n')
+						break;
+				}
+				if(length > 64) {
+					printf("mount.cifs failed: password in credentials file too long\n");
+					memset(line_buf,0, 4096);
+					if(mountpassword) {
+						memset(mountpassword,0,64);
+					}
+					exit(1);
+				} else {
+					if(mountpassword == NULL) {
+						mountpassword = calloc(65,1);
+					} else
+						memset(mountpassword,0,64);
+					if(mountpassword) {
+						/* BB add handling for commas in password here */
+						strncpy(mountpassword,temp_val,length);
+						got_password = 1;
+					}
+				}
+			}
+		}
+	}
+	fclose(fs);
+	if(line_buf) {
+		memset(line_buf,0,4096);
+		free(line_buf);
+	}
+	return 0;
+}
+
+static int get_password_from_file(int file_descript, char * filename)
+{
+	int rc = 0;
+	int i;
+	char c;
+
+	if(mountpassword == NULL)
+		mountpassword = calloc(65,1);
+	else 
+		memset(mountpassword, 0, 64);
+
+	if(filename != NULL) {
+		file_descript = open(filename, O_RDONLY);
+		if(file_descript < 0) {
+			printf("mount.cifs failed. %s attempting to open password file %s\n",
+				   strerror(errno),filename);
+			exit(1);
+		}
+	}
+	/* else file already open and fd provided */
+
+	for(i=0;i<64;i++) {
+		rc = read(file_descript,&c,1);
+		if(rc < 0) {
+			printf("mount.cifs failed. Error %s reading password file\n",strerror(errno));
+			memset(mountpassword,0,64);
+			if(filename != NULL)
+				close(file_descript);
+			exit(1);
+		} else if(rc == 0) {
+			if(mountpassword[0] == 0) {
+				if(verboseflag)
+					printf("\nWarning: null password used since cifs password file empty");
+			}
+			break;
+		} else /* read valid character */ {
+			if((c == 0) || (c == '\n')) {
+				break;
+			} else 
+				mountpassword[i] = c;
+		}
+	}
+	if((i == 64) && (verboseflag)) {
+		printf("\nWarning: password longer than 64 characters specified in cifs password file");
+	}
+	got_password = 1;
+	if(filename != NULL) {
+		close(file_descript);
+	}
+
+	return rc;
+}
+
+static int parse_options(char * options, int * filesys_flags)
+{
+	char * data;
+	char * percent_char = NULL;
+	char * value = NULL;
+	char * next_keyword = NULL;
+	int rc = 0;
+
+	if (!options)
+		return 1;
+	else
+		data = options;
+
+	if(verboseflag)
+		printf("\n parsing options: %s", options);
+
+/* while ((data = strsep(&options, ",")) != NULL) { */
+	while(data != NULL) {
+		/*  check if ends with trailing comma */
+		if(*data == 0)
+			break;
+
+		/* format is keyword=value,keyword2=value2,keyword3=value3 etc.) */
+		/* data  = next keyword */
+		/* value = next value ie stuff after equal sign */
+
+		next_keyword = strchr(data,',');
+	
+		/* temporarily null terminate end of keyword=value pair */
+		if(next_keyword)
+			*next_keyword = 0;
+
+		/* if (!*data)
+			continue; */
+		
+		/* temporarily null terminate keyword to make keyword and value distinct */
+		if ((value = strchr(data, '=')) != NULL) {
+			*value = '\0';
+			value++;
+		}
+
+		if (strncmp(data, "user", 4) == 0) {
+			if (!value || !*value) {
+				if(data[4] == '\0') {
+					if(verboseflag)
+						printf("\nskipping empty user mount parameter\n");
+					/* remove the parm since it would otherwise be confusing
+					to the kernel code which would think it was a real username */
+						data[0] = ',';
+						data[1] = ',';
+						data[2] = ',';
+						data[3] = ',';
+					/* BB remove it from mount line so as not to confuse kernel code */
+				} else {
+					printf("username specified with no parameter\n");
+					return 1;	/* needs_arg; */
+				}
+			} else {
+				if (strnlen(value, 260) < 260) {
+					got_user=1;
+					percent_char = strchr(value,'%');
+					if(percent_char) {
+						*percent_char = ',';
+						if(mountpassword == NULL)
+							mountpassword = calloc(65,1);
+						if(mountpassword) {
+							if(got_password)
+								printf("\nmount.cifs warning - password specified twice\n");
+							got_password = 1;
+							percent_char++;
+							strncpy(mountpassword, percent_char,64);
+						/*  remove password from username */
+							while(*percent_char != 0) {
+								*percent_char = ',';
+								percent_char++;
+							}
+						}
+					}
+				} else {
+					printf("username too long\n");
+					return 1;
+				}
+			}
+		} else if (strncmp(data, "pass", 4) == 0) {
+			if (!value || !*value) {
+				if(got_password) {
+					printf("\npassword specified twice, ignoring second\n");
+				} else
+					got_password = 1;
+			} else if (strnlen(value, 17) < 17) {
+				if(got_password)
+					printf("\nmount.cifs warning - password specified twice\n");
+				got_password = 1;
+			} else {
+				printf("password too long\n");
+				return 1;
+			}
+		} else if (strncmp(data, "ip", 2) == 0) {
+			if (!value || !*value) {
+				printf("target ip address argument missing");
+			} else if (strnlen(value, 35) < 35) {
+				if(verboseflag)
+					printf("ip address %s override specified\n",value);
+				got_ip = 1;
+			} else {
+				printf("ip address too long\n");
+				return 1;
+			}
+		} else if ((strncmp(data, "unc", 3) == 0)
+		   || (strncmp(data, "target", 6) == 0)
+		   || (strncmp(data, "path", 4) == 0)) {
+			if (!value || !*value) {
+				printf("invalid path to network resource\n");
+				return 1;  /* needs_arg; */
+			} else if(strnlen(value,5) < 5) {
+				printf("UNC name too short");
+			}
+
+			if (strnlen(value, 300) < 300) {
+				got_unc = 1;
+				if (strncmp(value, "//", 2) == 0) {
+					if(got_unc)
+						printf("unc name specified twice, ignoring second\n");
+					else
+						got_unc = 1;
+				} else if (strncmp(value, "\\\\", 2) != 0) {	                   
+					printf("UNC Path does not begin with // or \\\\ \n");
+					return 1;
+				} else {
+					if(got_unc)
+						printf("unc name specified twice, ignoring second\n");
+					else
+						got_unc = 1;
+				}
+			} else {
+				printf("CIFS: UNC name too long\n");
+				return 1;
+			}
+		} else if ((strncmp(data, "domain", 3) == 0)
+			   || (strncmp(data, "workgroup", 5) == 0)) {
+			if (!value || !*value) {
+				printf("CIFS: invalid domain name\n");
+				return 1;	/* needs_arg; */
+			}
+			if (strnlen(value, 65) < 65) {
+				got_domain = 1;
+			} else {
+				printf("domain name too long\n");
+				return 1;
+			}
+		} else if (strncmp(data, "cred", 4) == 0) {
+			if (value && *value) {
+				rc = open_cred_file(value);
+				if(rc) {
+					printf("error %d opening credential file %s\n",rc, value);
+					return 1;
+				}
+			} else {
+				printf("invalid credential file name specified\n");
+				return 1;
+			}
+		} else if (strncmp(data, "uid", 3) == 0) {
+			if (value && *value) {
+				got_uid = 1;
+			}
+		} else if (strncmp(data, "gid", 3) == 0) {
+			if (value && *value) {
+				got_gid = 1;
+			}
+       /* fmask and dmask synonyms for people used to smbfs syntax */
+		} else if (strcmp(data, "file_mode") == 0 || strcmp(data, "fmask")==0) {
+			if (!value || !*value) {
+				printf ("Option '%s' requires a numerical argument\n", data);
+				return 1;
+			}
+
+			if (value[0] != '0') {
+				printf ("WARNING: '%s' not expressed in octal.\n", data);
+			}
+
+			if (strcmp (data, "fmask") == 0) {
+				printf ("WARNING: CIFS mount option 'fmask' is deprecated. Use 'file_mode' instead.\n");
+				data = "file_mode"; /* BB fix this */
+			}
+		} else if (strcmp(data, "dir_mode") == 0 || strcmp(data, "dmask")==0) {
+			if (!value || !*value) {
+				printf ("Option '%s' requires a numerical argument\n", data);
+				return 1;
+			}
+
+			if (value[0] != '0') {
+				printf ("WARNING: '%s' not expressed in octal.\n", data);
+			}
+
+			if (strcmp (data, "dmask") == 0) {
+				printf ("WARNING: CIFS mount option 'dmask' is deprecated. Use 'dir_mode' instead.\n");
+				data = "dir_mode";
+			}
+			/* the following eight mount options should be
+			stripped out from what is passed into the kernel
+			since these eight options are best passed as the
+			mount flags rather than redundantly to the kernel 
+			and could generate spurious warnings depending on the
+			level of the corresponding cifs vfs kernel code */
+		} else if (strncmp(data, "nosuid", 6) == 0) {
+			*filesys_flags |= MS_NOSUID;
+		} else if (strncmp(data, "suid", 4) == 0) {
+			*filesys_flags &= ~MS_NOSUID;
+		} else if (strncmp(data, "nodev", 5) == 0) {
+			*filesys_flags |= MS_NODEV;
+		} else if (strncmp(data, "dev", 3) == 0) {
+			*filesys_flags &= ~MS_NODEV;
+		} else if (strncmp(data, "noexec", 6) == 0) {
+			*filesys_flags |= MS_NOEXEC;
+		} else if (strncmp(data, "exec", 4) == 0) {
+			*filesys_flags &= ~MS_NOEXEC;
+		} else if (strncmp(data, "guest", 5) == 0) {
+			got_password=1;
+		} else if (strncmp(data, "ro", 2) == 0) {
+			*filesys_flags |= MS_RDONLY;
+		} else if (strncmp(data, "rw", 2) == 0) {
+			*filesys_flags &= ~MS_RDONLY;
+		} /* else if (strnicmp(data, "port", 4) == 0) {
+			if (value && *value) {
+				vol->port =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "rsize", 5) == 0) {
+			if (value && *value) {
+				vol->rsize =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "wsize", 5) == 0) {
+			if (value && *value) {
+				vol->wsize =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "version", 3) == 0) {
+		} else {
+			printf("CIFS: Unknown mount option %s\n",data);
+		} */ /* nothing to do on those four mount options above.
+			Just pass to kernel and ignore them here */
+
+			/* move to next option */
+		data = next_keyword+1;
+
+		/* put overwritten equals sign back */
+		if(value) {
+			value--;
+			*value = '=';
+		}
+	
+		/* put previous overwritten comma back */
+		if(next_keyword)
+			*next_keyword = ',';
+		else
+			data = NULL;
+	}
+	return 0;
+}
+
+/* Note that caller frees the returned buffer if necessary */
+char * parse_server(char ** punc_name)
+{
+	char * unc_name = *punc_name;
+	int length = strnlen(unc_name,1024);
+	char * share;
+	char * ipaddress_string = NULL;
+	struct hostent * host_entry;
+	struct in_addr server_ipaddr;
+	int rc;
+
+	if(length > 1023) {
+		printf("mount error: UNC name too long");
+		return NULL;
+	}
+	if (strncasecmp("cifs://",unc_name,7) == 0)
+		return parse_cifs_url(unc_name+7);
+	if (strncasecmp("smb://",unc_name,6) == 0) {
+		return parse_cifs_url(unc_name+6);
+	}
+
+	if(length < 3) {
+		/* BB add code to find DFS root here */
+		printf("\nMounting the DFS root for domain not implemented yet");
+		return NULL;
+	} else {
+		if(strncmp(unc_name,"//",2) && strncmp(unc_name,"\\\\",2)) {
+			/* check for nfs syntax ie server:share */
+			share = strchr(unc_name,':');
+			if(share) {
+				free_share_name = 1;
+				*punc_name = malloc(length+3);
+				*share = '/';
+				strncpy((*punc_name)+2,unc_name,length);
+				unc_name = *punc_name;
+				unc_name[length+2] = 0;
+				goto continue_unc_parsing;
+			} else {
+				printf("mount error: improperly formatted UNC name.");
+				printf(" %s does not begin with \\\\ or //\n",unc_name);
+				return NULL;
+			}
+		} else {
+continue_unc_parsing:
+			unc_name[0] = '/';
+			unc_name[1] = '/';
+			unc_name += 2;
+			if ((share = strchr(unc_name, '/')) || 
+				(share = strchr(unc_name,'\\'))) {
+				*share = 0;  /* temporarily terminate the string */
+				share += 1;
+				if(got_ip == 0) {
+					host_entry = gethostbyname(unc_name);
+				}
+				*(share - 1) = '/'; /* put the slash back */
+				if(got_ip) {
+					if(verboseflag)
+						printf("ip address specified explicitly\n");
+					return NULL;
+				}
+				if(host_entry == NULL) {
+					printf("mount error: could not find target server. TCP name %s not found ", unc_name);
+					printf(" rc = %d\n",rc);
+					return NULL;
+				} else {
+					/* BB should we pass an alternate version of the share name as Unicode */
+					/* BB what about ipv6? BB */
+					/* BB add retries with alternate servers in list */
+
+					memcpy(&server_ipaddr.s_addr, host_entry->h_addr, 4);
+
+					ipaddress_string = inet_ntoa(server_ipaddr);                                                                                     
+					if(ipaddress_string == NULL) {
+						printf("mount error: could not get valid ip address for target server\n");
+						return NULL;
+					}
+					return ipaddress_string; 
+				}
+			} else {
+				/* BB add code to find DFS root (send null path on get DFS Referral to specified server here */
+				printf("Mounting the DFS root for a particular server not implemented yet\n");
+				return NULL;
+			}
+		}
+	}
+}
+
+static struct option longopts[] = {
+	{ "all", 0, NULL, 'a' },
+	{ "help",0, NULL, 'h' },
+	{ "move",0, NULL, 'm' },
+	{ "bind",0, NULL, 'b' },
+	{ "read-only", 0, NULL, 'r' },
+	{ "ro", 0, NULL, 'r' },
+	{ "verbose", 0, NULL, 'v' },
+	{ "version", 0, NULL, 'V' },
+	{ "read-write", 0, NULL, 'w' },
+	{ "rw", 0, NULL, 'w' },
+	{ "options", 1, NULL, 'o' },
+	{ "type", 1, NULL, 't' },
+	{ "rsize",1, NULL, 'R' },
+	{ "wsize",1, NULL, 'W' },
+	{ "uid", 1, NULL, '1'},
+	{ "gid", 1, NULL, '2'},
+	{ "user",1,NULL,'u'},
+	{ "username",1,NULL,'u'},
+	{ "dom",1,NULL,'d'},
+	{ "domain",1,NULL,'d'},
+	{ "password",1,NULL,'p'},
+	{ "pass",1,NULL,'p'},
+	{ "credentials",1,NULL,'c'},
+	{ "port",1,NULL,'P'},
+	/* { "uuid",1,NULL,'U'}, */ /* BB unimplemented */
+	{ NULL, 0, NULL, 0 }
+};
+
+int main(int argc, char ** argv)
+{
+	int c;
+	int flags = MS_MANDLOCK; /* no need to set legacy MS_MGC_VAL */
+	char * orgoptions = NULL;
+	char * share_name = NULL;
+	char * domain_name = NULL;
+	char * ipaddr = NULL;
+	char * uuid = NULL;
+	char * mountpoint;
+	char * options;
+	char * resolved_path;
+	char * temp;
+	int rc;
+	int rsize = 0;
+	int wsize = 0;
+	int nomtab = 0;
+	int uid = 0;
+	int gid = 0;
+	int optlen = 0;
+	int orgoptlen = 0;
+	struct stat statbuf;
+	struct utsname sysinfo;
+	struct mntent mountent;
+	FILE * pmntfile;
+
+	/* setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE); */
+
+	if(argc && argv) {
+		thisprogram = argv[0];
+	}
+	if(thisprogram == NULL)
+		thisprogram = "mount.cifs";
+
+	uname(&sysinfo);
+	/* BB add workstation name and domain and pass down */
+
+/* #ifdef _GNU_SOURCE
+	printf(" node: %s machine: %s sysname %s domain %s\n", sysinfo.nodename,sysinfo.machine,sysinfo.sysname,sysinfo.domainname);
+#endif */
+
+	share_name = argv[1];
+	mountpoint = argv[2];
+
+	/* add sharename in opts string as unc= parm */
+
+	while ((c = getopt_long (argc, argv, "afFhilL:no:O:rsSU:vVwt:",
+			 longopts, NULL)) != -1) {
+		switch (c) {
+/* No code to do the following  options yet */
+/*	case 'l':
+		list_with_volumelabel = 1;
+		break;
+	case 'L':
+		volumelabel = optarg;
+		break; */
+/*	case 'a':	       
+		++mount_all;
+		break; */
+
+		case '?':
+		case 'h':	 /* help */
+			mount_cifs_usage ();
+			exit(1);
+		case 'n':
+		    ++nomtab;
+		    break;
+		case 'b':
+			flags |= MS_BIND;
+			break;
+		case 'm':
+			flags |= MS_MOVE;
+			break;
+		case 'o':
+			orgoptions = strdup(optarg);
+		    break;
+		case 'r':  /* mount readonly */
+			flags |= MS_RDONLY;
+			break;
+		case 'U':
+			uuid = optarg;
+			break;
+		case 'v':
+			++verboseflag;
+			break;
+		case 'V':	   
+			printf ("mount.cifs version: %s.%s%s\n",
+			MOUNT_CIFS_VERSION_MAJOR,
+			MOUNT_CIFS_VERSION_MINOR,
+			MOUNT_CIFS_VENDOR_SUFFIX);
+			if(mountpassword) {
+				memset(mountpassword,0,64);
+			}
+			exit (0);
+		case 'w':
+			flags &= ~MS_RDONLY;
+			break;
+		case 'R':
+			rsize = atoi(optarg) ;
+			break;
+		case 'W':
+			wsize = atoi(optarg);
+			break;
+		case '1':
+			uid = atoi(optarg);
+			break;
+		case '2':
+			gid = atoi(optarg);
+			break;
+		case 'u':
+			got_user = 1;
+			user_name = optarg;
+			break;
+		case 'd':
+			domain_name = optarg;
+			break;
+		case 'p':
+			if(mountpassword == NULL)
+				mountpassword = calloc(65,1);
+			if(mountpassword) {
+				got_password = 1;
+				strncpy(mountpassword,optarg,64);
+			}
+			break;
+		case 'S':
+			get_password_from_file(0 /* stdin */,NULL);
+			break;
+		case 't':
+			break;
+		default:
+			printf("unknown mount option %c\n",c);
+			mount_cifs_usage();
+			exit(1);
+		}
+	}
+
+	if(argc < 3)
+		mount_cifs_usage();
+
+	if (getenv("PASSWD")) {
+		if(mountpassword == NULL)
+			mountpassword = calloc(65,1);
+		if(mountpassword) {
+			strncpy(mountpassword,getenv("PASSWD"),64);
+			got_password = 1;
+		}
+	} else if (getenv("PASSWD_FD")) {
+		get_password_from_file(atoi(getenv("PASSWD_FD")),NULL);
+	} else if (getenv("PASSWD_FILE")) {
+		get_password_from_file(0, getenv("PASSWD_FILE"));
+	}
+
+        if (orgoptions && parse_options(orgoptions, &flags))
+                return -1;
+	
+	ipaddr = parse_server(&share_name);
+	if((ipaddr == NULL) && (got_ip == 0)) {
+		printf("No ip address specified and hostname not found\n");
+		return -1;
+	}
+	
+
+	/* BB save off path and pop after mount returns? */
+	resolved_path = malloc(PATH_MAX+1);
+	if(resolved_path) {
+		/* Note that if we can not canonicalize the name, we get
+		another chance to see if it is valid when we chdir to it */
+		if (realpath(mountpoint, resolved_path)) {
+			mountpoint = resolved_path; 
+		}
+	}
+	if(chdir(mountpoint)) {
+		printf("mount error: can not change directory into mount target %s\n",mountpoint);
+		return -1;
+	}
+
+	if(stat (".", &statbuf)) {
+		printf("mount error: mount point %s does not exist\n",mountpoint);
+		return -1;
+	}
+
+	if (S_ISDIR(statbuf.st_mode) == 0) {
+		printf("mount error: mount point %s is not a directory\n",mountpoint);
+		return -1;
+	}
+
+	if((getuid() != 0) && (geteuid() == 0)) {
+		if((statbuf.st_uid == getuid()) && (S_IRWXU == (statbuf.st_mode & S_IRWXU))) {
+#ifndef CIFS_ALLOW_USR_SUID
+			/* Do not allow user mounts to control suid flag
+			for mount unless explicitly built that way */
+			flags |= MS_NOSUID | MS_NODEV;
+#endif						
+		} else {
+			printf("mount error: permission denied or not superuser and mount.cifs not installed SUID\n"); 
+			return -1;
+		}
+	}
+
+	if(got_user == 0)
+		user_name = getusername();
+       
+	if(got_password == 0) {
+		mountpassword = getpass("Password: "); /* BB obsolete */
+		got_password = 1;
+	}
+	/* FIXME launch daemon (handles dfs name resolution and credential change) 
+	   remember to clear parms and overwrite password field before launching */
+	if(orgoptions) {
+		optlen = strlen(orgoptions);
+		orgoptlen = optlen;
+	} else
+		optlen = 0;
+	if(share_name)
+		optlen += strlen(share_name) + 4;
+	if(user_name)
+		optlen += strlen(user_name) + 6;
+	if(ipaddr)
+		optlen += strlen(ipaddr) + 4;
+	if(mountpassword)
+		optlen += strlen(mountpassword) + 6;
+	options = malloc(optlen + 10);
+
+	if(options == NULL) {
+		printf("Could not allocate memory for mount options\n");
+		return -1;
+	}
+		
+
+	options[0] = 0;
+	strncat(options,"unc=",4);
+	strcat(options,share_name);
+	/* scan backwards and reverse direction of slash */
+	temp = strrchr(options, '/');
+	if(temp > options + 6)
+		*temp = '\\';
+	if(ipaddr) {
+		strncat(options,",ip=",4);
+		strcat(options,ipaddr);
+	} 
+	if(user_name) {
+		strncat(options,",user=",6);
+		strcat(options,user_name);
+	} 
+	if(mountpassword) {
+		strncat(options,",pass=",6);
+		strcat(options,mountpassword);
+	}
+	strncat(options,",ver=",5);
+	strcat(options,MOUNT_CIFS_VERSION_MAJOR);
+
+	if(orgoptions) {
+		strcat(options,",");
+		strcat(options,orgoptions);
+	}
+	if(verboseflag)
+		printf("\nmount.cifs kernel mount options %s \n",options);
+	if(mount(share_name, mountpoint, "cifs", flags, options)) {
+	/* remember to kill daemon on error */
+		switch (errno) {
+		case 0:
+			printf("mount failed but no error number set\n");
+			break;
+		case ENODEV:
+			printf("mount error: cifs filesystem not supported by the system\n");
+			break;
+		default:
+			printf("mount error %d = %s\n",errno,strerror(errno));
+		}
+		printf("Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)\n");
+		if(mountpassword) {
+			memset(mountpassword,0,64);
+		}
+		return -1;
+	} else {
+		pmntfile = setmntent(MOUNTED, "a+");
+		if(pmntfile) {
+			mountent.mnt_fsname = share_name;
+			mountent.mnt_dir = mountpoint; 
+			mountent.mnt_type = "cifs"; 
+			mountent.mnt_opts = malloc(220);
+			if(mountent.mnt_opts) {
+				char * mount_user = getusername();
+				memset(mountent.mnt_opts,0,200);
+				if(flags & MS_RDONLY)
+					strcat(mountent.mnt_opts,"ro");
+				else
+					strcat(mountent.mnt_opts,"rw");
+				if(flags & MS_MANDLOCK)
+					strcat(mountent.mnt_opts,",mand");
+				else
+					strcat(mountent.mnt_opts,",nomand");
+				if(flags & MS_NOEXEC)
+					strcat(mountent.mnt_opts,",noexec");
+				if(flags & MS_NOSUID)
+					strcat(mountent.mnt_opts,",nosuid");
+				if(flags & MS_NODEV)
+					strcat(mountent.mnt_opts,",nodev");
+				if(flags & MS_SYNCHRONOUS)
+					strcat(mountent.mnt_opts,",synch");
+				if(mount_user) {
+					if(getuid() != 0) {
+						strcat(mountent.mnt_opts,",user=");
+						strcat(mountent.mnt_opts,mount_user);
+					}
+					free(mount_user);
+				}
+			}
+			mountent.mnt_freq = 0;
+			mountent.mnt_passno = 0;
+			rc = addmntent(pmntfile,&mountent);
+			endmntent(pmntfile);
+			if(mountent.mnt_opts)
+				free(mountent.mnt_opts);
+		} else {
+		    printf("could not update mount table\n");
+		}
+	}
+	if(mountpassword) {
+		memset(mountpassword,0,64);
+		free(mountpassword);
+	}
+
+	if(options) {
+		memset(options,0,optlen);
+		free(options);
+	}
+
+	if(orgoptions) {
+		memset(orgoptions,0,orgoptlen);
+		free(orgoptions);
+	}
+	if(resolved_path) {
+		free(resolved_path);
+	}
+
+	if(free_share_name) {
+		free(share_name);
+		}
+	return 0;
+}
+