/* Unix SMB/Netbios implementation. Version 2.0 SMB client library implementation Copyright (C) Andrew Tridgell 1998 Copyright (C) Richard Sharpe 2000 Copyright (C) John Terpstra 2000 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 "includes.h" #include "libsmbclient.h" /* Structure for servers ... Held here so we don't need an include ... * May be better to put in an include file */ struct smbc_server { struct smbc_server *next, *prev; struct cli_state cli; dev_t dev; char *server_name; char *share_name; char *workgroup; char *username; BOOL no_pathinfo2; }; /* Keep directory entries in a list */ struct smbc_dir_list { struct smbc_dir_list *next; struct smbc_dirent *dirent; }; struct smbc_file { int cli_fd; int smbc_fd; char *fname; off_t offset; struct smbc_server *srv; BOOL file; struct smbc_dir_list *dir_list, *dir_end, *dir_next; int dir_type, dir_error; }; extern BOOL in_client; static int smbc_initialized = 0; static smbc_get_auth_data_fn smbc_auth_fn = NULL; static int smbc_debug; static int smbc_start_fd; static int smbc_max_fd = 10000; static struct smbc_file **smbc_file_table; static struct smbc_server *smbc_srvs; static pstring my_netbios_name; /* * Clean up a filename by removing redundent stuff */ static void smbc_clean_fname(char *name) { char *p, *p2; int l; int modified = 1; if (!name) return; while (modified) { modified = 0; DEBUG(5,("cleaning %s\n", name)); if ((p=strstr(name,"/./"))) { modified = 1; while (*p) { p[0] = p[2]; p++; } } if ((p=strstr(name,"//"))) { modified = 1; while (*p) { p[0] = p[1]; p++; } } if (strcmp(name,"/../")==0) { modified = 1; name[1] = 0; } if ((p=strstr(name,"/../"))) { modified = 1; for (p2=(p>name?p-1:p);p2>name;p2--) { if (p2[0] == '/') break; } while (*p2) { p2[0] = p2[3]; p2++; } } if (strcmp(name,"/..")==0) { modified = 1; name[1] = 0; } l = strlen(name); p = l>=3?(name+l-3):name; if (strcmp(p,"/..")==0) { modified = 1; for (p2=p-1;p2>name;p2--) { if (p2[0] == '/') break; } if (p2==name) { p[0] = '/'; p[1] = 0; } else { p2[0] = 0; } } l = strlen(name); p = l>=2?(name+l-2):name; if (strcmp(p,"/.")==0) { if (p == name) { p[1] = 0; } else { p[0] = 0; } } if (strncmp(p=name,"./",2) == 0) { modified = 1; do { p[0] = p[2]; } while (*p++); } l = strlen(p=name); if (l > 1 && p[l-1] == '/') { modified = 1; p[l-1] = 0; } } } /* * Function to parse a path and turn it into components * * We accept smb://[[[domain;]user[:password@]]server[/share[/path[/file]]]] * * smb:// means show all the workgroups * smb://name/ means, if name<1D> exists, list servers in workgroup, * else, if name<20> exists, list all shares for server ... */ static const char *smbc_prefix = "smb:"; static int smbc_parse_path(const char *fname, char *server, char *share, char *path) { static pstring s; char *p; int len; fstring workgroup; server[0] = share[0] = path[0] = (char)0; pstrcpy(s, fname); /* clean_fname(s); causing problems ... */ /* see if it has the right prefix */ len = strlen(smbc_prefix); if (strncmp(s,smbc_prefix,len) || (s[len] != '/' && s[len] != 0)) return -1; /* What about no smb: ? */ p = s + len; /* Watch the test below, we are testing to see if we should exit */ if (strncmp(p, "//", 2) && strncmp(p, "\\\\", 2)) { return -1; } p += 2; /* Skip the // or \\ */ if (*p == (char)0) return 0; if (*p == '/') { strncpy(server, lp_workgroup(), 16); /* FIXME: Danger here */ return 0; } /* ok, its for us. Now parse out the server, share etc. */ if (!next_token(&p, server, "/", sizeof(fstring))) { return -1; } if (*p == (char)0) return 0; /* That's it ... */ if (!next_token(&p, share, "/", sizeof(fstring))) { return -1; } pstrcpy(path, p); all_string_sub(path, "/", "\\", 0); return 0; } /* * Convert an SMB error into a UNIX error ... */ int smbc_errno(struct cli_state *c) { uint8 eclass; uint32 ecode; int ret; ret = cli_error(c, &eclass, &ecode, NULL); if (ret) { DEBUG(3,("smbc_error %d %d (0x%x) -> %d\n", (int)eclass, (int)ecode, (int)ecode, ret)); } return ret; } /* * Connect to a server, possibly on an existing connection */ struct smbc_server *smbc_server(char *server, char *share) { struct smbc_server *srv=NULL; struct cli_state c; char *username = NULL; char *password = NULL; char *workgroup = NULL; struct nmb_name called, calling; char *p, *server_n = server; fstring group; pstring ipenv; struct in_addr ip; extern struct in_addr ipzero; ip = ipzero; ZERO_STRUCT(c); if (strncmp(share, "IPC$", 4)) /* IPC$ should not need a pwd ... */ smbc_auth_fn(server, share, &workgroup, &username, &password); else { workgroup = lp_workgroup(); /* Is this relevant here? */ username = ""; password = ""; } /* try to use an existing connection */ for (srv=smbc_srvs;srv;srv=srv->next) { if (strcmp(server,srv->server_name)==0 && strcmp(share,srv->share_name)==0 && strcmp(workgroup,srv->workgroup)==0 && strcmp(username, srv->username) == 0) return srv; } if (server[0] == 0) { errno = EPERM; return NULL; } make_nmb_name(&calling, my_netbios_name, 0x0); make_nmb_name(&called , server, 0x20); DEBUG(4,("server_n=[%s] server=[%s]\n", server_n, server)); if ((p=strchr(server_n,'#')) && (strcmp(p+1,"1D")==0 || strcmp(p+1,"01")==0)) { struct in_addr sip; pstring s; fstrcpy(group, server_n); p = strchr(group,'#'); *p = 0; } DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server)); again: slprintf(ipenv,sizeof(ipenv)-1,"HOST_%s", server_n); ip = ipzero; /* have to open a new connection */ if (!cli_initialise(&c) || !cli_connect(&c, server_n, &ip)) { errno = ENOENT; return NULL; } if (!cli_session_request(&c, &calling, &called)) { cli_shutdown(&c); if (strcmp(called.name, "*SMBSERVER")) { make_nmb_name(&called , "*SMBSERVER", 0x20); goto again; } errno = ENOENT; return NULL; } DEBUG(4,(" session request ok\n")); if (!cli_negprot(&c)) { cli_shutdown(&c); errno = ENOENT; return NULL; } if (!cli_session_setup(&c, username, password, strlen(password), password, strlen(password), workgroup) && /* try an anonymous login if it failed */ !cli_session_setup(&c, "", "", 1,"", 0, workgroup)) { cli_shutdown(&c); errno = EPERM; return NULL; } DEBUG(4,(" session setup ok\n")); if (!cli_send_tconX(&c, share, "?????", password, strlen(password)+1)) { errno = smbc_errno(&c); cli_shutdown(&c); return NULL; } DEBUG(4,(" tconx ok\n")); srv = (struct smbc_server *)malloc(sizeof(*srv)); if (!srv) { errno = ENOMEM; goto failed; } ZERO_STRUCTP(srv); srv->cli = c; srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share)); srv->server_name = strdup(server); if (!srv->server_name) { errno = ENOMEM; goto failed; } srv->share_name = strdup(share); if (!srv->share_name) { errno = ENOMEM; goto failed; } srv->workgroup = strdup(workgroup); if (!srv->workgroup) { errno = ENOMEM; goto failed; } srv->username = strdup(username); if (!srv->username) { errno = ENOMEM; goto failed; } DLIST_ADD(smbc_srvs, srv); return srv; failed: cli_shutdown(&c); if (!srv) return NULL; if (srv->server_name) free(srv->server_name); if (srv->share_name) free(srv->share_name); free(srv); return NULL; } /* *Initialise the library etc */ int smbc_init(smbc_get_auth_data_fn fn, const char *wgroup, int debug) { static pstring workgroup; pstring conf; int p, pid; char *user = NULL, *host = NULL, *home = NULL, *pname="libsmbclient"; smbc_initialized = 1; smbc_auth_fn = fn; smbc_debug = debug; DEBUGLEVEL = -1; setup_logging(pname, False); /* * We try to construct our netbios name from our hostname etc */ user = getenv("USER"); if (!user) user = ""; pid = getpid(); /* * Hmmm, I want to get hostname as well, but I am too lazy for the moment */ slprintf(my_netbios_name, 16, "smbc%s%d", user, pid); pstrcpy(workgroup, wgroup); charset_initialise(); /* Here we would open the smb.conf file if needed ... */ home = getenv("HOME"); slprintf(conf, sizeof(conf), "%s/.smb/smb.conf", home); load_interfaces(); /* Load the list of interfaces ... */ in_client = True; /* FIXME, make a param */ if (!lp_load(conf, True, False, False)) { /* * Hmmm, what the hell do we do here ... we could not parse the * config file ... We must return an error ... and keep info around * about why we failed */ /* errno = ENOENT; /* Hmmm, what error resp does lp_load return ? */ return -1; } reopen_logs(); /* Get logging working ... */ /* * Now initialize the file descriptor array and figure out what the * max open files is, so we can return FD's that are above the max * open file, and separated by a guard band */ #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)) do { struct rlimit rlp; if (getrlimit(RLIMIT_NOFILE, &rlp)) { DEBUG(0, ("smbc_init: getrlimit(1) for RLIMIT_NOFILE failed with error %s\n", strerror(errno))); smbc_start_fd = 1000000; smbc_max_fd = 10000; /* FIXME, should be a define ... */ } else { smbc_start_fd = rlp.rlim_max + 10000; /* Leave a guard space of 10,000 */ smbc_max_fd = 10000; } } while ( 0 ); #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */ smbc_start_fd = 1000000; smbc_max_fd = 10000; /* FIXME, should be a define ... */ #endif smbc_file_table = malloc(smbc_max_fd * sizeof(struct smbc_file *)); for (p = 0; p < smbc_max_fd; p++) smbc_file_table[p] = NULL; if (!smbc_file_table) return ENOMEM; return 0; /* Success */ } /* * Routine to open() a file ... */ int smbc_open(const char *fname, int flags, mode_t mode) { fstring server, share; pstring path; struct smbc_server *srv = NULL; struct smbc_file *file = NULL; int fd; if (!smbc_initialized) { errno = EUCLEAN; /* Best I can think of ... */ return -1; } if (!fname) { errno = EINVAL; return -1; } smbc_parse_path(fname, server, share, path); /* FIXME, check errors */ srv = smbc_server(server, share); if (!srv) { return -1; /* smbc_server sets errno */ } if (path[strlen(path) - 1] == '\\') { fd = -1; } else { int slot = 0; /* Find a free slot first */ while (smbc_file_table[slot]) slot++; if (slot > smbc_max_fd) { errno = ENOMEM; /* FIXME, is this best? */ return -1; } smbc_file_table[slot] = malloc(sizeof(struct smbc_file)); if (!smbc_file_table[slot]) { errno = ENOMEM; return -1; } fd = cli_open(&srv->cli, path, flags, DENY_NONE); /* Fill in file struct */ smbc_file_table[slot]->cli_fd = fd; smbc_file_table[slot]->smbc_fd = slot + smbc_start_fd; smbc_file_table[slot]->fname = strdup(fname); smbc_file_table[slot]->srv = srv; smbc_file_table[slot]->offset = 0; smbc_file_table[slot]->file = True; return smbc_file_table[slot]->smbc_fd; } /* Check if opendir needed ... */ if (fd == -1) { int eno = 0; eno = smbc_errno(&srv->cli); fd = smbc_opendir(fname); if (fd < 0) errno = eno; return fd; } return 1; /* Success, with fd ... */ failed: /*FIXME, clean up things ... */ return -1; } /* * Routine to create a file */ static int creat_bits = O_WRONLY | O_CREAT | O_TRUNC; /* FIXME: Do we need this */ int smbc_creat(const char *path, mode_t mode) { if (!smbc_initialized) { errno = EUCLEAN; return -1; } return smbc_open(path, creat_bits, mode); } /* * Routine to read() a file ... */ ssize_t smbc_read(int fd, void *buf, size_t count) { struct smbc_file *fe; int ret; if (!smbc_initialized) { errno = EUCLEAN; return -1; } DEBUG(4, ("smbc_read(%d, %d)\n", fd, (int)count)); if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (!fe->file) { errno = EBADF; return -1; } ret = cli_read(&fe->srv->cli, fe->cli_fd, buf, fe->offset, count); if (ret < 0) { errno = smbc_errno(&fe->srv->cli); return -1; } fe->offset += ret; DEBUG(4, (" --> %d\n", ret)); return ret; /* Success, ret bytes of data ... */ } /* * Routine to write() a file ... */ ssize_t smbc_write(int fd, void *buf, size_t count) { int ret; struct smbc_file *fe; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; ret = cli_write(&fe->srv->cli, fe->cli_fd, 0, buf, fe->offset, count); if (ret < 0) { errno = smbc_errno(&fe->srv->cli); return -1; } fe->offset += ret; return ret; /* Success, 0 bytes of data ... */ } /* * Routine to close() a file ... */ int smbc_close(int fd) { struct smbc_file *fe; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (!fe->file) { return smbc_closedir(fd); } if (!cli_close(&fe->srv->cli, fe->cli_fd)) { errno = smbc_errno(&fe->srv->cli); /* FIXME, should we deallocate slot? */ return -1; } free(fe); smbc_file_table[fd - smbc_start_fd] = NULL; return 0; } /* * Routine to unlink() a file */ int smbc_unlink(const char *fname) { fstring server, share; pstring path; struct smbc_server *srv = NULL; if (!smbc_initialized) { errno = EUCLEAN; /* Best I can think of ... */ return -1; } if (!fname) { errno = EINVAL; return -1; } smbc_parse_path(fname, server, share, path); /* FIXME, check errors */ srv = smbc_server(server, share); if (!srv) { return -1; /* smbc_server sets errno */ } /* if (strncmp(srv->cli.dev, "LPT", 3) == 0) { int job = smbc_stat_printjob(srv, path, NULL, NULL); if (job == -1) { return -1; } if (cli_printjob_del(&srv->cli, job) != 0) { return -1; } } else */ if (!cli_unlink(&srv->cli, path)) { errno = smbc_errno(&srv->cli); return -1; } return 0; /* Success ... */ } /* * Routine to rename() a file */ int smbc_rename(const char *oname, const char *nname) { fstring server1, share1, server2, share2; pstring path1, path2; struct smbc_server *srv = NULL; if (!smbc_initialized) { errno = EUCLEAN; /* Best I can think of ... */ return -1; } if (!oname || !nname) { errno = EINVAL; return -1; } DEBUG(4, ("smbc_rename(%s,%s)\n", oname, nname)); smbc_parse_path(oname, server1, share1, path1); smbc_parse_path(nname, server2, share2, path2); if (strcmp(server1, server2) || strcmp(share1, share2)) { /* Can't rename across file systems */ errno = EXDEV; return -1; } srv = smbc_server(server1, share1); if (!srv) { return -1; } if (!cli_rename(&srv->cli, path1, path2)) { int eno = smbc_errno(&srv->cli); if (eno != EEXIST || !cli_unlink(&srv->cli, path2) || !cli_rename(&srv->cli, path1, path2)) { errno = eno; return -1; } } return 0; /* Success */ } /* * A routine to lseek() a file */ off_t smbc_lseek(int fd, off_t offset, int whence) { struct smbc_file *fe; size_t size; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (!fe->file) { return smbc_lseekdir(fd, offset, whence); } switch (whence) { case SEEK_SET: fe->offset = offset; break; case SEEK_CUR: fe->offset += offset; break; case SEEK_END: if (!cli_qfileinfo(&fe->srv->cli, fe->cli_fd, NULL, &size, NULL, NULL, NULL, NULL, NULL) && !cli_getattrE(&fe->srv->cli, fe->cli_fd, NULL, &size, NULL, NULL, NULL)) { errno = EINVAL; return -1; } fe->offset = size + offset; break; default: errno = EINVAL; break; } return fe->offset; } /* * Generate an inode number from file name for those things that need it */ static ino_t smbc_inode(const char *name) { if (!*name) return 2; /* FIXME, why 2 ??? */ return (ino_t)str_checksum(name); } /* * Routine to put basic stat info into a stat structure ... Used by stat and * fstat below. */ static int smbc_setup_stat(struct stat *st, char *fname, size_t size, int mode) { st->st_mode = 0; if (IS_DOS_DIR(mode)) { st->st_mode = SMBC_DIR_MODE; } else { st->st_mode = SMBC_FILE_MODE; } if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR; if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP; if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH; if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR; st->st_size = size; st->st_blksize = 512; st->st_blocks = (size+511)/512; st->st_uid = getuid(); st->st_gid = getgid(); if (IS_DOS_DIR(mode)) { st->st_nlink = 2; } else { st->st_nlink = 1; } if (st->st_ino == 0) { st->st_ino = smbc_inode(fname); } } /* * Get info from an SMB server on a file. Use a qpathinfo call first * and if that fails, use getatr, as Win95 sometimes refuses qpathinfo */ BOOL smbc_getatr(struct smbc_server *srv, char *path, uint16 *mode, size_t *size, time_t *c_time, time_t *a_time, time_t *m_time, SMB_INO_T *ino) { if (!smbc_initialized) { errno = EUCLEAN; return -1; } DEBUG(4,("sending qpathinfo\n")); if (!srv->no_pathinfo2 && cli_qpathinfo2(&srv->cli, path, c_time, a_time, m_time, NULL, size, mode, ino)) return True; /* if this is NT then don't bother with the getatr */ if (srv->cli.capabilities & CAP_NT_SMBS) return False; if (cli_getatr(&srv->cli, path, mode, size, m_time)) { a_time = c_time = m_time; srv->no_pathinfo2 = True; return True; } return False; } /* * Routine to stat a file given a name */ int smbc_stat(const char *fname, struct stat *st) { struct smbc_server *srv; fstring server, share; pstring path; time_t m_time = 0, a_time = 0, c_time = 0; size_t size = 0; uint16 mode = 0; SMB_INO_T ino = 0; if (!smbc_initialized) { errno = EUCLEAN; /* Best I can think of ... */ return -1; } if (!fname) { errno = EINVAL; return -1; } DEBUG(4, ("stat(%s)\n", fname)); smbc_parse_path(fname, server, share, path); srv = smbc_server(server, share); if (!srv) { return -1; /* errno set by smbc_server */ } /* if (strncmp(srv->cli.dev, "IPC", 3) == 0) { mode = aDIR | aRONLY; } else if (strncmp(srv->cli.dev, "LPT", 3) == 0) { if (strcmp(path, "\\") == 0) { mode = aDIR | aRONLY; } else { mode = aRONLY; smbc_stat_printjob(srv, path, &size, &m_time); c_time = a_time = m_time; } else { */ if (!smbc_getatr(srv, path, &mode, &size, &c_time, &a_time, &m_time, &ino)) { errno = smbc_errno(&srv->cli); return -1; } /* } */ st->st_ino = ino; smbc_setup_stat(st, path, size, mode); st->st_atime = a_time; st->st_ctime = c_time; st->st_mtime = m_time; st->st_dev = srv->dev; return 0; } /* * Routine to stat a file given an fd */ int smbc_fstat(int fd, struct stat *st) { struct smbc_file *fe; time_t c_time, a_time, m_time; size_t size; uint16 mode; SMB_INO_T ino = 0; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (!fe->file) { return smbc_fstatdir(fd, st); } if (!cli_qfileinfo(&fe->srv->cli, fe->cli_fd, &mode, &size, &c_time, &a_time, &m_time, NULL, &ino) && !cli_getattrE(&fe->srv->cli, fe->cli_fd, &mode, &size, &c_time, &a_time, &m_time)) { errno = EINVAL; return -1; } st->st_ino = ino; smbc_setup_stat(st, fe->fname, size, mode); st->st_atime = a_time; st->st_ctime = c_time; st->st_mtime = m_time; st->st_dev = fe->srv->dev; return 0; } /* * Routine to open a directory * * We want to allow: * * smb: which should list all the workgroups available * smb:workgroup * smb:workgroup//server * smb://server * smb://server/share */ static void smbc_remove_dir(struct smbc_file *dir) { struct smbc_dir_list *d,*f; d = dir->dir_list; while (d) { f = d; d = d->next; if (f->dirent) free(f->dirent); free(f); } dir->dir_list = dir->dir_end = dir->dir_next = NULL; } static int add_dirent(struct smbc_file *dir, const char *name, const char *comment, uint32 type) { struct smbc_dirent *dirent; int size; /* * Allocate space for the dirent, which must be increased by the * size of the name and the comment and 1 for the null on the comment. * The null on the name is already accounted for. */ size = sizeof(struct smbc_dirent) + (name?strlen(name):0) + (comment?strlen(comment):0) + 1; dirent = malloc(size); if (!dirent) { dir->dir_error = ENOMEM; return -1; } if (dir->dir_list == NULL) { dir->dir_list = malloc(sizeof(struct smbc_dir_list)); if (!dir->dir_list) { free(dirent); dir->dir_error = ENOMEM; return -1; } dir->dir_end = dir->dir_next = dir->dir_list; } else { dir->dir_end->next = malloc(sizeof(struct smbc_dir_list)); if (!dir->dir_end) { free(dirent); dir->dir_error = ENOMEM; return -1; } dir->dir_end = dir->dir_end->next; } dir->dir_end->next = NULL; dir->dir_end->dirent = dirent; dirent->smbc_type = type; dirent->namelen = (name?strlen(name):0); dirent->commentlen = (comment?strlen(comment):0); dirent->dirlen = size; strncpy(dirent->name, (name?name:""), dirent->namelen + 1); dirent->comment = (char *)(&dirent->name + dirent->namelen + 1); strncpy(dirent->comment, (comment?comment:""), dirent->commentlen + 1); return 0; } static void list_fn(const char *name, uint32 type, const char *comment, void *state) { struct smbc_file *dir = (struct smbc_file *)state; int dirent_type; /* We need to process the type a little ... */ if (dir->dir_type == SMBC_FILE_SHARE) { switch (type) { case 0: /* Directory tree */ dirent_type = SMBC_FILE_SHARE; break; case 1: dirent_type = SMBC_PRINTER_SHARE; break; case 2: dirent_type = SMBC_COMMS_SHARE; break; case 3: dirent_type = SMBC_IPC_SHARE; break; default: dirent_type = SMBC_FILE_SHARE; /* FIXME, error? */ break; } } else dirent_type = dir->dir_type; if (add_dirent(dir, name, comment, dirent_type) < 0) { /* An error occurred, what do we do? */ } } static void dir_list_fn(file_info *finfo, const char *mask, void *state) { fprintf(stderr, "Finfo->name=%s, mask=%s\n", finfo->name, mask); if (add_dirent((struct smbc_file *)state, finfo->name, "", (finfo->mode&aDIR?SMBC_DIR:SMBC_FILE)) < 0) { /* Handle an error ... */ } } int smbc_opendir(const char *fname) { struct in_addr addr; fstring server, share; pstring path; struct smbc_server *srv = NULL; struct in_addr rem_ip; int slot = 0; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (!fname) { errno = EINVAL; return -1; } if (smbc_parse_path(fname, server, share, path)) { errno = EINVAL; return -1; } /* Get a file entry ... */ slot = 0; while (smbc_file_table[slot]) slot++; if (slot > smbc_max_fd) { errno = ENOMEM; return -1; /* FIXME, ... move into a func */ } smbc_file_table[slot] = malloc(sizeof(struct smbc_file)); if (!smbc_file_table[slot]) { errno = ENOMEM; return -1; } smbc_file_table[slot]->cli_fd = 0; smbc_file_table[slot]->smbc_fd = slot + smbc_start_fd; smbc_file_table[slot]->fname = strdup(fname); smbc_file_table[slot]->srv = NULL; smbc_file_table[slot]->offset = 0; smbc_file_table[slot]->file = False; smbc_file_table[slot]->dir_list = NULL; if (server[0] == (char)0) { if (share[0] != (char)0 || path[0] != (char)0) { errno = EINVAL; if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } /* We have server and share and path empty ... so list the workgroups */ /* fprintf(stderr, "Workgroup is: %s\n", lp_workgroup()); */ cli_get_backup_server(my_netbios_name, lp_workgroup(), server, sizeof(server)); smbc_file_table[slot]->dir_type = SMBC_WORKGROUP; /* * Get a connection to IPC$ on the server if we do not already have one */ srv = smbc_server(server, "IPC$"); if (!srv) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } smbc_file_table[slot]->srv = srv; /* Now, list the stuff ... */ if (!cli_NetServerEnum(&srv->cli, lp_workgroup(), 0x80000000, list_fn, (void *)smbc_file_table[slot])) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } } else { /* Server not an empty string ... Check the rest and see what gives */ if (share[0] == (char)0) { if (path[0] != (char)0) { /* Should not have empty share with path */ errno = EINVAL; if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } /* Check to see if <1D> translates, or <20> translates */ if (resolve_name(server, &rem_ip, 0x1d)) { /* Found LMB */ pstring buserver; smbc_file_table[slot]->dir_type = SMBC_SERVER; /* * Get the backup list ... */ cli_get_backup_server(my_netbios_name, server, buserver, sizeof(buserver)); /* * Get a connection to IPC$ on the server if we do not already have one */ srv = smbc_server(buserver, "IPC$"); if (!srv) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; /* FIXME: Memory leaks ... */ return -1; } smbc_file_table[slot]->srv = srv; /* Now, list the servers ... */ if (!cli_NetServerEnum(&srv->cli, server, 0x0000FFFE, list_fn, (void *)smbc_file_table[slot])) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } } else { if (resolve_name(server, &rem_ip, 0x20)) { /* Now, list the shares ... */ smbc_file_table[slot]->dir_type = SMBC_FILE_SHARE; srv = smbc_server(server, "IPC$"); if (!srv) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } smbc_file_table[slot]->srv = srv; /* Now, list the servers ... */ if (!cli_RNetShareEnum(&srv->cli, list_fn, (void *)smbc_file_table[slot])) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } } else { errno = EINVAL; if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } } } else { /* The server and share are specified ... work from there ... */ /* Well, we connect to the server and list the directory */ smbc_file_table[slot]->dir_type = SMBC_FILE_SHARE; srv = smbc_server(server, share); if (!srv) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; return -1; } smbc_file_table[slot]->srv = srv; /* Now, list the files ... */ pstrcat(path, "\\*"); if (!cli_list(&srv->cli, path, aDIR | aSYSTEM | aHIDDEN, dir_list_fn, (void *)smbc_file_table[slot])) { if (smbc_file_table[slot]) free(smbc_file_table[slot]); smbc_file_table[slot] = NULL; errno = smbc_errno(&srv->cli); return -1; } } } return smbc_file_table[slot]->smbc_fd; } /* * Routine to close a directory */ int smbc_closedir(int fd) { struct smbc_file *fe; if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (!fe) { errno = ENOENT; /* FIXME: Is this correct */ return -1; } smbc_remove_dir(fe); /* Clean it up */ if (fe) free(fe); /* Free the space too */ smbc_file_table[fd - smbc_start_fd] = NULL; return 0; } /* * Routine to get a directory entry */ int smbc_getdents(unsigned int fd, struct smbc_dirent *dirp, int count) { struct smbc_file *fe; struct smbc_dir_list *dir; int rem = count, reqd; /* Check that all is ok first ... */ if (!smbc_initialized) { errno = EUCLEAN; return -1; } if (fd < smbc_start_fd || fd >= (smbc_start_fd + smbc_max_fd)) { errno = EBADF; return -1; } fe = smbc_file_table[fd - smbc_start_fd]; if (fe->file != False) { /* FIXME, should be dir, perhaps */ errno = ENOTDIR; return -1; } /* * Now, retrieve the number of entries that will fit in what was passed * We have to figure out if the info is in the list, or we need to * send a request to the server to get the info. */ while ((dir = fe->dir_next)) { struct smbc_dirent *dirent; if (!dir->dirent) { errno = ENOENT; /* Bad error */ return -1; } if (rem < (reqd = (sizeof(struct smbc_dirent) + dir->dirent->namelen + dir->dirent->commentlen + 1))) { if (rem < count) { /* We managed to copy something */ errno = 0; return count - rem; } else { /* Nothing copied ... */ errno = EINVAL; /* Not enough space ... */ return -1; } } dirent = dir->dirent; bcopy(dirent, dirp, reqd); /* Copy the data in ... */ dirp->comment = (char *)(&dirp->name + dirent->namelen + 1); (char *)dirp += reqd; rem -= reqd; fe->dir_next = dir = dir -> next; } if (rem == count) return 0; else return count - rem; } /* * Routine to create a directory ... */ int smbc_mkdir(const char *fname, mode_t mode) { if (!smbc_initialized) { errno = EUCLEAN; return -1; } return 0; } /* * Routine to seek on a directory */ int smbc_lseekdir(int fd, off_t offset, int whence) { if (!smbc_initialized) { errno = EUCLEAN; return -1; } return 0; } /* * Routine to fstat a dir */ int smbc_fstatdir(int fd, struct stat *st) { if (!smbc_initialized) { errno = EUCLEAN; return -1; } return 0; }