2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
6 Copyright (C) Jeremy Allison 2001
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
26 #ifdef WITH_NISPLUS_HOME
27 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
29 * The following lines are needed due to buggy include files
30 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
31 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
32 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
33 * an enum in /usr/include/rpcsvc/nis.h.
40 #if defined(GROUP_OBJ)
44 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
46 #include <rpcsvc/nis.h>
48 #else /* !WITH_NISPLUS_HOME */
50 #include "rpcsvc/ypclnt.h"
52 #endif /* WITH_NISPLUS_HOME */
53 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
56 #include <openssl/ssl.h>
57 #undef Realloc /* SSLeay defines this and samba has a function of this name */
62 int Protocol = PROTOCOL_COREPLUS;
64 /* a default finfo structure to ensure all fields are sensible */
65 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
67 /* this is used by the chaining code */
73 case handling on filenames
75 int case_default = CASE_LOWER;
77 /* the following control case operations - they are put here so the
78 client can link easily */
81 BOOL use_mangled_map = False;
82 BOOL short_case_preserve;
85 static enum remote_arch_types ra_type = RA_UNKNOWN;
86 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
88 pstring global_myname = "";
89 fstring global_myworkgroup = "";
90 char **my_netbios_names;
93 /****************************************************************************
94 find a suitable temporary directory. The result should be copied immediately
95 as it may be overwritten by a subsequent call
96 ****************************************************************************/
100 if ((p = getenv("TMPDIR"))) {
106 /****************************************************************************
107 determine whether we are in the specified group
108 ****************************************************************************/
110 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups)
114 if (group == current_gid) return(True);
116 for (i=0;i<ngroups;i++)
117 if (group == groups[i])
124 /****************************************************************************
125 like atoi but gets the value up to the separater character
126 ****************************************************************************/
127 char *Atoic(char *p, int *n, char *c)
129 if (!isdigit((int)*p))
131 DEBUG(5, ("Atoic: malformed number\n"));
137 while ((*p) && isdigit((int)*p))
142 if (strchr_m(c, *p) == NULL)
144 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
151 /*************************************************************************
152 reads a list of numbers
153 *************************************************************************/
154 char *get_numlist(char *p, uint32 **num, int *count)
158 if (num == NULL || count == NULL)
166 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':')
170 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
177 (*num)[(*count)] = val;
186 /*******************************************************************
187 check if a file exists - call vfs_file_exist for samba files
188 ********************************************************************/
189 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
192 if (!sbuf) sbuf = &st;
194 if (sys_stat(fname,sbuf) != 0)
197 return(S_ISREG(sbuf->st_mode));
200 /*******************************************************************
201 check a files mod time
202 ********************************************************************/
203 time_t file_modtime(char *fname)
207 if (sys_stat(fname,&st) != 0)
213 /*******************************************************************
214 check if a directory exists
215 ********************************************************************/
216 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
223 if (sys_stat(dname,st) != 0)
226 ret = S_ISDIR(st->st_mode);
232 /*******************************************************************
233 returns the size in bytes of the named file
234 ********************************************************************/
235 SMB_OFF_T get_file_size(char *file_name)
239 if(sys_stat(file_name,&buf) != 0)
240 return (SMB_OFF_T)-1;
244 /*******************************************************************
245 return a string representing an attribute for a file
246 ********************************************************************/
247 char *attrib_string(uint16 mode)
249 static fstring attrstr;
253 if (mode & aVOLID) fstrcat(attrstr,"V");
254 if (mode & aDIR) fstrcat(attrstr,"D");
255 if (mode & aARCH) fstrcat(attrstr,"A");
256 if (mode & aHIDDEN) fstrcat(attrstr,"H");
257 if (mode & aSYSTEM) fstrcat(attrstr,"S");
258 if (mode & aRONLY) fstrcat(attrstr,"R");
263 /*******************************************************************
264 show a smb message structure
265 ********************************************************************/
266 void show_msg(char *buf)
271 if (DEBUGLEVEL < 5) return;
273 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
275 (int)CVAL(buf,smb_com),
276 (int)CVAL(buf,smb_rcls),
277 (int)CVAL(buf,smb_reh),
278 (int)SVAL(buf,smb_err),
279 (int)CVAL(buf,smb_flg),
280 (int)SVAL(buf,smb_flg2)));
281 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
282 (int)SVAL(buf,smb_tid),
283 (int)SVAL(buf,smb_pid),
284 (int)SVAL(buf,smb_uid),
285 (int)SVAL(buf,smb_mid),
286 (int)CVAL(buf,smb_wct)));
288 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
290 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
291 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
294 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
296 DEBUG(5,("smb_bcc=%d\n",bcc));
298 if (DEBUGLEVEL < 10) return;
305 dump_data(10, smb_buf(buf), bcc);
308 /*******************************************************************
309 set the length and marker of an smb packet
310 ********************************************************************/
311 void smb_setlen(char *buf,int len)
313 _smb_setlen(buf,len);
321 /*******************************************************************
322 setup the word count and byte count for a smb message
323 ********************************************************************/
324 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
327 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
328 CVAL(buf,smb_wct) = num_words;
329 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
330 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
331 return (smb_size + num_words*2 + num_bytes);
334 /*******************************************************************
335 setup only the byte count for a smb message
336 ********************************************************************/
337 int set_message_bcc(char *buf,int num_bytes)
339 int num_words = CVAL(buf,smb_wct);
340 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
341 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
342 return (smb_size + num_words*2 + num_bytes);
345 /*******************************************************************
346 setup only the byte count for a smb message, using the end of the
348 ********************************************************************/
349 int set_message_end(void *outbuf,void *end_ptr)
351 return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
354 /*******************************************************************
355 reduce a file name, removing .. elements.
356 ********************************************************************/
357 void dos_clean_name(char *s)
361 DEBUG(3,("dos_clean_name [%s]\n",s));
363 /* remove any double slashes */
364 all_string_sub(s, "\\\\", "\\", 0);
366 while ((p = strstr(s,"\\..\\")) != NULL)
373 if ((p=strrchr_m(s,'\\')) != NULL)
380 trim_string(s,NULL,"\\..");
382 all_string_sub(s, "\\.\\", "\\", 0);
385 /*******************************************************************
386 reduce a file name, removing .. elements.
387 ********************************************************************/
388 void unix_clean_name(char *s)
392 DEBUG(3,("unix_clean_name [%s]\n",s));
394 /* remove any double slashes */
395 all_string_sub(s, "//","/", 0);
397 /* Remove leading ./ characters */
398 if(strncmp(s, "./", 2) == 0) {
399 trim_string(s, "./", NULL);
404 while ((p = strstr(s,"/../")) != NULL)
411 if ((p=strrchr_m(s,'/')) != NULL)
418 trim_string(s,NULL,"/..");
421 /****************************************************************************
423 ****************************************************************************/
424 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
431 if ((mode & aDIR) != 0)
434 memset(buf+1,' ',11);
435 if ((p = strchr_m(mask2,'.')) != NULL)
438 push_ascii(buf+1,mask2,8, 0);
439 push_ascii(buf+9,p+1,3, 0);
443 push_ascii(buf+1,mask2,11, 0);
445 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
447 put_dos_date(buf,22,date);
448 SSVAL(buf,26,size & 0xFFFF);
449 SSVAL(buf,28,(size >> 16)&0xFFFF);
450 push_ascii(buf+30,fname,12, 0);
453 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
457 /*******************************************************************
458 close the low 3 fd's and open dev/null in their place
459 ********************************************************************/
460 void close_low_fds(void)
468 /* try and use up these file descriptors, so silly
469 library routines writing to stdout etc won't cause havoc */
471 fd = sys_open("/dev/null",O_RDWR,0);
472 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
474 DEBUG(0,("Can't open /dev/null\n"));
478 DEBUG(0,("Didn't get file descriptor %d\n",i));
484 /****************************************************************************
485 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
489 ****************************************************************************/
490 int set_blocking(int fd, BOOL set)
494 #define FLAG_TO_SET O_NONBLOCK
497 #define FLAG_TO_SET O_NDELAY
499 #define FLAG_TO_SET FNDELAY
503 if((val = fcntl(fd, F_GETFL, 0)) == -1)
505 if(set) /* Turn blocking on - ie. clear nonblock flag */
509 return fcntl( fd, F_SETFL, val);
513 /****************************************************************************
514 Transfer some data between two fd's.
515 ****************************************************************************/
517 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
518 ssize_t (*write_fn)(int, const void *, size_t))
520 static char buf[16384];
523 size_t write_total = 0;
527 size_t num_to_read_thistime = MIN((n - total), sizeof(buf));
529 read_ret = (*read_fn)(infd, buf + total, num_to_read_thistime);
530 if (read_ret == -1) {
531 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
539 while (write_total < read_ret) {
540 write_ret = (*write_fn)(outfd,buf + total, read_ret);
542 if (write_ret == -1) {
543 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
547 return (ssize_t)total;
549 write_total += (size_t)write_ret;
552 total += (size_t)read_ret;
555 return (ssize_t)total;
558 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
560 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, read, write);
563 /*******************************************************************
564 sleep for a specified number of milliseconds
565 ********************************************************************/
569 struct timeval tval,t1,t2;
576 tval.tv_sec = (t-tdiff)/1000;
577 tval.tv_usec = 1000*((t-tdiff)%1000);
581 sys_select_intr(0,&fds,&tval);
584 tdiff = TvalDiff(&t1,&t2);
589 /****************************************************************************
590 become a daemon, discarding the controlling terminal
591 ****************************************************************************/
592 void become_daemon(void)
598 /* detach from the terminal */
601 #elif defined(TIOCNOTTY)
603 int i = sys_open("/dev/tty", O_RDWR, 0);
605 ioctl(i, (int) TIOCNOTTY, (char *)0);
609 #endif /* HAVE_SETSID */
611 /* Close fd's 0,1,2. Needed if started by rsh */
616 /****************************************************************************
617 put up a yes/no prompt
618 ****************************************************************************/
624 if (!fgets(ans,sizeof(ans)-1,stdin))
627 if (*ans == 'y' || *ans == 'Y')
633 /****************************************************************************
634 expand a pointer to be a particular size
635 ****************************************************************************/
636 void *Realloc(void *p,size_t size)
642 DEBUG(5,("Realloc asked for 0 bytes\n"));
647 ret = (void *)malloc(size);
649 ret = (void *)realloc(p,size);
652 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
658 /****************************************************************************
659 free memory, checks for NULL and set to NULL
660 use directly SAFE_FREE()
661 exist only because we need to pass a function pointer somewhere --SSS
662 ****************************************************************************/
663 void safe_free(void *p)
668 /****************************************************************************
669 get my own name and IP
670 ****************************************************************************/
671 BOOL get_myname(char *my_name)
677 /* get my host name */
678 if (gethostname(hostname, sizeof(hostname)) == -1) {
679 DEBUG(0,("gethostname failed\n"));
683 /* Ensure null termination. */
684 hostname[sizeof(hostname)-1] = '\0';
687 /* split off any parts after an initial . */
688 char *p = strchr_m(hostname,'.');
691 fstrcpy(my_name,hostname);
697 /****************************************************************************
698 interpret a protocol description string, with a default
699 ****************************************************************************/
700 int interpret_protocol(char *str,int def)
702 if (strequal(str,"NT1"))
703 return(PROTOCOL_NT1);
704 if (strequal(str,"LANMAN2"))
705 return(PROTOCOL_LANMAN2);
706 if (strequal(str,"LANMAN1"))
707 return(PROTOCOL_LANMAN1);
708 if (strequal(str,"CORE"))
709 return(PROTOCOL_CORE);
710 if (strequal(str,"COREPLUS"))
711 return(PROTOCOL_COREPLUS);
712 if (strequal(str,"CORE+"))
713 return(PROTOCOL_COREPLUS);
715 DEBUG(0,("Unrecognised protocol level %s\n",str));
720 /****************************************************************************
721 Return true if a string could be a pure IP address.
722 ****************************************************************************/
724 BOOL is_ipaddress(const char *str)
726 BOOL pure_address = True;
729 for (i=0; pure_address && str[i]; i++)
730 if (!(isdigit((int)str[i]) || str[i] == '.'))
731 pure_address = False;
733 /* Check that a pure number is not misinterpreted as an IP */
734 pure_address = pure_address && (strchr_m(str, '.') != NULL);
739 /****************************************************************************
740 interpret an internet address or name into an IP address in 4 byte form
741 ****************************************************************************/
743 uint32 interpret_addr(const char *str)
748 if (strcmp(str,"0.0.0.0") == 0) return(0);
749 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
751 /* if it's in the form of an IP address then get the lib to interpret it */
752 if (is_ipaddress(str)) {
753 res = inet_addr(str);
755 /* otherwise assume it's a network name of some sort and use
757 if ((hp = sys_gethostbyname(str)) == 0) {
758 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
761 if(hp->h_addr == NULL) {
762 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
765 putip((char *)&res,(char *)hp->h_addr);
768 if (res == (uint32)-1) return(0);
773 /*******************************************************************
774 a convenient addition to interpret_addr()
775 ******************************************************************/
776 struct in_addr *interpret_addr2(const char *str)
778 static struct in_addr ret;
779 uint32 a = interpret_addr(str);
784 /*******************************************************************
785 check if an IP is the 0.0.0.0
786 ******************************************************************/
787 BOOL zero_ip(struct in_addr ip)
790 putip((char *)&a,(char *)&ip);
795 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
796 /******************************************************************
797 Remove any mount options such as -rsize=2048,wsize=2048 etc.
798 Based on a fix from <Thomas.Hepper@icem.de>.
799 *******************************************************************/
801 static void strip_mount_options( pstring *str)
806 while(*p && !isspace(*p))
808 while(*p && isspace(*p))
814 pstrcpy(*str, tmp_str);
819 /*******************************************************************
820 Patch from jkf@soton.ac.uk
821 Split Luke's automount_server into YP lookup and string splitter
822 so can easily implement automount_path().
823 As we may end up doing both, cache the last YP result.
824 *******************************************************************/
826 #ifdef WITH_NISPLUS_HOME
827 char *automount_lookup(const char *user_name)
829 static fstring last_key = "";
830 static pstring last_value = "";
832 char *nis_map = (char *)lp_nis_home_map_name();
834 char buffer[NIS_MAXATTRVAL + 1];
839 if (strcmp(user_name, last_key))
841 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
842 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
844 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL))
846 if (result->status != NIS_SUCCESS)
848 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
849 fstrcpy(last_key, ""); pstrcpy(last_value, "");
853 object = result->objects.objects_val;
854 if (object->zo_data.zo_type == ENTRY_OBJ)
856 entry = &object->zo_data.objdata_u.en_data;
857 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
858 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
860 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
861 pstring_sub(last_value, "&", user_name);
862 fstrcpy(last_key, user_name);
866 nis_freeresult(result);
869 strip_mount_options(&last_value);
871 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
874 #else /* WITH_NISPLUS_HOME */
875 char *automount_lookup(const char *user_name)
877 static fstring last_key = "";
878 static pstring last_value = "";
880 int nis_error; /* returned by yp all functions */
881 char *nis_result; /* yp_match inits this */
882 int nis_result_len; /* and set this */
883 char *nis_domain; /* yp_get_default_domain inits this */
884 char *nis_map = (char *)lp_nis_home_map_name();
886 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
887 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
891 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
893 if (!strcmp(user_name, last_key)) {
894 nis_result = last_value;
895 nis_result_len = strlen(last_value);
900 if ((nis_error = yp_match(nis_domain, nis_map,
901 user_name, strlen(user_name),
902 &nis_result, &nis_result_len)) == 0) {
903 if (!nis_error && nis_result_len >= sizeof(pstring)) {
904 nis_result_len = sizeof(pstring)-1;
906 fstrcpy(last_key, user_name);
907 strncpy(last_value, nis_result, nis_result_len);
908 last_value[nis_result_len] = '\0';
909 strip_mount_options(&last_value);
911 } else if(nis_error == YPERR_KEY) {
913 /* If Key lookup fails user home server is not in nis_map
914 use default information for server, and home directory */
916 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
917 user_name, nis_map));
918 DEBUG(3, ("using defaults for server and home directory\n"));
920 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
921 yperr_string(nis_error), user_name, nis_map));
926 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
929 #endif /* WITH_NISPLUS_HOME */
933 /*******************************************************************
934 are two IPs on the same subnet?
935 ********************************************************************/
936 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
938 uint32 net1,net2,nmask;
940 nmask = ntohl(mask.s_addr);
941 net1 = ntohl(ip1.s_addr);
942 net2 = ntohl(ip2.s_addr);
944 return((net1 & nmask) == (net2 & nmask));
948 /****************************************************************************
949 check if a process exists. Does this work on all unixes?
950 ****************************************************************************/
952 BOOL process_exists(pid_t pid)
954 return(kill(pid,0) == 0 || errno != ESRCH);
958 /*******************************************************************
959 Convert a uid into a user name.
960 ********************************************************************/
962 char *uidtoname(uid_t uid)
967 if (winbind_uidtoname(name, uid))
970 pass = sys_getpwuid(uid);
971 if (pass) return(pass->pw_name);
972 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
977 /*******************************************************************
978 Convert a gid into a group name.
979 ********************************************************************/
981 char *gidtoname(gid_t gid)
986 if (winbind_gidtoname(name, gid))
990 if (grp) return(grp->gr_name);
991 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
995 /*******************************************************************
996 Convert a user name into a uid. If winbindd is present uses this.
997 ********************************************************************/
999 uid_t nametouid(char *name)
1001 struct passwd *pass;
1005 u = (uid_t)strtol(name, &p, 0);
1006 if ((p != name) && (*p == '\0'))
1009 if (winbind_nametouid(&u, name))
1012 pass = sys_getpwnam(name);
1014 return(pass->pw_uid);
1018 /*******************************************************************
1019 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1020 is present does a shortcut lookup...
1021 ********************************************************************/
1023 gid_t nametogid(const char *name)
1029 g = (gid_t)strtol(name, &p, 0);
1030 if ((p != name) && (*p == '\0'))
1033 if (winbind_nametogid(&g, name))
1036 grp = getgrnam(name);
1038 return(grp->gr_gid);
1042 /*******************************************************************
1043 something really nasty happened - panic!
1044 ********************************************************************/
1045 void smb_panic(char *why)
1047 char *cmd = lp_panic_action();
1051 DEBUG(0,("PANIC: %s\n", why));
1057 /*******************************************************************
1058 a readdir wrapper which just returns the file name
1059 ********************************************************************/
1060 char *readdirname(DIR *p)
1062 SMB_STRUCT_DIRENT *ptr;
1065 if (!p) return(NULL);
1067 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1068 if (!ptr) return(NULL);
1070 dname = ptr->d_name;
1073 if (telldir(p) < 0) return(NULL);
1076 #ifdef HAVE_BROKEN_READDIR
1077 /* using /usr/ucb/cc is BAD */
1083 int len = NAMLEN(ptr);
1084 memcpy(buf, dname, len);
1092 /*******************************************************************
1093 Utility function used to decide if the last component
1094 of a path matches a (possibly wildcarded) entry in a namelist.
1095 ********************************************************************/
1097 BOOL is_in_path(char *name, name_compare_entry *namelist)
1099 pstring last_component;
1102 DEBUG(8, ("is_in_path: %s\n", name));
1104 /* if we have no list it's obviously not in the path */
1105 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1107 DEBUG(8,("is_in_path: no name list.\n"));
1111 /* Get the last component of the unix name. */
1112 p = strrchr_m(name, '/');
1113 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1114 last_component[sizeof(last_component)-1] = '\0';
1116 for(; namelist->name != NULL; namelist++)
1118 if(namelist->is_wild)
1120 if (mask_match(last_component, namelist->name, case_sensitive))
1122 DEBUG(8,("is_in_path: mask match succeeded\n"));
1128 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1129 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1131 DEBUG(8,("is_in_path: match succeeded\n"));
1136 DEBUG(8,("is_in_path: match not found\n"));
1141 /*******************************************************************
1142 Strip a '/' separated list into an array of
1143 name_compare_enties structures suitable for
1144 passing to is_in_path(). We do this for
1145 speed so we can pre-parse all the names in the list
1146 and don't do it for each call to is_in_path().
1147 namelist is modified here and is assumed to be
1148 a copy owned by the caller.
1149 We also check if the entry contains a wildcard to
1150 remove a potentially expensive call to mask_match
1152 ********************************************************************/
1154 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1157 char *nameptr = namelist;
1158 int num_entries = 0;
1161 (*ppname_array) = NULL;
1163 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1166 /* We need to make two passes over the string. The
1167 first to count the number of elements, the second
1172 if ( *nameptr == '/' )
1174 /* cope with multiple (useless) /s) */
1178 /* find the next / */
1179 name_end = strchr_m(nameptr, '/');
1181 /* oops - the last check for a / didn't find one. */
1182 if (name_end == NULL)
1185 /* next segment please */
1186 nameptr = name_end + 1;
1190 if(num_entries == 0)
1193 if(( (*ppname_array) = (name_compare_entry *)malloc(
1194 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1196 DEBUG(0,("set_namearray: malloc fail\n"));
1200 /* Now copy out the names */
1205 if ( *nameptr == '/' )
1207 /* cope with multiple (useless) /s) */
1211 /* find the next / */
1212 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1217 /* oops - the last check for a / didn't find one. */
1218 if(name_end == NULL)
1221 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1222 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1224 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1228 /* next segment please */
1229 nameptr = name_end + 1;
1233 (*ppname_array)[i].name = NULL;
1238 /****************************************************************************
1239 routine to free a namearray.
1240 ****************************************************************************/
1242 void free_namearray(name_compare_entry *name_array)
1244 if(name_array == NULL)
1247 SAFE_FREE(name_array->name);
1248 SAFE_FREE(name_array);
1251 /****************************************************************************
1252 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1253 is dealt with in posix.c
1254 ****************************************************************************/
1256 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1258 SMB_STRUCT_FLOCK lock;
1261 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1264 lock.l_whence = SEEK_SET;
1265 lock.l_start = offset;
1271 ret = fcntl(fd,op,&lock);
1274 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1277 if (op == SMB_F_GETLK)
1280 (lock.l_type != F_UNLCK) &&
1281 (lock.l_pid != 0) &&
1282 (lock.l_pid != sys_getpid()))
1284 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1288 /* it must be not locked or locked by me */
1292 /* a lock set or unset */
1295 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1296 (double)offset,(double)count,op,type,strerror(errno)));
1300 /* everything went OK */
1301 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1306 /*******************************************************************
1307 is the name specified one of my netbios names
1308 returns true is it is equal, false otherwise
1309 ********************************************************************/
1310 BOOL is_myname(char *s)
1315 for (n=0; my_netbios_names[n]; n++) {
1316 if (strequal(my_netbios_names[n], s))
1319 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1323 /*******************************************************************
1324 set the horrid remote_arch string based on an enum.
1325 ********************************************************************/
1326 void set_remote_arch(enum remote_arch_types type)
1328 extern fstring remote_arch;
1333 fstrcpy(remote_arch, "WfWg");
1336 fstrcpy(remote_arch, "OS2");
1339 fstrcpy(remote_arch, "Win95");
1342 fstrcpy(remote_arch, "WinNT");
1345 fstrcpy(remote_arch, "Win2K");
1348 fstrcpy(remote_arch,"Samba");
1351 ra_type = RA_UNKNOWN;
1352 fstrcpy(remote_arch, "UNKNOWN");
1357 /*******************************************************************
1358 Get the remote_arch type.
1359 ********************************************************************/
1360 enum remote_arch_types get_remote_arch(void)
1366 void out_ascii(FILE *f, unsigned char *buf,int len)
1371 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1375 void out_data(FILE *f,char *buf1,int len, int per_line)
1377 unsigned char *buf = (unsigned char *)buf1;
1384 fprintf(f, "[%03X] ",i);
1387 fprintf(f, "%02X ",(int)buf[i]);
1389 if (i%(per_line/2) == 0) fprintf(f, " ");
1390 if (i%per_line == 0)
1392 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1393 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1394 if (i<len) fprintf(f, "[%03X] ",i);
1397 if ((i%per_line) != 0)
1401 n = per_line - (i%per_line);
1403 if (n>(per_line/2)) fprintf(f, " ");
1408 n = MIN(per_line/2,i%per_line);
1409 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1410 n = (i%per_line) - n;
1411 if (n>0) out_ascii(f,&buf[i-n],n);
1416 void print_asc(int level, const unsigned char *buf,int len)
1420 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1423 void dump_data(int level, const char *buf1,int len)
1425 const unsigned char *buf = (const unsigned char *)buf1;
1429 DEBUG(level,("[%03X] ",i));
1431 DEBUG(level,("%02X ",(int)buf[i]));
1433 if (i%8 == 0) DEBUG(level,(" "));
1435 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1436 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1437 if (i<len) DEBUG(level,("[%03X] ",i));
1445 if (n>8) DEBUG(level,(" "));
1446 while (n--) DEBUG(level,(" "));
1449 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1451 if (n>0) print_asc(level,&buf[i-n],n);
1452 DEBUG(level,("\n"));
1456 char *tab_depth(int depth)
1458 static pstring spaces;
1459 memset(spaces, ' ', depth * 4);
1460 spaces[depth * 4] = 0;
1464 /*****************************************************************************
1465 * Provide a checksum on a string
1467 * Input: s - the null-terminated character string for which the checksum
1468 * will be calculated.
1470 * Output: The checksum value calculated for s.
1472 * ****************************************************************************
1474 int str_checksum(const char *s)
1482 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1487 } /* str_checksum */
1491 /*****************************************************************
1492 zero a memory area then free it. Used to catch bugs faster
1493 *****************************************************************/
1494 void zero_free(void *p, size_t size)
1501 /*****************************************************************
1502 set our open file limit to a requested max and return the limit
1503 *****************************************************************/
1504 int set_maxfiles(int requested_max)
1506 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1508 int saved_current_limit;
1510 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1511 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1514 return requested_max;
1518 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1519 * account for the extra fd we need
1520 * as well as the log files and standard
1521 * handles etc. Save the limit we want to set in case
1522 * we are running on an OS that doesn't support this limit (AIX)
1523 * which always returns RLIM_INFINITY for rlp.rlim_max.
1526 /* Try raising the hard (max) limit to the requested amount. */
1528 #if defined(RLIM_INFINITY)
1529 if (rlp.rlim_max != RLIM_INFINITY) {
1530 int orig_max = rlp.rlim_max;
1532 if ( rlp.rlim_max < requested_max )
1533 rlp.rlim_max = requested_max;
1535 /* This failing is not an error - many systems (Linux) don't
1536 support our default request of 10,000 open files. JRA. */
1538 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1539 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1540 (int)rlp.rlim_max, strerror(errno) ));
1542 /* Set failed - restore original value from get. */
1543 rlp.rlim_max = orig_max;
1548 /* Now try setting the soft (current) limit. */
1550 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1552 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1553 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1554 (int)rlp.rlim_cur, strerror(errno) ));
1556 return saved_current_limit;
1559 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1560 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1563 return saved_current_limit;
1566 #if defined(RLIM_INFINITY)
1567 if(rlp.rlim_cur == RLIM_INFINITY)
1568 return saved_current_limit;
1571 if((int)rlp.rlim_cur > saved_current_limit)
1572 return saved_current_limit;
1574 return rlp.rlim_cur;
1575 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1577 * No way to know - just guess...
1579 return requested_max;
1583 /*****************************************************************
1584 splits out the start of the key (HKLM or HKU) and the rest of the key
1585 *****************************************************************/
1586 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1590 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1597 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1599 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1601 (*reg_type) = HKEY_LOCAL_MACHINE;
1603 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1605 (*reg_type) = HKEY_USERS;
1609 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1613 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
1615 fstrcpy(key_name, tmp);
1622 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1628 /*****************************************************************
1629 possibly replace mkstemp if it is broken
1630 *****************************************************************/
1631 int smb_mkstemp(char *template)
1633 #if HAVE_SECURE_MKSTEMP
1634 return mkstemp(template);
1636 /* have a reasonable go at emulating it. Hope that
1637 the system mktemp() isn't completly hopeless */
1638 char *p = mktemp(template);
1640 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
1644 /*****************************************************************
1645 malloc that aborts with smb_panic on fail or zero size.
1646 *****************************************************************/
1648 void *xmalloc(size_t size)
1652 smb_panic("xmalloc: called with zero size.\n");
1653 if ((p = malloc(size)) == NULL)
1654 smb_panic("xmalloc: malloc fail.\n");
1658 /*****************************************************************
1659 Memdup with smb_panic on fail.
1660 *****************************************************************/
1662 void *xmemdup(void *p, size_t size)
1666 memcpy(p2, p, size);
1670 /*****************************************************************
1671 strdup that aborts on malloc fail.
1672 *****************************************************************/
1674 char *xstrdup(const char *s)
1676 char *s1 = strdup(s);
1678 smb_panic("xstrdup: malloc fail\n");
1682 /*****************************************************************
1683 like strdup but for memory
1684 *****************************************************************/
1685 void *memdup(void *p, size_t size)
1688 if (size == 0) return NULL;
1690 if (!p2) return NULL;
1691 memcpy(p2, p, size);
1695 /*****************************************************************
1696 get local hostname and cache result
1697 *****************************************************************/
1698 char *myhostname(void)
1708 /*****************************************************************
1709 a useful function for returning a path in the Samba lock directory
1710 *****************************************************************/
1711 char *lock_path(char *name)
1713 static pstring fname;
1715 pstrcpy(fname,lp_lockdir());
1716 trim_string(fname,"","/");
1718 if (!directory_exist(fname,NULL)) {
1723 pstrcat(fname,name);
1728 /*****************************************************************
1729 a useful function for returning a path in the Samba lib directory
1730 *****************************************************************/
1731 char *lib_path(char *name)
1733 static pstring fname;
1734 snprintf(fname, sizeof(fname), "%s/%s", LIBDIR, name);
1738 /*******************************************************************
1739 Given a filename - get its directory name
1740 NB: Returned in static storage. Caveats:
1741 o Not safe in thread environment.
1742 o Caller must not free.
1743 o If caller wishes to preserve, they should copy.
1744 ********************************************************************/
1746 char *parent_dirname(const char *path)
1748 static pstring dirpath;
1754 pstrcpy(dirpath, path);
1755 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
1757 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1760 ++p; /* For root "/", leave "/" in place */
1767 /*******************************************************************
1768 determine if a pattern contains any Microsoft wildcard characters
1769 *******************************************************************/
1770 BOOL ms_has_wild(char *s)
1773 while ((c = *s++)) {
1786 /*******************************************************************
1787 a wrapper that handles case sensitivity and the special handling
1789 *******************************************************************/
1790 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1794 if (strcmp(string,"..") == 0) string = ".";
1795 if (strcmp(pattern,".") == 0) return False;
1797 if (is_case_sensitive) {
1798 return ms_fnmatch(pattern, string, Protocol) == 0;
1801 fstrcpy(p2, pattern);
1802 fstrcpy(s2, string);
1805 return ms_fnmatch(p2, s2, Protocol) == 0;
1808 /*********************************************************
1809 Recursive routine that is called by unix_wild_match.
1810 *********************************************************/
1812 static BOOL unix_do_match(char *regexp, char *str)
1816 for( p = regexp; *p && *str; ) {
1827 * Look for a character matching
1828 * the one after the '*'.
1832 return True; /* Automatic match */
1835 while(*str && (*p != *str))
1839 * Patch from weidel@multichart.de. In the case of the regexp
1840 * '*XX*' we want to ensure there are at least 2 'X' characters
1841 * in the string after the '*' for a match to be made.
1848 * Eat all the characters that match, but count how many there were.
1851 while(*str && (*p == *str)) {
1857 * Now check that if the regexp had n identical characters that
1858 * matchcount had at least that many matches.
1861 while ( *(p+1) && (*(p+1) == *p)) {
1866 if ( matchcount <= 0 )
1870 str--; /* We've eaten the match char after the '*' */
1872 if(unix_do_match(p, str))
1894 if (!*p && str[0] == '.' && str[1] == 0)
1897 if (!*str && *p == '?') {
1903 if(!*str && (*p == '*' && p[1] == '\0'))
1909 /*******************************************************************
1910 Simple case insensitive interface to a UNIX wildcard matcher.
1911 *******************************************************************/
1913 BOOL unix_wild_match(char *pattern, char *string)
1918 pstrcpy(p2, pattern);
1919 pstrcpy(s2, string);
1923 /* Remove any *? and ** from the pattern as they are meaningless */
1924 for(p = p2; *p; p++)
1925 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
1926 pstrcpy( &p[1], &p[2]);
1928 if (strequal(p2,"*"))
1931 return unix_do_match(p2, s2) == 0;
1934 /*******************************************************************
1935 construct a data blob, must be freed with data_blob_free()
1936 *******************************************************************/
1937 DATA_BLOB data_blob(void *p, size_t length)
1941 if (!p || !length) {
1946 ret.data = xmemdup(p, length);
1947 ret.length = length;
1951 /*******************************************************************
1953 *******************************************************************/
1954 void data_blob_free(DATA_BLOB *d)
1962 /*******************************************************************
1963 This routine is a trick to immediately catch errors when debugging
1964 with insure. A xterm with a gdb is popped up when insure catches
1965 a error. It is Linux specific.
1966 ********************************************************************/
1967 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
1972 pstring cmd = "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'";
1974 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
1975 pstring_sub(cmd, "%d", pidstr);
1979 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
1980 fn = dlsym(h, "_Insure_trap_error");
1983 ret = fn(a1, a2, a3, a4, a5, a6);