2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2002
6 Copyright (C) Simo Sorce 2001
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
27 #ifdef WITH_NISPLUS_HOME
28 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
30 * The following lines are needed due to buggy include files
31 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
32 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
33 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
34 * an enum in /usr/include/rpcsvc/nis.h.
41 #if defined(GROUP_OBJ)
45 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
47 #include <rpcsvc/nis.h>
49 #else /* !WITH_NISPLUS_HOME */
51 #include "rpcsvc/ypclnt.h"
53 #endif /* WITH_NISPLUS_HOME */
54 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
56 int Protocol = PROTOCOL_COREPLUS;
58 /* a default finfo structure to ensure all fields are sensible */
59 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
61 /* this is used by the chaining code */
66 static enum remote_arch_types ra_type = RA_UNKNOWN;
67 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
69 /***********************************************************************
70 Definitions for all names.
71 ***********************************************************************/
73 static char *smb_myname;
74 static char *smb_myworkgroup;
75 static char *smb_scope;
76 static int smb_num_netbios_names;
77 static char **smb_my_netbios_names;
79 /***********************************************************************
80 Allocate and set myname. Ensure upper case.
81 ***********************************************************************/
83 BOOL set_global_myname(const char *myname)
85 SAFE_FREE(smb_myname);
86 smb_myname = strdup(myname);
89 strupper_m(smb_myname);
93 const char *global_myname(void)
98 /***********************************************************************
99 Allocate and set myworkgroup. Ensure upper case.
100 ***********************************************************************/
102 BOOL set_global_myworkgroup(const char *myworkgroup)
104 SAFE_FREE(smb_myworkgroup);
105 smb_myworkgroup = strdup(myworkgroup);
106 if (!smb_myworkgroup)
108 strupper_m(smb_myworkgroup);
112 const char *lp_workgroup(void)
114 return smb_myworkgroup;
117 /***********************************************************************
118 Allocate and set scope. Ensure upper case.
119 ***********************************************************************/
121 BOOL set_global_scope(const char *scope)
123 SAFE_FREE(smb_scope);
124 smb_scope = strdup(scope);
127 strupper_m(smb_scope);
131 /*********************************************************************
132 Ensure scope is never null string.
133 *********************************************************************/
135 const char *global_scope(void)
138 set_global_scope("");
142 static void free_netbios_names_array(void)
146 for (i = 0; i < smb_num_netbios_names; i++)
147 SAFE_FREE(smb_my_netbios_names[i]);
149 SAFE_FREE(smb_my_netbios_names);
150 smb_num_netbios_names = 0;
153 static BOOL allocate_my_netbios_names_array(size_t number)
155 free_netbios_names_array();
157 smb_num_netbios_names = number + 1;
158 smb_my_netbios_names = (char **)malloc( sizeof(char *) * smb_num_netbios_names );
160 if (!smb_my_netbios_names)
163 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
167 static BOOL set_my_netbios_names(const char *name, int i)
169 SAFE_FREE(smb_my_netbios_names[i]);
171 smb_my_netbios_names[i] = strdup(name);
172 if (!smb_my_netbios_names[i])
174 strupper_m(smb_my_netbios_names[i]);
178 const char *my_netbios_names(int i)
180 return smb_my_netbios_names[i];
183 BOOL set_netbios_aliases(const char **str_array)
187 /* Work out the max number of netbios aliases that we have */
188 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
191 if ( global_myname() && *global_myname())
194 /* Allocate space for the netbios aliases */
195 if (!allocate_my_netbios_names_array(namecount))
198 /* Use the global_myname string first */
200 if ( global_myname() && *global_myname()) {
201 set_my_netbios_names( global_myname(), namecount );
207 for ( i = 0; str_array[i] != NULL; i++) {
209 BOOL duplicate = False;
211 /* Look for duplicates */
212 for( n=0; n<namecount; n++ ) {
213 if( strequal( str_array[i], my_netbios_names(n) ) ) {
219 if (!set_my_netbios_names(str_array[i], namecount))
228 /****************************************************************************
229 Common name initialization code.
230 ****************************************************************************/
232 BOOL init_names(void)
234 extern fstring local_machine;
238 if (global_myname() == NULL || *global_myname() == '\0') {
239 if (!set_global_myname(myhostname())) {
240 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
245 if (!set_netbios_aliases(lp_netbios_aliases())) {
246 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
250 fstrcpy( local_machine, global_myname() );
251 trim_char( local_machine, ' ', ' ' );
252 p = strchr( local_machine, ' ' );
255 strlower_m( local_machine );
257 DEBUG( 5, ("Netbios name list:-\n") );
258 for( n=0; my_netbios_names(n); n++ )
259 DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names(n) ) );
264 /**************************************************************************n
265 Find a suitable temporary directory. The result should be copied immediately
266 as it may be overwritten by a subsequent call.
267 ****************************************************************************/
269 const char *tmpdir(void)
272 if ((p = getenv("TMPDIR")))
277 /****************************************************************************
278 Determine whether we are in the specified group.
279 ****************************************************************************/
281 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, const gid_t *groups)
285 if (group == current_gid)
288 for (i=0;i<ngroups;i++)
289 if (group == groups[i])
295 /****************************************************************************
296 Like atoi but gets the value up to the separator character.
297 ****************************************************************************/
299 static const char *Atoic(const char *p, int *n, const char *c)
301 if (!isdigit((int)*p)) {
302 DEBUG(5, ("Atoic: malformed number\n"));
308 while ((*p) && isdigit((int)*p))
311 if (strchr_m(c, *p) == NULL) {
312 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
319 /*************************************************************************
320 Reads a list of numbers.
321 *************************************************************************/
323 const char *get_numlist(const char *p, uint32 **num, int *count)
327 if (num == NULL || count == NULL)
333 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':') {
336 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
342 (*num)[(*count)] = val;
350 /*******************************************************************
351 Check if a file exists - call vfs_file_exist for samba files.
352 ********************************************************************/
354 BOOL file_exist(const char *fname,SMB_STRUCT_STAT *sbuf)
360 if (sys_stat(fname,sbuf) != 0)
363 return((S_ISREG(sbuf->st_mode)) || (S_ISFIFO(sbuf->st_mode)));
366 /*******************************************************************
367 Check a files mod time.
368 ********************************************************************/
370 time_t file_modtime(const char *fname)
374 if (sys_stat(fname,&st) != 0)
380 /*******************************************************************
381 Check if a directory exists.
382 ********************************************************************/
384 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
392 if (sys_stat(dname,st) != 0)
395 ret = S_ISDIR(st->st_mode);
401 /*******************************************************************
402 Returns the size in bytes of the named file.
403 ********************************************************************/
405 SMB_OFF_T get_file_size(char *file_name)
409 if(sys_stat(file_name,&buf) != 0)
410 return (SMB_OFF_T)-1;
414 /*******************************************************************
415 Return a string representing an attribute for a file.
416 ********************************************************************/
418 char *attrib_string(uint16 mode)
420 static fstring attrstr;
424 if (mode & aVOLID) fstrcat(attrstr,"V");
425 if (mode & aDIR) fstrcat(attrstr,"D");
426 if (mode & aARCH) fstrcat(attrstr,"A");
427 if (mode & aHIDDEN) fstrcat(attrstr,"H");
428 if (mode & aSYSTEM) fstrcat(attrstr,"S");
429 if (mode & aRONLY) fstrcat(attrstr,"R");
434 /*******************************************************************
435 Show a smb message structure.
436 ********************************************************************/
438 void show_msg(char *buf)
446 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
448 (int)CVAL(buf,smb_com),
449 (int)CVAL(buf,smb_rcls),
450 (int)CVAL(buf,smb_reh),
451 (int)SVAL(buf,smb_err),
452 (int)CVAL(buf,smb_flg),
453 (int)SVAL(buf,smb_flg2)));
454 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
455 (int)SVAL(buf,smb_tid),
456 (int)SVAL(buf,smb_pid),
457 (int)SVAL(buf,smb_uid),
458 (int)SVAL(buf,smb_mid)));
459 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
461 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
462 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
463 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
465 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
467 DEBUGADD(5,("smb_bcc=%d\n",bcc));
475 dump_data(10, smb_buf(buf), bcc);
478 /*******************************************************************
479 Set the length and marker of an smb packet.
480 ********************************************************************/
482 void smb_setlen(char *buf,int len)
484 _smb_setlen(buf,len);
492 /*******************************************************************
493 Setup the word count and byte count for a smb message.
494 ********************************************************************/
496 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
499 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
500 SCVAL(buf,smb_wct,num_words);
501 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
502 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
503 return (smb_size + num_words*2 + num_bytes);
506 /*******************************************************************
507 Setup only the byte count for a smb message.
508 ********************************************************************/
510 int set_message_bcc(char *buf,int num_bytes)
512 int num_words = CVAL(buf,smb_wct);
513 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
514 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
515 return (smb_size + num_words*2 + num_bytes);
518 /*******************************************************************
519 Setup only the byte count for a smb message, using the end of the
521 ********************************************************************/
523 int set_message_end(void *outbuf,void *end_ptr)
525 return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
528 /*******************************************************************
529 Reduce a file name, removing .. elements.
530 ********************************************************************/
532 void dos_clean_name(char *s)
536 DEBUG(3,("dos_clean_name [%s]\n",s));
538 /* remove any double slashes */
539 all_string_sub(s, "\\\\", "\\", 0);
541 while ((p = strstr_m(s,"\\..\\")) != NULL) {
547 if ((p=strrchr_m(s,'\\')) != NULL)
554 trim_string(s,NULL,"\\..");
556 all_string_sub(s, "\\.\\", "\\", 0);
559 /*******************************************************************
560 Reduce a file name, removing .. elements.
561 ********************************************************************/
563 void unix_clean_name(char *s)
567 DEBUG(3,("unix_clean_name [%s]\n",s));
569 /* remove any double slashes */
570 all_string_sub(s, "//","/", 0);
572 /* Remove leading ./ characters */
573 if(strncmp(s, "./", 2) == 0) {
574 trim_string(s, "./", NULL);
579 while ((p = strstr_m(s,"/../")) != NULL) {
585 if ((p=strrchr_m(s,'/')) != NULL)
592 trim_string(s,NULL,"/..");
595 /****************************************************************************
597 ****************************************************************************/
599 void make_dir_struct(char *buf, const char *mask, const char *fname,SMB_OFF_T size,int mode,time_t date, BOOL case_sensitive)
606 if ((mode & aDIR) != 0)
609 memset(buf+1,' ',11);
610 if ((p = strchr_m(mask2,'.')) != NULL) {
612 push_ascii(buf+1,mask2,8, 0);
613 push_ascii(buf+9,p+1,3, 0);
616 push_ascii(buf+1,mask2,11, 0);
618 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
620 put_dos_date(buf,22,date);
621 SSVAL(buf,26,size & 0xFFFF);
622 SSVAL(buf,28,(size >> 16)&0xFFFF);
623 push_ascii(buf+30,fname,12, case_sensitive ? 0 : STR_UPPER);
624 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
627 /*******************************************************************
628 Close the low 3 fd's and open dev/null in their place.
629 ********************************************************************/
631 void close_low_fds(BOOL stderr_too)
643 /* try and use up these file descriptors, so silly
644 library routines writing to stdout etc won't cause havoc */
646 if (i == 2 && !stderr_too)
649 fd = sys_open("/dev/null",O_RDWR,0);
651 fd = sys_open("/dev/null",O_WRONLY,0);
653 DEBUG(0,("Can't open /dev/null\n"));
657 DEBUG(0,("Didn't get file descriptor %d\n",i));
664 /****************************************************************************
665 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
669 ****************************************************************************/
671 int set_blocking(int fd, BOOL set)
675 #define FLAG_TO_SET O_NONBLOCK
678 #define FLAG_TO_SET O_NDELAY
680 #define FLAG_TO_SET FNDELAY
684 if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
686 if(set) /* Turn blocking on - ie. clear nonblock flag */
690 return sys_fcntl_long( fd, F_SETFL, val);
694 /****************************************************************************
695 Transfer some data between two fd's.
696 ****************************************************************************/
698 #ifndef TRANSFER_BUF_SIZE
699 #define TRANSFER_BUF_SIZE 65536
702 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
703 ssize_t (*write_fn)(int, const void *, size_t))
709 size_t num_to_read_thistime;
710 size_t num_written = 0;
712 if ((buf = malloc(TRANSFER_BUF_SIZE)) == NULL)
716 num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
718 read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
719 if (read_ret == -1) {
720 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
729 while (num_written < read_ret) {
730 write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
732 if (write_ret == -1) {
733 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
738 return (ssize_t)total;
740 num_written += (size_t)write_ret;
743 total += (size_t)read_ret;
747 return (ssize_t)total;
750 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
752 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
755 /*******************************************************************
756 Sleep for a specified number of milliseconds.
757 ********************************************************************/
759 void smb_msleep(unsigned int t)
761 unsigned int tdiff=0;
762 struct timeval tval,t1,t2;
769 tval.tv_sec = (t-tdiff)/1000;
770 tval.tv_usec = 1000*((t-tdiff)%1000);
772 /* Never wait for more than 1 sec. */
773 if (tval.tv_sec > 1) {
780 sys_select_intr(0,&fds,NULL,NULL,&tval);
783 if (t2.tv_sec < t1.tv_sec) {
784 /* Someone adjusted time... */
788 tdiff = TvalDiff(&t1,&t2);
792 /****************************************************************************
793 Become a daemon, discarding the controlling terminal.
794 ****************************************************************************/
796 void become_daemon(BOOL Fork)
804 /* detach from the terminal */
807 #elif defined(TIOCNOTTY)
809 int i = sys_open("/dev/tty", O_RDWR, 0);
811 ioctl(i, (int) TIOCNOTTY, (char *)0);
815 #endif /* HAVE_SETSID */
817 /* Close fd's 0,1,2. Needed if started by rsh */
818 close_low_fds(False); /* Don't close stderr, let the debug system
819 attach it to the logfile */
822 /****************************************************************************
823 Put up a yes/no prompt.
824 ****************************************************************************/
831 if (!fgets(ans,sizeof(ans)-1,stdin))
834 if (*ans == 'y' || *ans == 'Y')
840 /****************************************************************************
841 Expand a pointer to be a particular size.
842 ****************************************************************************/
844 void *Realloc(void *p,size_t size)
850 DEBUG(5,("Realloc asked for 0 bytes\n"));
855 ret = (void *)malloc(size);
857 ret = (void *)realloc(p,size);
860 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
865 void *Realloc_zero(void *ptr, size_t size)
869 tptr = Realloc(ptr, size);
873 memset((char *)tptr,'\0',size);
878 /****************************************************************************
879 Free memory, checks for NULL.
880 Use directly SAFE_FREE()
881 Exists only because we need to pass a function pointer somewhere --SSS
882 ****************************************************************************/
884 void safe_free(void *p)
889 /****************************************************************************
890 Get my own name and IP.
891 ****************************************************************************/
893 BOOL get_myname(char *my_name)
899 /* get my host name */
900 if (gethostname(hostname, sizeof(hostname)) == -1) {
901 DEBUG(0,("gethostname failed\n"));
905 /* Ensure null termination. */
906 hostname[sizeof(hostname)-1] = '\0';
909 /* split off any parts after an initial . */
910 char *p = strchr_m(hostname,'.');
915 fstrcpy(my_name,hostname);
921 /****************************************************************************
922 Get my own canonical name, including domain.
923 ****************************************************************************/
925 BOOL get_mydnsfullname(fstring my_dnsname)
927 static fstring dnshostname;
931 /* get my host name */
932 if (gethostname(dnshostname, sizeof(dnshostname)) == -1) {
934 DEBUG(0,("gethostname failed\n"));
938 /* Ensure null termination. */
939 dnshostname[sizeof(dnshostname)-1] = '\0';
941 /* Ensure we get the cannonical name. */
942 if (!(hp = sys_gethostbyname(dnshostname))) {
946 fstrcpy(dnshostname, hp->h_name);
948 fstrcpy(my_dnsname, dnshostname);
952 /****************************************************************************
953 Get my own domain name.
954 ****************************************************************************/
956 BOOL get_mydnsdomname(fstring my_domname)
962 if (!get_mydnsfullname(domname)) {
965 p = strchr_m(domname, '.');
968 fstrcpy(my_domname, p);
974 /****************************************************************************
975 Interpret a protocol description string, with a default.
976 ****************************************************************************/
978 int interpret_protocol(const char *str,int def)
980 if (strequal(str,"NT1"))
981 return(PROTOCOL_NT1);
982 if (strequal(str,"LANMAN2"))
983 return(PROTOCOL_LANMAN2);
984 if (strequal(str,"LANMAN1"))
985 return(PROTOCOL_LANMAN1);
986 if (strequal(str,"CORE"))
987 return(PROTOCOL_CORE);
988 if (strequal(str,"COREPLUS"))
989 return(PROTOCOL_COREPLUS);
990 if (strequal(str,"CORE+"))
991 return(PROTOCOL_COREPLUS);
993 DEBUG(0,("Unrecognised protocol level %s\n",str));
998 /****************************************************************************
999 Return true if a string could be a pure IP address.
1000 ****************************************************************************/
1002 BOOL is_ipaddress(const char *str)
1004 BOOL pure_address = True;
1007 for (i=0; pure_address && str[i]; i++)
1008 if (!(isdigit((int)str[i]) || str[i] == '.'))
1009 pure_address = False;
1011 /* Check that a pure number is not misinterpreted as an IP */
1012 pure_address = pure_address && (strchr_m(str, '.') != NULL);
1014 return pure_address;
1017 /****************************************************************************
1018 Interpret an internet address or name into an IP address in 4 byte form.
1019 ****************************************************************************/
1021 uint32 interpret_addr(const char *str)
1026 if (strcmp(str,"0.0.0.0") == 0)
1028 if (strcmp(str,"255.255.255.255") == 0)
1031 /* if it's in the form of an IP address then get the lib to interpret it */
1032 if (is_ipaddress(str)) {
1033 res = inet_addr(str);
1035 /* otherwise assume it's a network name of some sort and use
1036 sys_gethostbyname */
1037 if ((hp = sys_gethostbyname(str)) == 0) {
1038 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
1042 if(hp->h_addr == NULL) {
1043 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
1046 putip((char *)&res,(char *)hp->h_addr);
1049 if (res == (uint32)-1)
1055 /*******************************************************************
1056 A convenient addition to interpret_addr().
1057 ******************************************************************/
1059 struct in_addr *interpret_addr2(const char *str)
1061 static struct in_addr ret;
1062 uint32 a = interpret_addr(str);
1067 /*******************************************************************
1068 Check if an IP is the 0.0.0.0.
1069 ******************************************************************/
1071 BOOL is_zero_ip(struct in_addr ip)
1074 putip((char *)&a,(char *)&ip);
1078 /*******************************************************************
1079 Set an IP to 0.0.0.0.
1080 ******************************************************************/
1082 void zero_ip(struct in_addr *ip)
1085 static struct in_addr ipzero;
1088 ipzero = *interpret_addr2("0.0.0.0");
1095 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1096 /******************************************************************
1097 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1098 Based on a fix from <Thomas.Hepper@icem.de>.
1099 *******************************************************************/
1101 static void strip_mount_options( pstring *str)
1105 while(*p && !isspace(*p))
1107 while(*p && isspace(*p))
1112 pstrcpy(tmp_str, p);
1113 pstrcpy(*str, tmp_str);
1118 /*******************************************************************
1119 Patch from jkf@soton.ac.uk
1120 Split Luke's automount_server into YP lookup and string splitter
1121 so can easily implement automount_path().
1122 As we may end up doing both, cache the last YP result.
1123 *******************************************************************/
1125 #ifdef WITH_NISPLUS_HOME
1126 char *automount_lookup(const char *user_name)
1128 static fstring last_key = "";
1129 static pstring last_value = "";
1131 char *nis_map = (char *)lp_nis_home_map_name();
1133 char buffer[NIS_MAXATTRVAL + 1];
1138 if (strcmp(user_name, last_key)) {
1139 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
1140 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1142 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1143 if (result->status != NIS_SUCCESS) {
1144 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1145 fstrcpy(last_key, ""); pstrcpy(last_value, "");
1147 object = result->objects.objects_val;
1148 if (object->zo_data.zo_type == ENTRY_OBJ) {
1149 entry = &object->zo_data.objdata_u.en_data;
1150 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1151 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1153 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1154 pstring_sub(last_value, "&", user_name);
1155 fstrcpy(last_key, user_name);
1159 nis_freeresult(result);
1162 strip_mount_options(&last_value);
1164 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
1167 #else /* WITH_NISPLUS_HOME */
1169 char *automount_lookup(const char *user_name)
1171 static fstring last_key = "";
1172 static pstring last_value = "";
1174 int nis_error; /* returned by yp all functions */
1175 char *nis_result; /* yp_match inits this */
1176 int nis_result_len; /* and set this */
1177 char *nis_domain; /* yp_get_default_domain inits this */
1178 char *nis_map = (char *)lp_nis_home_map_name();
1180 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1181 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1185 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1187 if (!strcmp(user_name, last_key)) {
1188 nis_result = last_value;
1189 nis_result_len = strlen(last_value);
1192 if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
1193 &nis_result, &nis_result_len)) == 0) {
1194 if (!nis_error && nis_result_len >= sizeof(pstring)) {
1195 nis_result_len = sizeof(pstring)-1;
1197 fstrcpy(last_key, user_name);
1198 strncpy(last_value, nis_result, nis_result_len);
1199 last_value[nis_result_len] = '\0';
1200 strip_mount_options(&last_value);
1202 } else if(nis_error == YPERR_KEY) {
1204 /* If Key lookup fails user home server is not in nis_map
1205 use default information for server, and home directory */
1207 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1208 user_name, nis_map));
1209 DEBUG(3, ("using defaults for server and home directory\n"));
1211 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1212 yperr_string(nis_error), user_name, nis_map));
1216 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
1219 #endif /* WITH_NISPLUS_HOME */
1222 /*******************************************************************
1223 Are two IPs on the same subnet?
1224 ********************************************************************/
1226 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
1228 uint32 net1,net2,nmask;
1230 nmask = ntohl(mask.s_addr);
1231 net1 = ntohl(ip1.s_addr);
1232 net2 = ntohl(ip2.s_addr);
1234 return((net1 & nmask) == (net2 & nmask));
1238 /****************************************************************************
1239 Check if a process exists. Does this work on all unixes?
1240 ****************************************************************************/
1242 BOOL process_exists(pid_t pid)
1244 /* Doing kill with a non-positive pid causes messages to be
1245 * sent to places we don't want. */
1246 SMB_ASSERT(pid > 0);
1247 return(kill(pid,0) == 0 || errno != ESRCH);
1250 /*******************************************************************
1251 Convert a uid into a user name.
1252 ********************************************************************/
1254 const char *uidtoname(uid_t uid)
1256 static fstring name;
1257 struct passwd *pass;
1259 pass = getpwuid_alloc(uid);
1261 fstrcpy(name, pass->pw_name);
1264 slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
1270 /*******************************************************************
1271 Convert a gid into a group name.
1272 ********************************************************************/
1274 char *gidtoname(gid_t gid)
1276 static fstring name;
1279 grp = getgrgid(gid);
1281 return(grp->gr_name);
1282 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1286 /*******************************************************************
1287 Convert a user name into a uid.
1288 ********************************************************************/
1290 uid_t nametouid(const char *name)
1292 struct passwd *pass;
1296 pass = getpwnam_alloc(name);
1303 u = (uid_t)strtol(name, &p, 0);
1304 if ((p != name) && (*p == '\0'))
1310 /*******************************************************************
1311 Convert a name to a gid_t if possible. Return -1 if not a group.
1312 ********************************************************************/
1314 gid_t nametogid(const char *name)
1320 g = (gid_t)strtol(name, &p, 0);
1321 if ((p != name) && (*p == '\0'))
1324 grp = sys_getgrnam(name);
1326 return(grp->gr_gid);
1330 /*******************************************************************
1331 legacy wrapper for smb_panic2()
1332 ********************************************************************/
1333 void smb_panic( const char *why )
1335 smb_panic2( why, True );
1338 /*******************************************************************
1339 Something really nasty happened - panic !
1340 ********************************************************************/
1342 #ifdef HAVE_LIBEXC_H
1346 void smb_panic2(const char *why, BOOL decrement_pid_count )
1350 #ifdef HAVE_BACKTRACE_SYMBOLS
1351 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1352 size_t backtrace_size;
1353 char **backtrace_strings;
1358 extern char *global_clobber_region_function;
1359 extern unsigned int global_clobber_region_line;
1361 if (global_clobber_region_function) {
1362 DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
1363 global_clobber_region_function,
1364 global_clobber_region_line));
1369 /* only smbd needs to decrement the smbd counter in connections.tdb */
1370 if ( decrement_pid_count )
1371 decrement_smbd_process_count();
1373 cmd = lp_panic_action();
1375 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1376 result = system(cmd);
1379 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1382 DEBUG(0, ("smb_panic(): action returned status %d\n",
1383 WEXITSTATUS(result)));
1385 DEBUG(0,("PANIC: %s\n", why));
1387 #ifdef HAVE_BACKTRACE_SYMBOLS
1388 /* get the backtrace (stack frames) */
1389 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1390 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1392 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1393 (unsigned long)backtrace_size));
1395 if (backtrace_strings) {
1398 for (i = 0; i < backtrace_size; i++)
1399 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1401 /* Leak the backtrace_strings, rather than risk what free() might do */
1406 #define NAMESIZE 32 /* Arbitrary */
1408 /* The IRIX libexc library provides an API for unwinding the stack. See
1409 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1410 * since we are about to abort anyway, it hardly matters.
1412 * Note that if we paniced due to a SIGSEGV or SIGBUS (or similar) this
1413 * will fail with a nasty message upon failing to open the /proc entry.
1416 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1417 char * names[BACKTRACE_STACK_SIZE];
1418 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1425 ZERO_ARRAY(namebuf);
1427 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1428 names[i] = namebuf + (i * NAMESIZE);
1431 levels = trace_back_stack(0, addrs, names,
1432 BACKTRACE_STACK_SIZE, NAMESIZE);
1434 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1435 for (i = 0; i < levels; i++) {
1436 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1444 CatchSignal(SIGABRT,SIGNAL_CAST SIG_DFL);
1449 /*******************************************************************
1450 A readdir wrapper which just returns the file name.
1451 ********************************************************************/
1453 const char *readdirname(DIR *p)
1455 SMB_STRUCT_DIRENT *ptr;
1461 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1465 dname = ptr->d_name;
1472 #ifdef HAVE_BROKEN_READDIR
1473 /* using /usr/ucb/cc is BAD */
1479 int len = NAMLEN(ptr);
1480 memcpy(buf, dname, len);
1488 /*******************************************************************
1489 Utility function used to decide if the last component
1490 of a path matches a (possibly wildcarded) entry in a namelist.
1491 ********************************************************************/
1493 BOOL is_in_path(const char *name, name_compare_entry *namelist, BOOL case_sensitive)
1495 pstring last_component;
1498 DEBUG(8, ("is_in_path: %s\n", name));
1500 /* if we have no list it's obviously not in the path */
1501 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1502 DEBUG(8,("is_in_path: no name list.\n"));
1506 /* Get the last component of the unix name. */
1507 p = strrchr_m(name, '/');
1508 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1509 last_component[sizeof(last_component)-1] = '\0';
1511 for(; namelist->name != NULL; namelist++) {
1512 if(namelist->is_wild) {
1513 if (mask_match(last_component, namelist->name, case_sensitive)) {
1514 DEBUG(8,("is_in_path: mask match succeeded\n"));
1518 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1519 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1520 DEBUG(8,("is_in_path: match succeeded\n"));
1525 DEBUG(8,("is_in_path: match not found\n"));
1530 /*******************************************************************
1531 Strip a '/' separated list into an array of
1532 name_compare_enties structures suitable for
1533 passing to is_in_path(). We do this for
1534 speed so we can pre-parse all the names in the list
1535 and don't do it for each call to is_in_path().
1536 namelist is modified here and is assumed to be
1537 a copy owned by the caller.
1538 We also check if the entry contains a wildcard to
1539 remove a potentially expensive call to mask_match
1541 ********************************************************************/
1543 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1546 char *nameptr = namelist;
1547 int num_entries = 0;
1550 (*ppname_array) = NULL;
1552 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1555 /* We need to make two passes over the string. The
1556 first to count the number of elements, the second
1561 if ( *nameptr == '/' ) {
1562 /* cope with multiple (useless) /s) */
1566 /* find the next / */
1567 name_end = strchr_m(nameptr, '/');
1569 /* oops - the last check for a / didn't find one. */
1570 if (name_end == NULL)
1573 /* next segment please */
1574 nameptr = name_end + 1;
1578 if(num_entries == 0)
1581 if(( (*ppname_array) = (name_compare_entry *)malloc(
1582 (num_entries + 1) * sizeof(name_compare_entry))) == NULL) {
1583 DEBUG(0,("set_namearray: malloc fail\n"));
1587 /* Now copy out the names */
1591 if ( *nameptr == '/' ) {
1592 /* cope with multiple (useless) /s) */
1596 /* find the next / */
1597 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1600 /* oops - the last check for a / didn't find one. */
1601 if(name_end == NULL)
1604 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1605 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL) {
1606 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1610 /* next segment please */
1611 nameptr = name_end + 1;
1615 (*ppname_array)[i].name = NULL;
1620 /****************************************************************************
1621 Routine to free a namearray.
1622 ****************************************************************************/
1624 void free_namearray(name_compare_entry *name_array)
1628 if(name_array == NULL)
1631 for(i=0; name_array[i].name!=NULL; i++)
1632 SAFE_FREE(name_array[i].name);
1633 SAFE_FREE(name_array);
1636 /****************************************************************************
1637 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1638 is dealt with in posix.c
1639 ****************************************************************************/
1641 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1643 SMB_STRUCT_FLOCK lock;
1646 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1649 lock.l_whence = SEEK_SET;
1650 lock.l_start = offset;
1654 ret = sys_fcntl_ptr(fd,op,&lock);
1656 if (ret == -1 && errno != 0)
1657 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1660 if (op == SMB_F_GETLK) {
1662 (lock.l_type != F_UNLCK) &&
1663 (lock.l_pid != 0) &&
1664 (lock.l_pid != sys_getpid())) {
1665 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1669 /* it must be not locked or locked by me */
1673 /* a lock set or unset */
1675 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1676 (double)offset,(double)count,op,type,strerror(errno)));
1680 /* everything went OK */
1681 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1686 /*******************************************************************
1687 Is the name specified one of my netbios names.
1688 Returns true if it is equal, false otherwise.
1689 ********************************************************************/
1691 BOOL is_myname(const char *s)
1696 for (n=0; my_netbios_names(n); n++) {
1697 if (strequal(my_netbios_names(n), s)) {
1702 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1706 BOOL is_myname_or_ipaddr(const char *s)
1708 /* optimize for the common case */
1709 if (strequal(s, global_myname()))
1712 /* maybe its an IP address? */
1713 if (is_ipaddress(s)) {
1714 struct iface_struct nics[MAX_INTERFACES];
1718 ip = interpret_addr(s);
1719 if ((ip==0) || (ip==0xffffffff))
1722 n = get_interfaces(nics, MAX_INTERFACES);
1723 for (i=0; i<n; i++) {
1724 if (ip == nics[i].ip.s_addr)
1729 /* check for an alias */
1737 /*******************************************************************
1738 Is the name specified our workgroup/domain.
1739 Returns true if it is equal, false otherwise.
1740 ********************************************************************/
1742 BOOL is_myworkgroup(const char *s)
1746 if (strequal(s, lp_workgroup())) {
1750 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1754 /*******************************************************************
1755 we distinguish between 2K and XP by the "Native Lan Manager" string
1756 WinXP => "Windows 2002 5.1"
1757 Win2k => "Windows 2000 5.0"
1758 NT4 => "Windows NT 4.0"
1759 Win9x => "Windows 4.0"
1760 Windows 2003 doesn't set the native lan manager string but
1761 they do set the domain to "Windows 2003 5.2" (probably a bug).
1762 ********************************************************************/
1764 void ra_lanman_string( const char *native_lanman )
1766 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1767 set_remote_arch( RA_WINXP );
1768 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1769 set_remote_arch( RA_WIN2K3 );
1772 /*******************************************************************
1773 Set the horrid remote_arch string based on an enum.
1774 ********************************************************************/
1776 void set_remote_arch(enum remote_arch_types type)
1778 extern fstring remote_arch;
1782 fstrcpy(remote_arch, "WfWg");
1785 fstrcpy(remote_arch, "OS2");
1788 fstrcpy(remote_arch, "Win95");
1791 fstrcpy(remote_arch, "WinNT");
1794 fstrcpy(remote_arch, "Win2K");
1797 fstrcpy(remote_arch, "WinXP");
1800 fstrcpy(remote_arch, "Win2K3");
1803 fstrcpy(remote_arch,"Samba");
1806 fstrcpy(remote_arch,"CIFSFS");
1809 ra_type = RA_UNKNOWN;
1810 fstrcpy(remote_arch, "UNKNOWN");
1814 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", remote_arch));
1817 /*******************************************************************
1818 Get the remote_arch type.
1819 ********************************************************************/
1821 enum remote_arch_types get_remote_arch(void)
1826 void print_asc(int level, const unsigned char *buf,int len)
1830 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1833 void dump_data(int level, const char *buf1,int len)
1835 const unsigned char *buf = (const unsigned char *)buf1;
1839 if (!DEBUGLVL(level)) return;
1841 DEBUGADD(level,("[%03X] ",i));
1843 DEBUGADD(level,("%02X ",(int)buf[i]));
1845 if (i%8 == 0) DEBUGADD(level,(" "));
1847 print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
1848 print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
1849 if (i<len) DEBUGADD(level,("[%03X] ",i));
1855 DEBUGADD(level,(" "));
1856 if (n>8) DEBUGADD(level,(" "));
1857 while (n--) DEBUGADD(level,(" "));
1859 print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
1861 if (n>0) print_asc(level,&buf[i-n],n);
1862 DEBUGADD(level,("\n"));
1866 void dump_data_pw(const char *msg, const uchar * data, size_t len)
1868 #ifdef DEBUG_PASSWORD
1869 DEBUG(11, ("%s", msg));
1870 if (data != NULL && len > 0)
1872 dump_data(11, data, len);
1877 char *tab_depth(int depth)
1879 static pstring spaces;
1880 memset(spaces, ' ', depth * 4);
1881 spaces[depth * 4] = 0;
1885 /*****************************************************************************
1886 Provide a checksum on a string
1888 Input: s - the null-terminated character string for which the checksum
1891 Output: The checksum value calculated for s.
1892 *****************************************************************************/
1894 int str_checksum(const char *s)
1902 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1909 /*****************************************************************
1910 Zero a memory area then free it. Used to catch bugs faster.
1911 *****************************************************************/
1913 void zero_free(void *p, size_t size)
1919 /*****************************************************************
1920 Set our open file limit to a requested max and return the limit.
1921 *****************************************************************/
1923 int set_maxfiles(int requested_max)
1925 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1927 int saved_current_limit;
1929 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1930 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1933 return requested_max;
1937 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1938 * account for the extra fd we need
1939 * as well as the log files and standard
1940 * handles etc. Save the limit we want to set in case
1941 * we are running on an OS that doesn't support this limit (AIX)
1942 * which always returns RLIM_INFINITY for rlp.rlim_max.
1945 /* Try raising the hard (max) limit to the requested amount. */
1947 #if defined(RLIM_INFINITY)
1948 if (rlp.rlim_max != RLIM_INFINITY) {
1949 int orig_max = rlp.rlim_max;
1951 if ( rlp.rlim_max < requested_max )
1952 rlp.rlim_max = requested_max;
1954 /* This failing is not an error - many systems (Linux) don't
1955 support our default request of 10,000 open files. JRA. */
1957 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1958 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1959 (int)rlp.rlim_max, strerror(errno) ));
1961 /* Set failed - restore original value from get. */
1962 rlp.rlim_max = orig_max;
1967 /* Now try setting the soft (current) limit. */
1969 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1971 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1972 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1973 (int)rlp.rlim_cur, strerror(errno) ));
1975 return saved_current_limit;
1978 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1979 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1982 return saved_current_limit;
1985 #if defined(RLIM_INFINITY)
1986 if(rlp.rlim_cur == RLIM_INFINITY)
1987 return saved_current_limit;
1990 if((int)rlp.rlim_cur > saved_current_limit)
1991 return saved_current_limit;
1993 return rlp.rlim_cur;
1994 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1996 * No way to know - just guess...
1998 return requested_max;
2002 /*****************************************************************
2003 Splits out the start of the key (HKLM or HKU) and the rest of the key.
2004 *****************************************************************/
2006 BOOL reg_split_key(const char *full_keyname, uint32 *reg_type, char *key_name)
2010 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
2015 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
2017 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
2018 (*reg_type) = HKEY_LOCAL_MACHINE;
2019 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
2020 (*reg_type) = HKEY_USERS;
2022 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
2026 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
2027 fstrcpy(key_name, tmp);
2031 DEBUG(10, ("reg_split_key: name %s\n", key_name));
2036 /*****************************************************************
2037 Possibly replace mkstemp if it is broken.
2038 *****************************************************************/
2040 int smb_mkstemp(char *template)
2042 #if HAVE_SECURE_MKSTEMP
2043 return mkstemp(template);
2045 /* have a reasonable go at emulating it. Hope that
2046 the system mktemp() isn't completly hopeless */
2047 char *p = mktemp(template);
2050 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
2054 /*****************************************************************
2055 malloc that aborts with smb_panic on fail or zero size.
2056 *****************************************************************/
2058 void *smb_xmalloc(size_t size)
2062 smb_panic("smb_xmalloc: called with zero size.\n");
2063 if ((p = malloc(size)) == NULL) {
2064 DEBUG(0, ("smb_xmalloc() failed to allocate %lu bytes\n", (unsigned long)size));
2065 smb_panic("smb_xmalloc: malloc fail.\n");
2071 Memdup with smb_panic on fail.
2074 void *smb_xmemdup(const void *p, size_t size)
2077 p2 = smb_xmalloc(size);
2078 memcpy(p2, p, size);
2083 strdup that aborts on malloc fail.
2086 char *smb_xstrdup(const char *s)
2088 char *s1 = strdup(s);
2090 smb_panic("smb_xstrdup: malloc fail\n");
2095 strndup that aborts on malloc fail.
2098 char *smb_xstrndup(const char *s, size_t n)
2100 char *s1 = strndup(s, n);
2102 smb_panic("smb_xstrndup: malloc fail\n");
2107 vasprintf that aborts on malloc fail
2110 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2117 n = vasprintf(ptr, format, ap2);
2118 if (n == -1 || ! *ptr)
2119 smb_panic("smb_xvasprintf: out of memory");
2123 /*****************************************************************
2124 Like strdup but for memory.
2125 *****************************************************************/
2127 void *memdup(const void *p, size_t size)
2135 memcpy(p2, p, size);
2139 /*****************************************************************
2140 Get local hostname and cache result.
2141 *****************************************************************/
2143 char *myhostname(void)
2151 /*****************************************************************
2152 A useful function for returning a path in the Samba lock directory.
2153 *****************************************************************/
2155 char *lock_path(const char *name)
2157 static pstring fname;
2159 pstrcpy(fname,lp_lockdir());
2160 trim_char(fname,'\0','/');
2162 if (!directory_exist(fname,NULL))
2166 pstrcat(fname,name);
2171 /*****************************************************************
2172 A useful function for returning a path in the Samba pid directory.
2173 *****************************************************************/
2175 char *pid_path(const char *name)
2177 static pstring fname;
2179 pstrcpy(fname,lp_piddir());
2180 trim_char(fname,'\0','/');
2182 if (!directory_exist(fname,NULL))
2186 pstrcat(fname,name);
2192 * @brief Returns an absolute path to a file in the Samba lib directory.
2194 * @param name File to find, relative to LIBDIR.
2196 * @retval Pointer to a static #pstring containing the full path.
2199 char *lib_path(const char *name)
2201 static pstring fname;
2202 fstr_sprintf(fname, "%s/%s", dyn_LIBDIR, name);
2207 * @brief Returns the platform specific shared library extension.
2209 * @retval Pointer to a static #fstring containing the extension.
2212 const char *shlib_ext(void)
2214 return dyn_SHLIBEXT;
2217 /*******************************************************************
2218 Given a filename - get its directory name
2219 NB: Returned in static storage. Caveats:
2220 o Not safe in thread environment.
2221 o Caller must not free.
2222 o If caller wishes to preserve, they should copy.
2223 ********************************************************************/
2225 char *parent_dirname(const char *path)
2227 static pstring dirpath;
2233 pstrcpy(dirpath, path);
2234 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
2236 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
2239 ++p; /* For root "/", leave "/" in place */
2246 /*******************************************************************
2247 Determine if a pattern contains any Microsoft wildcard characters.
2248 *******************************************************************/
2250 BOOL ms_has_wild(const char *s)
2253 while ((c = *s++)) {
2266 BOOL ms_has_wild_w(const smb_ucs2_t *s)
2269 if (!s) return False;
2270 while ((c = *s++)) {
2272 case UCS2_CHAR('*'):
2273 case UCS2_CHAR('?'):
2274 case UCS2_CHAR('<'):
2275 case UCS2_CHAR('>'):
2276 case UCS2_CHAR('"'):
2283 /*******************************************************************
2284 A wrapper that handles case sensitivity and the special handling
2286 *******************************************************************/
2288 BOOL mask_match(const char *string, char *pattern, BOOL is_case_sensitive)
2290 if (strcmp(string,"..") == 0)
2292 if (strcmp(pattern,".") == 0)
2295 return ms_fnmatch(pattern, string, Protocol, is_case_sensitive) == 0;
2298 /*******************************************************************
2299 A wrapper that handles a list of patters and calls mask_match()
2300 on each. Returns True if any of the patterns match.
2301 *******************************************************************/
2303 BOOL mask_match_list(const char *string, char **list, int listLen, BOOL is_case_sensitive)
2305 while (listLen-- > 0) {
2306 if (mask_match(string, *list++, is_case_sensitive))
2312 /*********************************************************
2313 Recursive routine that is called by unix_wild_match.
2314 *********************************************************/
2316 static BOOL unix_do_match(const char *regexp, const char *str)
2320 for( p = regexp; *p && *str; ) {
2331 * Look for a character matching
2332 * the one after the '*'.
2336 return True; /* Automatic match */
2339 while(*str && (*p != *str))
2343 * Patch from weidel@multichart.de. In the case of the regexp
2344 * '*XX*' we want to ensure there are at least 2 'X' characters
2345 * in the string after the '*' for a match to be made.
2352 * Eat all the characters that match, but count how many there were.
2355 while(*str && (*p == *str)) {
2361 * Now check that if the regexp had n identical characters that
2362 * matchcount had at least that many matches.
2365 while ( *(p+1) && (*(p+1) == *p)) {
2370 if ( matchcount <= 0 )
2374 str--; /* We've eaten the match char after the '*' */
2376 if(unix_do_match(p, str))
2398 if (!*p && str[0] == '.' && str[1] == 0)
2401 if (!*str && *p == '?') {
2407 if(!*str && (*p == '*' && p[1] == '\0'))
2413 /*******************************************************************
2414 Simple case insensitive interface to a UNIX wildcard matcher.
2415 *******************************************************************/
2417 BOOL unix_wild_match(const char *pattern, const char *string)
2422 pstrcpy(p2, pattern);
2423 pstrcpy(s2, string);
2427 /* Remove any *? and ** from the pattern as they are meaningless */
2428 for(p = p2; *p; p++)
2429 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
2430 pstrcpy( &p[1], &p[2]);
2432 if (strequal(p2,"*"))
2435 return unix_do_match(p2, s2) == 0;
2438 /**********************************************************************
2439 Converts a name to a fully qalified domain name.
2440 ***********************************************************************/
2442 void name_to_fqdn(fstring fqdn, const char *name)
2444 struct hostent *hp = sys_gethostbyname(name);
2445 if ( hp && hp->h_name && *hp->h_name ) {
2446 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, hp->h_name));
2447 fstrcpy(fqdn,hp->h_name);
2449 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2450 fstrcpy(fqdn, name);
2456 /*******************************************************************
2457 This routine is a trick to immediately catch errors when debugging
2458 with insure. A xterm with a gdb is popped up when insure catches
2459 a error. It is Linux specific.
2460 ********************************************************************/
2462 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2467 /* you can get /usr/bin/backtrace from
2468 http://samba.org/ftp/unpacked/junkcode/backtrace */
2469 pstring cmd = "/usr/bin/backtrace %d";
2471 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2472 pstring_sub(cmd, "%d", pidstr);
2476 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2477 fn = dlsym(h, "_Insure_trap_error");
2479 if (!h || h == _Insure_trap_error) {
2480 h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
2481 fn = dlsym(h, "_Insure_trap_error");
2485 ret = fn(a1, a2, a3, a4, a5, a6);