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 /* Max allowable allococation - 256mb - 0x10000000 */
27 #define MAX_ALLOC_SIZE (1024*1024*256)
29 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
30 #ifdef WITH_NISPLUS_HOME
31 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
33 * The following lines are needed due to buggy include files
34 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
35 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
36 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
37 * an enum in /usr/include/rpcsvc/nis.h.
44 #if defined(GROUP_OBJ)
48 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
50 #include <rpcsvc/nis.h>
52 #endif /* WITH_NISPLUS_HOME */
53 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
55 enum protocol_types Protocol = PROTOCOL_COREPLUS;
57 /* a default finfo structure to ensure all fields are sensible */
58 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
60 /* this is used by the chaining code */
65 static enum remote_arch_types ra_type = RA_UNKNOWN;
66 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
68 /***********************************************************************
69 Definitions for all names.
70 ***********************************************************************/
72 static char *smb_myname;
73 static char *smb_myworkgroup;
74 static char *smb_scope;
75 static int smb_num_netbios_names;
76 static char **smb_my_netbios_names;
78 /***********************************************************************
79 Allocate and set myname. Ensure upper case.
80 ***********************************************************************/
82 BOOL set_global_myname(const char *myname)
84 SAFE_FREE(smb_myname);
85 smb_myname = SMB_STRDUP(myname);
88 strupper_m(smb_myname);
92 const char *global_myname(void)
97 /***********************************************************************
98 Allocate and set myworkgroup. Ensure upper case.
99 ***********************************************************************/
101 BOOL set_global_myworkgroup(const char *myworkgroup)
103 SAFE_FREE(smb_myworkgroup);
104 smb_myworkgroup = SMB_STRDUP(myworkgroup);
105 if (!smb_myworkgroup)
107 strupper_m(smb_myworkgroup);
111 const char *lp_workgroup(void)
113 return smb_myworkgroup;
116 /***********************************************************************
117 Allocate and set scope. Ensure upper case.
118 ***********************************************************************/
120 BOOL set_global_scope(const char *scope)
122 SAFE_FREE(smb_scope);
123 smb_scope = SMB_STRDUP(scope);
126 strupper_m(smb_scope);
130 /*********************************************************************
131 Ensure scope is never null string.
132 *********************************************************************/
134 const char *global_scope(void)
137 set_global_scope("");
141 static void free_netbios_names_array(void)
145 for (i = 0; i < smb_num_netbios_names; i++)
146 SAFE_FREE(smb_my_netbios_names[i]);
148 SAFE_FREE(smb_my_netbios_names);
149 smb_num_netbios_names = 0;
152 static BOOL allocate_my_netbios_names_array(size_t number)
154 free_netbios_names_array();
156 smb_num_netbios_names = number + 1;
157 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
159 if (!smb_my_netbios_names)
162 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
166 static BOOL set_my_netbios_names(const char *name, int i)
168 SAFE_FREE(smb_my_netbios_names[i]);
170 smb_my_netbios_names[i] = SMB_STRDUP(name);
171 if (!smb_my_netbios_names[i])
173 strupper_m(smb_my_netbios_names[i]);
177 const char *my_netbios_names(int i)
179 return smb_my_netbios_names[i];
182 BOOL set_netbios_aliases(const char **str_array)
186 /* Work out the max number of netbios aliases that we have */
187 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
190 if ( global_myname() && *global_myname())
193 /* Allocate space for the netbios aliases */
194 if (!allocate_my_netbios_names_array(namecount))
197 /* Use the global_myname string first */
199 if ( global_myname() && *global_myname()) {
200 set_my_netbios_names( global_myname(), namecount );
206 for ( i = 0; str_array[i] != NULL; i++) {
208 BOOL duplicate = False;
210 /* Look for duplicates */
211 for( n=0; n<namecount; n++ ) {
212 if( strequal( str_array[i], my_netbios_names(n) ) ) {
218 if (!set_my_netbios_names(str_array[i], namecount))
227 /****************************************************************************
228 Common name initialization code.
229 ****************************************************************************/
231 BOOL init_names(void)
233 extern fstring local_machine;
237 if (global_myname() == NULL || *global_myname() == '\0') {
238 if (!set_global_myname(myhostname())) {
239 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
244 if (!set_netbios_aliases(lp_netbios_aliases())) {
245 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
249 fstrcpy( local_machine, global_myname() );
250 trim_char( local_machine, ' ', ' ' );
251 p = strchr( local_machine, ' ' );
254 strlower_m( local_machine );
256 DEBUG( 5, ("Netbios name list:-\n") );
257 for( n=0; my_netbios_names(n); n++ )
258 DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names(n) ) );
263 /**************************************************************************n
264 Find a suitable temporary directory. The result should be copied immediately
265 as it may be overwritten by a subsequent call.
266 ****************************************************************************/
268 const char *tmpdir(void)
271 if ((p = getenv("TMPDIR")))
276 /****************************************************************************
277 Determine whether we are in the specified group.
278 ****************************************************************************/
280 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, const gid_t *groups)
284 if (group == current_gid)
287 for (i=0;i<ngroups;i++)
288 if (group == groups[i])
294 /****************************************************************************
295 Add a gid to an array of gids if it's not already there.
296 ****************************************************************************/
298 void add_gid_to_array_unique(gid_t gid, gid_t **gids, int *num)
302 for (i=0; i<*num; i++) {
303 if ((*gids)[i] == gid)
307 *gids = SMB_REALLOC_ARRAY(*gids, gid_t, *num+1);
316 /****************************************************************************
317 Like atoi but gets the value up to the separator character.
318 ****************************************************************************/
320 static const char *Atoic(const char *p, int *n, const char *c)
322 if (!isdigit((int)*p)) {
323 DEBUG(5, ("Atoic: malformed number\n"));
329 while ((*p) && isdigit((int)*p))
332 if (strchr_m(c, *p) == NULL) {
333 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
340 /*************************************************************************
341 Reads a list of numbers.
342 *************************************************************************/
344 const char *get_numlist(const char *p, uint32 **num, int *count)
348 if (num == NULL || count == NULL)
354 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':') {
357 tn = SMB_REALLOC_ARRAY((*num), uint32, (*count)+1);
363 (*num)[(*count)] = val;
371 /*******************************************************************
372 Check if a file exists - call vfs_file_exist for samba files.
373 ********************************************************************/
375 BOOL file_exist(const char *fname,SMB_STRUCT_STAT *sbuf)
381 if (sys_stat(fname,sbuf) != 0)
384 return((S_ISREG(sbuf->st_mode)) || (S_ISFIFO(sbuf->st_mode)));
387 /*******************************************************************
388 Check a files mod time.
389 ********************************************************************/
391 time_t file_modtime(const char *fname)
395 if (sys_stat(fname,&st) != 0)
401 /*******************************************************************
402 Check if a directory exists.
403 ********************************************************************/
405 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
413 if (sys_stat(dname,st) != 0)
416 ret = S_ISDIR(st->st_mode);
422 /*******************************************************************
423 Returns the size in bytes of the named file.
424 ********************************************************************/
426 SMB_OFF_T get_file_size(char *file_name)
430 if(sys_stat(file_name,&buf) != 0)
431 return (SMB_OFF_T)-1;
435 /*******************************************************************
436 Return a string representing an attribute for a file.
437 ********************************************************************/
439 char *attrib_string(uint16 mode)
441 static fstring attrstr;
445 if (mode & aVOLID) fstrcat(attrstr,"V");
446 if (mode & aDIR) fstrcat(attrstr,"D");
447 if (mode & aARCH) fstrcat(attrstr,"A");
448 if (mode & aHIDDEN) fstrcat(attrstr,"H");
449 if (mode & aSYSTEM) fstrcat(attrstr,"S");
450 if (mode & aRONLY) fstrcat(attrstr,"R");
455 /*******************************************************************
456 Show a smb message structure.
457 ********************************************************************/
459 void show_msg(char *buf)
467 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
469 (int)CVAL(buf,smb_com),
470 (int)CVAL(buf,smb_rcls),
471 (int)CVAL(buf,smb_reh),
472 (int)SVAL(buf,smb_err),
473 (int)CVAL(buf,smb_flg),
474 (int)SVAL(buf,smb_flg2)));
475 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
476 (int)SVAL(buf,smb_tid),
477 (int)SVAL(buf,smb_pid),
478 (int)SVAL(buf,smb_uid),
479 (int)SVAL(buf,smb_mid)));
480 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
482 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
483 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
484 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
486 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
488 DEBUGADD(5,("smb_bcc=%d\n",bcc));
496 dump_data(10, smb_buf(buf), bcc);
499 /*******************************************************************
500 Set the length and marker of an smb packet.
501 ********************************************************************/
503 void smb_setlen(char *buf,int len)
505 _smb_setlen(buf,len);
513 /*******************************************************************
514 Setup the word count and byte count for a smb message.
515 ********************************************************************/
517 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
520 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
521 SCVAL(buf,smb_wct,num_words);
522 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
523 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
524 return (smb_size + num_words*2 + num_bytes);
527 /*******************************************************************
528 Setup only the byte count for a smb message.
529 ********************************************************************/
531 int set_message_bcc(char *buf,int num_bytes)
533 int num_words = CVAL(buf,smb_wct);
534 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
535 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
536 return (smb_size + num_words*2 + num_bytes);
539 /*******************************************************************
540 Setup only the byte count for a smb message, using the end of the
542 ********************************************************************/
544 int set_message_end(void *outbuf,void *end_ptr)
546 return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
549 /*******************************************************************
550 Reduce a file name, removing .. elements.
551 ********************************************************************/
553 void dos_clean_name(char *s)
557 DEBUG(3,("dos_clean_name [%s]\n",s));
559 /* remove any double slashes */
560 all_string_sub(s, "\\\\", "\\", 0);
562 while ((p = strstr_m(s,"\\..\\")) != NULL) {
568 if ((p=strrchr_m(s,'\\')) != NULL)
575 trim_string(s,NULL,"\\..");
577 all_string_sub(s, "\\.\\", "\\", 0);
580 /*******************************************************************
581 Reduce a file name, removing .. elements.
582 ********************************************************************/
584 void unix_clean_name(char *s)
588 DEBUG(3,("unix_clean_name [%s]\n",s));
590 /* remove any double slashes */
591 all_string_sub(s, "//","/", 0);
593 /* Remove leading ./ characters */
594 if(strncmp(s, "./", 2) == 0) {
595 trim_string(s, "./", NULL);
600 while ((p = strstr_m(s,"/../")) != NULL) {
606 if ((p=strrchr_m(s,'/')) != NULL)
613 trim_string(s,NULL,"/..");
616 /****************************************************************************
618 ****************************************************************************/
620 void make_dir_struct(char *buf, const char *mask, const char *fname,SMB_OFF_T size,int mode,time_t date)
627 if ((mode & aDIR) != 0)
630 memset(buf+1,' ',11);
631 if ((p = strchr_m(mask2,'.')) != NULL) {
633 push_ascii(buf+1,mask2,8, 0);
634 push_ascii(buf+9,p+1,3, 0);
637 push_ascii(buf+1,mask2,11, 0);
639 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
641 put_dos_date(buf,22,date);
642 SSVAL(buf,26,size & 0xFFFF);
643 SSVAL(buf,28,(size >> 16)&0xFFFF);
644 push_ascii(buf+30,fname,12,0);
645 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
648 /*******************************************************************
649 Close the low 3 fd's and open dev/null in their place.
650 ********************************************************************/
652 void close_low_fds(BOOL stderr_too)
664 /* try and use up these file descriptors, so silly
665 library routines writing to stdout etc won't cause havoc */
667 if (i == 2 && !stderr_too)
670 fd = sys_open("/dev/null",O_RDWR,0);
672 fd = sys_open("/dev/null",O_WRONLY,0);
674 DEBUG(0,("Can't open /dev/null\n"));
678 DEBUG(0,("Didn't get file descriptor %d\n",i));
685 /****************************************************************************
686 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
690 ****************************************************************************/
692 int set_blocking(int fd, BOOL set)
696 #define FLAG_TO_SET O_NONBLOCK
699 #define FLAG_TO_SET O_NDELAY
701 #define FLAG_TO_SET FNDELAY
705 if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
707 if(set) /* Turn blocking on - ie. clear nonblock flag */
711 return sys_fcntl_long( fd, F_SETFL, val);
715 /****************************************************************************
716 Transfer some data between two fd's.
717 ****************************************************************************/
719 #ifndef TRANSFER_BUF_SIZE
720 #define TRANSFER_BUF_SIZE 65536
723 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
724 ssize_t (*write_fn)(int, const void *, size_t))
730 size_t num_to_read_thistime;
731 size_t num_written = 0;
733 if ((buf = SMB_MALLOC(TRANSFER_BUF_SIZE)) == NULL)
737 num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
739 read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
740 if (read_ret == -1) {
741 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
750 while (num_written < read_ret) {
751 write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
753 if (write_ret == -1) {
754 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
759 return (ssize_t)total;
761 num_written += (size_t)write_ret;
764 total += (size_t)read_ret;
768 return (ssize_t)total;
771 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
773 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
776 /*******************************************************************
777 Sleep for a specified number of milliseconds.
778 ********************************************************************/
780 void smb_msleep(unsigned int t)
782 #if defined(HAVE_NANOSLEEP)
783 struct timespec tval;
786 tval.tv_sec = t/1000;
787 tval.tv_nsec = 1000000*(t%1000);
791 ret = nanosleep(&tval, &tval);
792 } while (ret < 0 && errno == EINTR && (tval.tv_sec > 0 || tval.tv_nsec > 0));
794 unsigned int tdiff=0;
795 struct timeval tval,t1,t2;
802 tval.tv_sec = (t-tdiff)/1000;
803 tval.tv_usec = 1000*((t-tdiff)%1000);
805 /* Never wait for more than 1 sec. */
806 if (tval.tv_sec > 1) {
813 sys_select_intr(0,&fds,NULL,NULL,&tval);
816 if (t2.tv_sec < t1.tv_sec) {
817 /* Someone adjusted time... */
821 tdiff = TvalDiff(&t1,&t2);
826 /****************************************************************************
827 Become a daemon, discarding the controlling terminal.
828 ****************************************************************************/
830 void become_daemon(BOOL Fork)
838 /* detach from the terminal */
841 #elif defined(TIOCNOTTY)
843 int i = sys_open("/dev/tty", O_RDWR, 0);
845 ioctl(i, (int) TIOCNOTTY, (char *)0);
849 #endif /* HAVE_SETSID */
851 /* Close fd's 0,1,2. Needed if started by rsh */
852 close_low_fds(False); /* Don't close stderr, let the debug system
853 attach it to the logfile */
856 /****************************************************************************
857 Put up a yes/no prompt.
858 ****************************************************************************/
865 if (!fgets(ans,sizeof(ans)-1,stdin))
868 if (*ans == 'y' || *ans == 'Y')
874 #if defined(PARANOID_MALLOC_CHECKER)
876 /****************************************************************************
877 Internal malloc wrapper. Externally visible.
878 ****************************************************************************/
880 void *malloc_(size_t size)
884 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
887 /****************************************************************************
888 Internal calloc wrapper. Not externally visible.
889 ****************************************************************************/
891 static void *calloc_(size_t count, size_t size)
894 return calloc(count, size);
895 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
898 /****************************************************************************
899 Internal realloc wrapper. Not externally visible.
900 ****************************************************************************/
902 static void *realloc_(void *ptr, size_t size)
905 return realloc(ptr, size);
906 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
909 #endif /* PARANOID_MALLOC_CHECKER */
911 /****************************************************************************
913 ****************************************************************************/
915 void *malloc_array(size_t el_size, unsigned int count)
917 if (count >= MAX_ALLOC_SIZE/el_size) {
921 #if defined(PARANOID_MALLOC_CHECKER)
922 return malloc_(el_size*count);
924 return malloc(el_size*count);
928 /****************************************************************************
930 ****************************************************************************/
932 void *calloc_array(size_t size, size_t nmemb)
934 if (nmemb >= MAX_ALLOC_SIZE/size) {
937 #if defined(PARANOID_MALLOC_CHECKER)
938 return calloc_(nmemb, size);
940 return calloc(nmemb, size);
944 /****************************************************************************
945 Expand a pointer to be a particular size.
946 ****************************************************************************/
948 void *Realloc(void *p,size_t size)
954 DEBUG(5,("Realloc asked for 0 bytes\n"));
958 #if defined(PARANOID_MALLOC_CHECKER)
960 ret = (void *)malloc_(size);
962 ret = (void *)realloc_(p,size);
965 ret = (void *)malloc(size);
967 ret = (void *)realloc(p,size);
971 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
976 /****************************************************************************
978 ****************************************************************************/
980 void *realloc_array(void *p,size_t el_size, unsigned int count)
982 if (count >= MAX_ALLOC_SIZE/el_size) {
985 return Realloc(p,el_size*count);
988 /****************************************************************************
989 Free memory, checks for NULL.
990 Use directly SAFE_FREE()
991 Exists only because we need to pass a function pointer somewhere --SSS
992 ****************************************************************************/
994 void safe_free(void *p)
999 /****************************************************************************
1000 Get my own name and IP.
1001 ****************************************************************************/
1003 BOOL get_myname(char *my_name)
1009 /* get my host name */
1010 if (gethostname(hostname, sizeof(hostname)) == -1) {
1011 DEBUG(0,("gethostname failed\n"));
1015 /* Ensure null termination. */
1016 hostname[sizeof(hostname)-1] = '\0';
1019 /* split off any parts after an initial . */
1020 char *p = strchr_m(hostname,'.');
1025 fstrcpy(my_name,hostname);
1031 /****************************************************************************
1032 Get my own canonical name, including domain.
1033 ****************************************************************************/
1035 BOOL get_mydnsfullname(fstring my_dnsname)
1037 static fstring dnshostname;
1040 if (!*dnshostname) {
1041 /* get my host name */
1042 if (gethostname(dnshostname, sizeof(dnshostname)) == -1) {
1043 *dnshostname = '\0';
1044 DEBUG(0,("gethostname failed\n"));
1048 /* Ensure null termination. */
1049 dnshostname[sizeof(dnshostname)-1] = '\0';
1051 /* Ensure we get the cannonical name. */
1052 if (!(hp = sys_gethostbyname(dnshostname))) {
1053 *dnshostname = '\0';
1056 fstrcpy(dnshostname, hp->h_name);
1058 fstrcpy(my_dnsname, dnshostname);
1062 /****************************************************************************
1063 Get my own domain name.
1064 ****************************************************************************/
1066 BOOL get_mydnsdomname(fstring my_domname)
1072 if (!get_mydnsfullname(domname)) {
1075 p = strchr_m(domname, '.');
1078 fstrcpy(my_domname, p);
1084 /****************************************************************************
1085 Interpret a protocol description string, with a default.
1086 ****************************************************************************/
1088 int interpret_protocol(const char *str,int def)
1090 if (strequal(str,"NT1"))
1091 return(PROTOCOL_NT1);
1092 if (strequal(str,"LANMAN2"))
1093 return(PROTOCOL_LANMAN2);
1094 if (strequal(str,"LANMAN1"))
1095 return(PROTOCOL_LANMAN1);
1096 if (strequal(str,"CORE"))
1097 return(PROTOCOL_CORE);
1098 if (strequal(str,"COREPLUS"))
1099 return(PROTOCOL_COREPLUS);
1100 if (strequal(str,"CORE+"))
1101 return(PROTOCOL_COREPLUS);
1103 DEBUG(0,("Unrecognised protocol level %s\n",str));
1108 /****************************************************************************
1109 Return true if a string could be a pure IP address.
1110 ****************************************************************************/
1112 BOOL is_ipaddress(const char *str)
1114 BOOL pure_address = True;
1117 for (i=0; pure_address && str[i]; i++)
1118 if (!(isdigit((int)str[i]) || str[i] == '.'))
1119 pure_address = False;
1121 /* Check that a pure number is not misinterpreted as an IP */
1122 pure_address = pure_address && (strchr_m(str, '.') != NULL);
1124 return pure_address;
1127 /****************************************************************************
1128 Interpret an internet address or name into an IP address in 4 byte form.
1129 ****************************************************************************/
1131 uint32 interpret_addr(const char *str)
1136 if (strcmp(str,"0.0.0.0") == 0)
1138 if (strcmp(str,"255.255.255.255") == 0)
1141 /* if it's in the form of an IP address then get the lib to interpret it */
1142 if (is_ipaddress(str)) {
1143 res = inet_addr(str);
1145 /* otherwise assume it's a network name of some sort and use
1146 sys_gethostbyname */
1147 if ((hp = sys_gethostbyname(str)) == 0) {
1148 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
1152 if(hp->h_addr == NULL) {
1153 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
1156 putip((char *)&res,(char *)hp->h_addr);
1159 if (res == (uint32)-1)
1165 /*******************************************************************
1166 A convenient addition to interpret_addr().
1167 ******************************************************************/
1169 struct in_addr *interpret_addr2(const char *str)
1171 static struct in_addr ret;
1172 uint32 a = interpret_addr(str);
1177 /*******************************************************************
1178 Check if an IP is the 0.0.0.0.
1179 ******************************************************************/
1181 BOOL is_zero_ip(struct in_addr ip)
1184 putip((char *)&a,(char *)&ip);
1188 /*******************************************************************
1189 Set an IP to 0.0.0.0.
1190 ******************************************************************/
1192 void zero_ip(struct in_addr *ip)
1195 static struct in_addr ipzero;
1198 ipzero = *interpret_addr2("0.0.0.0");
1205 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1206 /******************************************************************
1207 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1208 Based on a fix from <Thomas.Hepper@icem.de>.
1209 *******************************************************************/
1211 static void strip_mount_options( pstring *str)
1215 while(*p && !isspace(*p))
1217 while(*p && isspace(*p))
1222 pstrcpy(tmp_str, p);
1223 pstrcpy(*str, tmp_str);
1228 /*******************************************************************
1229 Patch from jkf@soton.ac.uk
1230 Split Luke's automount_server into YP lookup and string splitter
1231 so can easily implement automount_path().
1232 As we may end up doing both, cache the last YP result.
1233 *******************************************************************/
1235 #ifdef WITH_NISPLUS_HOME
1236 char *automount_lookup( char *user_name)
1238 static fstring last_key = "";
1239 static pstring last_value = "";
1241 char *nis_map = (char *)lp_nis_home_map_name();
1243 char buffer[NIS_MAXATTRVAL + 1];
1248 if (strcmp(user_name, last_key)) {
1249 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
1250 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1252 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1253 if (result->status != NIS_SUCCESS) {
1254 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1255 fstrcpy(last_key, ""); pstrcpy(last_value, "");
1257 object = result->objects.objects_val;
1258 if (object->zo_data.zo_type == ENTRY_OBJ) {
1259 entry = &object->zo_data.objdata_u.en_data;
1260 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1261 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1263 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1264 pstring_sub(last_value, "&", user_name);
1265 fstrcpy(last_key, user_name);
1269 nis_freeresult(result);
1272 strip_mount_options(&last_value);
1274 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
1277 #else /* WITH_NISPLUS_HOME */
1279 char *automount_lookup( char *user_name)
1281 static fstring last_key = "";
1282 static pstring last_value = "";
1284 int nis_error; /* returned by yp all functions */
1285 char *nis_result; /* yp_match inits this */
1286 int nis_result_len; /* and set this */
1287 char *nis_domain; /* yp_get_default_domain inits this */
1288 char *nis_map = (char *)lp_nis_home_map_name();
1290 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1291 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1295 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1297 if (!strcmp(user_name, last_key)) {
1298 nis_result = last_value;
1299 nis_result_len = strlen(last_value);
1302 if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
1303 &nis_result, &nis_result_len)) == 0) {
1304 if (!nis_error && nis_result_len >= sizeof(pstring)) {
1305 nis_result_len = sizeof(pstring)-1;
1307 fstrcpy(last_key, user_name);
1308 strncpy(last_value, nis_result, nis_result_len);
1309 last_value[nis_result_len] = '\0';
1310 strip_mount_options(&last_value);
1312 } else if(nis_error == YPERR_KEY) {
1314 /* If Key lookup fails user home server is not in nis_map
1315 use default information for server, and home directory */
1317 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1318 user_name, nis_map));
1319 DEBUG(3, ("using defaults for server and home directory\n"));
1321 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1322 yperr_string(nis_error), user_name, nis_map));
1326 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
1329 #endif /* WITH_NISPLUS_HOME */
1332 /*******************************************************************
1333 Are two IPs on the same subnet?
1334 ********************************************************************/
1336 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
1338 uint32 net1,net2,nmask;
1340 nmask = ntohl(mask.s_addr);
1341 net1 = ntohl(ip1.s_addr);
1342 net2 = ntohl(ip2.s_addr);
1344 return((net1 & nmask) == (net2 & nmask));
1348 /****************************************************************************
1349 Check if a process exists. Does this work on all unixes?
1350 ****************************************************************************/
1352 BOOL process_exists(pid_t pid)
1354 /* Doing kill with a non-positive pid causes messages to be
1355 * sent to places we don't want. */
1356 SMB_ASSERT(pid > 0);
1357 return(kill(pid,0) == 0 || errno != ESRCH);
1360 /*******************************************************************
1361 Convert a uid into a user name.
1362 ********************************************************************/
1364 const char *uidtoname(uid_t uid)
1366 static fstring name;
1367 struct passwd *pass;
1369 pass = getpwuid_alloc(uid);
1371 fstrcpy(name, pass->pw_name);
1374 slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
1380 /*******************************************************************
1381 Convert a gid into a group name.
1382 ********************************************************************/
1384 char *gidtoname(gid_t gid)
1386 static fstring name;
1389 grp = getgrgid(gid);
1391 return(grp->gr_name);
1392 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1396 /*******************************************************************
1397 Convert a user name into a uid.
1398 ********************************************************************/
1400 uid_t nametouid(const char *name)
1402 struct passwd *pass;
1406 pass = getpwnam_alloc(name);
1413 u = (uid_t)strtol(name, &p, 0);
1414 if ((p != name) && (*p == '\0'))
1420 /*******************************************************************
1421 Convert a name to a gid_t if possible. Return -1 if not a group.
1422 ********************************************************************/
1424 gid_t nametogid(const char *name)
1430 g = (gid_t)strtol(name, &p, 0);
1431 if ((p != name) && (*p == '\0'))
1434 grp = sys_getgrnam(name);
1436 return(grp->gr_gid);
1440 /*******************************************************************
1441 legacy wrapper for smb_panic2()
1442 ********************************************************************/
1443 void smb_panic( const char *why )
1445 smb_panic2( why, True );
1448 /*******************************************************************
1449 Something really nasty happened - panic !
1450 ********************************************************************/
1452 #ifdef HAVE_LIBEXC_H
1456 void smb_panic2(const char *why, BOOL decrement_pid_count )
1460 #ifdef HAVE_BACKTRACE_SYMBOLS
1461 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1462 size_t backtrace_size;
1463 char **backtrace_strings;
1468 extern char *global_clobber_region_function;
1469 extern unsigned int global_clobber_region_line;
1471 if (global_clobber_region_function) {
1472 DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
1473 global_clobber_region_function,
1474 global_clobber_region_line));
1479 /* only smbd needs to decrement the smbd counter in connections.tdb */
1480 if ( decrement_pid_count )
1481 decrement_smbd_process_count();
1483 cmd = lp_panic_action();
1485 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1486 result = system(cmd);
1489 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1492 DEBUG(0, ("smb_panic(): action returned status %d\n",
1493 WEXITSTATUS(result)));
1495 DEBUG(0,("PANIC: %s\n", why));
1497 #ifdef HAVE_BACKTRACE_SYMBOLS
1498 /* get the backtrace (stack frames) */
1499 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1500 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1502 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1503 (unsigned long)backtrace_size));
1505 if (backtrace_strings) {
1508 for (i = 0; i < backtrace_size; i++)
1509 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1511 /* Leak the backtrace_strings, rather than risk what free() might do */
1516 #define NAMESIZE 32 /* Arbitrary */
1518 /* The IRIX libexc library provides an API for unwinding the stack. See
1519 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1520 * since we are about to abort anyway, it hardly matters.
1522 * Note that if we paniced due to a SIGSEGV or SIGBUS (or similar) this
1523 * will fail with a nasty message upon failing to open the /proc entry.
1526 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1527 char * names[BACKTRACE_STACK_SIZE];
1528 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1535 ZERO_ARRAY(namebuf);
1537 /* We need to be root so we can open our /proc entry to walk
1538 * our stack. It also helps when we want to dump core.
1542 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1543 names[i] = namebuf + (i * NAMESIZE);
1546 levels = trace_back_stack(0, addrs, names,
1547 BACKTRACE_STACK_SIZE, NAMESIZE);
1549 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1550 for (i = 0; i < levels; i++) {
1551 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1559 CatchSignal(SIGABRT,SIGNAL_CAST SIG_DFL);
1564 /*******************************************************************
1565 A readdir wrapper which just returns the file name.
1566 ********************************************************************/
1568 const char *readdirname(DIR *p)
1570 SMB_STRUCT_DIRENT *ptr;
1576 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1580 dname = ptr->d_name;
1587 #ifdef HAVE_BROKEN_READDIR
1588 /* using /usr/ucb/cc is BAD */
1594 int len = NAMLEN(ptr);
1595 memcpy(buf, dname, len);
1603 /*******************************************************************
1604 Utility function used to decide if the last component
1605 of a path matches a (possibly wildcarded) entry in a namelist.
1606 ********************************************************************/
1608 BOOL is_in_path(const char *name, name_compare_entry *namelist, BOOL case_sensitive)
1610 pstring last_component;
1613 /* if we have no list it's obviously not in the path */
1614 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1618 DEBUG(8, ("is_in_path: %s\n", name));
1620 /* Get the last component of the unix name. */
1621 p = strrchr_m(name, '/');
1622 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1623 last_component[sizeof(last_component)-1] = '\0';
1625 for(; namelist->name != NULL; namelist++) {
1626 if(namelist->is_wild) {
1627 if (mask_match(last_component, namelist->name, case_sensitive)) {
1628 DEBUG(8,("is_in_path: mask match succeeded\n"));
1632 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1633 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1634 DEBUG(8,("is_in_path: match succeeded\n"));
1639 DEBUG(8,("is_in_path: match not found\n"));
1644 /*******************************************************************
1645 Strip a '/' separated list into an array of
1646 name_compare_enties structures suitable for
1647 passing to is_in_path(). We do this for
1648 speed so we can pre-parse all the names in the list
1649 and don't do it for each call to is_in_path().
1650 namelist is modified here and is assumed to be
1651 a copy owned by the caller.
1652 We also check if the entry contains a wildcard to
1653 remove a potentially expensive call to mask_match
1655 ********************************************************************/
1657 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1660 char *nameptr = namelist;
1661 int num_entries = 0;
1664 (*ppname_array) = NULL;
1666 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1669 /* We need to make two passes over the string. The
1670 first to count the number of elements, the second
1675 if ( *nameptr == '/' ) {
1676 /* cope with multiple (useless) /s) */
1680 /* find the next / */
1681 name_end = strchr_m(nameptr, '/');
1683 /* oops - the last check for a / didn't find one. */
1684 if (name_end == NULL)
1687 /* next segment please */
1688 nameptr = name_end + 1;
1692 if(num_entries == 0)
1695 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1696 DEBUG(0,("set_namearray: malloc fail\n"));
1700 /* Now copy out the names */
1704 if ( *nameptr == '/' ) {
1705 /* cope with multiple (useless) /s) */
1709 /* find the next / */
1710 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1713 /* oops - the last check for a / didn't find one. */
1714 if(name_end == NULL)
1717 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1718 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1719 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1723 /* next segment please */
1724 nameptr = name_end + 1;
1728 (*ppname_array)[i].name = NULL;
1733 /****************************************************************************
1734 Routine to free a namearray.
1735 ****************************************************************************/
1737 void free_namearray(name_compare_entry *name_array)
1741 if(name_array == NULL)
1744 for(i=0; name_array[i].name!=NULL; i++)
1745 SAFE_FREE(name_array[i].name);
1746 SAFE_FREE(name_array);
1749 /****************************************************************************
1750 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1751 is dealt with in posix.c
1752 ****************************************************************************/
1754 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1756 SMB_STRUCT_FLOCK lock;
1759 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1762 lock.l_whence = SEEK_SET;
1763 lock.l_start = offset;
1767 ret = sys_fcntl_ptr(fd,op,&lock);
1769 if (ret == -1 && errno != 0)
1770 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1773 if (op == SMB_F_GETLK) {
1775 (lock.l_type != F_UNLCK) &&
1776 (lock.l_pid != 0) &&
1777 (lock.l_pid != sys_getpid())) {
1778 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1782 /* it must be not locked or locked by me */
1786 /* a lock set or unset */
1788 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1789 (double)offset,(double)count,op,type,strerror(errno)));
1793 /* everything went OK */
1794 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1799 /*******************************************************************
1800 Is the name specified one of my netbios names.
1801 Returns true if it is equal, false otherwise.
1802 ********************************************************************/
1804 BOOL is_myname(const char *s)
1809 for (n=0; my_netbios_names(n); n++) {
1810 if (strequal(my_netbios_names(n), s)) {
1815 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1819 BOOL is_myname_or_ipaddr(const char *s)
1821 fstring name, dnsname;
1827 /* santize the string from '\\name' */
1831 servername = strrchr_m( name, '\\' );
1837 /* optimize for the common case */
1839 if (strequal(servername, global_myname()))
1842 /* check for an alias */
1844 if (is_myname(servername))
1847 /* check for loopback */
1849 if (strequal(servername, "localhost"))
1852 /* maybe it's my dns name */
1854 if ( get_mydnsfullname( dnsname ) )
1855 if ( strequal( servername, dnsname ) )
1858 /* handle possible CNAME records */
1860 if ( !is_ipaddress( servername ) ) {
1861 /* use DNS to resolve the name, but only the first address */
1864 if (((hp = sys_gethostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
1865 struct in_addr return_ip;
1866 putip( (char*)&return_ip, (char*)hp->h_addr );
1867 fstrcpy( name, inet_ntoa( return_ip ) );
1872 /* maybe its an IP address? */
1873 if (is_ipaddress(servername)) {
1874 struct iface_struct nics[MAX_INTERFACES];
1878 ip = interpret_addr(servername);
1879 if ((ip==0) || (ip==0xffffffff))
1882 n = get_interfaces(nics, MAX_INTERFACES);
1883 for (i=0; i<n; i++) {
1884 if (ip == nics[i].ip.s_addr)
1893 /*******************************************************************
1894 Is the name specified our workgroup/domain.
1895 Returns true if it is equal, false otherwise.
1896 ********************************************************************/
1898 BOOL is_myworkgroup(const char *s)
1902 if (strequal(s, lp_workgroup())) {
1906 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1910 /*******************************************************************
1911 we distinguish between 2K and XP by the "Native Lan Manager" string
1912 WinXP => "Windows 2002 5.1"
1913 Win2k => "Windows 2000 5.0"
1914 NT4 => "Windows NT 4.0"
1915 Win9x => "Windows 4.0"
1916 Windows 2003 doesn't set the native lan manager string but
1917 they do set the domain to "Windows 2003 5.2" (probably a bug).
1918 ********************************************************************/
1920 void ra_lanman_string( const char *native_lanman )
1922 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1923 set_remote_arch( RA_WINXP );
1924 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1925 set_remote_arch( RA_WIN2K3 );
1928 /*******************************************************************
1929 Set the horrid remote_arch string based on an enum.
1930 ********************************************************************/
1932 void set_remote_arch(enum remote_arch_types type)
1934 extern fstring remote_arch;
1938 fstrcpy(remote_arch, "WfWg");
1941 fstrcpy(remote_arch, "OS2");
1944 fstrcpy(remote_arch, "Win95");
1947 fstrcpy(remote_arch, "WinNT");
1950 fstrcpy(remote_arch, "Win2K");
1953 fstrcpy(remote_arch, "WinXP");
1956 fstrcpy(remote_arch, "Win2K3");
1959 fstrcpy(remote_arch,"Samba");
1962 fstrcpy(remote_arch,"CIFSFS");
1965 ra_type = RA_UNKNOWN;
1966 fstrcpy(remote_arch, "UNKNOWN");
1970 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", remote_arch));
1973 /*******************************************************************
1974 Get the remote_arch type.
1975 ********************************************************************/
1977 enum remote_arch_types get_remote_arch(void)
1982 void print_asc(int level, const unsigned char *buf,int len)
1986 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1989 void dump_data(int level, const char *buf1,int len)
1991 const unsigned char *buf = (const unsigned char *)buf1;
1995 if (!DEBUGLVL(level)) return;
1997 DEBUGADD(level,("[%03X] ",i));
1999 DEBUGADD(level,("%02X ",(int)buf[i]));
2001 if (i%8 == 0) DEBUGADD(level,(" "));
2003 print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
2004 print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
2005 if (i<len) DEBUGADD(level,("[%03X] ",i));
2011 DEBUGADD(level,(" "));
2012 if (n>8) DEBUGADD(level,(" "));
2013 while (n--) DEBUGADD(level,(" "));
2015 print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
2017 if (n>0) print_asc(level,&buf[i-n],n);
2018 DEBUGADD(level,("\n"));
2022 void dump_data_pw(const char *msg, const uchar * data, size_t len)
2024 #ifdef DEBUG_PASSWORD
2025 DEBUG(11, ("%s", msg));
2026 if (data != NULL && len > 0)
2028 dump_data(11, data, len);
2033 char *tab_depth(int depth)
2035 static pstring spaces;
2036 memset(spaces, ' ', depth * 4);
2037 spaces[depth * 4] = 0;
2041 /*****************************************************************************
2042 Provide a checksum on a string
2044 Input: s - the null-terminated character string for which the checksum
2047 Output: The checksum value calculated for s.
2048 *****************************************************************************/
2050 int str_checksum(const char *s)
2058 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
2065 /*****************************************************************
2066 Zero a memory area then free it. Used to catch bugs faster.
2067 *****************************************************************/
2069 void zero_free(void *p, size_t size)
2075 /*****************************************************************
2076 Set our open file limit to a requested max and return the limit.
2077 *****************************************************************/
2079 int set_maxfiles(int requested_max)
2081 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
2083 int saved_current_limit;
2085 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
2086 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
2089 return requested_max;
2093 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
2094 * account for the extra fd we need
2095 * as well as the log files and standard
2096 * handles etc. Save the limit we want to set in case
2097 * we are running on an OS that doesn't support this limit (AIX)
2098 * which always returns RLIM_INFINITY for rlp.rlim_max.
2101 /* Try raising the hard (max) limit to the requested amount. */
2103 #if defined(RLIM_INFINITY)
2104 if (rlp.rlim_max != RLIM_INFINITY) {
2105 int orig_max = rlp.rlim_max;
2107 if ( rlp.rlim_max < requested_max )
2108 rlp.rlim_max = requested_max;
2110 /* This failing is not an error - many systems (Linux) don't
2111 support our default request of 10,000 open files. JRA. */
2113 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
2114 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
2115 (int)rlp.rlim_max, strerror(errno) ));
2117 /* Set failed - restore original value from get. */
2118 rlp.rlim_max = orig_max;
2123 /* Now try setting the soft (current) limit. */
2125 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
2127 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
2128 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
2129 (int)rlp.rlim_cur, strerror(errno) ));
2131 return saved_current_limit;
2134 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
2135 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
2138 return saved_current_limit;
2141 #if defined(RLIM_INFINITY)
2142 if(rlp.rlim_cur == RLIM_INFINITY)
2143 return saved_current_limit;
2146 if((int)rlp.rlim_cur > saved_current_limit)
2147 return saved_current_limit;
2149 return rlp.rlim_cur;
2150 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
2152 * No way to know - just guess...
2154 return requested_max;
2158 /*****************************************************************
2159 Splits out the start of the key (HKLM or HKU) and the rest of the key.
2160 *****************************************************************/
2162 BOOL reg_split_key(const char *full_keyname, uint32 *reg_type, char *key_name)
2166 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
2171 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
2173 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
2174 (*reg_type) = HKEY_LOCAL_MACHINE;
2175 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
2176 (*reg_type) = HKEY_USERS;
2178 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
2182 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
2183 fstrcpy(key_name, tmp);
2187 DEBUG(10, ("reg_split_key: name %s\n", key_name));
2192 /*****************************************************************
2193 Possibly replace mkstemp if it is broken.
2194 *****************************************************************/
2196 int smb_mkstemp(char *template)
2198 #if HAVE_SECURE_MKSTEMP
2199 return mkstemp(template);
2201 /* have a reasonable go at emulating it. Hope that
2202 the system mktemp() isn't completly hopeless */
2203 char *p = mktemp(template);
2206 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
2210 /*****************************************************************
2211 malloc that aborts with smb_panic on fail or zero size.
2212 *****************************************************************/
2214 void *smb_xmalloc_array(size_t size, unsigned int count)
2218 smb_panic("smb_xmalloc_array: called with zero size.\n");
2219 if (count >= MAX_ALLOC_SIZE/size) {
2220 smb_panic("smb_xmalloc: alloc size too large.\n");
2222 if ((p = SMB_MALLOC(size*count)) == NULL) {
2223 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2224 (unsigned long)size, (unsigned long)count));
2225 smb_panic("smb_xmalloc_array: malloc fail.\n");
2231 Memdup with smb_panic on fail.
2234 void *smb_xmemdup(const void *p, size_t size)
2237 p2 = SMB_XMALLOC_ARRAY(unsigned char,size);
2238 memcpy(p2, p, size);
2243 strdup that aborts on malloc fail.
2246 char *smb_xstrdup(const char *s)
2248 #if defined(PARANOID_MALLOC_CHECKER)
2253 char *s1 = strdup(s);
2254 #if defined(PARANOID_MALLOC_CHECKER)
2255 #define strdup(s) __ERROR_DONT_USE_STRDUP_DIRECTLY
2258 smb_panic("smb_xstrdup: malloc fail\n");
2264 strndup that aborts on malloc fail.
2267 char *smb_xstrndup(const char *s, size_t n)
2269 #if defined(PARANOID_MALLOC_CHECKER)
2274 char *s1 = strndup(s, n);
2275 #if defined(PARANOID_MALLOC_CHECKER)
2276 #define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
2279 smb_panic("smb_xstrndup: malloc fail\n");
2284 vasprintf that aborts on malloc fail
2287 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2294 n = vasprintf(ptr, format, ap2);
2295 if (n == -1 || ! *ptr)
2296 smb_panic("smb_xvasprintf: out of memory");
2300 /*****************************************************************
2301 Like strdup but for memory.
2302 *****************************************************************/
2304 void *memdup(const void *p, size_t size)
2309 p2 = SMB_MALLOC(size);
2312 memcpy(p2, p, size);
2316 /*****************************************************************
2317 Get local hostname and cache result.
2318 *****************************************************************/
2320 char *myhostname(void)
2328 /*****************************************************************
2329 A useful function for returning a path in the Samba lock directory.
2330 *****************************************************************/
2332 char *lock_path(const char *name)
2334 static pstring fname;
2336 pstrcpy(fname,lp_lockdir());
2337 trim_char(fname,'\0','/');
2339 if (!directory_exist(fname,NULL))
2343 pstrcat(fname,name);
2348 /*****************************************************************
2349 A useful function for returning a path in the Samba pid directory.
2350 *****************************************************************/
2352 char *pid_path(const char *name)
2354 static pstring fname;
2356 pstrcpy(fname,lp_piddir());
2357 trim_char(fname,'\0','/');
2359 if (!directory_exist(fname,NULL))
2363 pstrcat(fname,name);
2369 * @brief Returns an absolute path to a file in the Samba lib directory.
2371 * @param name File to find, relative to LIBDIR.
2373 * @retval Pointer to a static #pstring containing the full path.
2376 char *lib_path(const char *name)
2378 static pstring fname;
2379 fstr_sprintf(fname, "%s/%s", dyn_LIBDIR, name);
2384 * @brief Returns the platform specific shared library extension.
2386 * @retval Pointer to a static #fstring containing the extension.
2389 const char *shlib_ext(void)
2391 return dyn_SHLIBEXT;
2394 /*******************************************************************
2395 Given a filename - get its directory name
2396 NB: Returned in static storage. Caveats:
2397 o Not safe in thread environment.
2398 o Caller must not free.
2399 o If caller wishes to preserve, they should copy.
2400 ********************************************************************/
2402 char *parent_dirname(const char *path)
2404 static pstring dirpath;
2410 pstrcpy(dirpath, path);
2411 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
2413 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
2416 ++p; /* For root "/", leave "/" in place */
2423 /*******************************************************************
2424 Determine if a pattern contains any Microsoft wildcard characters.
2425 *******************************************************************/
2427 BOOL ms_has_wild(const char *s)
2430 while ((c = *s++)) {
2443 BOOL ms_has_wild_w(const smb_ucs2_t *s)
2446 if (!s) return False;
2447 while ((c = *s++)) {
2449 case UCS2_CHAR('*'):
2450 case UCS2_CHAR('?'):
2451 case UCS2_CHAR('<'):
2452 case UCS2_CHAR('>'):
2453 case UCS2_CHAR('"'):
2460 /*******************************************************************
2461 A wrapper that handles case sensitivity and the special handling
2463 *******************************************************************/
2465 BOOL mask_match(const char *string, char *pattern, BOOL is_case_sensitive)
2467 if (strcmp(string,"..") == 0)
2469 if (strcmp(pattern,".") == 0)
2472 return ms_fnmatch(pattern, string, Protocol, is_case_sensitive) == 0;
2475 /*******************************************************************
2476 A wrapper that handles a list of patters and calls mask_match()
2477 on each. Returns True if any of the patterns match.
2478 *******************************************************************/
2480 BOOL mask_match_list(const char *string, char **list, int listLen, BOOL is_case_sensitive)
2482 while (listLen-- > 0) {
2483 if (mask_match(string, *list++, is_case_sensitive))
2489 /*********************************************************
2490 Recursive routine that is called by unix_wild_match.
2491 *********************************************************/
2493 static BOOL unix_do_match(const char *regexp, const char *str)
2497 for( p = regexp; *p && *str; ) {
2508 * Look for a character matching
2509 * the one after the '*'.
2513 return True; /* Automatic match */
2516 while(*str && (*p != *str))
2520 * Patch from weidel@multichart.de. In the case of the regexp
2521 * '*XX*' we want to ensure there are at least 2 'X' characters
2522 * in the string after the '*' for a match to be made.
2529 * Eat all the characters that match, but count how many there were.
2532 while(*str && (*p == *str)) {
2538 * Now check that if the regexp had n identical characters that
2539 * matchcount had at least that many matches.
2542 while ( *(p+1) && (*(p+1) == *p)) {
2547 if ( matchcount <= 0 )
2551 str--; /* We've eaten the match char after the '*' */
2553 if(unix_do_match(p, str))
2575 if (!*p && str[0] == '.' && str[1] == 0)
2578 if (!*str && *p == '?') {
2584 if(!*str && (*p == '*' && p[1] == '\0'))
2590 /*******************************************************************
2591 Simple case insensitive interface to a UNIX wildcard matcher.
2592 *******************************************************************/
2594 BOOL unix_wild_match(const char *pattern, const char *string)
2599 pstrcpy(p2, pattern);
2600 pstrcpy(s2, string);
2604 /* Remove any *? and ** from the pattern as they are meaningless */
2605 for(p = p2; *p; p++)
2606 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
2607 pstrcpy( &p[1], &p[2]);
2609 if (strequal(p2,"*"))
2612 return unix_do_match(p2, s2) == 0;
2615 /**********************************************************************
2616 Converts a name to a fully qalified domain name.
2617 ***********************************************************************/
2619 void name_to_fqdn(fstring fqdn, const char *name)
2621 struct hostent *hp = sys_gethostbyname(name);
2622 if ( hp && hp->h_name && *hp->h_name ) {
2623 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, hp->h_name));
2624 fstrcpy(fqdn,hp->h_name);
2626 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2627 fstrcpy(fqdn, name);
2633 /*******************************************************************
2634 This routine is a trick to immediately catch errors when debugging
2635 with insure. A xterm with a gdb is popped up when insure catches
2636 a error. It is Linux specific.
2637 ********************************************************************/
2639 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2644 /* you can get /usr/bin/backtrace from
2645 http://samba.org/ftp/unpacked/junkcode/backtrace */
2646 pstring cmd = "/usr/bin/backtrace %d";
2648 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2649 pstring_sub(cmd, "%d", pidstr);
2653 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2654 fn = dlsym(h, "_Insure_trap_error");
2656 if (!h || h == _Insure_trap_error) {
2657 h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
2658 fn = dlsym(h, "_Insure_trap_error");
2662 ret = fn(a1, a2, a3, a4, a5, a6);