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 /* We only uppercase if the protocol is downrev.
645 Strange, but verified on W2K3. Needed for OS/2. JRA. */
646 push_ascii(buf+30,fname,12,Protocol < PROTOCOL_NT1 ? STR_UPPER : 0);
647 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
650 /*******************************************************************
651 Close the low 3 fd's and open dev/null in their place.
652 ********************************************************************/
654 void close_low_fds(BOOL stderr_too)
666 /* try and use up these file descriptors, so silly
667 library routines writing to stdout etc won't cause havoc */
669 if (i == 2 && !stderr_too)
672 fd = sys_open("/dev/null",O_RDWR,0);
674 fd = sys_open("/dev/null",O_WRONLY,0);
676 DEBUG(0,("Can't open /dev/null\n"));
680 DEBUG(0,("Didn't get file descriptor %d\n",i));
687 /****************************************************************************
688 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
692 ****************************************************************************/
694 int set_blocking(int fd, BOOL set)
698 #define FLAG_TO_SET O_NONBLOCK
701 #define FLAG_TO_SET O_NDELAY
703 #define FLAG_TO_SET FNDELAY
707 if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
709 if(set) /* Turn blocking on - ie. clear nonblock flag */
713 return sys_fcntl_long( fd, F_SETFL, val);
717 /****************************************************************************
718 Transfer some data between two fd's.
719 ****************************************************************************/
721 #ifndef TRANSFER_BUF_SIZE
722 #define TRANSFER_BUF_SIZE 65536
725 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
726 ssize_t (*write_fn)(int, const void *, size_t))
732 size_t num_to_read_thistime;
733 size_t num_written = 0;
735 if ((buf = SMB_MALLOC(TRANSFER_BUF_SIZE)) == NULL)
739 num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
741 read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
742 if (read_ret == -1) {
743 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
752 while (num_written < read_ret) {
753 write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
755 if (write_ret == -1) {
756 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
761 return (ssize_t)total;
763 num_written += (size_t)write_ret;
766 total += (size_t)read_ret;
770 return (ssize_t)total;
773 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
775 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
778 /*******************************************************************
779 Sleep for a specified number of milliseconds.
780 ********************************************************************/
782 void smb_msleep(unsigned int t)
784 #if defined(HAVE_NANOSLEEP)
785 struct timespec tval;
788 tval.tv_sec = t/1000;
789 tval.tv_nsec = 1000000*(t%1000);
793 ret = nanosleep(&tval, &tval);
794 } while (ret < 0 && errno == EINTR && (tval.tv_sec > 0 || tval.tv_nsec > 0));
796 unsigned int tdiff=0;
797 struct timeval tval,t1,t2;
804 tval.tv_sec = (t-tdiff)/1000;
805 tval.tv_usec = 1000*((t-tdiff)%1000);
807 /* Never wait for more than 1 sec. */
808 if (tval.tv_sec > 1) {
815 sys_select_intr(0,&fds,NULL,NULL,&tval);
818 if (t2.tv_sec < t1.tv_sec) {
819 /* Someone adjusted time... */
823 tdiff = TvalDiff(&t1,&t2);
828 /****************************************************************************
829 Become a daemon, discarding the controlling terminal.
830 ****************************************************************************/
832 void become_daemon(BOOL Fork)
840 /* detach from the terminal */
843 #elif defined(TIOCNOTTY)
845 int i = sys_open("/dev/tty", O_RDWR, 0);
847 ioctl(i, (int) TIOCNOTTY, (char *)0);
851 #endif /* HAVE_SETSID */
853 /* Close fd's 0,1,2. Needed if started by rsh */
854 close_low_fds(False); /* Don't close stderr, let the debug system
855 attach it to the logfile */
858 /****************************************************************************
859 Put up a yes/no prompt.
860 ****************************************************************************/
867 if (!fgets(ans,sizeof(ans)-1,stdin))
870 if (*ans == 'y' || *ans == 'Y')
876 #if defined(PARANOID_MALLOC_CHECKER)
878 /****************************************************************************
879 Internal malloc wrapper. Externally visible.
880 ****************************************************************************/
882 void *malloc_(size_t size)
886 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
889 /****************************************************************************
890 Internal calloc wrapper. Not externally visible.
891 ****************************************************************************/
893 static void *calloc_(size_t count, size_t size)
896 return calloc(count, size);
897 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
900 /****************************************************************************
901 Internal realloc wrapper. Not externally visible.
902 ****************************************************************************/
904 static void *realloc_(void *ptr, size_t size)
907 return realloc(ptr, size);
908 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
911 #endif /* PARANOID_MALLOC_CHECKER */
913 /****************************************************************************
915 ****************************************************************************/
917 void *malloc_array(size_t el_size, unsigned int count)
919 if (count >= MAX_ALLOC_SIZE/el_size) {
923 #if defined(PARANOID_MALLOC_CHECKER)
924 return malloc_(el_size*count);
926 return malloc(el_size*count);
930 /****************************************************************************
932 ****************************************************************************/
934 void *calloc_array(size_t size, size_t nmemb)
936 if (nmemb >= MAX_ALLOC_SIZE/size) {
939 #if defined(PARANOID_MALLOC_CHECKER)
940 return calloc_(nmemb, size);
942 return calloc(nmemb, size);
946 /****************************************************************************
947 Expand a pointer to be a particular size.
948 ****************************************************************************/
950 void *Realloc(void *p,size_t size)
956 DEBUG(5,("Realloc asked for 0 bytes\n"));
960 #if defined(PARANOID_MALLOC_CHECKER)
962 ret = (void *)malloc_(size);
964 ret = (void *)realloc_(p,size);
967 ret = (void *)malloc(size);
969 ret = (void *)realloc(p,size);
973 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
978 /****************************************************************************
980 ****************************************************************************/
982 void *realloc_array(void *p,size_t el_size, unsigned int count)
984 if (count >= MAX_ALLOC_SIZE/el_size) {
987 return Realloc(p,el_size*count);
990 /****************************************************************************
991 Free memory, checks for NULL.
992 Use directly SAFE_FREE()
993 Exists only because we need to pass a function pointer somewhere --SSS
994 ****************************************************************************/
996 void safe_free(void *p)
1001 /****************************************************************************
1002 Get my own name and IP.
1003 ****************************************************************************/
1005 BOOL get_myname(char *my_name)
1011 /* get my host name */
1012 if (gethostname(hostname, sizeof(hostname)) == -1) {
1013 DEBUG(0,("gethostname failed\n"));
1017 /* Ensure null termination. */
1018 hostname[sizeof(hostname)-1] = '\0';
1021 /* split off any parts after an initial . */
1022 char *p = strchr_m(hostname,'.');
1027 fstrcpy(my_name,hostname);
1033 /****************************************************************************
1034 Get my own canonical name, including domain.
1035 ****************************************************************************/
1037 BOOL get_mydnsfullname(fstring my_dnsname)
1039 static fstring dnshostname;
1042 if (!*dnshostname) {
1043 /* get my host name */
1044 if (gethostname(dnshostname, sizeof(dnshostname)) == -1) {
1045 *dnshostname = '\0';
1046 DEBUG(0,("gethostname failed\n"));
1050 /* Ensure null termination. */
1051 dnshostname[sizeof(dnshostname)-1] = '\0';
1053 /* Ensure we get the cannonical name. */
1054 if (!(hp = sys_gethostbyname(dnshostname))) {
1055 *dnshostname = '\0';
1058 fstrcpy(dnshostname, hp->h_name);
1060 fstrcpy(my_dnsname, dnshostname);
1064 /****************************************************************************
1065 Get my own domain name.
1066 ****************************************************************************/
1068 BOOL get_mydnsdomname(fstring my_domname)
1074 if (!get_mydnsfullname(domname)) {
1077 p = strchr_m(domname, '.');
1080 fstrcpy(my_domname, p);
1086 /****************************************************************************
1087 Interpret a protocol description string, with a default.
1088 ****************************************************************************/
1090 int interpret_protocol(const char *str,int def)
1092 if (strequal(str,"NT1"))
1093 return(PROTOCOL_NT1);
1094 if (strequal(str,"LANMAN2"))
1095 return(PROTOCOL_LANMAN2);
1096 if (strequal(str,"LANMAN1"))
1097 return(PROTOCOL_LANMAN1);
1098 if (strequal(str,"CORE"))
1099 return(PROTOCOL_CORE);
1100 if (strequal(str,"COREPLUS"))
1101 return(PROTOCOL_COREPLUS);
1102 if (strequal(str,"CORE+"))
1103 return(PROTOCOL_COREPLUS);
1105 DEBUG(0,("Unrecognised protocol level %s\n",str));
1110 /****************************************************************************
1111 Return true if a string could be a pure IP address.
1112 ****************************************************************************/
1114 BOOL is_ipaddress(const char *str)
1116 BOOL pure_address = True;
1119 for (i=0; pure_address && str[i]; i++)
1120 if (!(isdigit((int)str[i]) || str[i] == '.'))
1121 pure_address = False;
1123 /* Check that a pure number is not misinterpreted as an IP */
1124 pure_address = pure_address && (strchr_m(str, '.') != NULL);
1126 return pure_address;
1129 /****************************************************************************
1130 Interpret an internet address or name into an IP address in 4 byte form.
1131 ****************************************************************************/
1133 uint32 interpret_addr(const char *str)
1138 if (strcmp(str,"0.0.0.0") == 0)
1140 if (strcmp(str,"255.255.255.255") == 0)
1143 /* if it's in the form of an IP address then get the lib to interpret it */
1144 if (is_ipaddress(str)) {
1145 res = inet_addr(str);
1147 /* otherwise assume it's a network name of some sort and use
1148 sys_gethostbyname */
1149 if ((hp = sys_gethostbyname(str)) == 0) {
1150 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
1154 if(hp->h_addr == NULL) {
1155 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
1158 putip((char *)&res,(char *)hp->h_addr);
1161 if (res == (uint32)-1)
1167 /*******************************************************************
1168 A convenient addition to interpret_addr().
1169 ******************************************************************/
1171 struct in_addr *interpret_addr2(const char *str)
1173 static struct in_addr ret;
1174 uint32 a = interpret_addr(str);
1179 /*******************************************************************
1180 Check if an IP is the 0.0.0.0.
1181 ******************************************************************/
1183 BOOL is_zero_ip(struct in_addr ip)
1186 putip((char *)&a,(char *)&ip);
1190 /*******************************************************************
1191 Set an IP to 0.0.0.0.
1192 ******************************************************************/
1194 void zero_ip(struct in_addr *ip)
1197 static struct in_addr ipzero;
1200 ipzero = *interpret_addr2("0.0.0.0");
1207 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1208 /******************************************************************
1209 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1210 Based on a fix from <Thomas.Hepper@icem.de>.
1211 *******************************************************************/
1213 static void strip_mount_options( pstring *str)
1217 while(*p && !isspace(*p))
1219 while(*p && isspace(*p))
1224 pstrcpy(tmp_str, p);
1225 pstrcpy(*str, tmp_str);
1230 /*******************************************************************
1231 Patch from jkf@soton.ac.uk
1232 Split Luke's automount_server into YP lookup and string splitter
1233 so can easily implement automount_path().
1234 As we may end up doing both, cache the last YP result.
1235 *******************************************************************/
1237 #ifdef WITH_NISPLUS_HOME
1238 char *automount_lookup( char *user_name)
1240 static fstring last_key = "";
1241 static pstring last_value = "";
1243 char *nis_map = (char *)lp_nis_home_map_name();
1245 char buffer[NIS_MAXATTRVAL + 1];
1250 if (strcmp(user_name, last_key)) {
1251 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
1252 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1254 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1255 if (result->status != NIS_SUCCESS) {
1256 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1257 fstrcpy(last_key, ""); pstrcpy(last_value, "");
1259 object = result->objects.objects_val;
1260 if (object->zo_data.zo_type == ENTRY_OBJ) {
1261 entry = &object->zo_data.objdata_u.en_data;
1262 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1263 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1265 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1266 pstring_sub(last_value, "&", user_name);
1267 fstrcpy(last_key, user_name);
1271 nis_freeresult(result);
1274 strip_mount_options(&last_value);
1276 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
1279 #else /* WITH_NISPLUS_HOME */
1281 char *automount_lookup( char *user_name)
1283 static fstring last_key = "";
1284 static pstring last_value = "";
1286 int nis_error; /* returned by yp all functions */
1287 char *nis_result; /* yp_match inits this */
1288 int nis_result_len; /* and set this */
1289 char *nis_domain; /* yp_get_default_domain inits this */
1290 char *nis_map = (char *)lp_nis_home_map_name();
1292 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1293 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1297 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1299 if (!strcmp(user_name, last_key)) {
1300 nis_result = last_value;
1301 nis_result_len = strlen(last_value);
1304 if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
1305 &nis_result, &nis_result_len)) == 0) {
1306 if (!nis_error && nis_result_len >= sizeof(pstring)) {
1307 nis_result_len = sizeof(pstring)-1;
1309 fstrcpy(last_key, user_name);
1310 strncpy(last_value, nis_result, nis_result_len);
1311 last_value[nis_result_len] = '\0';
1312 strip_mount_options(&last_value);
1314 } else if(nis_error == YPERR_KEY) {
1316 /* If Key lookup fails user home server is not in nis_map
1317 use default information for server, and home directory */
1319 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1320 user_name, nis_map));
1321 DEBUG(3, ("using defaults for server and home directory\n"));
1323 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1324 yperr_string(nis_error), user_name, nis_map));
1328 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
1331 #endif /* WITH_NISPLUS_HOME */
1334 /*******************************************************************
1335 Are two IPs on the same subnet?
1336 ********************************************************************/
1338 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
1340 uint32 net1,net2,nmask;
1342 nmask = ntohl(mask.s_addr);
1343 net1 = ntohl(ip1.s_addr);
1344 net2 = ntohl(ip2.s_addr);
1346 return((net1 & nmask) == (net2 & nmask));
1350 /****************************************************************************
1351 Check if a process exists. Does this work on all unixes?
1352 ****************************************************************************/
1354 BOOL process_exists(pid_t pid)
1356 /* Doing kill with a non-positive pid causes messages to be
1357 * sent to places we don't want. */
1358 SMB_ASSERT(pid > 0);
1359 return(kill(pid,0) == 0 || errno != ESRCH);
1362 /*******************************************************************
1363 Convert a uid into a user name.
1364 ********************************************************************/
1366 const char *uidtoname(uid_t uid)
1368 static fstring name;
1369 struct passwd *pass;
1371 pass = getpwuid_alloc(uid);
1373 fstrcpy(name, pass->pw_name);
1376 slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
1382 /*******************************************************************
1383 Convert a gid into a group name.
1384 ********************************************************************/
1386 char *gidtoname(gid_t gid)
1388 static fstring name;
1391 grp = getgrgid(gid);
1393 return(grp->gr_name);
1394 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1398 /*******************************************************************
1399 Convert a user name into a uid.
1400 ********************************************************************/
1402 uid_t nametouid(const char *name)
1404 struct passwd *pass;
1408 pass = getpwnam_alloc(name);
1415 u = (uid_t)strtol(name, &p, 0);
1416 if ((p != name) && (*p == '\0'))
1422 /*******************************************************************
1423 Convert a name to a gid_t if possible. Return -1 if not a group.
1424 ********************************************************************/
1426 gid_t nametogid(const char *name)
1432 g = (gid_t)strtol(name, &p, 0);
1433 if ((p != name) && (*p == '\0'))
1436 grp = sys_getgrnam(name);
1438 return(grp->gr_gid);
1442 /*******************************************************************
1443 legacy wrapper for smb_panic2()
1444 ********************************************************************/
1445 void smb_panic( const char *why )
1447 smb_panic2( why, True );
1450 /*******************************************************************
1451 Something really nasty happened - panic !
1452 ********************************************************************/
1454 #ifdef HAVE_LIBEXC_H
1458 void smb_panic2(const char *why, BOOL decrement_pid_count )
1462 #ifdef HAVE_BACKTRACE_SYMBOLS
1463 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1464 size_t backtrace_size;
1465 char **backtrace_strings;
1470 extern char *global_clobber_region_function;
1471 extern unsigned int global_clobber_region_line;
1473 if (global_clobber_region_function) {
1474 DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
1475 global_clobber_region_function,
1476 global_clobber_region_line));
1481 /* only smbd needs to decrement the smbd counter in connections.tdb */
1482 if ( decrement_pid_count )
1483 decrement_smbd_process_count();
1485 cmd = lp_panic_action();
1487 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1488 result = system(cmd);
1491 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1494 DEBUG(0, ("smb_panic(): action returned status %d\n",
1495 WEXITSTATUS(result)));
1497 DEBUG(0,("PANIC: %s\n", why));
1499 #ifdef HAVE_BACKTRACE_SYMBOLS
1500 /* get the backtrace (stack frames) */
1501 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1502 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1504 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1505 (unsigned long)backtrace_size));
1507 if (backtrace_strings) {
1510 for (i = 0; i < backtrace_size; i++)
1511 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1513 /* Leak the backtrace_strings, rather than risk what free() might do */
1518 #define NAMESIZE 32 /* Arbitrary */
1520 /* The IRIX libexc library provides an API for unwinding the stack. See
1521 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1522 * since we are about to abort anyway, it hardly matters.
1524 * Note that if we paniced due to a SIGSEGV or SIGBUS (or similar) this
1525 * will fail with a nasty message upon failing to open the /proc entry.
1528 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1529 char * names[BACKTRACE_STACK_SIZE];
1530 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1537 ZERO_ARRAY(namebuf);
1539 /* We need to be root so we can open our /proc entry to walk
1540 * our stack. It also helps when we want to dump core.
1544 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1545 names[i] = namebuf + (i * NAMESIZE);
1548 levels = trace_back_stack(0, addrs, names,
1549 BACKTRACE_STACK_SIZE, NAMESIZE);
1551 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1552 for (i = 0; i < levels; i++) {
1553 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1561 CatchSignal(SIGABRT,SIGNAL_CAST SIG_DFL);
1566 /*******************************************************************
1567 A readdir wrapper which just returns the file name.
1568 ********************************************************************/
1570 const char *readdirname(DIR *p)
1572 SMB_STRUCT_DIRENT *ptr;
1578 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1582 dname = ptr->d_name;
1589 #ifdef HAVE_BROKEN_READDIR
1590 /* using /usr/ucb/cc is BAD */
1596 int len = NAMLEN(ptr);
1597 memcpy(buf, dname, len);
1605 /*******************************************************************
1606 Utility function used to decide if the last component
1607 of a path matches a (possibly wildcarded) entry in a namelist.
1608 ********************************************************************/
1610 BOOL is_in_path(const char *name, name_compare_entry *namelist, BOOL case_sensitive)
1612 pstring last_component;
1615 /* if we have no list it's obviously not in the path */
1616 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1620 DEBUG(8, ("is_in_path: %s\n", name));
1622 /* Get the last component of the unix name. */
1623 p = strrchr_m(name, '/');
1624 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1625 last_component[sizeof(last_component)-1] = '\0';
1627 for(; namelist->name != NULL; namelist++) {
1628 if(namelist->is_wild) {
1629 if (mask_match(last_component, namelist->name, case_sensitive)) {
1630 DEBUG(8,("is_in_path: mask match succeeded\n"));
1634 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1635 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1636 DEBUG(8,("is_in_path: match succeeded\n"));
1641 DEBUG(8,("is_in_path: match not found\n"));
1646 /*******************************************************************
1647 Strip a '/' separated list into an array of
1648 name_compare_enties structures suitable for
1649 passing to is_in_path(). We do this for
1650 speed so we can pre-parse all the names in the list
1651 and don't do it for each call to is_in_path().
1652 namelist is modified here and is assumed to be
1653 a copy owned by the caller.
1654 We also check if the entry contains a wildcard to
1655 remove a potentially expensive call to mask_match
1657 ********************************************************************/
1659 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1662 char *nameptr = namelist;
1663 int num_entries = 0;
1666 (*ppname_array) = NULL;
1668 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1671 /* We need to make two passes over the string. The
1672 first to count the number of elements, the second
1677 if ( *nameptr == '/' ) {
1678 /* cope with multiple (useless) /s) */
1682 /* find the next / */
1683 name_end = strchr_m(nameptr, '/');
1685 /* oops - the last check for a / didn't find one. */
1686 if (name_end == NULL)
1689 /* next segment please */
1690 nameptr = name_end + 1;
1694 if(num_entries == 0)
1697 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1698 DEBUG(0,("set_namearray: malloc fail\n"));
1702 /* Now copy out the names */
1706 if ( *nameptr == '/' ) {
1707 /* cope with multiple (useless) /s) */
1711 /* find the next / */
1712 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1715 /* oops - the last check for a / didn't find one. */
1716 if(name_end == NULL)
1719 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1720 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1721 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1725 /* next segment please */
1726 nameptr = name_end + 1;
1730 (*ppname_array)[i].name = NULL;
1735 /****************************************************************************
1736 Routine to free a namearray.
1737 ****************************************************************************/
1739 void free_namearray(name_compare_entry *name_array)
1743 if(name_array == NULL)
1746 for(i=0; name_array[i].name!=NULL; i++)
1747 SAFE_FREE(name_array[i].name);
1748 SAFE_FREE(name_array);
1751 /****************************************************************************
1752 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1753 is dealt with in posix.c
1754 ****************************************************************************/
1756 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1758 SMB_STRUCT_FLOCK lock;
1761 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1764 lock.l_whence = SEEK_SET;
1765 lock.l_start = offset;
1769 ret = sys_fcntl_ptr(fd,op,&lock);
1771 if (ret == -1 && errno != 0)
1772 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1775 if (op == SMB_F_GETLK) {
1777 (lock.l_type != F_UNLCK) &&
1778 (lock.l_pid != 0) &&
1779 (lock.l_pid != sys_getpid())) {
1780 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1784 /* it must be not locked or locked by me */
1788 /* a lock set or unset */
1790 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1791 (double)offset,(double)count,op,type,strerror(errno)));
1795 /* everything went OK */
1796 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1801 /*******************************************************************
1802 Is the name specified one of my netbios names.
1803 Returns true if it is equal, false otherwise.
1804 ********************************************************************/
1806 BOOL is_myname(const char *s)
1811 for (n=0; my_netbios_names(n); n++) {
1812 if (strequal(my_netbios_names(n), s)) {
1817 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1821 BOOL is_myname_or_ipaddr(const char *s)
1823 fstring name, dnsname;
1829 /* santize the string from '\\name' */
1833 servername = strrchr_m( name, '\\' );
1839 /* optimize for the common case */
1841 if (strequal(servername, global_myname()))
1844 /* check for an alias */
1846 if (is_myname(servername))
1849 /* check for loopback */
1851 if (strequal(servername, "localhost"))
1854 /* maybe it's my dns name */
1856 if ( get_mydnsfullname( dnsname ) )
1857 if ( strequal( servername, dnsname ) )
1860 /* handle possible CNAME records */
1862 if ( !is_ipaddress( servername ) ) {
1863 /* use DNS to resolve the name, but only the first address */
1866 if (((hp = sys_gethostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
1867 struct in_addr return_ip;
1868 putip( (char*)&return_ip, (char*)hp->h_addr );
1869 fstrcpy( name, inet_ntoa( return_ip ) );
1874 /* maybe its an IP address? */
1875 if (is_ipaddress(servername)) {
1876 struct iface_struct nics[MAX_INTERFACES];
1880 ip = interpret_addr(servername);
1881 if ((ip==0) || (ip==0xffffffff))
1884 n = get_interfaces(nics, MAX_INTERFACES);
1885 for (i=0; i<n; i++) {
1886 if (ip == nics[i].ip.s_addr)
1895 /*******************************************************************
1896 Is the name specified our workgroup/domain.
1897 Returns true if it is equal, false otherwise.
1898 ********************************************************************/
1900 BOOL is_myworkgroup(const char *s)
1904 if (strequal(s, lp_workgroup())) {
1908 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1912 /*******************************************************************
1913 we distinguish between 2K and XP by the "Native Lan Manager" string
1914 WinXP => "Windows 2002 5.1"
1915 Win2k => "Windows 2000 5.0"
1916 NT4 => "Windows NT 4.0"
1917 Win9x => "Windows 4.0"
1918 Windows 2003 doesn't set the native lan manager string but
1919 they do set the domain to "Windows 2003 5.2" (probably a bug).
1920 ********************************************************************/
1922 void ra_lanman_string( const char *native_lanman )
1924 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1925 set_remote_arch( RA_WINXP );
1926 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1927 set_remote_arch( RA_WIN2K3 );
1930 /*******************************************************************
1931 Set the horrid remote_arch string based on an enum.
1932 ********************************************************************/
1934 void set_remote_arch(enum remote_arch_types type)
1936 extern fstring remote_arch;
1940 fstrcpy(remote_arch, "WfWg");
1943 fstrcpy(remote_arch, "OS2");
1946 fstrcpy(remote_arch, "Win95");
1949 fstrcpy(remote_arch, "WinNT");
1952 fstrcpy(remote_arch, "Win2K");
1955 fstrcpy(remote_arch, "WinXP");
1958 fstrcpy(remote_arch, "Win2K3");
1961 fstrcpy(remote_arch,"Samba");
1964 fstrcpy(remote_arch,"CIFSFS");
1967 ra_type = RA_UNKNOWN;
1968 fstrcpy(remote_arch, "UNKNOWN");
1972 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", remote_arch));
1975 /*******************************************************************
1976 Get the remote_arch type.
1977 ********************************************************************/
1979 enum remote_arch_types get_remote_arch(void)
1984 void print_asc(int level, const unsigned char *buf,int len)
1988 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1991 void dump_data(int level, const char *buf1,int len)
1993 const unsigned char *buf = (const unsigned char *)buf1;
1997 if (!DEBUGLVL(level)) return;
1999 DEBUGADD(level,("[%03X] ",i));
2001 DEBUGADD(level,("%02X ",(int)buf[i]));
2003 if (i%8 == 0) DEBUGADD(level,(" "));
2005 print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
2006 print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
2007 if (i<len) DEBUGADD(level,("[%03X] ",i));
2013 DEBUGADD(level,(" "));
2014 if (n>8) DEBUGADD(level,(" "));
2015 while (n--) DEBUGADD(level,(" "));
2017 print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
2019 if (n>0) print_asc(level,&buf[i-n],n);
2020 DEBUGADD(level,("\n"));
2024 void dump_data_pw(const char *msg, const uchar * data, size_t len)
2026 #ifdef DEBUG_PASSWORD
2027 DEBUG(11, ("%s", msg));
2028 if (data != NULL && len > 0)
2030 dump_data(11, data, len);
2035 char *tab_depth(int depth)
2037 static pstring spaces;
2038 memset(spaces, ' ', depth * 4);
2039 spaces[depth * 4] = 0;
2043 /*****************************************************************************
2044 Provide a checksum on a string
2046 Input: s - the null-terminated character string for which the checksum
2049 Output: The checksum value calculated for s.
2050 *****************************************************************************/
2052 int str_checksum(const char *s)
2060 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
2067 /*****************************************************************
2068 Zero a memory area then free it. Used to catch bugs faster.
2069 *****************************************************************/
2071 void zero_free(void *p, size_t size)
2077 /*****************************************************************
2078 Set our open file limit to a requested max and return the limit.
2079 *****************************************************************/
2081 int set_maxfiles(int requested_max)
2083 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
2085 int saved_current_limit;
2087 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
2088 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
2091 return requested_max;
2095 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
2096 * account for the extra fd we need
2097 * as well as the log files and standard
2098 * handles etc. Save the limit we want to set in case
2099 * we are running on an OS that doesn't support this limit (AIX)
2100 * which always returns RLIM_INFINITY for rlp.rlim_max.
2103 /* Try raising the hard (max) limit to the requested amount. */
2105 #if defined(RLIM_INFINITY)
2106 if (rlp.rlim_max != RLIM_INFINITY) {
2107 int orig_max = rlp.rlim_max;
2109 if ( rlp.rlim_max < requested_max )
2110 rlp.rlim_max = requested_max;
2112 /* This failing is not an error - many systems (Linux) don't
2113 support our default request of 10,000 open files. JRA. */
2115 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
2116 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
2117 (int)rlp.rlim_max, strerror(errno) ));
2119 /* Set failed - restore original value from get. */
2120 rlp.rlim_max = orig_max;
2125 /* Now try setting the soft (current) limit. */
2127 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
2129 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
2130 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
2131 (int)rlp.rlim_cur, strerror(errno) ));
2133 return saved_current_limit;
2136 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
2137 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
2140 return saved_current_limit;
2143 #if defined(RLIM_INFINITY)
2144 if(rlp.rlim_cur == RLIM_INFINITY)
2145 return saved_current_limit;
2148 if((int)rlp.rlim_cur > saved_current_limit)
2149 return saved_current_limit;
2151 return rlp.rlim_cur;
2152 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
2154 * No way to know - just guess...
2156 return requested_max;
2160 /*****************************************************************
2161 Splits out the start of the key (HKLM or HKU) and the rest of the key.
2162 *****************************************************************/
2164 BOOL reg_split_key(const char *full_keyname, uint32 *reg_type, char *key_name)
2168 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
2173 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
2175 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
2176 (*reg_type) = HKEY_LOCAL_MACHINE;
2177 else if (strequal(tmp, "HKCR") || strequal(tmp, "HKEY_CLASSES_ROOT"))
2178 (*reg_type) = HKEY_CLASSES_ROOT;
2179 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
2180 (*reg_type) = HKEY_USERS;
2181 else if (strequal(tmp, "HKPD")||strequal(tmp, "HKEY_PERFORMANCE_DATA"))
2182 (*reg_type) = HKEY_PERFORMANCE_DATA;
2184 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
2188 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
2189 fstrcpy(key_name, tmp);
2193 DEBUG(10, ("reg_split_key: name %s\n", key_name));
2198 /*****************************************************************
2199 Possibly replace mkstemp if it is broken.
2200 *****************************************************************/
2202 int smb_mkstemp(char *template)
2204 #if HAVE_SECURE_MKSTEMP
2205 return mkstemp(template);
2207 /* have a reasonable go at emulating it. Hope that
2208 the system mktemp() isn't completly hopeless */
2209 char *p = mktemp(template);
2212 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
2216 /*****************************************************************
2217 malloc that aborts with smb_panic on fail or zero size.
2218 *****************************************************************/
2220 void *smb_xmalloc_array(size_t size, unsigned int count)
2224 smb_panic("smb_xmalloc_array: called with zero size.\n");
2225 if (count >= MAX_ALLOC_SIZE/size) {
2226 smb_panic("smb_xmalloc: alloc size too large.\n");
2228 if ((p = SMB_MALLOC(size*count)) == NULL) {
2229 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2230 (unsigned long)size, (unsigned long)count));
2231 smb_panic("smb_xmalloc_array: malloc fail.\n");
2237 Memdup with smb_panic on fail.
2240 void *smb_xmemdup(const void *p, size_t size)
2243 p2 = SMB_XMALLOC_ARRAY(unsigned char,size);
2244 memcpy(p2, p, size);
2249 strdup that aborts on malloc fail.
2252 char *smb_xstrdup(const char *s)
2254 #if defined(PARANOID_MALLOC_CHECKER)
2259 char *s1 = strdup(s);
2260 #if defined(PARANOID_MALLOC_CHECKER)
2261 #define strdup(s) __ERROR_DONT_USE_STRDUP_DIRECTLY
2264 smb_panic("smb_xstrdup: malloc fail\n");
2270 strndup that aborts on malloc fail.
2273 char *smb_xstrndup(const char *s, size_t n)
2275 #if defined(PARANOID_MALLOC_CHECKER)
2280 char *s1 = strndup(s, n);
2281 #if defined(PARANOID_MALLOC_CHECKER)
2282 #define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
2285 smb_panic("smb_xstrndup: malloc fail\n");
2290 vasprintf that aborts on malloc fail
2293 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2300 n = vasprintf(ptr, format, ap2);
2301 if (n == -1 || ! *ptr)
2302 smb_panic("smb_xvasprintf: out of memory");
2306 /*****************************************************************
2307 Like strdup but for memory.
2308 *****************************************************************/
2310 void *memdup(const void *p, size_t size)
2315 p2 = SMB_MALLOC(size);
2318 memcpy(p2, p, size);
2322 /*****************************************************************
2323 Get local hostname and cache result.
2324 *****************************************************************/
2326 char *myhostname(void)
2334 /*****************************************************************
2335 A useful function for returning a path in the Samba lock directory.
2336 *****************************************************************/
2338 char *lock_path(const char *name)
2340 static pstring fname;
2342 pstrcpy(fname,lp_lockdir());
2343 trim_char(fname,'\0','/');
2345 if (!directory_exist(fname,NULL))
2349 pstrcat(fname,name);
2354 /*****************************************************************
2355 A useful function for returning a path in the Samba pid directory.
2356 *****************************************************************/
2358 char *pid_path(const char *name)
2360 static pstring fname;
2362 pstrcpy(fname,lp_piddir());
2363 trim_char(fname,'\0','/');
2365 if (!directory_exist(fname,NULL))
2369 pstrcat(fname,name);
2375 * @brief Returns an absolute path to a file in the Samba lib directory.
2377 * @param name File to find, relative to LIBDIR.
2379 * @retval Pointer to a static #pstring containing the full path.
2382 char *lib_path(const char *name)
2384 static pstring fname;
2385 fstr_sprintf(fname, "%s/%s", dyn_LIBDIR, name);
2390 * @brief Returns the platform specific shared library extension.
2392 * @retval Pointer to a static #fstring containing the extension.
2395 const char *shlib_ext(void)
2397 return dyn_SHLIBEXT;
2400 /*******************************************************************
2401 Given a filename - get its directory name
2402 NB: Returned in static storage. Caveats:
2403 o Not safe in thread environment.
2404 o Caller must not free.
2405 o If caller wishes to preserve, they should copy.
2406 ********************************************************************/
2408 char *parent_dirname(const char *path)
2410 static pstring dirpath;
2416 pstrcpy(dirpath, path);
2417 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
2419 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
2422 ++p; /* For root "/", leave "/" in place */
2429 /*******************************************************************
2430 Determine if a pattern contains any Microsoft wildcard characters.
2431 *******************************************************************/
2433 BOOL ms_has_wild(const char *s)
2436 while ((c = *s++)) {
2449 BOOL ms_has_wild_w(const smb_ucs2_t *s)
2452 if (!s) return False;
2453 while ((c = *s++)) {
2455 case UCS2_CHAR('*'):
2456 case UCS2_CHAR('?'):
2457 case UCS2_CHAR('<'):
2458 case UCS2_CHAR('>'):
2459 case UCS2_CHAR('"'):
2466 /*******************************************************************
2467 A wrapper that handles case sensitivity and the special handling
2469 *******************************************************************/
2471 BOOL mask_match(const char *string, char *pattern, BOOL is_case_sensitive)
2473 if (strcmp(string,"..") == 0)
2475 if (strcmp(pattern,".") == 0)
2478 return ms_fnmatch(pattern, string, Protocol, is_case_sensitive) == 0;
2481 /*******************************************************************
2482 A wrapper that handles a list of patters and calls mask_match()
2483 on each. Returns True if any of the patterns match.
2484 *******************************************************************/
2486 BOOL mask_match_list(const char *string, char **list, int listLen, BOOL is_case_sensitive)
2488 while (listLen-- > 0) {
2489 if (mask_match(string, *list++, is_case_sensitive))
2495 /*********************************************************
2496 Recursive routine that is called by unix_wild_match.
2497 *********************************************************/
2499 static BOOL unix_do_match(const char *regexp, const char *str)
2503 for( p = regexp; *p && *str; ) {
2514 * Look for a character matching
2515 * the one after the '*'.
2519 return True; /* Automatic match */
2522 while(*str && (*p != *str))
2526 * Patch from weidel@multichart.de. In the case of the regexp
2527 * '*XX*' we want to ensure there are at least 2 'X' characters
2528 * in the string after the '*' for a match to be made.
2535 * Eat all the characters that match, but count how many there were.
2538 while(*str && (*p == *str)) {
2544 * Now check that if the regexp had n identical characters that
2545 * matchcount had at least that many matches.
2548 while ( *(p+1) && (*(p+1) == *p)) {
2553 if ( matchcount <= 0 )
2557 str--; /* We've eaten the match char after the '*' */
2559 if(unix_do_match(p, str))
2581 if (!*p && str[0] == '.' && str[1] == 0)
2584 if (!*str && *p == '?') {
2590 if(!*str && (*p == '*' && p[1] == '\0'))
2596 /*******************************************************************
2597 Simple case insensitive interface to a UNIX wildcard matcher.
2598 *******************************************************************/
2600 BOOL unix_wild_match(const char *pattern, const char *string)
2605 pstrcpy(p2, pattern);
2606 pstrcpy(s2, string);
2610 /* Remove any *? and ** from the pattern as they are meaningless */
2611 for(p = p2; *p; p++)
2612 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
2613 pstrcpy( &p[1], &p[2]);
2615 if (strequal(p2,"*"))
2618 return unix_do_match(p2, s2) == 0;
2621 /**********************************************************************
2622 Converts a name to a fully qalified domain name.
2623 ***********************************************************************/
2625 void name_to_fqdn(fstring fqdn, const char *name)
2627 struct hostent *hp = sys_gethostbyname(name);
2628 if ( hp && hp->h_name && *hp->h_name ) {
2629 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, hp->h_name));
2630 fstrcpy(fqdn,hp->h_name);
2632 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2633 fstrcpy(fqdn, name);
2639 /*******************************************************************
2640 This routine is a trick to immediately catch errors when debugging
2641 with insure. A xterm with a gdb is popped up when insure catches
2642 a error. It is Linux specific.
2643 ********************************************************************/
2645 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2650 /* you can get /usr/bin/backtrace from
2651 http://samba.org/ftp/unpacked/junkcode/backtrace */
2652 pstring cmd = "/usr/bin/backtrace %d";
2654 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2655 pstring_sub(cmd, "%d", pidstr);
2659 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2660 fn = dlsym(h, "_Insure_trap_error");
2662 if (!h || h == _Insure_trap_error) {
2663 h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
2664 fn = dlsym(h, "_Insure_trap_error");
2668 ret = fn(a1, a2, a3, a4, a5, a6);