2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
25 #ifdef WITH_NISPLUS_HOME
26 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
28 * The following lines are needed due to buggy include files
29 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
30 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
31 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
32 * an enum in /usr/include/rpcsvc/nis.h.
39 #if defined(GROUP_OBJ)
43 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
45 #include <rpcsvc/nis.h>
47 #else /* !WITH_NISPLUS_HOME */
49 #include "rpcsvc/ypclnt.h"
51 #endif /* WITH_NISPLUS_HOME */
52 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
55 #include <openssl/ssl.h>
56 #undef Realloc /* SSLeay defines this and samba has a function of this name */
61 int Protocol = PROTOCOL_COREPLUS;
63 /* a default finfo structure to ensure all fields are sensible */
64 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
66 /* this is used by the chaining code */
72 case handling on filenames
74 int case_default = CASE_LOWER;
76 /* the following control case operations - they are put here so the
77 client can link easily */
80 BOOL use_mangled_map = False;
81 BOOL short_case_preserve;
84 static enum remote_arch_types ra_type = RA_UNKNOWN;
85 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
87 pstring global_myname = "";
88 fstring global_myworkgroup = "";
89 char **my_netbios_names;
92 /****************************************************************************
93 find a suitable temporary directory. The result should be copied immediately
94 as it may be overwritten by a subsequent call
95 ****************************************************************************/
99 if ((p = getenv("TMPDIR"))) {
105 /****************************************************************************
106 determine whether we are in the specified group
107 ****************************************************************************/
109 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups)
113 if (group == current_gid) return(True);
115 for (i=0;i<ngroups;i++)
116 if (group == groups[i])
123 /****************************************************************************
124 like atoi but gets the value up to the separater character
125 ****************************************************************************/
126 char *Atoic(char *p, int *n, char *c)
128 if (!isdigit((int)*p))
130 DEBUG(5, ("Atoic: malformed number\n"));
136 while ((*p) && isdigit((int)*p))
141 if (strchr_m(c, *p) == NULL)
143 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
150 /*************************************************************************
151 reads a list of numbers
152 *************************************************************************/
153 char *get_numlist(char *p, uint32 **num, int *count)
157 if (num == NULL || count == NULL)
165 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':')
169 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
176 (*num)[(*count)] = val;
185 /*******************************************************************
186 check if a file exists - call vfs_file_exist for samba files
187 ********************************************************************/
188 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
191 if (!sbuf) sbuf = &st;
193 if (sys_stat(fname,sbuf) != 0)
196 return(S_ISREG(sbuf->st_mode));
199 /*******************************************************************
200 check a files mod time
201 ********************************************************************/
202 time_t file_modtime(char *fname)
206 if (sys_stat(fname,&st) != 0)
212 /*******************************************************************
213 check if a directory exists
214 ********************************************************************/
215 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
222 if (sys_stat(dname,st) != 0)
225 ret = S_ISDIR(st->st_mode);
231 /*******************************************************************
232 returns the size in bytes of the named file
233 ********************************************************************/
234 SMB_OFF_T get_file_size(char *file_name)
238 if(sys_stat(file_name,&buf) != 0)
239 return (SMB_OFF_T)-1;
243 /*******************************************************************
244 return a string representing an attribute for a file
245 ********************************************************************/
246 char *attrib_string(uint16 mode)
248 static fstring attrstr;
252 if (mode & aVOLID) fstrcat(attrstr,"V");
253 if (mode & aDIR) fstrcat(attrstr,"D");
254 if (mode & aARCH) fstrcat(attrstr,"A");
255 if (mode & aHIDDEN) fstrcat(attrstr,"H");
256 if (mode & aSYSTEM) fstrcat(attrstr,"S");
257 if (mode & aRONLY) fstrcat(attrstr,"R");
262 /*******************************************************************
263 show a smb message structure
264 ********************************************************************/
265 void show_msg(char *buf)
270 if (DEBUGLEVEL < 5) return;
272 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
274 (int)CVAL(buf,smb_com),
275 (int)CVAL(buf,smb_rcls),
276 (int)CVAL(buf,smb_reh),
277 (int)SVAL(buf,smb_err),
278 (int)CVAL(buf,smb_flg),
279 (int)SVAL(buf,smb_flg2)));
280 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
281 (int)SVAL(buf,smb_tid),
282 (int)SVAL(buf,smb_pid),
283 (int)SVAL(buf,smb_uid),
284 (int)SVAL(buf,smb_mid),
285 (int)CVAL(buf,smb_wct)));
287 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
289 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
290 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
293 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
295 DEBUG(5,("smb_bcc=%d\n",bcc));
297 if (DEBUGLEVEL < 10) return;
304 dump_data(10, smb_buf(buf), bcc);
307 /*******************************************************************
308 set the length and marker of an smb packet
309 ********************************************************************/
310 void smb_setlen(char *buf,int len)
312 _smb_setlen(buf,len);
320 /*******************************************************************
321 setup the word count and byte count for a smb message
322 ********************************************************************/
323 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
326 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
327 CVAL(buf,smb_wct) = num_words;
328 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
329 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
330 return (smb_size + num_words*2 + num_bytes);
333 /*******************************************************************
334 setup only the byte count for a smb message
335 ********************************************************************/
336 int set_message_bcc(char *buf,int num_bytes)
338 int num_words = CVAL(buf,smb_wct);
339 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
340 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
341 return (smb_size + num_words*2 + num_bytes);
344 /*******************************************************************
345 setup only the byte count for a smb message, using the end of the
347 ********************************************************************/
348 int set_message_end(void *outbuf,void *end_ptr)
350 return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
353 /*******************************************************************
354 reduce a file name, removing .. elements.
355 ********************************************************************/
356 void dos_clean_name(char *s)
360 DEBUG(3,("dos_clean_name [%s]\n",s));
362 /* remove any double slashes */
363 all_string_sub(s, "\\\\", "\\", 0);
365 while ((p = strstr(s,"\\..\\")) != NULL)
372 if ((p=strrchr_m(s,'\\')) != NULL)
379 trim_string(s,NULL,"\\..");
381 all_string_sub(s, "\\.\\", "\\", 0);
384 /*******************************************************************
385 reduce a file name, removing .. elements.
386 ********************************************************************/
387 void unix_clean_name(char *s)
391 DEBUG(3,("unix_clean_name [%s]\n",s));
393 /* remove any double slashes */
394 all_string_sub(s, "//","/", 0);
396 /* Remove leading ./ characters */
397 if(strncmp(s, "./", 2) == 0) {
398 trim_string(s, "./", NULL);
403 while ((p = strstr(s,"/../")) != NULL)
410 if ((p=strrchr_m(s,'/')) != NULL)
417 trim_string(s,NULL,"/..");
420 /****************************************************************************
422 ****************************************************************************/
423 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
430 if ((mode & aDIR) != 0)
433 memset(buf+1,' ',11);
434 if ((p = strchr_m(mask2,'.')) != NULL)
437 push_ascii(buf+1,mask2,8, 0);
438 push_ascii(buf+9,p+1,3, 0);
442 push_ascii(buf+1,mask2,11, 0);
444 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
446 put_dos_date(buf,22,date);
447 SSVAL(buf,26,size & 0xFFFF);
448 SSVAL(buf,28,(size >> 16)&0xFFFF);
449 push_ascii(buf+30,fname,12, 0);
452 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
456 /*******************************************************************
457 close the low 3 fd's and open dev/null in their place
458 ********************************************************************/
459 void close_low_fds(void)
467 /* try and use up these file descriptors, so silly
468 library routines writing to stdout etc won't cause havoc */
470 fd = sys_open("/dev/null",O_RDWR,0);
471 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
473 DEBUG(0,("Can't open /dev/null\n"));
477 DEBUG(0,("Didn't get file descriptor %d\n",i));
483 /****************************************************************************
484 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
488 ****************************************************************************/
489 int set_blocking(int fd, BOOL set)
493 #define FLAG_TO_SET O_NONBLOCK
496 #define FLAG_TO_SET O_NDELAY
498 #define FLAG_TO_SET FNDELAY
502 if((val = fcntl(fd, F_GETFL, 0)) == -1)
504 if(set) /* Turn blocking on - ie. clear nonblock flag */
508 return fcntl( fd, F_SETFL, val);
512 /****************************************************************************
513 Transfer some data between two fd's.
514 ****************************************************************************/
516 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
517 ssize_t (*write_fn)(int, const void *, size_t))
519 static char buf[16384];
522 size_t write_total = 0;
526 size_t num_to_read_thistime = MIN((n - total), sizeof(buf));
528 read_ret = (*read_fn)(infd, buf + total, num_to_read_thistime);
529 if (read_ret == -1) {
530 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
538 while (write_total < read_ret) {
539 write_ret = (*write_fn)(outfd,buf + total, read_ret);
541 if (write_ret == -1) {
542 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
546 return (ssize_t)total;
548 write_total += (size_t)write_ret;
551 total += (size_t)read_ret;
554 return (ssize_t)total;
557 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
559 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, read, write);
562 /*******************************************************************
563 sleep for a specified number of milliseconds
564 ********************************************************************/
568 struct timeval tval,t1,t2;
575 tval.tv_sec = (t-tdiff)/1000;
576 tval.tv_usec = 1000*((t-tdiff)%1000);
580 sys_select_intr(0,&fds,&tval);
583 tdiff = TvalDiff(&t1,&t2);
588 /****************************************************************************
589 become a daemon, discarding the controlling terminal
590 ****************************************************************************/
591 void become_daemon(void)
597 /* detach from the terminal */
600 #elif defined(TIOCNOTTY)
602 int i = sys_open("/dev/tty", O_RDWR, 0);
604 ioctl(i, (int) TIOCNOTTY, (char *)0);
608 #endif /* HAVE_SETSID */
610 /* Close fd's 0,1,2. Needed if started by rsh */
615 /****************************************************************************
616 put up a yes/no prompt
617 ****************************************************************************/
623 if (!fgets(ans,sizeof(ans)-1,stdin))
626 if (*ans == 'y' || *ans == 'Y')
632 /****************************************************************************
633 expand a pointer to be a particular size
634 ****************************************************************************/
635 void *Realloc(void *p,size_t size)
641 DEBUG(5,("Realloc asked for 0 bytes\n"));
646 ret = (void *)malloc(size);
648 ret = (void *)realloc(p,size);
651 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
657 /****************************************************************************
658 free memory, checks for NULL and set to NULL
659 use directly SAFE_FREE()
660 exist only because we need to pass a function pointer somewhere --SSS
661 ****************************************************************************/
662 void safe_free(void *p)
667 /****************************************************************************
668 get my own name and IP
669 ****************************************************************************/
670 BOOL get_myname(char *my_name)
676 /* get my host name */
677 if (gethostname(hostname, sizeof(hostname)) == -1) {
678 DEBUG(0,("gethostname failed\n"));
682 /* Ensure null termination. */
683 hostname[sizeof(hostname)-1] = '\0';
686 /* split off any parts after an initial . */
687 char *p = strchr_m(hostname,'.');
690 fstrcpy(my_name,hostname);
696 /****************************************************************************
697 interpret a protocol description string, with a default
698 ****************************************************************************/
699 int interpret_protocol(char *str,int def)
701 if (strequal(str,"NT1"))
702 return(PROTOCOL_NT1);
703 if (strequal(str,"LANMAN2"))
704 return(PROTOCOL_LANMAN2);
705 if (strequal(str,"LANMAN1"))
706 return(PROTOCOL_LANMAN1);
707 if (strequal(str,"CORE"))
708 return(PROTOCOL_CORE);
709 if (strequal(str,"COREPLUS"))
710 return(PROTOCOL_COREPLUS);
711 if (strequal(str,"CORE+"))
712 return(PROTOCOL_COREPLUS);
714 DEBUG(0,("Unrecognised protocol level %s\n",str));
719 /****************************************************************************
720 Return true if a string could be a pure IP address.
721 ****************************************************************************/
723 BOOL is_ipaddress(const char *str)
725 BOOL pure_address = True;
728 for (i=0; pure_address && str[i]; i++)
729 if (!(isdigit((int)str[i]) || str[i] == '.'))
730 pure_address = False;
732 /* Check that a pure number is not misinterpreted as an IP */
733 pure_address = pure_address && (strchr_m(str, '.') != NULL);
738 /****************************************************************************
739 interpret an internet address or name into an IP address in 4 byte form
740 ****************************************************************************/
742 uint32 interpret_addr(const char *str)
747 if (strcmp(str,"0.0.0.0") == 0) return(0);
748 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
750 /* if it's in the form of an IP address then get the lib to interpret it */
751 if (is_ipaddress(str)) {
752 res = inet_addr(str);
754 /* otherwise assume it's a network name of some sort and use
756 if ((hp = sys_gethostbyname(str)) == 0) {
757 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
760 if(hp->h_addr == NULL) {
761 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
764 putip((char *)&res,(char *)hp->h_addr);
767 if (res == (uint32)-1) return(0);
772 /*******************************************************************
773 a convenient addition to interpret_addr()
774 ******************************************************************/
775 struct in_addr *interpret_addr2(const char *str)
777 static struct in_addr ret;
778 uint32 a = interpret_addr(str);
783 /*******************************************************************
784 check if an IP is the 0.0.0.0
785 ******************************************************************/
786 BOOL zero_ip(struct in_addr ip)
789 putip((char *)&a,(char *)&ip);
794 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
795 /******************************************************************
796 Remove any mount options such as -rsize=2048,wsize=2048 etc.
797 Based on a fix from <Thomas.Hepper@icem.de>.
798 *******************************************************************/
800 static void strip_mount_options( pstring *str)
805 while(*p && !isspace(*p))
807 while(*p && isspace(*p))
813 pstrcpy(*str, tmp_str);
818 /*******************************************************************
819 Patch from jkf@soton.ac.uk
820 Split Luke's automount_server into YP lookup and string splitter
821 so can easily implement automount_path().
822 As we may end up doing both, cache the last YP result.
823 *******************************************************************/
825 #ifdef WITH_NISPLUS_HOME
826 char *automount_lookup(char *user_name)
828 static fstring last_key = "";
829 static pstring last_value = "";
831 char *nis_map = (char *)lp_nis_home_map_name();
833 char buffer[NIS_MAXATTRVAL + 1];
838 if (strcmp(user_name, last_key))
840 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
841 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
843 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL))
845 if (result->status != NIS_SUCCESS)
847 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
848 fstrcpy(last_key, ""); pstrcpy(last_value, "");
852 object = result->objects.objects_val;
853 if (object->zo_data.zo_type == ENTRY_OBJ)
855 entry = &object->zo_data.objdata_u.en_data;
856 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
857 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
859 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
860 pstring_sub(last_value, "&", user_name);
861 fstrcpy(last_key, user_name);
865 nis_freeresult(result);
868 strip_mount_options(&last_value);
870 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
873 #else /* WITH_NISPLUS_HOME */
874 char *automount_lookup(char *user_name)
876 static fstring last_key = "";
877 static pstring last_value = "";
879 int nis_error; /* returned by yp all functions */
880 char *nis_result; /* yp_match inits this */
881 int nis_result_len; /* and set this */
882 char *nis_domain; /* yp_get_default_domain inits this */
883 char *nis_map = (char *)lp_nis_home_map_name();
885 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
886 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
890 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
892 if (!strcmp(user_name, last_key)) {
893 nis_result = last_value;
894 nis_result_len = strlen(last_value);
899 if ((nis_error = yp_match(nis_domain, nis_map,
900 user_name, strlen(user_name),
901 &nis_result, &nis_result_len)) == 0) {
902 if (!nis_error && nis_result_len >= sizeof(pstring)) {
903 nis_result_len = sizeof(pstring)-1;
905 fstrcpy(last_key, user_name);
906 strncpy(last_value, nis_result, nis_result_len);
907 last_value[nis_result_len] = '\0';
908 strip_mount_options(&last_value);
910 } else if(nis_error == YPERR_KEY) {
912 /* If Key lookup fails user home server is not in nis_map
913 use default information for server, and home directory */
915 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
916 user_name, nis_map));
917 DEBUG(3, ("using defaults for server and home directory\n"));
919 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
920 yperr_string(nis_error), user_name, nis_map));
925 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
928 #endif /* WITH_NISPLUS_HOME */
932 /*******************************************************************
933 are two IPs on the same subnet?
934 ********************************************************************/
935 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
937 uint32 net1,net2,nmask;
939 nmask = ntohl(mask.s_addr);
940 net1 = ntohl(ip1.s_addr);
941 net2 = ntohl(ip2.s_addr);
943 return((net1 & nmask) == (net2 & nmask));
947 /****************************************************************************
948 check if a process exists. Does this work on all unixes?
949 ****************************************************************************/
951 BOOL process_exists(pid_t pid)
953 return(kill(pid,0) == 0 || errno != ESRCH);
957 /*******************************************************************
958 Convert a uid into a user name.
959 ********************************************************************/
961 char *uidtoname(uid_t uid)
966 if (winbind_uidtoname(name, uid))
969 pass = sys_getpwuid(uid);
970 if (pass) return(pass->pw_name);
971 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
976 /*******************************************************************
977 Convert a gid into a group name.
978 ********************************************************************/
980 char *gidtoname(gid_t gid)
985 if (winbind_gidtoname(name, gid))
989 if (grp) return(grp->gr_name);
990 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
994 /*******************************************************************
995 Convert a user name into a uid. If winbindd is present uses this.
996 ********************************************************************/
998 uid_t nametouid(char *name)
1000 struct passwd *pass;
1004 u = (uid_t)strtol(name, &p, 0);
1005 if ((p != name) && (*p == '\0'))
1008 if (winbind_nametouid(&u, name))
1011 pass = sys_getpwnam(name);
1013 return(pass->pw_uid);
1017 /*******************************************************************
1018 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1019 is present does a shortcut lookup...
1020 ********************************************************************/
1022 gid_t nametogid(char *name)
1028 g = (gid_t)strtol(name, &p, 0);
1029 if ((p != name) && (*p == '\0'))
1032 if (winbind_nametogid(&g, name))
1035 grp = getgrnam(name);
1037 return(grp->gr_gid);
1041 /*******************************************************************
1042 something really nasty happened - panic!
1043 ********************************************************************/
1044 void smb_panic(char *why)
1046 char *cmd = lp_panic_action();
1050 DEBUG(0,("PANIC: %s\n", why));
1056 /*******************************************************************
1057 a readdir wrapper which just returns the file name
1058 ********************************************************************/
1059 char *readdirname(DIR *p)
1061 SMB_STRUCT_DIRENT *ptr;
1064 if (!p) return(NULL);
1066 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1067 if (!ptr) return(NULL);
1069 dname = ptr->d_name;
1072 if (telldir(p) < 0) return(NULL);
1075 #ifdef HAVE_BROKEN_READDIR
1076 /* using /usr/ucb/cc is BAD */
1082 int len = NAMLEN(ptr);
1083 memcpy(buf, dname, len);
1091 /*******************************************************************
1092 Utility function used to decide if the last component
1093 of a path matches a (possibly wildcarded) entry in a namelist.
1094 ********************************************************************/
1096 BOOL is_in_path(char *name, name_compare_entry *namelist)
1098 pstring last_component;
1101 DEBUG(8, ("is_in_path: %s\n", name));
1103 /* if we have no list it's obviously not in the path */
1104 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1106 DEBUG(8,("is_in_path: no name list.\n"));
1110 /* Get the last component of the unix name. */
1111 p = strrchr_m(name, '/');
1112 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1113 last_component[sizeof(last_component)-1] = '\0';
1115 for(; namelist->name != NULL; namelist++)
1117 if(namelist->is_wild)
1119 if (mask_match(last_component, namelist->name, case_sensitive))
1121 DEBUG(8,("is_in_path: mask match succeeded\n"));
1127 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1128 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1130 DEBUG(8,("is_in_path: match succeeded\n"));
1135 DEBUG(8,("is_in_path: match not found\n"));
1140 /*******************************************************************
1141 Strip a '/' separated list into an array of
1142 name_compare_enties structures suitable for
1143 passing to is_in_path(). We do this for
1144 speed so we can pre-parse all the names in the list
1145 and don't do it for each call to is_in_path().
1146 namelist is modified here and is assumed to be
1147 a copy owned by the caller.
1148 We also check if the entry contains a wildcard to
1149 remove a potentially expensive call to mask_match
1151 ********************************************************************/
1153 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1156 char *nameptr = namelist;
1157 int num_entries = 0;
1160 (*ppname_array) = NULL;
1162 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1165 /* We need to make two passes over the string. The
1166 first to count the number of elements, the second
1171 if ( *nameptr == '/' )
1173 /* cope with multiple (useless) /s) */
1177 /* find the next / */
1178 name_end = strchr_m(nameptr, '/');
1180 /* oops - the last check for a / didn't find one. */
1181 if (name_end == NULL)
1184 /* next segment please */
1185 nameptr = name_end + 1;
1189 if(num_entries == 0)
1192 if(( (*ppname_array) = (name_compare_entry *)malloc(
1193 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1195 DEBUG(0,("set_namearray: malloc fail\n"));
1199 /* Now copy out the names */
1204 if ( *nameptr == '/' )
1206 /* cope with multiple (useless) /s) */
1210 /* find the next / */
1211 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1216 /* oops - the last check for a / didn't find one. */
1217 if(name_end == NULL)
1220 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1221 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1223 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1227 /* next segment please */
1228 nameptr = name_end + 1;
1232 (*ppname_array)[i].name = NULL;
1237 /****************************************************************************
1238 routine to free a namearray.
1239 ****************************************************************************/
1241 void free_namearray(name_compare_entry *name_array)
1243 if(name_array == NULL)
1246 SAFE_FREE(name_array->name);
1247 SAFE_FREE(name_array);
1250 /****************************************************************************
1251 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1252 is dealt with in posix.c
1253 ****************************************************************************/
1255 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1257 SMB_STRUCT_FLOCK lock;
1260 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1263 lock.l_whence = SEEK_SET;
1264 lock.l_start = offset;
1270 ret = fcntl(fd,op,&lock);
1273 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1276 if (op == SMB_F_GETLK)
1279 (lock.l_type != F_UNLCK) &&
1280 (lock.l_pid != 0) &&
1281 (lock.l_pid != sys_getpid()))
1283 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1287 /* it must be not locked or locked by me */
1291 /* a lock set or unset */
1294 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1295 (double)offset,(double)count,op,type,strerror(errno)));
1299 /* everything went OK */
1300 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1305 /*******************************************************************
1306 is the name specified one of my netbios names
1307 returns true is it is equal, false otherwise
1308 ********************************************************************/
1309 BOOL is_myname(char *s)
1314 for (n=0; my_netbios_names[n]; n++) {
1315 if (strequal(my_netbios_names[n], s))
1318 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1322 /*******************************************************************
1323 set the horrid remote_arch string based on an enum.
1324 ********************************************************************/
1325 void set_remote_arch(enum remote_arch_types type)
1327 extern fstring remote_arch;
1332 fstrcpy(remote_arch, "WfWg");
1335 fstrcpy(remote_arch, "OS2");
1338 fstrcpy(remote_arch, "Win95");
1341 fstrcpy(remote_arch, "WinNT");
1344 fstrcpy(remote_arch, "Win2K");
1347 fstrcpy(remote_arch,"Samba");
1350 ra_type = RA_UNKNOWN;
1351 fstrcpy(remote_arch, "UNKNOWN");
1356 /*******************************************************************
1357 Get the remote_arch type.
1358 ********************************************************************/
1359 enum remote_arch_types get_remote_arch(void)
1365 void out_ascii(FILE *f, unsigned char *buf,int len)
1370 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1374 void out_data(FILE *f,char *buf1,int len, int per_line)
1376 unsigned char *buf = (unsigned char *)buf1;
1383 fprintf(f, "[%03X] ",i);
1386 fprintf(f, "%02X ",(int)buf[i]);
1388 if (i%(per_line/2) == 0) fprintf(f, " ");
1389 if (i%per_line == 0)
1391 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1392 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1393 if (i<len) fprintf(f, "[%03X] ",i);
1396 if ((i%per_line) != 0)
1400 n = per_line - (i%per_line);
1402 if (n>(per_line/2)) fprintf(f, " ");
1407 n = MIN(per_line/2,i%per_line);
1408 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1409 n = (i%per_line) - n;
1410 if (n>0) out_ascii(f,&buf[i-n],n);
1415 void print_asc(int level, const unsigned char *buf,int len)
1419 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1422 void dump_data(int level, const char *buf1,int len)
1424 const unsigned char *buf = (const unsigned char *)buf1;
1428 DEBUG(level,("[%03X] ",i));
1430 DEBUG(level,("%02X ",(int)buf[i]));
1432 if (i%8 == 0) DEBUG(level,(" "));
1434 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1435 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1436 if (i<len) DEBUG(level,("[%03X] ",i));
1444 if (n>8) DEBUG(level,(" "));
1445 while (n--) DEBUG(level,(" "));
1448 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1450 if (n>0) print_asc(level,&buf[i-n],n);
1451 DEBUG(level,("\n"));
1455 char *tab_depth(int depth)
1457 static pstring spaces;
1458 memset(spaces, ' ', depth * 4);
1459 spaces[depth * 4] = 0;
1463 /*****************************************************************************
1464 * Provide a checksum on a string
1466 * Input: s - the null-terminated character string for which the checksum
1467 * will be calculated.
1469 * Output: The checksum value calculated for s.
1471 * ****************************************************************************
1473 int str_checksum(const char *s)
1481 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1486 } /* str_checksum */
1490 /*****************************************************************
1491 zero a memory area then free it. Used to catch bugs faster
1492 *****************************************************************/
1493 void zero_free(void *p, size_t size)
1500 /*****************************************************************
1501 set our open file limit to a requested max and return the limit
1502 *****************************************************************/
1503 int set_maxfiles(int requested_max)
1505 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1507 int saved_current_limit;
1509 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1510 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1513 return requested_max;
1517 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1518 * account for the extra fd we need
1519 * as well as the log files and standard
1520 * handles etc. Save the limit we want to set in case
1521 * we are running on an OS that doesn't support this limit (AIX)
1522 * which always returns RLIM_INFINITY for rlp.rlim_max.
1525 /* Try raising the hard (max) limit to the requested amount. */
1527 #if defined(RLIM_INFINITY)
1528 if (rlp.rlim_max != RLIM_INFINITY) {
1529 int orig_max = rlp.rlim_max;
1531 if ( rlp.rlim_max < requested_max )
1532 rlp.rlim_max = requested_max;
1534 /* This failing is not an error - many systems (Linux) don't
1535 support our default request of 10,000 open files. JRA. */
1537 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1538 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1539 (int)rlp.rlim_max, strerror(errno) ));
1541 /* Set failed - restore original value from get. */
1542 rlp.rlim_max = orig_max;
1547 /* Now try setting the soft (current) limit. */
1549 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1551 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1552 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1553 (int)rlp.rlim_cur, strerror(errno) ));
1555 return saved_current_limit;
1558 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1559 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1562 return saved_current_limit;
1565 #if defined(RLIM_INFINITY)
1566 if(rlp.rlim_cur == RLIM_INFINITY)
1567 return saved_current_limit;
1570 if((int)rlp.rlim_cur > saved_current_limit)
1571 return saved_current_limit;
1573 return rlp.rlim_cur;
1574 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1576 * No way to know - just guess...
1578 return requested_max;
1582 /*****************************************************************
1583 splits out the start of the key (HKLM or HKU) and the rest of the key
1584 *****************************************************************/
1585 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1589 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1596 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1598 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1600 (*reg_type) = HKEY_LOCAL_MACHINE;
1602 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1604 (*reg_type) = HKEY_USERS;
1608 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1612 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
1614 fstrcpy(key_name, tmp);
1621 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1627 /*****************************************************************
1628 possibly replace mkstemp if it is broken
1629 *****************************************************************/
1630 int smb_mkstemp(char *template)
1632 #if HAVE_SECURE_MKSTEMP
1633 return mkstemp(template);
1635 /* have a reasonable go at emulating it. Hope that
1636 the system mktemp() isn't completly hopeless */
1637 char *p = mktemp(template);
1639 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
1643 /*****************************************************************
1644 like strdup but for memory
1645 *****************************************************************/
1646 void *memdup(void *p, size_t size)
1649 if (size == 0) return NULL;
1651 if (!p2) return NULL;
1652 memcpy(p2, p, size);
1656 /*****************************************************************
1657 get local hostname and cache result
1658 *****************************************************************/
1659 char *myhostname(void)
1669 /*****************************************************************
1670 a useful function for returning a path in the Samba lock directory
1671 *****************************************************************/
1672 char *lock_path(char *name)
1674 static pstring fname;
1676 pstrcpy(fname,lp_lockdir());
1677 trim_string(fname,"","/");
1679 if (!directory_exist(fname,NULL)) {
1684 pstrcat(fname,name);
1689 /*******************************************************************
1690 Given a filename - get its directory name
1691 NB: Returned in static storage. Caveats:
1692 o Not safe in thread environment.
1693 o Caller must not free.
1694 o If caller wishes to preserve, they should copy.
1695 ********************************************************************/
1697 char *parent_dirname(const char *path)
1699 static pstring dirpath;
1705 pstrcpy(dirpath, path);
1706 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
1708 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1711 ++p; /* For root "/", leave "/" in place */
1718 /*******************************************************************
1719 determine if a pattern contains any Microsoft wildcard characters
1720 *******************************************************************/
1721 BOOL ms_has_wild(char *s)
1724 while ((c = *s++)) {
1737 /*******************************************************************
1738 a wrapper that handles case sensitivity and the special handling
1740 *******************************************************************/
1741 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1745 if (strcmp(string,"..") == 0) string = ".";
1746 if (strcmp(pattern,".") == 0) return False;
1748 if (is_case_sensitive) {
1749 return ms_fnmatch(pattern, string, Protocol) == 0;
1752 fstrcpy(p2, pattern);
1753 fstrcpy(s2, string);
1756 return ms_fnmatch(p2, s2, Protocol) == 0;
1759 /*******************************************************************
1760 Simple case insensitive interface to ms_fnmatch.
1761 *******************************************************************/
1763 BOOL wild_match(char *string, char *pattern)
1767 pstrcpy(p2, pattern);
1768 pstrcpy(s2, string);
1771 return ms_fnmatch(p2, s2, Protocol) == 0;
1776 /*******************************************************************
1777 This routine is a trick to immediately catch errors when debugging
1778 with insure. A xterm with a gdb is popped up when insure catches
1779 a error. It is Linux specific.
1780 ********************************************************************/
1781 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
1786 pstring cmd = "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'";
1788 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
1789 pstring_sub(cmd, "%d", pidstr);
1793 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
1794 fn = dlsym(h, "_Insure_trap_error");
1797 ret = fn(a1, a2, a3, a4, a5, a6);