2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
6 Copyright (C) Jeremy Allison 2001
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
26 #ifdef WITH_NISPLUS_HOME
27 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
29 * The following lines are needed due to buggy include files
30 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
31 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
32 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
33 * an enum in /usr/include/rpcsvc/nis.h.
40 #if defined(GROUP_OBJ)
44 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
46 #include <rpcsvc/nis.h>
48 #else /* !WITH_NISPLUS_HOME */
50 #include "rpcsvc/ypclnt.h"
52 #endif /* WITH_NISPLUS_HOME */
53 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
56 #include <openssl/ssl.h>
57 #undef Realloc /* SSLeay defines this and samba has a function of this name */
62 int Protocol = PROTOCOL_COREPLUS;
64 /* a default finfo structure to ensure all fields are sensible */
65 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
67 /* this is used by the chaining code */
73 case handling on filenames
75 int case_default = CASE_LOWER;
77 /* the following control case operations - they are put here so the
78 client can link easily */
81 BOOL use_mangled_map = False;
82 BOOL short_case_preserve;
85 static enum remote_arch_types ra_type = RA_UNKNOWN;
86 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
88 pstring global_myname = "";
89 fstring global_myworkgroup = "";
90 char **my_netbios_names;
93 /****************************************************************************
94 find a suitable temporary directory. The result should be copied immediately
95 as it may be overwritten by a subsequent call
96 ****************************************************************************/
100 if ((p = getenv("TMPDIR"))) {
106 /****************************************************************************
107 determine whether we are in the specified group
108 ****************************************************************************/
110 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups)
114 if (group == current_gid) return(True);
116 for (i=0;i<ngroups;i++)
117 if (group == groups[i])
124 /****************************************************************************
125 like atoi but gets the value up to the separater character
126 ****************************************************************************/
127 char *Atoic(char *p, int *n, char *c)
129 if (!isdigit((int)*p))
131 DEBUG(5, ("Atoic: malformed number\n"));
137 while ((*p) && isdigit((int)*p))
142 if (strchr_m(c, *p) == NULL)
144 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
151 /*************************************************************************
152 reads a list of numbers
153 *************************************************************************/
154 char *get_numlist(char *p, uint32 **num, int *count)
158 if (num == NULL || count == NULL)
166 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':')
170 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
177 (*num)[(*count)] = val;
186 /*******************************************************************
187 check if a file exists - call vfs_file_exist for samba files
188 ********************************************************************/
189 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
192 if (!sbuf) sbuf = &st;
194 if (sys_stat(fname,sbuf) != 0)
197 return(S_ISREG(sbuf->st_mode));
200 /*******************************************************************
201 check a files mod time
202 ********************************************************************/
203 time_t file_modtime(char *fname)
207 if (sys_stat(fname,&st) != 0)
213 /*******************************************************************
214 check if a directory exists
215 ********************************************************************/
216 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
223 if (sys_stat(dname,st) != 0)
226 ret = S_ISDIR(st->st_mode);
232 /*******************************************************************
233 returns the size in bytes of the named file
234 ********************************************************************/
235 SMB_OFF_T get_file_size(char *file_name)
239 if(sys_stat(file_name,&buf) != 0)
240 return (SMB_OFF_T)-1;
244 /*******************************************************************
245 return a string representing an attribute for a file
246 ********************************************************************/
247 char *attrib_string(uint16 mode)
249 static fstring attrstr;
253 if (mode & aVOLID) fstrcat(attrstr,"V");
254 if (mode & aDIR) fstrcat(attrstr,"D");
255 if (mode & aARCH) fstrcat(attrstr,"A");
256 if (mode & aHIDDEN) fstrcat(attrstr,"H");
257 if (mode & aSYSTEM) fstrcat(attrstr,"S");
258 if (mode & aRONLY) fstrcat(attrstr,"R");
263 /*******************************************************************
264 show a smb message structure
265 ********************************************************************/
266 void show_msg(char *buf)
271 if (DEBUGLEVEL < 5) return;
273 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
275 (int)CVAL(buf,smb_com),
276 (int)CVAL(buf,smb_rcls),
277 (int)CVAL(buf,smb_reh),
278 (int)SVAL(buf,smb_err),
279 (int)CVAL(buf,smb_flg),
280 (int)SVAL(buf,smb_flg2)));
281 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
282 (int)SVAL(buf,smb_tid),
283 (int)SVAL(buf,smb_pid),
284 (int)SVAL(buf,smb_uid),
285 (int)SVAL(buf,smb_mid),
286 (int)CVAL(buf,smb_wct)));
288 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
290 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
291 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
294 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
296 DEBUG(5,("smb_bcc=%d\n",bcc));
298 if (DEBUGLEVEL < 10) return;
305 dump_data(10, smb_buf(buf), bcc);
308 /*******************************************************************
309 set the length and marker of an smb packet
310 ********************************************************************/
311 void smb_setlen(char *buf,int len)
313 _smb_setlen(buf,len);
321 /*******************************************************************
322 setup the word count and byte count for a smb message
323 ********************************************************************/
324 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
327 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
328 CVAL(buf,smb_wct) = num_words;
329 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
330 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
331 return (smb_size + num_words*2 + num_bytes);
334 /*******************************************************************
335 setup only the byte count for a smb message
336 ********************************************************************/
337 int set_message_bcc(char *buf,int num_bytes)
339 int num_words = CVAL(buf,smb_wct);
340 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
341 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
342 return (smb_size + num_words*2 + num_bytes);
345 /*******************************************************************
346 setup only the byte count for a smb message, using the end of the
348 ********************************************************************/
349 int set_message_end(void *outbuf,void *end_ptr)
351 return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
354 /*******************************************************************
355 reduce a file name, removing .. elements.
356 ********************************************************************/
357 void dos_clean_name(char *s)
361 DEBUG(3,("dos_clean_name [%s]\n",s));
363 /* remove any double slashes */
364 all_string_sub(s, "\\\\", "\\", 0);
366 while ((p = strstr(s,"\\..\\")) != NULL)
373 if ((p=strrchr_m(s,'\\')) != NULL)
380 trim_string(s,NULL,"\\..");
382 all_string_sub(s, "\\.\\", "\\", 0);
385 /*******************************************************************
386 reduce a file name, removing .. elements.
387 ********************************************************************/
388 void unix_clean_name(char *s)
392 DEBUG(3,("unix_clean_name [%s]\n",s));
394 /* remove any double slashes */
395 all_string_sub(s, "//","/", 0);
397 /* Remove leading ./ characters */
398 if(strncmp(s, "./", 2) == 0) {
399 trim_string(s, "./", NULL);
404 while ((p = strstr(s,"/../")) != NULL)
411 if ((p=strrchr_m(s,'/')) != NULL)
418 trim_string(s,NULL,"/..");
421 /*******************************************************************
423 reduce a file name, removing or reducing /../ , /./ , // elements.
424 remove also any trailing . and /
425 return a new allocated string.
426 ********************************************************************/
427 smb_ucs2_t *unix_clean_path(const smb_ucs2_t *s)
430 smb_ucs2_t *p, *r, *t;
432 DEBUG(3, ("unix_clean_name_w\n")); /* [%unicode]\n")); */
434 /* convert '\' to '/' */
436 if (!ns) return NULL;
439 /* remove all double slashes */
441 ns = all_string_sub_wa(p, "//", "/");
443 if (!ns) return NULL;
447 ns = all_string_sub_wa(p, "/./", "/");
449 if (!ns) return NULL;
451 /* reduce any /../ */
453 while ((r = strstr_wa(t, "/..")) != NULL) {
455 if (*t == UCS2_CHAR('/') || *t == 0) {
457 p = strrchr_w(ns, UCS2_CHAR('/'));
459 memmove(p, t, (strlen_w(t) + 1) * sizeof(smb_ucs2_t));
464 /* remove any trailing /. */
465 trim_string_wa(ns, NULL, "/.");
467 /* remove any leading and trailing / */
468 trim_string_wa(ns, "/", "/");
473 /****************************************************************************
475 ****************************************************************************/
476 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
483 if ((mode & aDIR) != 0)
486 memset(buf+1,' ',11);
487 if ((p = strchr_m(mask2,'.')) != NULL)
490 push_ascii(buf+1,mask2,8, 0);
491 push_ascii(buf+9,p+1,3, 0);
495 push_ascii(buf+1,mask2,11, 0);
497 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
499 put_dos_date(buf,22,date);
500 SSVAL(buf,26,size & 0xFFFF);
501 SSVAL(buf,28,(size >> 16)&0xFFFF);
502 push_ascii(buf+30,fname,12, 0);
505 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
509 /*******************************************************************
510 close the low 3 fd's and open dev/null in their place
511 ********************************************************************/
512 void close_low_fds(void)
520 /* try and use up these file descriptors, so silly
521 library routines writing to stdout etc won't cause havoc */
523 fd = sys_open("/dev/null",O_RDWR,0);
524 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
526 DEBUG(0,("Can't open /dev/null\n"));
530 DEBUG(0,("Didn't get file descriptor %d\n",i));
536 /****************************************************************************
537 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
541 ****************************************************************************/
542 int set_blocking(int fd, BOOL set)
546 #define FLAG_TO_SET O_NONBLOCK
549 #define FLAG_TO_SET O_NDELAY
551 #define FLAG_TO_SET FNDELAY
555 if((val = fcntl(fd, F_GETFL, 0)) == -1)
557 if(set) /* Turn blocking on - ie. clear nonblock flag */
561 return fcntl( fd, F_SETFL, val);
565 /****************************************************************************
566 Transfer some data between two fd's.
567 ****************************************************************************/
569 ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
570 ssize_t (*write_fn)(int, const void *, size_t))
572 static char buf[16384];
575 size_t write_total = 0;
579 size_t num_to_read_thistime = MIN((n - total), sizeof(buf));
581 read_ret = (*read_fn)(infd, buf + total, num_to_read_thistime);
582 if (read_ret == -1) {
583 DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
591 while (write_total < read_ret) {
592 write_ret = (*write_fn)(outfd,buf + total, read_ret);
594 if (write_ret == -1) {
595 DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
599 return (ssize_t)total;
601 write_total += (size_t)write_ret;
604 total += (size_t)read_ret;
607 return (ssize_t)total;
610 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
612 return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, read, write);
615 /*******************************************************************
616 sleep for a specified number of milliseconds
617 ********************************************************************/
621 struct timeval tval,t1,t2;
628 tval.tv_sec = (t-tdiff)/1000;
629 tval.tv_usec = 1000*((t-tdiff)%1000);
633 sys_select_intr(0,&fds,&tval);
636 tdiff = TvalDiff(&t1,&t2);
641 /****************************************************************************
642 become a daemon, discarding the controlling terminal
643 ****************************************************************************/
644 void become_daemon(void)
650 /* detach from the terminal */
653 #elif defined(TIOCNOTTY)
655 int i = sys_open("/dev/tty", O_RDWR, 0);
657 ioctl(i, (int) TIOCNOTTY, (char *)0);
661 #endif /* HAVE_SETSID */
663 /* Close fd's 0,1,2. Needed if started by rsh */
668 /****************************************************************************
669 put up a yes/no prompt
670 ****************************************************************************/
676 if (!fgets(ans,sizeof(ans)-1,stdin))
679 if (*ans == 'y' || *ans == 'Y')
685 /****************************************************************************
686 expand a pointer to be a particular size
687 ****************************************************************************/
688 void *Realloc(void *p,size_t size)
694 DEBUG(5,("Realloc asked for 0 bytes\n"));
699 ret = (void *)malloc(size);
701 ret = (void *)realloc(p,size);
704 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
710 /****************************************************************************
711 free memory, checks for NULL and set to NULL
712 use directly SAFE_FREE()
713 exist only because we need to pass a function pointer somewhere --SSS
714 ****************************************************************************/
715 void safe_free(void *p)
720 /****************************************************************************
721 get my own name and IP
722 ****************************************************************************/
723 BOOL get_myname(char *my_name)
729 /* get my host name */
730 if (gethostname(hostname, sizeof(hostname)) == -1) {
731 DEBUG(0,("gethostname failed\n"));
735 /* Ensure null termination. */
736 hostname[sizeof(hostname)-1] = '\0';
739 /* split off any parts after an initial . */
740 char *p = strchr_m(hostname,'.');
743 fstrcpy(my_name,hostname);
749 /****************************************************************************
750 interpret a protocol description string, with a default
751 ****************************************************************************/
752 int interpret_protocol(char *str,int def)
754 if (strequal(str,"NT1"))
755 return(PROTOCOL_NT1);
756 if (strequal(str,"LANMAN2"))
757 return(PROTOCOL_LANMAN2);
758 if (strequal(str,"LANMAN1"))
759 return(PROTOCOL_LANMAN1);
760 if (strequal(str,"CORE"))
761 return(PROTOCOL_CORE);
762 if (strequal(str,"COREPLUS"))
763 return(PROTOCOL_COREPLUS);
764 if (strequal(str,"CORE+"))
765 return(PROTOCOL_COREPLUS);
767 DEBUG(0,("Unrecognised protocol level %s\n",str));
772 /****************************************************************************
773 Return true if a string could be a pure IP address.
774 ****************************************************************************/
776 BOOL is_ipaddress(const char *str)
778 BOOL pure_address = True;
781 for (i=0; pure_address && str[i]; i++)
782 if (!(isdigit((int)str[i]) || str[i] == '.'))
783 pure_address = False;
785 /* Check that a pure number is not misinterpreted as an IP */
786 pure_address = pure_address && (strchr_m(str, '.') != NULL);
791 /****************************************************************************
792 interpret an internet address or name into an IP address in 4 byte form
793 ****************************************************************************/
795 uint32 interpret_addr(const char *str)
800 if (strcmp(str,"0.0.0.0") == 0) return(0);
801 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
803 /* if it's in the form of an IP address then get the lib to interpret it */
804 if (is_ipaddress(str)) {
805 res = inet_addr(str);
807 /* otherwise assume it's a network name of some sort and use
809 if ((hp = sys_gethostbyname(str)) == 0) {
810 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
813 if(hp->h_addr == NULL) {
814 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
817 putip((char *)&res,(char *)hp->h_addr);
820 if (res == (uint32)-1) return(0);
825 /*******************************************************************
826 a convenient addition to interpret_addr()
827 ******************************************************************/
828 struct in_addr *interpret_addr2(const char *str)
830 static struct in_addr ret;
831 uint32 a = interpret_addr(str);
836 /*******************************************************************
837 check if an IP is the 0.0.0.0
838 ******************************************************************/
839 BOOL zero_ip(struct in_addr ip)
842 putip((char *)&a,(char *)&ip);
847 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
848 /******************************************************************
849 Remove any mount options such as -rsize=2048,wsize=2048 etc.
850 Based on a fix from <Thomas.Hepper@icem.de>.
851 *******************************************************************/
853 static void strip_mount_options( pstring *str)
858 while(*p && !isspace(*p))
860 while(*p && isspace(*p))
866 pstrcpy(*str, tmp_str);
871 /*******************************************************************
872 Patch from jkf@soton.ac.uk
873 Split Luke's automount_server into YP lookup and string splitter
874 so can easily implement automount_path().
875 As we may end up doing both, cache the last YP result.
876 *******************************************************************/
878 #ifdef WITH_NISPLUS_HOME
879 char *automount_lookup(const char *user_name)
881 static fstring last_key = "";
882 static pstring last_value = "";
884 char *nis_map = (char *)lp_nis_home_map_name();
886 char buffer[NIS_MAXATTRVAL + 1];
891 if (strcmp(user_name, last_key))
893 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
894 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
896 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL))
898 if (result->status != NIS_SUCCESS)
900 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
901 fstrcpy(last_key, ""); pstrcpy(last_value, "");
905 object = result->objects.objects_val;
906 if (object->zo_data.zo_type == ENTRY_OBJ)
908 entry = &object->zo_data.objdata_u.en_data;
909 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
910 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
912 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
913 pstring_sub(last_value, "&", user_name);
914 fstrcpy(last_key, user_name);
918 nis_freeresult(result);
921 strip_mount_options(&last_value);
923 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
926 #else /* WITH_NISPLUS_HOME */
927 char *automount_lookup(const char *user_name)
929 static fstring last_key = "";
930 static pstring last_value = "";
932 int nis_error; /* returned by yp all functions */
933 char *nis_result; /* yp_match inits this */
934 int nis_result_len; /* and set this */
935 char *nis_domain; /* yp_get_default_domain inits this */
936 char *nis_map = (char *)lp_nis_home_map_name();
938 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
939 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
943 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
945 if (!strcmp(user_name, last_key)) {
946 nis_result = last_value;
947 nis_result_len = strlen(last_value);
952 if ((nis_error = yp_match(nis_domain, nis_map,
953 user_name, strlen(user_name),
954 &nis_result, &nis_result_len)) == 0) {
955 if (!nis_error && nis_result_len >= sizeof(pstring)) {
956 nis_result_len = sizeof(pstring)-1;
958 fstrcpy(last_key, user_name);
959 strncpy(last_value, nis_result, nis_result_len);
960 last_value[nis_result_len] = '\0';
961 strip_mount_options(&last_value);
963 } else if(nis_error == YPERR_KEY) {
965 /* If Key lookup fails user home server is not in nis_map
966 use default information for server, and home directory */
968 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
969 user_name, nis_map));
970 DEBUG(3, ("using defaults for server and home directory\n"));
972 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
973 yperr_string(nis_error), user_name, nis_map));
978 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
981 #endif /* WITH_NISPLUS_HOME */
985 /*******************************************************************
986 are two IPs on the same subnet?
987 ********************************************************************/
988 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
990 uint32 net1,net2,nmask;
992 nmask = ntohl(mask.s_addr);
993 net1 = ntohl(ip1.s_addr);
994 net2 = ntohl(ip2.s_addr);
996 return((net1 & nmask) == (net2 & nmask));
1000 /****************************************************************************
1001 check if a process exists. Does this work on all unixes?
1002 ****************************************************************************/
1004 BOOL process_exists(pid_t pid)
1006 return(kill(pid,0) == 0 || errno != ESRCH);
1010 /*******************************************************************
1011 Convert a uid into a user name.
1012 ********************************************************************/
1014 char *uidtoname(uid_t uid)
1016 static fstring name;
1017 struct passwd *pass;
1019 if (winbind_uidtoname(name, uid))
1022 pass = sys_getpwuid(uid);
1023 if (pass) return(pass->pw_name);
1024 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
1029 /*******************************************************************
1030 Convert a gid into a group name.
1031 ********************************************************************/
1033 char *gidtoname(gid_t gid)
1035 static fstring name;
1038 if (winbind_gidtoname(name, gid))
1041 grp = getgrgid(gid);
1042 if (grp) return(grp->gr_name);
1043 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1047 /*******************************************************************
1048 Convert a user name into a uid. If winbindd is present uses this.
1049 ********************************************************************/
1051 uid_t nametouid(char *name)
1053 struct passwd *pass;
1057 u = (uid_t)strtol(name, &p, 0);
1058 if ((p != name) && (*p == '\0'))
1061 if (winbind_nametouid(&u, name))
1064 pass = sys_getpwnam(name);
1066 return(pass->pw_uid);
1070 /*******************************************************************
1071 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1072 is present does a shortcut lookup...
1073 ********************************************************************/
1075 gid_t nametogid(const char *name)
1081 g = (gid_t)strtol(name, &p, 0);
1082 if ((p != name) && (*p == '\0'))
1085 if (winbind_nametogid(&g, name))
1088 grp = getgrnam(name);
1090 return(grp->gr_gid);
1094 /*******************************************************************
1095 something really nasty happened - panic!
1096 ********************************************************************/
1097 void smb_panic(char *why)
1099 char *cmd = lp_panic_action();
1103 DEBUG(0,("PANIC: %s\n", why));
1109 /*******************************************************************
1110 a readdir wrapper which just returns the file name
1111 ********************************************************************/
1112 char *readdirname(DIR *p)
1114 SMB_STRUCT_DIRENT *ptr;
1117 if (!p) return(NULL);
1119 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1120 if (!ptr) return(NULL);
1122 dname = ptr->d_name;
1125 if (telldir(p) < 0) return(NULL);
1128 #ifdef HAVE_BROKEN_READDIR
1129 /* using /usr/ucb/cc is BAD */
1135 int len = NAMLEN(ptr);
1136 memcpy(buf, dname, len);
1144 /*******************************************************************
1145 Utility function used to decide if the last component
1146 of a path matches a (possibly wildcarded) entry in a namelist.
1147 ********************************************************************/
1149 BOOL is_in_path(char *name, name_compare_entry *namelist)
1151 pstring last_component;
1154 DEBUG(8, ("is_in_path: %s\n", name));
1156 /* if we have no list it's obviously not in the path */
1157 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1159 DEBUG(8,("is_in_path: no name list.\n"));
1163 /* Get the last component of the unix name. */
1164 p = strrchr_m(name, '/');
1165 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1166 last_component[sizeof(last_component)-1] = '\0';
1168 for(; namelist->name != NULL; namelist++)
1170 if(namelist->is_wild)
1172 if (mask_match(last_component, namelist->name, case_sensitive))
1174 DEBUG(8,("is_in_path: mask match succeeded\n"));
1180 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1181 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1183 DEBUG(8,("is_in_path: match succeeded\n"));
1188 DEBUG(8,("is_in_path: match not found\n"));
1193 /*******************************************************************
1194 Strip a '/' separated list into an array of
1195 name_compare_enties structures suitable for
1196 passing to is_in_path(). We do this for
1197 speed so we can pre-parse all the names in the list
1198 and don't do it for each call to is_in_path().
1199 namelist is modified here and is assumed to be
1200 a copy owned by the caller.
1201 We also check if the entry contains a wildcard to
1202 remove a potentially expensive call to mask_match
1204 ********************************************************************/
1206 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1209 char *nameptr = namelist;
1210 int num_entries = 0;
1213 (*ppname_array) = NULL;
1215 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1218 /* We need to make two passes over the string. The
1219 first to count the number of elements, the second
1224 if ( *nameptr == '/' )
1226 /* cope with multiple (useless) /s) */
1230 /* find the next / */
1231 name_end = strchr_m(nameptr, '/');
1233 /* oops - the last check for a / didn't find one. */
1234 if (name_end == NULL)
1237 /* next segment please */
1238 nameptr = name_end + 1;
1242 if(num_entries == 0)
1245 if(( (*ppname_array) = (name_compare_entry *)malloc(
1246 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1248 DEBUG(0,("set_namearray: malloc fail\n"));
1252 /* Now copy out the names */
1257 if ( *nameptr == '/' )
1259 /* cope with multiple (useless) /s) */
1263 /* find the next / */
1264 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1269 /* oops - the last check for a / didn't find one. */
1270 if(name_end == NULL)
1273 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1274 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1276 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1280 /* next segment please */
1281 nameptr = name_end + 1;
1285 (*ppname_array)[i].name = NULL;
1290 /****************************************************************************
1291 routine to free a namearray.
1292 ****************************************************************************/
1294 void free_namearray(name_compare_entry *name_array)
1296 if(name_array == NULL)
1299 SAFE_FREE(name_array->name);
1300 SAFE_FREE(name_array);
1303 /****************************************************************************
1304 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1305 is dealt with in posix.c
1306 ****************************************************************************/
1308 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1310 SMB_STRUCT_FLOCK lock;
1313 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1316 lock.l_whence = SEEK_SET;
1317 lock.l_start = offset;
1323 ret = fcntl(fd,op,&lock);
1326 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1329 if (op == SMB_F_GETLK)
1332 (lock.l_type != F_UNLCK) &&
1333 (lock.l_pid != 0) &&
1334 (lock.l_pid != sys_getpid()))
1336 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1340 /* it must be not locked or locked by me */
1344 /* a lock set or unset */
1347 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1348 (double)offset,(double)count,op,type,strerror(errno)));
1352 /* everything went OK */
1353 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1358 /*******************************************************************
1359 is the name specified one of my netbios names
1360 returns true is it is equal, false otherwise
1361 ********************************************************************/
1362 BOOL is_myname(char *s)
1367 for (n=0; my_netbios_names[n]; n++) {
1368 if (strequal(my_netbios_names[n], s))
1371 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1375 /*******************************************************************
1376 set the horrid remote_arch string based on an enum.
1377 ********************************************************************/
1378 void set_remote_arch(enum remote_arch_types type)
1380 extern fstring remote_arch;
1385 fstrcpy(remote_arch, "WfWg");
1388 fstrcpy(remote_arch, "OS2");
1391 fstrcpy(remote_arch, "Win95");
1394 fstrcpy(remote_arch, "WinNT");
1397 fstrcpy(remote_arch, "Win2K");
1400 fstrcpy(remote_arch,"Samba");
1403 ra_type = RA_UNKNOWN;
1404 fstrcpy(remote_arch, "UNKNOWN");
1409 /*******************************************************************
1410 Get the remote_arch type.
1411 ********************************************************************/
1412 enum remote_arch_types get_remote_arch(void)
1418 void out_ascii(FILE *f, unsigned char *buf,int len)
1423 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1427 void out_data(FILE *f,char *buf1,int len, int per_line)
1429 unsigned char *buf = (unsigned char *)buf1;
1436 fprintf(f, "[%03X] ",i);
1439 fprintf(f, "%02X ",(int)buf[i]);
1441 if (i%(per_line/2) == 0) fprintf(f, " ");
1442 if (i%per_line == 0)
1444 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1445 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1446 if (i<len) fprintf(f, "[%03X] ",i);
1449 if ((i%per_line) != 0)
1453 n = per_line - (i%per_line);
1455 if (n>(per_line/2)) fprintf(f, " ");
1460 n = MIN(per_line/2,i%per_line);
1461 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1462 n = (i%per_line) - n;
1463 if (n>0) out_ascii(f,&buf[i-n],n);
1468 void print_asc(int level, const unsigned char *buf,int len)
1472 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1475 void dump_data(int level, const char *buf1,int len)
1477 const unsigned char *buf = (const unsigned char *)buf1;
1481 DEBUG(level,("[%03X] ",i));
1483 DEBUG(level,("%02X ",(int)buf[i]));
1485 if (i%8 == 0) DEBUG(level,(" "));
1487 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1488 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1489 if (i<len) DEBUG(level,("[%03X] ",i));
1497 if (n>8) DEBUG(level,(" "));
1498 while (n--) DEBUG(level,(" "));
1501 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1503 if (n>0) print_asc(level,&buf[i-n],n);
1504 DEBUG(level,("\n"));
1508 char *tab_depth(int depth)
1510 static pstring spaces;
1511 memset(spaces, ' ', depth * 4);
1512 spaces[depth * 4] = 0;
1516 /*****************************************************************************
1517 * Provide a checksum on a string
1519 * Input: s - the null-terminated character string for which the checksum
1520 * will be calculated.
1522 * Output: The checksum value calculated for s.
1524 * ****************************************************************************
1526 int str_checksum(const char *s)
1534 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1539 } /* str_checksum */
1543 /*****************************************************************
1544 zero a memory area then free it. Used to catch bugs faster
1545 *****************************************************************/
1546 void zero_free(void *p, size_t size)
1553 /*****************************************************************
1554 set our open file limit to a requested max and return the limit
1555 *****************************************************************/
1556 int set_maxfiles(int requested_max)
1558 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1560 int saved_current_limit;
1562 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1563 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1566 return requested_max;
1570 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1571 * account for the extra fd we need
1572 * as well as the log files and standard
1573 * handles etc. Save the limit we want to set in case
1574 * we are running on an OS that doesn't support this limit (AIX)
1575 * which always returns RLIM_INFINITY for rlp.rlim_max.
1578 /* Try raising the hard (max) limit to the requested amount. */
1580 #if defined(RLIM_INFINITY)
1581 if (rlp.rlim_max != RLIM_INFINITY) {
1582 int orig_max = rlp.rlim_max;
1584 if ( rlp.rlim_max < requested_max )
1585 rlp.rlim_max = requested_max;
1587 /* This failing is not an error - many systems (Linux) don't
1588 support our default request of 10,000 open files. JRA. */
1590 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1591 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1592 (int)rlp.rlim_max, strerror(errno) ));
1594 /* Set failed - restore original value from get. */
1595 rlp.rlim_max = orig_max;
1600 /* Now try setting the soft (current) limit. */
1602 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1604 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1605 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1606 (int)rlp.rlim_cur, strerror(errno) ));
1608 return saved_current_limit;
1611 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1612 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1615 return saved_current_limit;
1618 #if defined(RLIM_INFINITY)
1619 if(rlp.rlim_cur == RLIM_INFINITY)
1620 return saved_current_limit;
1623 if((int)rlp.rlim_cur > saved_current_limit)
1624 return saved_current_limit;
1626 return rlp.rlim_cur;
1627 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1629 * No way to know - just guess...
1631 return requested_max;
1635 /*****************************************************************
1636 splits out the start of the key (HKLM or HKU) and the rest of the key
1637 *****************************************************************/
1638 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1642 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1649 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1651 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1653 (*reg_type) = HKEY_LOCAL_MACHINE;
1655 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1657 (*reg_type) = HKEY_USERS;
1661 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1665 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
1667 fstrcpy(key_name, tmp);
1674 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1680 /*****************************************************************
1681 possibly replace mkstemp if it is broken
1682 *****************************************************************/
1683 int smb_mkstemp(char *template)
1685 #if HAVE_SECURE_MKSTEMP
1686 return mkstemp(template);
1688 /* have a reasonable go at emulating it. Hope that
1689 the system mktemp() isn't completly hopeless */
1690 char *p = mktemp(template);
1692 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
1696 /*****************************************************************
1697 malloc that aborts with smb_panic on fail or zero size.
1698 *****************************************************************/
1700 void *xmalloc(size_t size)
1704 smb_panic("xmalloc: called with zero size.\n");
1705 if ((p = malloc(size)) == NULL)
1706 smb_panic("xmalloc: malloc fail.\n");
1710 /*****************************************************************
1711 Memdup with smb_panic on fail.
1712 *****************************************************************/
1714 void *xmemdup(const void *p, size_t size)
1718 memcpy(p2, p, size);
1722 /*****************************************************************
1723 strdup that aborts on malloc fail.
1724 *****************************************************************/
1726 char *xstrdup(const char *s)
1728 char *s1 = strdup(s);
1730 smb_panic("xstrdup: malloc fail\n");
1734 /*****************************************************************
1735 like strdup but for memory
1736 *****************************************************************/
1737 void *memdup(const void *p, size_t size)
1740 if (size == 0) return NULL;
1742 if (!p2) return NULL;
1743 memcpy(p2, p, size);
1747 /*****************************************************************
1748 get local hostname and cache result
1749 *****************************************************************/
1750 char *myhostname(void)
1760 /*****************************************************************
1761 a useful function for returning a path in the Samba lock directory
1762 *****************************************************************/
1763 char *lock_path(char *name)
1765 static pstring fname;
1767 pstrcpy(fname,lp_lockdir());
1768 trim_string(fname,"","/");
1770 if (!directory_exist(fname,NULL)) {
1775 pstrcat(fname,name);
1780 /*****************************************************************
1781 a useful function for returning a path in the Samba lib directory
1782 *****************************************************************/
1783 char *lib_path(char *name)
1785 static pstring fname;
1786 snprintf(fname, sizeof(fname), "%s/%s", LIBDIR, name);
1790 /*******************************************************************
1791 Given a filename - get its directory name
1792 NB: Returned in static storage. Caveats:
1793 o Not safe in thread environment.
1794 o Caller must not free.
1795 o If caller wishes to preserve, they should copy.
1796 ********************************************************************/
1798 char *parent_dirname(const char *path)
1800 static pstring dirpath;
1806 pstrcpy(dirpath, path);
1807 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
1809 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1812 ++p; /* For root "/", leave "/" in place */
1819 /*******************************************************************
1820 determine if a pattern contains any Microsoft wildcard characters
1821 *******************************************************************/
1822 BOOL ms_has_wild(char *s)
1825 while ((c = *s++)) {
1838 BOOL ms_has_wild_w(const smb_ucs2_t *s)
1841 while ((c = *s++)) {
1843 case UCS2_CHAR('*'):
1844 case UCS2_CHAR('?'):
1845 case UCS2_CHAR('<'):
1846 case UCS2_CHAR('>'):
1847 case UCS2_CHAR('"'):
1854 /*******************************************************************
1855 a wrapper that handles case sensitivity and the special handling
1857 *******************************************************************/
1858 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1862 if (strcmp(string,"..") == 0) string = ".";
1863 if (strcmp(pattern,".") == 0) return False;
1865 if (is_case_sensitive) {
1866 return ms_fnmatch(pattern, string, Protocol) == 0;
1869 fstrcpy(p2, pattern);
1870 fstrcpy(s2, string);
1873 return ms_fnmatch(p2, s2, Protocol) == 0;
1876 /*********************************************************
1877 Recursive routine that is called by unix_wild_match.
1878 *********************************************************/
1880 static BOOL unix_do_match(char *regexp, char *str)
1884 for( p = regexp; *p && *str; ) {
1895 * Look for a character matching
1896 * the one after the '*'.
1900 return True; /* Automatic match */
1903 while(*str && (*p != *str))
1907 * Patch from weidel@multichart.de. In the case of the regexp
1908 * '*XX*' we want to ensure there are at least 2 'X' characters
1909 * in the string after the '*' for a match to be made.
1916 * Eat all the characters that match, but count how many there were.
1919 while(*str && (*p == *str)) {
1925 * Now check that if the regexp had n identical characters that
1926 * matchcount had at least that many matches.
1929 while ( *(p+1) && (*(p+1) == *p)) {
1934 if ( matchcount <= 0 )
1938 str--; /* We've eaten the match char after the '*' */
1940 if(unix_do_match(p, str))
1962 if (!*p && str[0] == '.' && str[1] == 0)
1965 if (!*str && *p == '?') {
1971 if(!*str && (*p == '*' && p[1] == '\0'))
1977 /*******************************************************************
1978 Simple case insensitive interface to a UNIX wildcard matcher.
1979 *******************************************************************/
1981 BOOL unix_wild_match(char *pattern, char *string)
1986 pstrcpy(p2, pattern);
1987 pstrcpy(s2, string);
1991 /* Remove any *? and ** from the pattern as they are meaningless */
1992 for(p = p2; *p; p++)
1993 while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
1994 pstrcpy( &p[1], &p[2]);
1996 if (strequal(p2,"*"))
1999 return unix_do_match(p2, s2) == 0;
2002 /*******************************************************************
2003 construct a data blob, must be freed with data_blob_free()
2004 *******************************************************************/
2005 DATA_BLOB data_blob(const void *p, size_t length)
2009 if (!p || !length) {
2014 ret.data = xmemdup(p, length);
2015 ret.length = length;
2019 /*******************************************************************
2021 *******************************************************************/
2022 void data_blob_free(DATA_BLOB *d)
2027 /*******************************************************************
2028 free a data blob and clear its contents
2029 *******************************************************************/
2030 void data_blob_clear_free(DATA_BLOB *d)
2033 memset(d->data, 0, d->length);
2040 /*******************************************************************
2041 This routine is a trick to immediately catch errors when debugging
2042 with insure. A xterm with a gdb is popped up when insure catches
2043 a error. It is Linux specific.
2044 ********************************************************************/
2045 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
2050 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'";
2052 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
2053 pstring_sub(cmd, "%d", pidstr);
2057 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
2058 fn = dlsym(h, "_Insure_trap_error");
2061 ret = fn(a1, a2, a3, a4, a5, a6);