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 */
56 #undef Realloc /* SSLeay defines this and samba has a function of this name */
61 extern int DEBUGLEVEL;
63 int Protocol = PROTOCOL_COREPLUS;
65 /* a default finfo structure to ensure all fields are sensible */
66 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
68 /* this is used by the chaining code */
74 case handling on filenames
76 int case_default = CASE_LOWER;
78 /* the following control case operations - they are put here so the
79 client can link easily */
82 BOOL use_mangled_map = False;
83 BOOL short_case_preserve;
86 static enum remote_arch_types ra_type = RA_UNKNOWN;
87 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
89 pstring global_myname = "";
90 fstring global_myworkgroup = "";
91 char **my_netbios_names;
94 /****************************************************************************
95 find a suitable temporary directory. The result should be copied immediately
96 as it may be overwritten by a subsequent call
97 ****************************************************************************/
101 if ((p = getenv("TMPDIR"))) {
107 /****************************************************************************
108 determine whether we are in the specified group
109 ****************************************************************************/
111 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups)
115 if (group == current_gid) return(True);
117 for (i=0;i<ngroups;i++)
118 if (group == groups[i])
125 /****************************************************************************
126 like atoi but gets the value up to the separater character
127 ****************************************************************************/
128 char *Atoic(char *p, int *n, char *c)
130 if (!isdigit((int)*p))
132 DEBUG(5, ("Atoic: malformed number\n"));
138 while ((*p) && isdigit((int)*p))
143 if (strchr_m(c, *p) == NULL)
145 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
152 /*************************************************************************
153 reads a list of numbers
154 *************************************************************************/
155 char *get_numlist(char *p, uint32 **num, int *count)
159 if (num == NULL || count == NULL)
167 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':')
171 tn = Realloc((*num), ((*count)+1) * sizeof(uint32));
174 if (*num) free(*num);
178 (*num)[(*count)] = val;
187 /*******************************************************************
188 check if a file exists - call vfs_file_exist for samba files
189 ********************************************************************/
190 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
193 if (!sbuf) sbuf = &st;
195 if (sys_stat(fname,sbuf) != 0)
198 return(S_ISREG(sbuf->st_mode));
201 /*******************************************************************
202 check a files mod time
203 ********************************************************************/
204 time_t file_modtime(char *fname)
208 if (sys_stat(fname,&st) != 0)
214 /*******************************************************************
215 check if a directory exists
216 ********************************************************************/
217 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
224 if (sys_stat(dname,st) != 0)
227 ret = S_ISDIR(st->st_mode);
233 /*******************************************************************
234 returns the size in bytes of the named file
235 ********************************************************************/
236 SMB_OFF_T get_file_size(char *file_name)
240 if(sys_stat(file_name,&buf) != 0)
241 return (SMB_OFF_T)-1;
245 /*******************************************************************
246 return a string representing an attribute for a file
247 ********************************************************************/
248 char *attrib_string(uint16 mode)
250 static fstring attrstr;
254 if (mode & aVOLID) fstrcat(attrstr,"V");
255 if (mode & aDIR) fstrcat(attrstr,"D");
256 if (mode & aARCH) fstrcat(attrstr,"A");
257 if (mode & aHIDDEN) fstrcat(attrstr,"H");
258 if (mode & aSYSTEM) fstrcat(attrstr,"S");
259 if (mode & aRONLY) fstrcat(attrstr,"R");
264 /*******************************************************************
265 show a smb message structure
266 ********************************************************************/
267 void show_msg(char *buf)
272 if (DEBUGLEVEL < 5) return;
274 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
276 (int)CVAL(buf,smb_com),
277 (int)CVAL(buf,smb_rcls),
278 (int)CVAL(buf,smb_reh),
279 (int)SVAL(buf,smb_err),
280 (int)CVAL(buf,smb_flg),
281 (int)SVAL(buf,smb_flg2)));
282 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
283 (int)SVAL(buf,smb_tid),
284 (int)SVAL(buf,smb_pid),
285 (int)SVAL(buf,smb_uid),
286 (int)SVAL(buf,smb_mid),
287 (int)CVAL(buf,smb_wct)));
289 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
291 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
292 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
295 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
297 DEBUG(5,("smb_bcc=%d\n",bcc));
299 if (DEBUGLEVEL < 10) return;
306 dump_data(10, smb_buf(buf), bcc);
309 /*******************************************************************
310 set the length and marker of an smb packet
311 ********************************************************************/
312 void smb_setlen(char *buf,int len)
314 _smb_setlen(buf,len);
322 /*******************************************************************
323 setup the word count and byte count for a smb message
324 ********************************************************************/
325 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
328 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
329 CVAL(buf,smb_wct) = num_words;
330 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
331 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
332 return (smb_size + num_words*2 + num_bytes);
335 /*******************************************************************
336 setup only the byte count for a smb message
337 ********************************************************************/
338 void set_message_bcc(char *buf,int num_bytes)
340 int num_words = CVAL(buf,smb_wct);
341 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
342 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
345 /*******************************************************************
346 setup only the byte count for a smb message, using the end of the
348 ********************************************************************/
349 void set_message_end(void *outbuf,void *end_ptr)
351 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 ****************************************************************************/
424 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
431 if ((mode & aDIR) != 0)
434 memset(buf+1,' ',11);
435 if ((p = strchr_m(mask2,'.')) != NULL)
438 push_ascii(buf+1,mask2,8, 0);
439 push_ascii(buf+9,p+1,3, 0);
443 push_ascii(buf+1,mask2,11, 0);
445 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
447 put_dos_date(buf,22,date);
448 SSVAL(buf,26,size & 0xFFFF);
449 SSVAL(buf,28,(size >> 16)&0xFFFF);
450 push_ascii(buf+30,fname,12, 0);
453 DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
457 /*******************************************************************
458 close the low 3 fd's and open dev/null in their place
459 ********************************************************************/
460 void close_low_fds(void)
468 /* try and use up these file descriptors, so silly
469 library routines writing to stdout etc won't cause havoc */
471 fd = sys_open("/dev/null",O_RDWR,0);
472 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
474 DEBUG(0,("Can't open /dev/null\n"));
478 DEBUG(0,("Didn't get file descriptor %d\n",i));
484 /****************************************************************************
485 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
489 ****************************************************************************/
490 int set_blocking(int fd, BOOL set)
494 #define FLAG_TO_SET O_NONBLOCK
497 #define FLAG_TO_SET O_NDELAY
499 #define FLAG_TO_SET FNDELAY
503 if((val = fcntl(fd, F_GETFL, 0)) == -1)
505 if(set) /* Turn blocking on - ie. clear nonblock flag */
509 return fcntl( fd, F_SETFL, val);
513 /****************************************************************************
514 transfer some data between two fd's
515 ****************************************************************************/
516 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n,char *header,int headlen,int align)
518 static char *buf=NULL;
523 DEBUG(4,("transfer_file n=%.0f (head=%d) called\n",(double)n,headlen));
526 size = lp_readsize();
527 size = MAX(size,1024);
530 while (!buf && size>0) {
531 buf = (char *)malloc(size+8);
536 DEBUG(0,("Can't allocate transfer buffer!\n"));
540 abuf = buf + (align%8);
547 int s = (int)MIN(n,(SMB_OFF_T)size);
552 if (header && (headlen >= MIN(s,1024))) {
562 if (header && headlen > 0)
564 ret = MIN(headlen,size);
565 memcpy(buf1,header,ret);
568 if (headlen <= 0) header = NULL;
572 ret += read(infd,buf1+ret,s-ret);
576 ret2 = (outfd>=0?write_data(outfd,buf1,ret):ret);
577 if (ret2 > 0) total += ret2;
578 /* if we can't write then dump excess data */
580 transfer_file(infd,-1,n-(ret+headlen),NULL,0,0);
582 if (ret <= 0 || ret2 != ret)
590 /*******************************************************************
591 sleep for a specified number of milliseconds
592 ********************************************************************/
596 struct timeval tval,t1,t2;
603 tval.tv_sec = (t-tdiff)/1000;
604 tval.tv_usec = 1000*((t-tdiff)%1000);
608 sys_select_intr(0,&fds,&tval);
611 tdiff = TvalDiff(&t1,&t2);
616 /****************************************************************************
617 become a daemon, discarding the controlling terminal
618 ****************************************************************************/
619 void become_daemon(void)
625 /* detach from the terminal */
628 #elif defined(TIOCNOTTY)
630 int i = sys_open("/dev/tty", O_RDWR, 0);
632 ioctl(i, (int) TIOCNOTTY, (char *)0);
636 #endif /* HAVE_SETSID */
638 /* Close fd's 0,1,2. Needed if started by rsh */
643 /****************************************************************************
644 put up a yes/no prompt
645 ****************************************************************************/
651 if (!fgets(ans,sizeof(ans)-1,stdin))
654 if (*ans == 'y' || *ans == 'Y')
661 /****************************************************************************
662 this is a version of setbuffer() for those machines that only have setvbuf
663 ****************************************************************************/
664 void setbuffer(FILE *f,char *buf,int bufsize)
666 setvbuf(f,buf,_IOFBF,bufsize);
670 /****************************************************************************
671 expand a pointer to be a particular size
672 ****************************************************************************/
673 void *Realloc(void *p,size_t size)
679 DEBUG(5,("Realloc asked for 0 bytes\n"));
684 ret = (void *)malloc(size);
686 ret = (void *)realloc(p,size);
689 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
695 /****************************************************************************
696 free memory, checks for NULL
697 ****************************************************************************/
698 void safe_free(void *p)
707 /****************************************************************************
708 get my own name and IP
709 ****************************************************************************/
710 BOOL get_myname(char *my_name)
716 /* get my host name */
717 if (gethostname(hostname, sizeof(hostname)) == -1) {
718 DEBUG(0,("gethostname failed\n"));
722 /* Ensure null termination. */
723 hostname[sizeof(hostname)-1] = '\0';
726 /* split off any parts after an initial . */
727 char *p = strchr_m(hostname,'.');
730 fstrcpy(my_name,hostname);
736 /****************************************************************************
737 interpret a protocol description string, with a default
738 ****************************************************************************/
739 int interpret_protocol(char *str,int def)
741 if (strequal(str,"NT1"))
742 return(PROTOCOL_NT1);
743 if (strequal(str,"LANMAN2"))
744 return(PROTOCOL_LANMAN2);
745 if (strequal(str,"LANMAN1"))
746 return(PROTOCOL_LANMAN1);
747 if (strequal(str,"CORE"))
748 return(PROTOCOL_CORE);
749 if (strequal(str,"COREPLUS"))
750 return(PROTOCOL_COREPLUS);
751 if (strequal(str,"CORE+"))
752 return(PROTOCOL_COREPLUS);
754 DEBUG(0,("Unrecognised protocol level %s\n",str));
759 /****************************************************************************
760 Return true if a string could be a pure IP address.
761 ****************************************************************************/
763 BOOL is_ipaddress(const char *str)
765 BOOL pure_address = True;
768 for (i=0; pure_address && str[i]; i++)
769 if (!(isdigit((int)str[i]) || str[i] == '.'))
770 pure_address = False;
772 /* Check that a pure number is not misinterpreted as an IP */
773 pure_address = pure_address && (strchr_m(str, '.') != NULL);
778 /****************************************************************************
779 interpret an internet address or name into an IP address in 4 byte form
780 ****************************************************************************/
782 uint32 interpret_addr(const char *str)
787 if (strcmp(str,"0.0.0.0") == 0) return(0);
788 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
790 /* if it's in the form of an IP address then get the lib to interpret it */
791 if (is_ipaddress(str)) {
792 res = inet_addr(str);
794 /* otherwise assume it's a network name of some sort and use
796 if ((hp = sys_gethostbyname(str)) == 0) {
797 DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
800 if(hp->h_addr == NULL) {
801 DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
804 putip((char *)&res,(char *)hp->h_addr);
807 if (res == (uint32)-1) return(0);
812 /*******************************************************************
813 a convenient addition to interpret_addr()
814 ******************************************************************/
815 struct in_addr *interpret_addr2(const char *str)
817 static struct in_addr ret;
818 uint32 a = interpret_addr(str);
823 /*******************************************************************
824 check if an IP is the 0.0.0.0
825 ******************************************************************/
826 BOOL zero_ip(struct in_addr ip)
829 putip((char *)&a,(char *)&ip);
834 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
835 /******************************************************************
836 Remove any mount options such as -rsize=2048,wsize=2048 etc.
837 Based on a fix from <Thomas.Hepper@icem.de>.
838 *******************************************************************/
840 static void strip_mount_options( pstring *str)
845 while(*p && !isspace(*p))
847 while(*p && isspace(*p))
853 pstrcpy(*str, tmp_str);
858 /*******************************************************************
859 Patch from jkf@soton.ac.uk
860 Split Luke's automount_server into YP lookup and string splitter
861 so can easily implement automount_path().
862 As we may end up doing both, cache the last YP result.
863 *******************************************************************/
865 #ifdef WITH_NISPLUS_HOME
866 char *automount_lookup(char *user_name)
868 static fstring last_key = "";
869 static pstring last_value = "";
871 char *nis_map = (char *)lp_nis_home_map_name();
873 char buffer[NIS_MAXATTRVAL + 1];
878 if (strcmp(user_name, last_key))
880 slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
881 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
883 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL))
885 if (result->status != NIS_SUCCESS)
887 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
888 fstrcpy(last_key, ""); pstrcpy(last_value, "");
892 object = result->objects.objects_val;
893 if (object->zo_data.zo_type == ENTRY_OBJ)
895 entry = &object->zo_data.objdata_u.en_data;
896 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
897 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
899 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
900 pstring_sub(last_value, "&", user_name);
901 fstrcpy(last_key, user_name);
905 nis_freeresult(result);
908 strip_mount_options(&last_value);
910 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
913 #else /* WITH_NISPLUS_HOME */
914 char *automount_lookup(char *user_name)
916 static fstring last_key = "";
917 static pstring last_value = "";
919 int nis_error; /* returned by yp all functions */
920 char *nis_result; /* yp_match inits this */
921 int nis_result_len; /* and set this */
922 char *nis_domain; /* yp_get_default_domain inits this */
923 char *nis_map = (char *)lp_nis_home_map_name();
925 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
926 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
930 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
932 if (!strcmp(user_name, last_key)) {
933 nis_result = last_value;
934 nis_result_len = strlen(last_value);
939 if ((nis_error = yp_match(nis_domain, nis_map,
940 user_name, strlen(user_name),
941 &nis_result, &nis_result_len)) == 0) {
942 if (!nis_error && nis_result_len >= sizeof(pstring)) {
943 nis_result_len = sizeof(pstring)-1;
945 fstrcpy(last_key, user_name);
946 strncpy(last_value, nis_result, nis_result_len);
947 last_value[nis_result_len] = '\0';
948 strip_mount_options(&last_value);
950 } else if(nis_error == YPERR_KEY) {
952 /* If Key lookup fails user home server is not in nis_map
953 use default information for server, and home directory */
955 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
956 user_name, nis_map));
957 DEBUG(3, ("using defaults for server and home directory\n"));
959 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
960 yperr_string(nis_error), user_name, nis_map));
965 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
968 #endif /* WITH_NISPLUS_HOME */
972 /*******************************************************************
973 are two IPs on the same subnet?
974 ********************************************************************/
975 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
977 uint32 net1,net2,nmask;
979 nmask = ntohl(mask.s_addr);
980 net1 = ntohl(ip1.s_addr);
981 net2 = ntohl(ip2.s_addr);
983 return((net1 & nmask) == (net2 & nmask));
987 /****************************************************************************
988 check if a process exists. Does this work on all unixes?
989 ****************************************************************************/
991 BOOL process_exists(pid_t pid)
993 return(kill(pid,0) == 0 || errno != ESRCH);
997 /*******************************************************************
998 Convert a uid into a user name.
999 ********************************************************************/
1001 char *uidtoname(uid_t uid)
1003 static fstring name;
1004 struct passwd *pass;
1006 if (winbind_uidtoname(name, uid))
1009 pass = sys_getpwuid(uid);
1010 if (pass) return(pass->pw_name);
1011 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
1016 /*******************************************************************
1017 Convert a gid into a group name.
1018 ********************************************************************/
1020 char *gidtoname(gid_t gid)
1022 static fstring name;
1025 if (winbind_gidtoname(name, gid))
1028 grp = getgrgid(gid);
1029 if (grp) return(grp->gr_name);
1030 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1034 /*******************************************************************
1035 Convert a user name into a uid. If winbindd is present uses this.
1036 ********************************************************************/
1038 uid_t nametouid(char *name)
1040 struct passwd *pass;
1044 u = (uid_t)strtol(name, &p, 0);
1045 if ((p != name) && (*p == '\0'))
1048 if (winbind_nametouid(&u, name))
1051 pass = sys_getpwnam(name);
1053 return(pass->pw_uid);
1057 /*******************************************************************
1058 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1059 is present does a shortcut lookup...
1060 ********************************************************************/
1062 gid_t nametogid(char *name)
1068 g = (gid_t)strtol(name, &p, 0);
1069 if ((p != name) && (*p == '\0'))
1072 if (winbind_nametogid(&g, name))
1075 grp = getgrnam(name);
1077 return(grp->gr_gid);
1081 /*******************************************************************
1082 something really nasty happened - panic!
1083 ********************************************************************/
1084 void smb_panic(char *why)
1086 char *cmd = lp_panic_action();
1090 DEBUG(0,("PANIC: %s\n", why));
1096 /*******************************************************************
1097 a readdir wrapper which just returns the file name
1098 ********************************************************************/
1099 char *readdirname(DIR *p)
1101 SMB_STRUCT_DIRENT *ptr;
1104 if (!p) return(NULL);
1106 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1107 if (!ptr) return(NULL);
1109 dname = ptr->d_name;
1112 if (telldir(p) < 0) return(NULL);
1115 #ifdef HAVE_BROKEN_READDIR
1116 /* using /usr/ucb/cc is BAD */
1122 int len = NAMLEN(ptr);
1123 memcpy(buf, dname, len);
1131 /*******************************************************************
1132 Utility function used to decide if the last component
1133 of a path matches a (possibly wildcarded) entry in a namelist.
1134 ********************************************************************/
1136 BOOL is_in_path(char *name, name_compare_entry *namelist)
1138 pstring last_component;
1141 DEBUG(8, ("is_in_path: %s\n", name));
1143 /* if we have no list it's obviously not in the path */
1144 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1146 DEBUG(8,("is_in_path: no name list.\n"));
1150 /* Get the last component of the unix name. */
1151 p = strrchr_m(name, '/');
1152 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1153 last_component[sizeof(last_component)-1] = '\0';
1155 for(; namelist->name != NULL; namelist++)
1157 if(namelist->is_wild)
1159 if (mask_match(last_component, namelist->name, case_sensitive))
1161 DEBUG(8,("is_in_path: mask match succeeded\n"));
1167 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1168 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1170 DEBUG(8,("is_in_path: match succeeded\n"));
1175 DEBUG(8,("is_in_path: match not found\n"));
1180 /*******************************************************************
1181 Strip a '/' separated list into an array of
1182 name_compare_enties structures suitable for
1183 passing to is_in_path(). We do this for
1184 speed so we can pre-parse all the names in the list
1185 and don't do it for each call to is_in_path().
1186 namelist is modified here and is assumed to be
1187 a copy owned by the caller.
1188 We also check if the entry contains a wildcard to
1189 remove a potentially expensive call to mask_match
1191 ********************************************************************/
1193 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1196 char *nameptr = namelist;
1197 int num_entries = 0;
1200 (*ppname_array) = NULL;
1202 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1205 /* We need to make two passes over the string. The
1206 first to count the number of elements, the second
1211 if ( *nameptr == '/' )
1213 /* cope with multiple (useless) /s) */
1217 /* find the next / */
1218 name_end = strchr_m(nameptr, '/');
1220 /* oops - the last check for a / didn't find one. */
1221 if (name_end == NULL)
1224 /* next segment please */
1225 nameptr = name_end + 1;
1229 if(num_entries == 0)
1232 if(( (*ppname_array) = (name_compare_entry *)malloc(
1233 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1235 DEBUG(0,("set_namearray: malloc fail\n"));
1239 /* Now copy out the names */
1244 if ( *nameptr == '/' )
1246 /* cope with multiple (useless) /s) */
1250 /* find the next / */
1251 if ((name_end = strchr_m(nameptr, '/')) != NULL)
1256 /* oops - the last check for a / didn't find one. */
1257 if(name_end == NULL)
1260 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1261 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1263 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1267 /* next segment please */
1268 nameptr = name_end + 1;
1272 (*ppname_array)[i].name = NULL;
1277 /****************************************************************************
1278 routine to free a namearray.
1279 ****************************************************************************/
1281 void free_namearray(name_compare_entry *name_array)
1286 if(name_array->name != NULL)
1287 free(name_array->name);
1289 free((char *)name_array);
1292 /****************************************************************************
1293 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1294 is dealt with in posix.c
1295 ****************************************************************************/
1297 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1299 SMB_STRUCT_FLOCK lock;
1302 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1305 lock.l_whence = SEEK_SET;
1306 lock.l_start = offset;
1312 ret = fcntl(fd,op,&lock);
1315 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1318 if (op == SMB_F_GETLK)
1321 (lock.l_type != F_UNLCK) &&
1322 (lock.l_pid != 0) &&
1323 (lock.l_pid != sys_getpid()))
1325 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1329 /* it must be not locked or locked by me */
1333 /* a lock set or unset */
1336 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1337 (double)offset,(double)count,op,type,strerror(errno)));
1341 /* everything went OK */
1342 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1347 /*******************************************************************
1348 is the name specified one of my netbios names
1349 returns true is it is equal, false otherwise
1350 ********************************************************************/
1351 BOOL is_myname(char *s)
1356 for (n=0; my_netbios_names[n]; n++) {
1357 if (strequal(my_netbios_names[n], s))
1360 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1364 /*******************************************************************
1365 set the horrid remote_arch string based on an enum.
1366 ********************************************************************/
1367 void set_remote_arch(enum remote_arch_types type)
1369 extern fstring remote_arch;
1374 fstrcpy(remote_arch, "WfWg");
1377 fstrcpy(remote_arch, "OS2");
1380 fstrcpy(remote_arch, "Win95");
1383 fstrcpy(remote_arch, "WinNT");
1386 fstrcpy(remote_arch, "Win2K");
1389 fstrcpy(remote_arch,"Samba");
1392 ra_type = RA_UNKNOWN;
1393 fstrcpy(remote_arch, "UNKNOWN");
1398 /*******************************************************************
1399 Get the remote_arch type.
1400 ********************************************************************/
1401 enum remote_arch_types get_remote_arch(void)
1407 void out_ascii(FILE *f, unsigned char *buf,int len)
1412 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1416 void out_data(FILE *f,char *buf1,int len, int per_line)
1418 unsigned char *buf = (unsigned char *)buf1;
1425 fprintf(f, "[%03X] ",i);
1428 fprintf(f, "%02X ",(int)buf[i]);
1430 if (i%(per_line/2) == 0) fprintf(f, " ");
1431 if (i%per_line == 0)
1433 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1434 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1435 if (i<len) fprintf(f, "[%03X] ",i);
1438 if ((i%per_line) != 0)
1442 n = per_line - (i%per_line);
1444 if (n>(per_line/2)) fprintf(f, " ");
1449 n = MIN(per_line/2,i%per_line);
1450 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1451 n = (i%per_line) - n;
1452 if (n>0) out_ascii(f,&buf[i-n],n);
1457 void print_asc(int level, const unsigned char *buf,int len)
1461 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1464 void dump_data(int level, const char *buf1,int len)
1466 const unsigned char *buf = (const unsigned char *)buf1;
1470 DEBUG(level,("[%03X] ",i));
1472 DEBUG(level,("%02X ",(int)buf[i]));
1474 if (i%8 == 0) DEBUG(level,(" "));
1476 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1477 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1478 if (i<len) DEBUG(level,("[%03X] ",i));
1486 if (n>8) DEBUG(level,(" "));
1487 while (n--) DEBUG(level,(" "));
1490 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1492 if (n>0) print_asc(level,&buf[i-n],n);
1493 DEBUG(level,("\n"));
1497 char *tab_depth(int depth)
1499 static pstring spaces;
1500 memset(spaces, ' ', depth * 4);
1501 spaces[depth * 4] = 0;
1505 /*****************************************************************************
1506 * Provide a checksum on a string
1508 * Input: s - the null-terminated character string for which the checksum
1509 * will be calculated.
1511 * Output: The checksum value calculated for s.
1513 * ****************************************************************************
1515 int str_checksum(const char *s)
1523 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1528 } /* str_checksum */
1532 /*****************************************************************
1533 zero a memory area then free it. Used to catch bugs faster
1534 *****************************************************************/
1535 void zero_free(void *p, size_t size)
1542 /*****************************************************************
1543 set our open file limit to a requested max and return the limit
1544 *****************************************************************/
1545 int set_maxfiles(int requested_max)
1547 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1549 int saved_current_limit;
1551 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1552 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1555 return requested_max;
1559 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1560 * account for the extra fd we need
1561 * as well as the log files and standard
1562 * handles etc. Save the limit we want to set in case
1563 * we are running on an OS that doesn't support this limit (AIX)
1564 * which always returns RLIM_INFINITY for rlp.rlim_max.
1567 /* Try raising the hard (max) limit to the requested amount. */
1569 #if defined(RLIM_INFINITY)
1570 if (rlp.rlim_max != RLIM_INFINITY) {
1571 int orig_max = rlp.rlim_max;
1573 if ( rlp.rlim_max < requested_max )
1574 rlp.rlim_max = requested_max;
1576 /* This failing is not an error - many systems (Linux) don't
1577 support our default request of 10,000 open files. JRA. */
1579 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1580 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1581 (int)rlp.rlim_max, strerror(errno) ));
1583 /* Set failed - restore original value from get. */
1584 rlp.rlim_max = orig_max;
1589 /* Now try setting the soft (current) limit. */
1591 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1593 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1594 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1595 (int)rlp.rlim_cur, strerror(errno) ));
1597 return saved_current_limit;
1600 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1601 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1604 return saved_current_limit;
1607 #if defined(RLIM_INFINITY)
1608 if(rlp.rlim_cur == RLIM_INFINITY)
1609 return saved_current_limit;
1612 if((int)rlp.rlim_cur > saved_current_limit)
1613 return saved_current_limit;
1615 return rlp.rlim_cur;
1616 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1618 * No way to know - just guess...
1620 return requested_max;
1624 /*****************************************************************
1625 splits out the start of the key (HKLM or HKU) and the rest of the key
1626 *****************************************************************/
1627 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1631 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1638 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1640 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1642 (*reg_type) = HKEY_LOCAL_MACHINE;
1644 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1646 (*reg_type) = HKEY_USERS;
1650 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1654 if (next_token(&full_keyname, tmp, "\n\r", sizeof(tmp)))
1656 fstrcpy(key_name, tmp);
1663 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1669 /*****************************************************************
1670 possibly replace mkstemp if it is broken
1671 *****************************************************************/
1672 int smb_mkstemp(char *template)
1674 #if HAVE_SECURE_MKSTEMP
1675 return mkstemp(template);
1677 /* have a reasonable go at emulating it. Hope that
1678 the system mktemp() isn't completly hopeless */
1679 char *p = mktemp(template);
1681 return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
1685 /*****************************************************************
1686 like strdup but for memory
1687 *****************************************************************/
1688 void *memdup(void *p, size_t size)
1691 if (size == 0) return NULL;
1693 if (!p2) return NULL;
1694 memcpy(p2, p, size);
1698 /*****************************************************************
1699 get local hostname and cache result
1700 *****************************************************************/
1701 char *myhostname(void)
1711 /*****************************************************************
1712 a useful function for returning a path in the Samba lock directory
1713 *****************************************************************/
1714 char *lock_path(char *name)
1716 static pstring fname;
1718 pstrcpy(fname,lp_lockdir());
1719 trim_string(fname,"","/");
1721 if (!directory_exist(fname,NULL)) {
1726 pstrcat(fname,name);
1731 /*******************************************************************
1732 Given a filename - get its directory name
1733 NB: Returned in static storage. Caveats:
1734 o Not safe in thread environment.
1735 o Caller must not free.
1736 o If caller wishes to preserve, they should copy.
1737 ********************************************************************/
1739 char *parent_dirname(const char *path)
1741 static pstring dirpath;
1747 pstrcpy(dirpath, path);
1748 p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
1750 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1753 ++p; /* For root "/", leave "/" in place */
1760 /*******************************************************************
1761 determine if a pattern contains any Microsoft wildcard characters
1762 *******************************************************************/
1763 BOOL ms_has_wild(char *s)
1766 while ((c = *s++)) {
1779 /*******************************************************************
1780 a wrapper that handles case sensitivity and the special handling
1782 *******************************************************************/
1783 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1785 extern int Protocol;
1788 if (strcmp(string,"..") == 0) string = ".";
1789 if (strcmp(pattern,".") == 0) return False;
1791 if (is_case_sensitive) {
1792 return ms_fnmatch(pattern, string, Protocol) == 0;
1795 fstrcpy(p2, pattern);
1796 fstrcpy(s2, string);
1799 return ms_fnmatch(p2, s2, Protocol) == 0;
1802 /*******************************************************************
1803 Simple case insensitive interface to ms_fnmatch.
1804 *******************************************************************/
1806 BOOL wild_match(char *string, char *pattern)
1809 extern int Protocol;
1811 pstrcpy(p2, pattern);
1812 pstrcpy(s2, string);
1815 return ms_fnmatch(p2, s2, Protocol) == 0;
1820 /*******************************************************************
1821 This routine is a trick to immediately catch errors when debugging
1822 with insure. A xterm with a gdb is popped up when insure catches
1823 a error. It is Linux specific.
1824 ********************************************************************/
1825 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
1830 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'";
1832 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
1833 pstring_sub(cmd, "%d", pidstr);
1837 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
1838 fn = dlsym(h, "_Insure_trap_error");
1841 ret = fn(a1, a2, a3, a4, a5, a6);