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(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) != ':')
169 (*num) = Realloc((*num), ((*count)+1) * sizeof(uint32));
174 (*num)[(*count)] = val;
183 /*******************************************************************
184 check if a file exists - call vfs_file_exist for samba files
185 ********************************************************************/
186 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
189 if (!sbuf) sbuf = &st;
191 if (sys_stat(fname,sbuf) != 0)
194 return(S_ISREG(sbuf->st_mode));
197 /*******************************************************************
199 ********************************************************************/
200 int file_rename(char *from, char *to)
202 int rcode = rename (from, to);
206 /* Rename across filesystems needed. */
207 rcode = copy_reg (from, to);
212 /*******************************************************************
213 check a files mod time
214 ********************************************************************/
215 time_t file_modtime(char *fname)
219 if (sys_stat(fname,&st) != 0)
225 /*******************************************************************
226 check if a directory exists
227 ********************************************************************/
228 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
235 if (sys_stat(dname,st) != 0)
238 ret = S_ISDIR(st->st_mode);
244 /*******************************************************************
245 returns the size in bytes of the named file
246 ********************************************************************/
247 SMB_OFF_T get_file_size(char *file_name)
251 if(sys_stat(file_name,&buf) != 0)
252 return (SMB_OFF_T)-1;
256 /*******************************************************************
257 return a string representing an attribute for a file
258 ********************************************************************/
259 char *attrib_string(uint16 mode)
261 static fstring attrstr;
265 if (mode & aVOLID) fstrcat(attrstr,"V");
266 if (mode & aDIR) fstrcat(attrstr,"D");
267 if (mode & aARCH) fstrcat(attrstr,"A");
268 if (mode & aHIDDEN) fstrcat(attrstr,"H");
269 if (mode & aSYSTEM) fstrcat(attrstr,"S");
270 if (mode & aRONLY) fstrcat(attrstr,"R");
275 /*******************************************************************
276 show a smb message structure
277 ********************************************************************/
278 void show_msg(char *buf)
283 if (DEBUGLEVEL < 5) return;
285 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
287 (int)CVAL(buf,smb_com),
288 (int)CVAL(buf,smb_rcls),
289 (int)CVAL(buf,smb_reh),
290 (int)SVAL(buf,smb_err),
291 (int)CVAL(buf,smb_flg),
292 (int)SVAL(buf,smb_flg2)));
293 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
294 (int)SVAL(buf,smb_tid),
295 (int)SVAL(buf,smb_pid),
296 (int)SVAL(buf,smb_uid),
297 (int)SVAL(buf,smb_mid),
298 (int)CVAL(buf,smb_wct)));
300 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
302 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
303 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
306 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
308 DEBUG(5,("smb_bcc=%d\n",bcc));
310 if (DEBUGLEVEL < 10) return;
317 dump_data(10, smb_buf(buf), bcc);
320 /*******************************************************************
321 set the length and marker of an smb packet
322 ********************************************************************/
323 void smb_setlen(char *buf,int len)
325 _smb_setlen(buf,len);
333 /*******************************************************************
334 setup the word count and byte count for a smb message
335 ********************************************************************/
336 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
339 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
340 CVAL(buf,smb_wct) = num_words;
341 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
342 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
343 return (smb_size + num_words*2 + num_bytes);
346 /*******************************************************************
347 setup only the byte count for a smb message
348 ********************************************************************/
349 void set_message_bcc(char *buf,int num_bytes)
351 int num_words = CVAL(buf,smb_wct);
352 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
353 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
356 /*******************************************************************
357 setup only the byte count for a smb message, using the end of the
359 ********************************************************************/
360 void set_message_end(void *outbuf,void *end_ptr)
362 set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
365 /*******************************************************************
366 reduce a file name, removing .. elements.
367 ********************************************************************/
368 void dos_clean_name(char *s)
372 DEBUG(3,("dos_clean_name [%s]\n",s));
374 /* remove any double slashes */
375 all_string_sub(s, "\\\\", "\\", 0);
377 while ((p = strstr(s,"\\..\\")) != NULL)
384 if ((p=strrchr(s,'\\')) != NULL)
391 trim_string(s,NULL,"\\..");
393 all_string_sub(s, "\\.\\", "\\", 0);
396 /*******************************************************************
397 reduce a file name, removing .. elements.
398 ********************************************************************/
399 void unix_clean_name(char *s)
403 DEBUG(3,("unix_clean_name [%s]\n",s));
405 /* remove any double slashes */
406 all_string_sub(s, "//","/", 0);
408 /* Remove leading ./ characters */
409 if(strncmp(s, "./", 2) == 0) {
410 trim_string(s, "./", NULL);
415 while ((p = strstr(s,"/../")) != NULL)
422 if ((p=strrchr(s,'/')) != NULL)
429 trim_string(s,NULL,"/..");
432 /****************************************************************************
434 ****************************************************************************/
435 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
442 if ((mode & aDIR) != 0)
445 memset(buf+1,' ',11);
446 if ((p = strchr(mask2,'.')) != NULL)
449 memcpy(buf+1,mask2,MIN(strlen(mask2),8));
450 memcpy(buf+9,p+1,MIN(strlen(p+1),3));
454 memcpy(buf+1,mask2,MIN(strlen(mask2),11));
456 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
458 put_dos_date(buf,22,date);
459 SSVAL(buf,26,size & 0xFFFF);
460 SSVAL(buf,28,(size >> 16)&0xFFFF);
461 StrnCpy(buf+30,fname,12);
464 DEBUG(8,("put name [%s] into dir struct\n",buf+30));
468 /*******************************************************************
469 close the low 3 fd's and open dev/null in their place
470 ********************************************************************/
471 void close_low_fds(void)
479 /* try and use up these file descriptors, so silly
480 library routines writing to stdout etc won't cause havoc */
482 fd = sys_open("/dev/null",O_RDWR,0);
483 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
485 DEBUG(0,("Can't open /dev/null\n"));
489 DEBUG(0,("Didn't get file descriptor %d\n",i));
495 /****************************************************************************
496 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
500 ****************************************************************************/
501 int set_blocking(int fd, BOOL set)
505 #define FLAG_TO_SET O_NONBLOCK
508 #define FLAG_TO_SET O_NDELAY
510 #define FLAG_TO_SET FNDELAY
514 if((val = fcntl(fd, F_GETFL, 0)) == -1)
516 if(set) /* Turn blocking on - ie. clear nonblock flag */
520 return fcntl( fd, F_SETFL, val);
524 /****************************************************************************
525 transfer some data between two fd's
526 ****************************************************************************/
527 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n,char *header,int headlen,int align)
529 static char *buf=NULL;
534 DEBUG(4,("transfer_file n=%.0f (head=%d) called\n",(double)n,headlen));
537 size = lp_readsize();
538 size = MAX(size,1024);
541 while (!buf && size>0) {
542 buf = (char *)Realloc(buf,size+8);
547 DEBUG(0,("Can't allocate transfer buffer!\n"));
551 abuf = buf + (align%8);
558 int s = (int)MIN(n,(SMB_OFF_T)size);
563 if (header && (headlen >= MIN(s,1024))) {
573 if (header && headlen > 0)
575 ret = MIN(headlen,size);
576 memcpy(buf1,header,ret);
579 if (headlen <= 0) header = NULL;
583 ret += read(infd,buf1+ret,s-ret);
587 ret2 = (outfd>=0?write_data(outfd,buf1,ret):ret);
588 if (ret2 > 0) total += ret2;
589 /* if we can't write then dump excess data */
591 transfer_file(infd,-1,n-(ret+headlen),NULL,0,0);
593 if (ret <= 0 || ret2 != ret)
601 /*******************************************************************
602 sleep for a specified number of milliseconds
603 ********************************************************************/
607 struct timeval tval,t1,t2;
614 tval.tv_sec = (t-tdiff)/1000;
615 tval.tv_usec = 1000*((t-tdiff)%1000);
619 sys_select_intr(0,&fds,&tval);
622 tdiff = TvalDiff(&t1,&t2);
627 /****************************************************************************
628 become a daemon, discarding the controlling terminal
629 ****************************************************************************/
630 void become_daemon(void)
636 /* detach from the terminal */
639 #elif defined(TIOCNOTTY)
641 int i = sys_open("/dev/tty", O_RDWR, 0);
643 ioctl(i, (int) TIOCNOTTY, (char *)0);
647 #endif /* HAVE_SETSID */
649 /* Close fd's 0,1,2. Needed if started by rsh */
654 /****************************************************************************
655 put up a yes/no prompt
656 ****************************************************************************/
662 if (!fgets(ans,sizeof(ans)-1,stdin))
665 if (*ans == 'y' || *ans == 'Y')
672 /****************************************************************************
673 this is a version of setbuffer() for those machines that only have setvbuf
674 ****************************************************************************/
675 void setbuffer(FILE *f,char *buf,int bufsize)
677 setvbuf(f,buf,_IOFBF,bufsize);
681 /****************************************************************************
682 expand a pointer to be a particular size
683 ****************************************************************************/
684 void *Realloc(void *p,size_t size)
690 DEBUG(5,("Realloc asked for 0 bytes\n"));
695 ret = (void *)malloc(size);
697 ret = (void *)realloc(p,size);
700 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
706 /****************************************************************************
707 free memory, checks for NULL
708 ****************************************************************************/
709 void safe_free(void *p)
718 /****************************************************************************
719 get my own name and IP
720 ****************************************************************************/
721 BOOL get_myname(char *my_name)
727 /* get my host name */
728 if (gethostname(hostname, sizeof(hostname)) == -1) {
729 DEBUG(0,("gethostname failed\n"));
733 /* Ensure null termination. */
734 hostname[sizeof(hostname)-1] = '\0';
737 /* split off any parts after an initial . */
738 char *p = strchr(hostname,'.');
741 fstrcpy(my_name,hostname);
747 /****************************************************************************
748 interpret a protocol description string, with a default
749 ****************************************************************************/
750 int interpret_protocol(char *str,int def)
752 if (strequal(str,"NT1"))
753 return(PROTOCOL_NT1);
754 if (strequal(str,"LANMAN2"))
755 return(PROTOCOL_LANMAN2);
756 if (strequal(str,"LANMAN1"))
757 return(PROTOCOL_LANMAN1);
758 if (strequal(str,"CORE"))
759 return(PROTOCOL_CORE);
760 if (strequal(str,"COREPLUS"))
761 return(PROTOCOL_COREPLUS);
762 if (strequal(str,"CORE+"))
763 return(PROTOCOL_COREPLUS);
765 DEBUG(0,("Unrecognised protocol level %s\n",str));
770 /****************************************************************************
771 Return true if a string could be a pure IP address.
772 ****************************************************************************/
774 BOOL is_ipaddress(const char *str)
776 BOOL pure_address = True;
779 for (i=0; pure_address && str[i]; i++)
780 if (!(isdigit((int)str[i]) || str[i] == '.'))
781 pure_address = False;
783 /* Check that a pure number is not misinterpreted as an IP */
784 pure_address = pure_address && (strchr(str, '.') != NULL);
789 /****************************************************************************
790 interpret an internet address or name into an IP address in 4 byte form
791 ****************************************************************************/
793 uint32 interpret_addr(char *str)
798 if (strcmp(str,"0.0.0.0") == 0) return(0);
799 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
801 /* if it's in the form of an IP address then get the lib to interpret it */
802 if (is_ipaddress(str)) {
803 res = inet_addr(str);
805 /* otherwise assume it's a network name of some sort and use
807 if ((hp = Get_Hostbyname(str)) == 0) {
808 DEBUG(3,("Get_Hostbyname: Unknown host. %s\n",str));
811 if(hp->h_addr == NULL) {
812 DEBUG(3,("Get_Hostbyname: host address is invalid for host %s\n",str));
815 putip((char *)&res,(char *)hp->h_addr);
818 if (res == (uint32)-1) return(0);
823 /*******************************************************************
824 a convenient addition to interpret_addr()
825 ******************************************************************/
826 struct in_addr *interpret_addr2(char *str)
828 static struct in_addr ret;
829 uint32 a = interpret_addr(str);
834 /*******************************************************************
835 check if an IP is the 0.0.0.0
836 ******************************************************************/
837 BOOL zero_ip(struct in_addr ip)
840 putip((char *)&a,(char *)&ip);
845 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
846 /******************************************************************
847 Remove any mount options such as -rsize=2048,wsize=2048 etc.
848 Based on a fix from <Thomas.Hepper@icem.de>.
849 *******************************************************************/
851 static void strip_mount_options( pstring *str)
856 while(*p && !isspace(*p))
858 while(*p && isspace(*p))
864 pstrcpy(*str, tmp_str);
869 /*******************************************************************
870 Patch from jkf@soton.ac.uk
871 Split Luke's automount_server into YP lookup and string splitter
872 so can easily implement automount_path().
873 As we may end up doing both, cache the last YP result.
874 *******************************************************************/
876 #ifdef WITH_NISPLUS_HOME
877 static char *automount_lookup(char *user_name)
879 static fstring last_key = "";
880 static pstring last_value = "";
882 char *nis_map = (char *)lp_nis_home_map_name();
884 char nis_domain[NIS_MAXNAMELEN + 1];
885 char buffer[NIS_MAXATTRVAL + 1];
890 strncpy(nis_domain, (char *)nis_local_directory(), NIS_MAXNAMELEN);
891 nis_domain[NIS_MAXNAMELEN] = '\0';
893 DEBUG(5, ("NIS+ Domain: %s\n", nis_domain));
895 if (strcmp(user_name, last_key))
897 slprintf(buffer, sizeof(buffer)-1, "[%s=%s]%s.%s", "key", user_name, nis_map, nis_domain);
898 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
900 if (result = nis_list(buffer, RETURN_RESULT, NULL, NULL))
902 if (result->status != NIS_SUCCESS)
904 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
905 fstrcpy(last_key, ""); pstrcpy(last_value, "");
909 object = result->objects.objects_val;
910 if (object->zo_data.zo_type == ENTRY_OBJ)
912 entry = &object->zo_data.objdata_u.en_data;
913 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
914 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
916 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
917 pstring_sub(last_value, "&", user_name);
918 fstrcpy(last_key, user_name);
922 nis_freeresult(result);
925 strip_mount_options(&last_value);
927 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
930 #else /* WITH_NISPLUS_HOME */
931 static char *automount_lookup(char *user_name)
933 static fstring last_key = "";
934 static pstring last_value = "";
936 int nis_error; /* returned by yp all functions */
937 char *nis_result; /* yp_match inits this */
938 int nis_result_len; /* and set this */
939 char *nis_domain; /* yp_get_default_domain inits this */
940 char *nis_map = (char *)lp_nis_home_map_name();
942 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
943 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
947 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
949 if (!strcmp(user_name, last_key)) {
950 nis_result = last_value;
951 nis_result_len = strlen(last_value);
956 if ((nis_error = yp_match(nis_domain, nis_map,
957 user_name, strlen(user_name),
958 &nis_result, &nis_result_len)) == 0) {
959 if (!nis_error && nis_result_len >= sizeof(pstring)) {
960 nis_result_len = sizeof(pstring)-1;
962 fstrcpy(last_key, user_name);
963 strncpy(last_value, nis_result, nis_result_len);
964 last_value[nis_result_len] = '\0';
965 strip_mount_options(&last_value);
967 } else if(nis_error == YPERR_KEY) {
969 /* If Key lookup fails user home server is not in nis_map
970 use default information for server, and home directory */
972 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
973 user_name, nis_map));
974 DEBUG(3, ("using defaults for server and home directory\n"));
976 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
977 yperr_string(nis_error), user_name, nis_map));
982 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
985 #endif /* WITH_NISPLUS_HOME */
989 /*******************************************************************
990 are two IPs on the same subnet?
991 ********************************************************************/
992 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
994 uint32 net1,net2,nmask;
996 nmask = ntohl(mask.s_addr);
997 net1 = ntohl(ip1.s_addr);
998 net2 = ntohl(ip2.s_addr);
1000 return((net1 & nmask) == (net2 & nmask));
1004 /****************************************************************************
1005 a wrapper for gethostbyname() that tries with all lower and all upper case
1006 if the initial name fails
1007 ****************************************************************************/
1008 struct hostent *Get_Hostbyname(const char *name)
1010 char *name2 = strdup(name);
1011 struct hostent *ret;
1015 DEBUG(0,("Memory allocation error in Get_Hostbyname! panic\n"));
1021 * This next test is redundent and causes some systems (with
1022 * broken isalnum() calls) problems.
1027 if (!isalnum(*name2))
1034 ret = sys_gethostbyname(name2);
1041 /* try with all lowercase */
1043 ret = sys_gethostbyname(name2);
1050 /* try with all uppercase */
1052 ret = sys_gethostbyname(name2);
1059 /* nothing works :-( */
1065 /****************************************************************************
1066 check if a process exists. Does this work on all unixes?
1067 ****************************************************************************/
1069 BOOL process_exists(pid_t pid)
1071 return(kill(pid,0) == 0 || errno != ESRCH);
1075 /*******************************************************************
1076 Convert a uid into a user name.
1077 ********************************************************************/
1079 char *uidtoname(uid_t uid)
1081 static fstring name;
1082 struct passwd *pass;
1084 if (winbind_uidtoname(name, uid))
1087 pass = sys_getpwuid(uid);
1088 if (pass) return(pass->pw_name);
1089 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
1094 /*******************************************************************
1095 Convert a gid into a group name.
1096 ********************************************************************/
1098 char *gidtoname(gid_t gid)
1100 static fstring name;
1103 if (winbind_gidtoname(name, gid))
1106 grp = getgrgid(gid);
1107 if (grp) return(grp->gr_name);
1108 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1112 /*******************************************************************
1113 Convert a user name into a uid. If winbindd is present uses this.
1114 ********************************************************************/
1116 uid_t nametouid(char *name)
1118 struct passwd *pass;
1122 u = (uid_t)strtol(name, &p, 0);
1123 if (p != name) return u;
1125 if (winbind_nametouid(&u, name))
1128 pass = sys_getpwnam(name);
1129 if (pass) return(pass->pw_uid);
1133 /*******************************************************************
1134 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1135 is present does a shortcut lookup...
1136 ********************************************************************/
1138 gid_t nametogid(char *name)
1144 g = (gid_t)strtol(name, &p, 0);
1145 if (p != name) return g;
1147 if (winbind_nametogid(&g, name))
1150 grp = getgrnam(name);
1151 if (grp) return(grp->gr_gid);
1155 /*******************************************************************
1156 something really nasty happened - panic!
1157 ********************************************************************/
1158 void smb_panic(char *why)
1160 char *cmd = lp_panic_action();
1164 DEBUG(0,("PANIC: %s\n", why));
1170 /*******************************************************************
1171 a readdir wrapper which just returns the file name
1172 ********************************************************************/
1173 char *readdirname(DIR *p)
1175 SMB_STRUCT_DIRENT *ptr;
1178 if (!p) return(NULL);
1180 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1181 if (!ptr) return(NULL);
1183 dname = ptr->d_name;
1186 if (telldir(p) < 0) return(NULL);
1189 #ifdef HAVE_BROKEN_READDIR
1190 /* using /usr/ucb/cc is BAD */
1196 memcpy(buf, dname, NAMLEN(ptr)+1);
1203 /*******************************************************************
1204 Utility function used to decide if the last component
1205 of a path matches a (possibly wildcarded) entry in a namelist.
1206 ********************************************************************/
1208 BOOL is_in_path(char *name, name_compare_entry *namelist)
1210 pstring last_component;
1213 DEBUG(8, ("is_in_path: %s\n", name));
1215 /* if we have no list it's obviously not in the path */
1216 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1218 DEBUG(8,("is_in_path: no name list.\n"));
1222 /* Get the last component of the unix name. */
1223 p = strrchr(name, '/');
1224 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1225 last_component[sizeof(last_component)-1] = '\0';
1227 for(; namelist->name != NULL; namelist++)
1229 if(namelist->is_wild)
1231 if (mask_match(last_component, namelist->name, case_sensitive))
1233 DEBUG(8,("is_in_path: mask match succeeded\n"));
1239 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1240 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1242 DEBUG(8,("is_in_path: match succeeded\n"));
1247 DEBUG(8,("is_in_path: match not found\n"));
1252 /*******************************************************************
1253 Strip a '/' separated list into an array of
1254 name_compare_enties structures suitable for
1255 passing to is_in_path(). We do this for
1256 speed so we can pre-parse all the names in the list
1257 and don't do it for each call to is_in_path().
1258 namelist is modified here and is assumed to be
1259 a copy owned by the caller.
1260 We also check if the entry contains a wildcard to
1261 remove a potentially expensive call to mask_match
1263 ********************************************************************/
1265 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1268 char *nameptr = namelist;
1269 int num_entries = 0;
1272 (*ppname_array) = NULL;
1274 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1277 /* We need to make two passes over the string. The
1278 first to count the number of elements, the second
1283 if ( *nameptr == '/' )
1285 /* cope with multiple (useless) /s) */
1289 /* find the next / */
1290 name_end = strchr(nameptr, '/');
1292 /* oops - the last check for a / didn't find one. */
1293 if (name_end == NULL)
1296 /* next segment please */
1297 nameptr = name_end + 1;
1301 if(num_entries == 0)
1304 if(( (*ppname_array) = (name_compare_entry *)malloc(
1305 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1307 DEBUG(0,("set_namearray: malloc fail\n"));
1311 /* Now copy out the names */
1316 if ( *nameptr == '/' )
1318 /* cope with multiple (useless) /s) */
1322 /* find the next / */
1323 if ((name_end = strchr(nameptr, '/')) != NULL)
1328 /* oops - the last check for a / didn't find one. */
1329 if(name_end == NULL)
1332 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1333 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1335 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1339 /* next segment please */
1340 nameptr = name_end + 1;
1344 (*ppname_array)[i].name = NULL;
1349 /****************************************************************************
1350 routine to free a namearray.
1351 ****************************************************************************/
1353 void free_namearray(name_compare_entry *name_array)
1358 if(name_array->name != NULL)
1359 free(name_array->name);
1361 free((char *)name_array);
1364 /****************************************************************************
1365 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1366 is dealt with in posix.c
1367 ****************************************************************************/
1369 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1371 SMB_STRUCT_FLOCK lock;
1374 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1377 lock.l_whence = SEEK_SET;
1378 lock.l_start = offset;
1384 ret = fcntl(fd,op,&lock);
1387 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1390 if (op == SMB_F_GETLK)
1393 (lock.l_type != F_UNLCK) &&
1394 (lock.l_pid != 0) &&
1395 (lock.l_pid != sys_getpid()))
1397 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1401 /* it must be not locked or locked by me */
1405 /* a lock set or unset */
1408 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1409 (double)offset,(double)count,op,type,strerror(errno)));
1413 /* everything went OK */
1414 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1419 /*******************************************************************
1420 is the name specified one of my netbios names
1421 returns true is it is equal, false otherwise
1422 ********************************************************************/
1423 BOOL is_myname(char *s)
1428 for (n=0; my_netbios_names[n]; n++) {
1429 if (strequal(my_netbios_names[n], s))
1432 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1436 /*******************************************************************
1437 set the horrid remote_arch string based on an enum.
1438 ********************************************************************/
1439 void set_remote_arch(enum remote_arch_types type)
1441 extern fstring remote_arch;
1446 fstrcpy(remote_arch, "WfWg");
1449 fstrcpy(remote_arch, "OS2");
1452 fstrcpy(remote_arch, "Win95");
1455 fstrcpy(remote_arch, "WinNT");
1458 fstrcpy(remote_arch, "Win2K");
1461 fstrcpy(remote_arch,"Samba");
1464 ra_type = RA_UNKNOWN;
1465 fstrcpy(remote_arch, "UNKNOWN");
1470 /*******************************************************************
1471 Get the remote_arch type.
1472 ********************************************************************/
1473 enum remote_arch_types get_remote_arch(void)
1479 void out_ascii(FILE *f, unsigned char *buf,int len)
1484 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1488 void out_data(FILE *f,char *buf1,int len, int per_line)
1490 unsigned char *buf = (unsigned char *)buf1;
1497 fprintf(f, "[%03X] ",i);
1500 fprintf(f, "%02X ",(int)buf[i]);
1502 if (i%(per_line/2) == 0) fprintf(f, " ");
1503 if (i%per_line == 0)
1505 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1506 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1507 if (i<len) fprintf(f, "[%03X] ",i);
1510 if ((i%per_line) != 0)
1514 n = per_line - (i%per_line);
1516 if (n>(per_line/2)) fprintf(f, " ");
1521 n = MIN(per_line/2,i%per_line);
1522 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1523 n = (i%per_line) - n;
1524 if (n>0) out_ascii(f,&buf[i-n],n);
1529 void print_asc(int level, unsigned char *buf,int len)
1533 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1536 void dump_data(int level,char *buf1,int len)
1538 unsigned char *buf = (unsigned char *)buf1;
1542 DEBUG(level,("[%03X] ",i));
1544 DEBUG(level,("%02X ",(int)buf[i]));
1546 if (i%8 == 0) DEBUG(level,(" "));
1548 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1549 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1550 if (i<len) DEBUG(level,("[%03X] ",i));
1558 if (n>8) DEBUG(level,(" "));
1559 while (n--) DEBUG(level,(" "));
1562 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1564 if (n>0) print_asc(level,&buf[i-n],n);
1565 DEBUG(level,("\n"));
1569 char *tab_depth(int depth)
1571 static pstring spaces;
1572 memset(spaces, ' ', depth * 4);
1573 spaces[depth * 4] = 0;
1577 /*****************************************************************************
1578 * Provide a checksum on a string
1580 * Input: s - the null-terminated character string for which the checksum
1581 * will be calculated.
1583 * Output: The checksum value calculated for s.
1585 * ****************************************************************************
1587 int str_checksum(const char *s)
1595 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1600 } /* str_checksum */
1604 /*****************************************************************
1605 zero a memory area then free it. Used to catch bugs faster
1606 *****************************************************************/
1607 void zero_free(void *p, size_t size)
1614 /*****************************************************************
1615 set our open file limit to a requested max and return the limit
1616 *****************************************************************/
1617 int set_maxfiles(int requested_max)
1619 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1621 int saved_current_limit;
1623 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1624 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1627 return requested_max;
1631 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1632 * account for the extra fd we need
1633 * as well as the log files and standard
1634 * handles etc. Save the limit we want to set in case
1635 * we are running on an OS that doesn't support this limit (AIX)
1636 * which always returns RLIM_INFINITY for rlp.rlim_max.
1639 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1641 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1642 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1643 (int)rlp.rlim_cur, strerror(errno) ));
1645 return saved_current_limit;
1648 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1649 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1652 return saved_current_limit;
1655 #if defined(RLIM_INFINITY)
1656 if(rlp.rlim_cur == RLIM_INFINITY)
1657 return saved_current_limit;
1660 if((int)rlp.rlim_cur > saved_current_limit)
1661 return saved_current_limit;
1663 return rlp.rlim_cur;
1664 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1666 * No way to know - just guess...
1668 return requested_max;
1672 /*****************************************************************
1673 splits out the start of the key (HKLM or HKU) and the rest of the key
1674 *****************************************************************/
1675 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1679 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1686 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1688 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1690 (*reg_type) = HKEY_LOCAL_MACHINE;
1692 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1694 (*reg_type) = HKEY_USERS;
1698 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1702 if (next_token(NULL, tmp, "\n\r", sizeof(tmp)))
1704 fstrcpy(key_name, tmp);
1711 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1717 /*****************************************************************
1718 like mktemp() but make sure that no % characters are used
1719 % characters are bad for us because of the macro subs
1720 *****************************************************************/
1721 char *smbd_mktemp(char *template)
1723 char *p = mktemp(template);
1727 if (!p) return NULL;
1729 while ((p2=strchr(p,'%'))) {
1731 while (sys_stat(p,&st) == 0 && p2[0] < 'Z') {
1732 /* damn, it exists */
1736 /* oh well ... better return something */
1746 /*****************************************************************
1747 like strdup but for memory
1748 *****************************************************************/
1749 void *memdup(void *p, size_t size)
1752 if (size == 0) return NULL;
1754 if (!p2) return NULL;
1755 memcpy(p2, p, size);
1759 /*****************************************************************
1760 get local hostname and cache result
1761 *****************************************************************/
1762 char *myhostname(void)
1772 /*****************************************************************
1773 a useful function for returning a path in the Samba lock directory
1774 *****************************************************************/
1775 char *lock_path(char *name)
1777 static pstring fname;
1779 pstrcpy(fname,lp_lockdir());
1780 trim_string(fname,"","/");
1782 if (!directory_exist(fname,NULL)) {
1787 pstrcat(fname,name);
1792 /*******************************************************************
1793 Given a filename - get its directory name
1794 NB: Returned in static storage. Caveats:
1795 o Not safe in thread environment.
1796 o Caller must not free.
1797 o If caller wishes to preserve, they should copy.
1798 ********************************************************************/
1800 char *parent_dirname(const char *path)
1802 static pstring dirpath;
1808 pstrcpy(dirpath, path);
1809 p = strrchr(dirpath, '/'); /* Find final '/', if any */
1811 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1814 ++p; /* For root "/", leave "/" in place */
1821 /*******************************************************************
1822 determine if a pattern contains any Microsoft wildcard characters
1823 *******************************************************************/
1824 BOOL ms_has_wild(char *s)
1827 while ((c = *s++)) {
1841 /*******************************************************************
1842 a wrapper that handles case sensitivity and the special handling
1844 *******************************************************************/
1845 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1848 if (strcmp(string,"..") == 0) string = ".";
1849 if (strcmp(pattern,".") == 0) return False;
1851 if (is_case_sensitive) {
1852 return ms_fnmatch(pattern, string) == 0;
1855 fstrcpy(p2, pattern);
1856 fstrcpy(s2, string);
1859 return ms_fnmatch(p2, s2) == 0;
1866 /*******************************************************************
1867 This routine is a trick to immediately catch errors when debugging
1868 with insure. A xterm with a gdb is popped up when insure catches
1869 a error. It is Linux specific.
1870 ********************************************************************/
1871 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
1876 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'";
1878 slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
1879 pstring_sub(cmd, "%d", pidstr);
1883 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
1884 fn = dlsym(h, "_Insure_trap_error");
1887 ret = fn(a1, a2, a3, a4, a5, a6);