2 Unix SMB/CIFS implementation.
3 Utility functions for Samba
4 Copyright (C) Andrew Tridgell 1992-1999
5 Copyright (C) Jelmer Vernooij 2005
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 3 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, see <http://www.gnu.org/licenses/>.
21 #ifndef _SAMBA_UTIL_H_
22 #define _SAMBA_UTIL_H_
24 #include "lib/util/charset/charset.h"
25 #include "lib/util/attr.h"
35 * @brief Helpful macros
40 extern const char *panic_action;
42 #include "lib/util/time.h"
43 #include "lib/util/data_blob.h"
44 #include "lib/util/xfile.h"
45 #include "lib/util/byteorder.h"
46 #include "lib/util/talloc_stack.h"
51 #define SMB_ASSERT(b) \
54 DEBUG(0,("PANIC: assert failed at %s(%d): %s\n", \
55 __FILE__, __LINE__, #b)); \
56 smb_panic("assert failed: " #b); \
61 #define ABS(a) ((a)>0?(a):(-(a)))
64 #include "lib/util/memory.h"
66 #include "../libcli/util/ntstatus.h"
67 #include "lib/util/string_wrappers.h"
70 * Write backtrace to debug log
72 _PUBLIC_ void call_backtrace(void);
75 Something really nasty happened - panic !
77 typedef void (*smb_panic_handler_t)(const char *why);
79 _PUBLIC_ void fault_configure(smb_panic_handler_t panic_handler);
80 _PUBLIC_ void fault_setup(void);
81 _PUBLIC_ void fault_setup_disable(void);
82 _PUBLIC_ void dump_core_setup(const char *progname, const char *logfile);
83 _PUBLIC_ _NORETURN_ void smb_panic(const char *reason);
87 register a fault handler.
88 Should only be called once in the execution of smbd.
90 _PUBLIC_ bool register_fault_handler(const char *name, void (*fault_handler)(int sig));
92 #include "lib/util/signal.h" /* Avoid /usr/include/signal.h */
96 _PUBLIC_ int sys_getnameinfo(const struct sockaddr *psa,
104 /* The following definitions come from lib/util/genrand.c */
106 Copy any user given reseed data.
108 _PUBLIC_ void set_rand_reseed_callback(void (*fn)(void *, int *), void *);
111 * Tell the random number generator it needs to reseed.
113 _PUBLIC_ void set_need_random_reseed(void);
116 Interface to the (hopefully) good crypto random number generator.
117 Will use our internal PRNG if more than 40 bytes of random generation
118 has been requested, otherwise tries to read from /dev/random
120 _PUBLIC_ void generate_random_buffer(uint8_t *out, int len);
123 Interface to the (hopefully) good crypto random number generator.
124 Will always use /dev/urandom if available.
126 _PUBLIC_ void generate_secret_buffer(uint8_t *out, int len);
129 generate a single random uint32_t
131 _PUBLIC_ uint32_t generate_random(void);
134 very basic password quality checker
136 _PUBLIC_ bool check_password_quality(const char *s);
139 * Generate a random text password.
141 _PUBLIC_ char *generate_random_password(TALLOC_CTX *mem_ctx, size_t min, size_t max);
144 Use the random number generator to generate a random string.
146 _PUBLIC_ char *generate_random_str_list(TALLOC_CTX *mem_ctx, size_t len, const char *list);
149 * Generate a random text string consisting of the specified length.
150 * The returned string will be allocated.
152 * Characters used are: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+_-#.,
154 _PUBLIC_ char *generate_random_str(TALLOC_CTX *mem_ctx, size_t len);
157 * Generate an array of unique text strings all of the same length.
158 * The returned strings will be allocated.
159 * Returns NULL if the number of unique combinations cannot be created.
161 * Characters used are: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+_-#.,
163 _PUBLIC_ char** generate_unique_strs(TALLOC_CTX *mem_ctx, size_t len,
166 /* The following definitions come from lib/util/dprintf.c */
168 _PUBLIC_ int d_fprintf(FILE *f, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
169 _PUBLIC_ int d_printf(const char *format, ...) PRINTF_ATTRIBUTE(1,2);
170 _PUBLIC_ void display_set_stderr(void);
172 /* The following definitions come from lib/util/util_str.c */
174 bool next_token_talloc(TALLOC_CTX *ctx,
180 * Get the next token from a string, return false if none found. Handles
181 * double-quotes. This version does not trim leading separator characters
182 * before looking for a token.
184 bool next_token_no_ltrim_talloc(TALLOC_CTX *ctx,
191 Trim the specified elements off the front and back of a string.
193 _PUBLIC_ bool trim_string(char *s, const char *front, const char *back);
196 Find the number of 'c' chars in a string
198 _PUBLIC_ _PURE_ size_t count_chars(const char *s, char c);
201 Routine to get hex characters and turn them into a 16 byte array.
202 the array can be variable length, and any non-hex-numeric
203 characters are skipped. "0xnn" or "0Xnn" is specially catered
206 valid examples: "0A5D15"; "0x15, 0x49, 0xa2"; "59\ta9\te3\n"
210 _PUBLIC_ size_t strhex_to_str(char *p, size_t p_len, const char *strhex, size_t strhex_len);
213 * Parse a hex string and return a data blob.
215 _PUBLIC_ _PURE_ DATA_BLOB strhex_to_data_blob(TALLOC_CTX *mem_ctx, const char *strhex) ;
218 * Print a buf in hex. Assumes dst is at least (srclen*2)+1 large.
220 _PUBLIC_ void hex_encode_buf(char *dst, const uint8_t *src, size_t srclen);
223 * Routine to print a buffer as HEX digits, into an allocated string.
225 _PUBLIC_ void hex_encode(const unsigned char *buff_in, size_t len, char **out_hex_buffer);
228 * talloc version of hex_encode()
230 _PUBLIC_ char *hex_encode_talloc(TALLOC_CTX *mem_ctx, const unsigned char *buff_in, size_t len);
232 #include "substitute.h"
235 Unescape a URL encoded string, in place.
237 _PUBLIC_ void rfc1738_unescape(char *buf);
242 * Returns a static buffer that contains the RFC
243 * 1738 compliant, escaped version of the given url. (escapes unsafe and % characters)
245 _PUBLIC_ char *rfc1738_escape(TALLOC_CTX *mem_ctx, const char *url);
248 * rfc1738_escape_unescaped
250 * Returns a static buffer that contains
251 * the RFC 1738 compliant, escaped version of the given url (escapes unsafe chars only)
253 _PUBLIC_ char *rfc1738_escape_unescaped(TALLOC_CTX *mem_ctx, const char *url);
256 * rfc1738_escape_part
257 * Returns a static buffer that contains the RFC
258 * 1738 compliant, escaped version of the given url segment. (escapes
259 * unsafe, reserved and % chars) It would mangle the :// in http://,
260 * and mangle paths (because of /).
262 _PUBLIC_ char *rfc1738_escape_part(TALLOC_CTX *mem_ctx, const char *url);
265 * Add a string to an array of strings.
267 * num should be a pointer to an integer that holds the current
268 * number of elements in strings. It will be updated by this function.
270 _PUBLIC_ bool add_string_to_array(TALLOC_CTX *mem_ctx,
271 const char *str, const char ***strings, int *num);
274 varient of strcmp() that handles NULL ptrs
276 _PUBLIC_ int strcmp_safe(const char *s1, const char *s2);
279 return the number of bytes occupied by a buffer in ASCII format
280 the result includes the null termination
283 _PUBLIC_ size_t ascii_len_n(const char *src, size_t n);
286 Set a boolean variable from the text value stored in the passed string.
287 Returns true in success, false if the passed string does not correctly
290 _PUBLIC_ bool set_boolean(const char *boolean_string, bool *boolean);
293 * Parse a string containing a boolean value.
295 * val will be set to the read value.
297 * @retval true if a boolean value was parsed, false otherwise.
299 _PUBLIC_ bool conv_str_bool(const char * str, bool * val);
302 * Convert a size specification like 16K into an integral number of bytes.
304 _PUBLIC_ bool conv_str_size_error(const char * str, uint64_t * val);
307 * Parse a uint64_t value from a string
309 * val will be set to the value read.
311 * @retval true if parsing was successful, false otherwise
313 _PUBLIC_ bool conv_str_u64(const char * str, uint64_t * val);
316 return the number of bytes occupied by a buffer in CH_UTF16 format
317 the result includes the null termination
319 _PUBLIC_ size_t utf16_len(const void *buf);
322 return the number of bytes occupied by a buffer in CH_UTF16 format
323 the result includes the null termination
326 _PUBLIC_ size_t utf16_len_n(const void *src, size_t n);
327 _PUBLIC_ size_t ucs2_align(const void *base_ptr, const void *p, int flags);
330 Do a case-insensitive, whitespace-ignoring string compare.
332 _PUBLIC_ int strwicmp(const char *psz1, const char *psz2);
337 _PUBLIC_ void string_replace(char *s, char oldc, char newc);
340 Base64 decode a string, place into a data blob. Caller to data_blob_free() the result.
342 _PUBLIC_ DATA_BLOB base64_decode_data_blob_talloc(TALLOC_CTX *mem_ctx, const char *s);
345 Base64 decode a string, place into a data blob on NULL context.
346 Caller to data_blob_free() the result.
348 _PUBLIC_ DATA_BLOB base64_decode_data_blob(const char *s);
352 Base64 decode a string, inplace
354 _PUBLIC_ void base64_decode_inplace(char *s);
356 Base64 encode a binary data blob into a string
358 _PUBLIC_ char *base64_encode_data_blob(TALLOC_CTX *mem_ctx, DATA_BLOB data);
363 * @note The comparison is case-insensitive.
365 _PUBLIC_ bool strequal(const char *s1, const char *s2);
367 /* The following definitions come from lib/util/util_strlist.c */
369 /* separators for lists */
371 #define LIST_SEP " \t,\n\r"
375 build an empty (only NULL terminated) list of strings (for expansion with str_list_add() etc)
377 _PUBLIC_ char **str_list_make_empty(TALLOC_CTX *mem_ctx);
380 place the only element 'entry' into a new, NULL terminated string list
382 _PUBLIC_ char **str_list_make_single(TALLOC_CTX *mem_ctx,
386 build a null terminated list of strings from a input string and a
387 separator list. The separator list must contain characters less than
388 or equal to 0x2f for this to work correctly on multi-byte strings
390 _PUBLIC_ char **str_list_make(TALLOC_CTX *mem_ctx, const char *string,
394 * build a null terminated list of strings from an argv-like input string
395 * Entries are separated by spaces and can be enclosed by quotes.
396 * Does NOT support escaping
398 _PUBLIC_ char **str_list_make_shell(TALLOC_CTX *mem_ctx, const char *string, const char *sep);
401 * join a list back to one string
403 _PUBLIC_ char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char separator);
405 /** join a list back to one (shell-like) string; entries
406 * separated by spaces, using quotes where necessary */
407 _PUBLIC_ char *str_list_join_shell(TALLOC_CTX *mem_ctx, const char **list, char sep);
410 return the number of elements in a string list
412 _PUBLIC_ size_t str_list_length(const char * const *list);
417 _PUBLIC_ char **str_list_copy(TALLOC_CTX *mem_ctx, const char **list);
420 Return true if all the elements of the list match exactly.
422 _PUBLIC_ bool str_list_equal(const char * const *list1, const char * const *list2);
425 add an entry to a string list
427 _PUBLIC_ const char **str_list_add(const char **list, const char *s);
430 remove an entry from a string list
432 _PUBLIC_ void str_list_remove(const char **list, const char *s);
435 return true if a string is in a list
437 _PUBLIC_ bool str_list_check(const char **list, const char *s);
440 return true if a string is in a list, case insensitively
442 _PUBLIC_ bool str_list_check_ci(const char **list, const char *s);
444 append one list to another - expanding list1
446 _PUBLIC_ const char **str_list_append(const char **list1,
447 const char * const *list2);
450 remove duplicate elements from a list
452 _PUBLIC_ const char **str_list_unique(const char **list);
455 very useful when debugging complex list related code
457 _PUBLIC_ void str_list_show(const char **list);
461 append one list to another - expanding list1
462 this assumes the elements of list2 are const pointers, so we can re-use them
464 _PUBLIC_ const char **str_list_append_const(const char **list1,
468 add an entry to a string list
469 this assumes s will not change
471 _PUBLIC_ const char **str_list_add_const(const char **list, const char *s);
475 this assumes list will not change
477 _PUBLIC_ const char **str_list_copy_const(TALLOC_CTX *mem_ctx,
481 * Needed for making an "unconst" list "const"
483 _PUBLIC_ const char **const_str_list(char **list);
486 * str_list_make, v3 version. The v4 version does not
487 * look at quoted strings with embedded blanks, so
488 * do NOT merge this function please!
490 char **str_list_make_v3(TALLOC_CTX *mem_ctx, const char *string,
494 /* The following definitions come from lib/util/util_file.c */
498 read a line from a file with possible \ continuation chars.
499 Blanks at the start or end of a line are stripped.
500 The string will be allocated if s2 is NULL
502 _PUBLIC_ char *fgets_slash(char *s2,int maxlen,XFILE *f);
505 * Read one line (data until next newline or eof) and allocate it
507 _PUBLIC_ char *afdgets(int fd, TALLOC_CTX *mem_ctx, size_t hint);
510 load a file into memory from a fd.
512 _PUBLIC_ char *fd_load(int fd, size_t *size, size_t maxsize, TALLOC_CTX *mem_ctx);
515 char **file_lines_parse(char *p, size_t size, int *numlines, TALLOC_CTX *mem_ctx);
518 load a file into memory
520 _PUBLIC_ char *file_load(const char *fname, size_t *size, size_t maxsize, TALLOC_CTX *mem_ctx);
523 mmap (if possible) or read a file
525 _PUBLIC_ void *map_file(const char *fname, size_t size);
528 load a file into memory and return an array of pointers to lines in the file
529 must be freed with talloc_free().
531 _PUBLIC_ char **file_lines_load(const char *fname, int *numlines, size_t maxsize, TALLOC_CTX *mem_ctx);
534 load a fd into memory and return an array of pointers to lines in the file
535 must be freed with talloc_free(). If convert is true calls unix_to_dos on
538 _PUBLIC_ char **fd_lines_load(int fd, int *numlines, size_t maxsize, TALLOC_CTX *mem_ctx);
540 _PUBLIC_ bool file_save_mode(const char *fname, const void *packet,
541 size_t length, mode_t mode);
543 save a lump of data into a file. Mostly used for debugging
545 _PUBLIC_ bool file_save(const char *fname, const void *packet, size_t length);
546 _PUBLIC_ int vfdprintf(int fd, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
547 _PUBLIC_ int fdprintf(int fd, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
550 compare two files, return true if the two files have the same content
552 bool file_compare(const char *path1, const char *path2);
554 /* The following definitions come from lib/util/util.c */
558 Find a suitable temporary directory. The result should be copied immediately
559 as it may be overwritten by a subsequent call.
561 _PUBLIC_ const char *tmpdir(void);
564 * Creates and immediately unlinks a file. Returns open file descriptor.
566 _PUBLIC_ int create_unlink_tmp(const char *dir);
569 Check if a file exists - call vfs_file_exist for samba files.
571 _PUBLIC_ bool file_exist(const char *fname);
574 Check a files mod time.
576 _PUBLIC_ time_t file_modtime(const char *fname);
579 Check if a directory exists.
581 _PUBLIC_ bool directory_exist(const char *dname);
584 Check file permissions.
586 _PUBLIC_ bool file_check_permissions(const char *fname,
592 * Try to create the specified directory if it didn't exist.
594 * @retval true if the directory already existed and has the right permissions
595 * or was successfully created.
597 _PUBLIC_ bool directory_create_or_exist(const char *dname, mode_t dir_perms);
599 _PUBLIC_ bool directory_create_or_exist_strict(const char *dname,
603 #include "blocking.h"
606 Sleep for a specified number of milliseconds.
608 _PUBLIC_ void smb_msleep(unsigned int t);
611 Get my own name, return in talloc'ed storage.
613 _PUBLIC_ char* get_myname(TALLOC_CTX *mem_ctx);
616 Check if a process exists. Does this work on all unixes?
618 _PUBLIC_ bool process_exists_by_pid(pid_t pid);
621 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
622 is dealt with in posix.c
624 _PUBLIC_ bool fcntl_lock(int fd, int op, off_t offset, off_t count, int type);
627 * Write dump of binary data to a callback
629 void dump_data_cb(const uint8_t *buf, int len,
630 bool omit_zero_bytes,
631 void (*cb)(const char *buf, void *private_data),
635 * Write dump of binary data to a FILE
637 void dump_data_file(const uint8_t *buf, int len, bool omit_zero_bytes,
641 * Write dump of binary data to the log file.
643 * The data is only written if the log level is at least level.
645 _PUBLIC_ void dump_data(int level, const uint8_t *buf,int len);
648 * Write dump of binary data to the log file.
650 * The data is only written if the log level is at least level for
651 * debug class dbgc_class.
653 _PUBLIC_ void dump_data_dbgc(int dbgc_class, int level, const uint8_t *buf, int len);
656 * Write dump of binary data to the log file.
658 * The data is only written if the log level is at least level.
659 * 16 zero bytes in a row are omitted
661 _PUBLIC_ void dump_data_skip_zeros(int level, const uint8_t *buf, int len);
664 malloc that aborts with smb_panic on fail or zero size.
666 _PUBLIC_ void *smb_xmalloc(size_t size);
669 Memdup with smb_panic on fail.
671 _PUBLIC_ void *smb_xmemdup(const void *p, size_t size);
674 strdup that aborts on malloc fail.
676 _PUBLIC_ char *smb_xstrdup(const char *s);
678 char *smb_xstrndup(const char *s, size_t n);
681 Like strdup but for memory.
683 _PUBLIC_ void *smb_memdup(const void *p, size_t size);
686 * Write a password to the log file.
688 * @note Only actually does something if DEBUG_PASSWORD was defined during
691 _PUBLIC_ void dump_data_pw(const char *msg, const uint8_t * data, size_t len);
694 * see if a range of memory is all zero. A NULL pointer is considered
697 _PUBLIC_ bool all_zero(const uint8_t *ptr, size_t size);
700 realloc an array, checking for integer overflow in the array size
702 _PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count, bool free_on_fail);
704 void *malloc_array(size_t el_size, unsigned int count);
706 void *memalign_array(size_t el_size, size_t align, unsigned int count);
708 void *calloc_array(size_t size, size_t nmemb);
710 /* The following definitions come from lib/util/fsusage.c */
714 * Retrieve amount of free disk space.
715 * this does all of the system specific guff to get the free disk space.
716 * It is derived from code in the GNU fileutils package, but has been
717 * considerably mangled for use here
719 * results are returned in *dfree and *dsize, in 512 byte units
721 _PUBLIC_ int sys_fsusage(const char *path, uint64_t *dfree, uint64_t *dsize);
723 /* The following definitions come from lib/util/ms_fnmatch.c */
728 * @brief MS-style Filename matching
731 int ms_fnmatch_protocol(const char *pattern, const char *string, int protocol);
733 /** a generic fnmatch function - uses for non-CIFS pattern matching */
734 int gen_fnmatch(const char *pattern, const char *string);
737 #include "idtree_random.h"
740 Close the low 3 fd's and open dev/null in their place
742 _PUBLIC_ void close_low_fds(bool stdin_too, bool stdout_too, bool stderr_too);
745 Become a daemon, discarding the controlling terminal.
747 _PUBLIC_ void become_daemon(bool do_fork, bool no_process_group, bool log_stdout);
750 Exit daemon and print error message to the log at level 0
751 Optionally report failure to systemd if systemd integration is enabled
753 _PUBLIC_ void exit_daemon(const char *msg, int error);
756 Report that the daemon is ready to serve connections to the log at level 0
757 Optionally report status to systemd if systemd integration is enabled
759 _PUBLIC_ void daemon_ready(const char *daemon);
762 * Report the daemon status. For example if it is not ready to serve connections
763 * and is waiting for some event to happen.
765 _PUBLIC_ void daemon_status(const char *name, const char *msg);
768 * @brief Get a password from the console.
770 * You should make sure that the buffer is an empty string!
772 * You can also use this function to ask for a username. Then you can fill the
773 * buffer with the username and it is shows to the users. If the users just
774 * presses enter the buffer will be untouched.
777 * char username[128];
779 * snprintf(username, sizeof(username), "john");
781 * smb_getpass("Username:", username, sizeof(username), 1, 0);
784 * The prompt will look like this:
788 * If you press enter then john is used as the username, or you can type it in
791 * @param[in] prompt The prompt to show to ask for the password.
793 * @param[out] buf The buffer the password should be stored. It NEEDS to be
794 * empty or filled out.
796 * @param[in] len The length of the buffer.
798 * @param[in] echo Should we echo what you type.
800 * @param[in] verify Should we ask for the password twice.
802 * @return 0 on success, -1 on error.
804 _PUBLIC_ int samba_getpass(const char *prompt, char *buf, size_t len,
805 bool echo, bool verify);
808 * Load a ini-style file.
810 bool pm_process( const char *fileName,
811 bool (*sfunc)(const char *, void *),
812 bool (*pfunc)(const char *, const char *, void *),
815 bool unmap_file(void *start, size_t size);
817 void print_asc(int level, const uint8_t *buf,int len);
818 void print_asc_cb(const uint8_t *buf, int len,
819 void (*cb)(const char *buf, void *private_data),
823 * Add an id to an array of ids.
825 * num should be a pointer to an integer that holds the current
826 * number of elements in ids. It will be updated by this function.
829 bool add_uid_to_array_unique(TALLOC_CTX *mem_ctx, uid_t uid,
830 uid_t **uids, uint32_t *num_uids);
831 bool add_gid_to_array_unique(TALLOC_CTX *mem_ctx, gid_t gid,
832 gid_t **gids, uint32_t *num_gids);
835 * Allocate anonymous shared memory of the given size
837 void *anonymous_shared_allocate(size_t bufsz);
838 void *anonymous_shared_resize(void *ptr, size_t new_size, bool maymove);
839 void anonymous_shared_free(void *ptr);
842 run a command as a child process, with a timeout.
844 any stdout/stderr from the child will appear in the Samba logs with
845 the specified log levels
847 If callback is set then the callback is called on completion
848 with the return code from the command
850 struct tevent_context;
852 struct tevent_req *samba_runcmd_send(TALLOC_CTX *mem_ctx,
853 struct tevent_context *ev,
854 struct timeval endtime,
855 int stdout_log_level,
856 int stderr_log_level,
857 const char * const *argv0, ...);
858 int samba_runcmd_recv(struct tevent_req *req, int *perrno);
861 void samba_start_debugger(void);
865 * @brief Returns an absolute path to a file in the Samba modules directory.
867 * @param name File to find, relative to MODULESDIR.
869 * @retval Pointer to a string containing the full path.
871 char *modules_path(TALLOC_CTX *mem_ctx, const char *name);
874 * @brief Returns an absolute path to a file in the Samba data directory.
876 * @param name File to find, relative to CODEPAGEDIR.
878 * @retval Pointer to a talloc'ed string containing the full path.
880 char *data_path(TALLOC_CTX *mem_ctx, const char *name);
883 * @brief Returns the platform specific shared library extension.
885 * @retval Pointer to a const char * containing the extension.
887 const char *shlib_ext(void);
891 struct server_id_buf { char buf[48]; }; /* probably a bit too large ... */
892 char *server_id_str_buf(struct server_id id, struct server_id_buf *dst);
894 bool server_id_same_process(const struct server_id *p1,
895 const struct server_id *p2);
896 bool server_id_equal(const struct server_id *p1, const struct server_id *p2);
897 char *server_id_str(TALLOC_CTX *mem_ctx, const struct server_id *id);
898 struct server_id server_id_from_string(uint32_t local_vnn,
899 const char *pid_string);
902 * Set the serverid to the special value that represents a disconnected
903 * client for (e.g.) durable handles.
905 void server_id_set_disconnected(struct server_id *id);
908 * check whether a serverid is the special placeholder for
909 * a disconnected client
911 bool server_id_is_disconnected(const struct server_id *id);
914 * Samba code should use samba_tevent_context_init() instead of
915 * tevent_context_init() in order to get the debug output.
917 struct tevent_context *samba_tevent_context_init(TALLOC_CTX *mem_ctx);
920 * if same samba code needs to use a specific tevent backend
921 * it can use something like this:
923 * samba_tevent_set_debug(ev, "pysmb_tevent");
925 void samba_tevent_set_debug(struct tevent_context *ev, const char *name);
927 #endif /* _SAMBA_UTIL_H_ */