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author | Jeremy Allison <jra@samba.org> | 2001-12-04 18:37:14 +0000 |
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committer | Jeremy Allison <jra@samba.org> | 2001-12-04 18:37:14 +0000 |
commit | 20fdf28178de4af6e99f006463f554dfd2841b36 (patch) | |
tree | 2697a292f83b46b042e54d03b6b668437da7d351 /source3/tdb | |
parent | 84c19504d0268d0728bf0733049950bfc009aa67 (diff) | |
download | samba-20fdf28178de4af6e99f006463f554dfd2841b36.tar.gz samba-20fdf28178de4af6e99f006463f554dfd2841b36.tar.bz2 samba-20fdf28178de4af6e99f006463f554dfd2841b36.zip |
Tidup.
Jeremy.
(This used to be commit 837f2b961b1e7dcd6998f36d58d2059290e89e18)
Diffstat (limited to 'source3/tdb')
-rw-r--r-- | source3/tdb/tdbutil.c | 123 |
1 files changed, 80 insertions, 43 deletions
diff --git a/source3/tdb/tdbutil.c b/source3/tdb/tdbutil.c index 68a47a199d..d256db3bb7 100644 --- a/source3/tdb/tdbutil.c +++ b/source3/tdb/tdbutil.c @@ -24,7 +24,10 @@ /* these are little tdb utility functions that are meant to make dealing with a tdb database a little less cumbersome in Samba */ -/* lock a chain by string */ +/**************************************************************************** + Lock a chain by string. +****************************************************************************/ + int tdb_lock_bystring(TDB_CONTEXT *tdb, char *keyval) { TDB_DATA key; @@ -35,7 +38,10 @@ int tdb_lock_bystring(TDB_CONTEXT *tdb, char *keyval) return tdb_chainlock(tdb, key); } -/* unlock a chain by string */ +/**************************************************************************** + Unlock a chain by string. +****************************************************************************/ + void tdb_unlock_bystring(TDB_CONTEXT *tdb, char *keyval) { TDB_DATA key; @@ -46,7 +52,10 @@ void tdb_unlock_bystring(TDB_CONTEXT *tdb, char *keyval) tdb_chainunlock(tdb, key); } -/* fetch a value by a arbitrary blob key, return -1 if not found */ +/**************************************************************************** + Fetch a value by a arbitrary blob key, return -1 if not found. +****************************************************************************/ + int tdb_fetch_int_byblob(TDB_CONTEXT *tdb, char *keyval, size_t len) { TDB_DATA key, data; @@ -55,20 +64,27 @@ int tdb_fetch_int_byblob(TDB_CONTEXT *tdb, char *keyval, size_t len) key.dptr = keyval; key.dsize = len; data = tdb_fetch(tdb, key); - if (!data.dptr || data.dsize != sizeof(int)) return -1; + if (!data.dptr || data.dsize != sizeof(int)) + return -1; memcpy(&ret, data.dptr, sizeof(int)); free(data.dptr); return ret; } -/* fetch a value by string key, return -1 if not found */ +/**************************************************************************** + Fetch a value by string key, return -1 if not found. +****************************************************************************/ + int tdb_fetch_int(TDB_CONTEXT *tdb, char *keystr) { return tdb_fetch_int_byblob(tdb, keystr, strlen(keystr) + 1); } -/* store a value by an arbitary blob key, return 0 on success, -1 on failure */ +/**************************************************************************** + Store a value by an arbitary blob key, return 0 on success, -1 on failure. +****************************************************************************/ + int tdb_store_int_byblob(TDB_CONTEXT *tdb, char *keystr, size_t len, int v) { TDB_DATA key, data; @@ -81,14 +97,20 @@ int tdb_store_int_byblob(TDB_CONTEXT *tdb, char *keystr, size_t len, int v) return tdb_store(tdb, key, data, TDB_REPLACE); } -/* store a value by string key, return 0 on success, -1 on failure */ +/**************************************************************************** + Store a value by string key, return 0 on success, -1 on failure. +****************************************************************************/ + int tdb_store_int(TDB_CONTEXT *tdb, char *keystr, int v) { return tdb_store_int_byblob(tdb, keystr, strlen(keystr) + 1, v); } -/* Store a buffer by a null terminated string key. Return 0 on success, -1 - on failure */ +/**************************************************************************** + Store a buffer by a null terminated string key. Return 0 on success, -1 + on failure. +****************************************************************************/ + int tdb_store_by_string(TDB_CONTEXT *tdb, char *keystr, void *buffer, int len) { TDB_DATA key, data; @@ -102,8 +124,10 @@ int tdb_store_by_string(TDB_CONTEXT *tdb, char *keystr, void *buffer, int len) return tdb_store(tdb, key, data, TDB_REPLACE); } -/* Fetch a buffer using a null terminated string key. Don't forget to call - free() on the result dptr. */ +/**************************************************************************** + Fetch a buffer using a null terminated string key. Don't forget to call + free() on the result dptr. +****************************************************************************/ TDB_DATA tdb_fetch_by_string(TDB_CONTEXT *tdb, char *keystr) { @@ -115,7 +139,9 @@ TDB_DATA tdb_fetch_by_string(TDB_CONTEXT *tdb, char *keystr) return tdb_fetch(tdb, key); } -/* Atomic integer change. Returns old value. To create, set initial value in *oldval. */ +/**************************************************************************** + Atomic integer change. Returns old value. To create, set initial value in *oldval. +****************************************************************************/ int tdb_change_int_atomic(TDB_CONTEXT *tdb, char *keystr, int *oldval, int change_val) { @@ -147,8 +173,11 @@ int tdb_change_int_atomic(TDB_CONTEXT *tdb, char *keystr, int *oldval, int chang return ret; } -/* useful pair of routines for packing/unpacking data consisting of - integers and strings */ +/**************************************************************************** + Useful pair of routines for packing/unpacking data consisting of + integers and strings. +****************************************************************************/ + size_t tdb_pack(char *buf, int bufsize, char *fmt, ...) { va_list ap; @@ -170,40 +199,35 @@ size_t tdb_pack(char *buf, int bufsize, char *fmt, ...) case 'w': len = 2; w = (uint16)va_arg(ap, int); - if (bufsize >= len) { + if (bufsize >= len) SSVAL(buf, 0, w); - } break; case 'd': len = 4; d = va_arg(ap, uint32); - if (bufsize >= len) { + if (bufsize >= len) SIVAL(buf, 0, d); - } break; case 'p': len = 4; p = va_arg(ap, void *); d = p?1:0; - if (bufsize >= len) { + if (bufsize >= len) SIVAL(buf, 0, d); - } break; case 'P': s = va_arg(ap,char *); w = strlen(s); len = w + 1; - if (bufsize >= len) { + if (bufsize >= len) memcpy(buf, s, len); - } break; case 'f': s = va_arg(ap,char *); w = strlen(s); len = w + 1; - if (bufsize >= len) { + if (bufsize >= len) memcpy(buf, s, len); - } break; case 'B': i = va_arg(ap, int); @@ -233,10 +257,10 @@ size_t tdb_pack(char *buf, int bufsize, char *fmt, ...) return PTR_DIFF(buf, buf0); } - - -/* useful pair of routines for packing/unpacking data consisting of - integers and strings */ +/**************************************************************************** + Useful pair of routines for packing/unpacking data consisting of + integers and strings. +****************************************************************************/ int tdb_unpack(char *buf, int bufsize, char *fmt, ...) { @@ -259,47 +283,55 @@ int tdb_unpack(char *buf, int bufsize, char *fmt, ...) case 'w': len = 2; w = va_arg(ap, uint16 *); - if (bufsize < len) goto no_space; + if (bufsize < len) + goto no_space; *w = SVAL(buf, 0); break; case 'd': len = 4; d = va_arg(ap, uint32 *); - if (bufsize < len) goto no_space; + if (bufsize < len) + goto no_space; *d = IVAL(buf, 0); break; case 'p': len = 4; p = va_arg(ap, void **); - if (bufsize < len) goto no_space; + if (bufsize < len) + goto no_space; *p = (void *)IVAL(buf, 0); break; case 'P': s = va_arg(ap,char *); len = strlen(buf) + 1; - if (bufsize < len || len > sizeof(pstring)) goto no_space; + if (bufsize < len || len > sizeof(pstring)) + goto no_space; memcpy(s, buf, len); break; case 'f': s = va_arg(ap,char *); len = strlen(buf) + 1; - if (bufsize < len || len > sizeof(fstring)) goto no_space; + if (bufsize < len || len > sizeof(fstring)) + goto no_space; memcpy(s, buf, len); break; case 'B': i = va_arg(ap, int *); b = va_arg(ap, char **); len = 4; - if (bufsize < len) goto no_space; + if (bufsize < len) + goto no_space; *i = IVAL(buf, 0); if (! *i) { *b = NULL; break; } len += *i; - if (bufsize < len) goto no_space; + if (bufsize < len) + goto no_space; *b = (char *)malloc(*i); - if (! *b) goto no_space; + if (! *b) + goto no_space; memcpy(*b, buf+4, *i); break; default: @@ -326,8 +358,9 @@ int tdb_unpack(char *buf, int bufsize, char *fmt, ...) } /**************************************************************************** -log tdb messages via DEBUG() + Log tdb messages via DEBUG(). ****************************************************************************/ + static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...) { va_list ap; @@ -337,26 +370,30 @@ static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...) vasprintf(&ptr, format, ap); va_end(ap); - if (!ptr || !*ptr) return; + if (!ptr || !*ptr) + return; DEBUG(level, ("tdb(%s): %s", tdb->name, ptr)); free(ptr); } +/**************************************************************************** + Like tdb_open() but also setup a logging function that redirects to + the samba DEBUG() system. +****************************************************************************/ - -/* like tdb_open() but also setup a logging function that redirects to - the samba DEBUG() system */ TDB_CONTEXT *tdb_open_log(char *name, int hash_size, int tdb_flags, int open_flags, mode_t mode) { TDB_CONTEXT *tdb; - if (!lp_use_mmap()) tdb_flags |= TDB_NOMMAP; + if (!lp_use_mmap()) + tdb_flags |= TDB_NOMMAP; tdb = tdb_open(name, hash_size, tdb_flags, open_flags, mode); - if (!tdb) return NULL; + if (!tdb) + return NULL; tdb_logging_function(tdb, tdb_log); |