1 /* lock.c - routines to open and apply an advisory lock to a file */
4 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
5 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
12 #include <ac/string.h>
13 #include <ac/socket.h>
15 #include <ac/unistd.h>
17 #ifdef HAVE_SYS_FILE_H
25 lock_fopen( const char *fname, const char *type, FILE **lfp )
30 /* open the lock file */
31 snprintf( buf, sizeof buf, "%s.lock", fname );
33 if ( (*lfp = fopen( buf, "w" )) == NULL ) {
35 LDAP_LOG( OPERATION, ERR,
36 "lock_fopen: could not open lock file \"%s\".\n", buf, 0, 0);
38 Debug( LDAP_DEBUG_ANY, "could not open \"%s\"\n", buf, 0, 0 );
44 /* acquire the lock */
45 ldap_lockf( fileno(*lfp) );
47 /* open the log file */
48 if ( (fp = fopen( fname, type )) == NULL ) {
50 LDAP_LOG( OPERATION, ERR,
51 "lock_fopen: could not open log file \"%s\".\n", buf, 0, 0);
53 Debug( LDAP_DEBUG_ANY, "could not open \"%s\"\n", fname, 0, 0 );
56 ldap_unlockf( fileno(*lfp) );
66 lock_fclose( FILE *fp, FILE *lfp )
69 ldap_unlockf( fileno(lfp) );
72 return( fclose( fp ) );