X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=sbr%2Flock_file.c;h=66eab72ca3da9e56461e5145096c688b84fe9fe7;hp=2cb6bdc1543c7b427bb3afcdc39203a44ff2b411;hb=389877bae1fe1a9f7259b8979f6a930744d90fab;hpb=0dc7a85acb242ad851c28001435932526a9a6d29

diff --git a/sbr/lock_file.c b/sbr/lock_file.c
index 2cb6bdc..66eab72 100644
--- a/sbr/lock_file.c
+++ b/sbr/lock_file.c
@@ -3,6 +3,10 @@
  * lock.c -- routines to lock/unlock files
  *
  * $Id$
+ *
+ * This code is Copyright (c) 2002, by the authors of nmh.  See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information.
  */
 
 /* Modified by Ruud de Rooij to support Miquel van Smoorenburg's liblockfile
@@ -15,6 +19,7 @@
  
 #include <h/mh.h>
 #include <h/signals.h>
+#include <h/utils.h>
 
 #ifdef TIME_WITH_SYS_TIME
 # include <sys/time.h>
@@ -31,11 +36,6 @@
 # include <errno.h>
 #endif
 
-#ifdef MMDFONLY
-# include <mmdfonly.h>
-# include <lockonly.h>
-#endif /* MMDFONLY */
-
 #ifdef HAVE_FCNTL_H
 # include <fcntl.h>
 #else
@@ -52,8 +52,6 @@
 #include <lockfile.h>
 #endif
 
-extern int errno;
-
 #ifdef LOCKDIR
 char *lockdir = LOCKDIR;
 #endif
@@ -197,10 +195,22 @@ lkfopen (char *file, char *mode)
 
     if (strcmp (mode, "r") == 0)
 	access = O_RDONLY;
-    else
+    else if (strcmp (mode, "r+") == 0)
 	access = O_RDWR;
+    else if (strcmp (mode, "w") == 0)
+	access = O_WRONLY | O_CREAT | O_TRUNC;
+    else if (strcmp (mode, "w+") == 0)
+	access = O_RDWR | O_CREAT | O_TRUNC;
+    else if (strcmp (mode, "a") == 0)
+	access = O_WRONLY | O_CREAT | O_APPEND;
+    else if (strcmp (mode, "a+") == 0)
+	access = O_RDWR | O_CREAT | O_APPEND;
+    else {
+	errno = EINVAL;
+	return NULL;
+    }
 
-    if ((fd = lkopen (file, access, 0)) == -1)
+    if ((fd = lkopen (file, access, 0666)) == -1)
 	return NULL;
 
     if ((fp = fdopen (fd, mode)) == NULL) {
@@ -310,7 +320,8 @@ lkopen_kernel (char *file, int access, mode_t mode)
 # endif
 
 # ifdef FLOCK_LOCKING
-	if (flock (fd, LOCK_EX | LOCK_NB) != -1)
+	if (flock (fd, (((access & 03) == O_RDONLY) ? LOCK_SH : LOCK_EX)
+		   | LOCK_NB) != -1)
 	    return fd;
 # endif
 
@@ -386,6 +397,7 @@ lkopen_dot (char *file, int access, mode_t mode)
 		else
 		    sleep (5);
 	    }
+	    lockname (file, &lkinfo, 1);
 	}
     }
 #else
@@ -526,15 +538,11 @@ timerON (char *curlock, int fd)
     struct lock *lp;
     size_t len;
 
-    if (!(lp = (struct lock *) malloc (sizeof(*lp))))
-	return;
+    lp = (struct lock *) mh_xmalloc (sizeof(*lp));
 
     len = strlen(curlock) + 1;
     lp->l_fd = fd;
-    if (!(lp->l_lock = malloc (len))) {
-	free ((char *) lp);
-	return;
-    }
+    lp->l_lock = mh_xmalloc (len);
     memcpy (lp->l_lock, curlock, len);
     lp->l_next = l_top;