X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Futils.c;h=44f2e73407c50d5fc89473dfe174be9323527185;hb=8bc5a4e58d34b6e5304d86f4722e2d2428abbf7c;hp=8b83e34d3ebec3d7a09da378714676c1c5acc1ea;hpb=91f441b35caadb42b7d20017d3f4c47031a8db5b;p=ppp.git

diff --git a/pppd/utils.c b/pppd/utils.c
index 8b83e34..44f2e73 100644
--- a/pppd/utils.c
+++ b/pppd/utils.c
@@ -1,23 +1,34 @@
 /*
  * utils.c - various utility functions used in pppd.
  *
- * Copyright (c) 1999 The Australian National University.
- * All rights reserved.
+ * Copyright (c) 1999-2002 Paul Mackerras. All rights reserved.
  *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the Australian National University.  The name of the University
- * may not be used to endorse or promote products derived from this
- * software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. The name(s) of the authors of this software must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission.
+ *
+ * 3. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by Paul Mackerras
+ *     <paulus@samba.org>".
+ *
+ * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define RCSID	"$Id: utils.c,v 1.15 2001/11/09 10:33:04 paulus Exp $"
+#define RCSID	"$Id: utils.c,v 1.24 2004/11/04 10:02:26 paulus Exp $"
 
 #include <stdio.h>
 #include <ctype.h>
@@ -29,6 +40,7 @@
 #include <fcntl.h>
 #include <syslog.h>
 #include <netdb.h>
+#include <time.h>
 #include <utmp.h>
 #include <pwd.h>
 #include <sys/param.h>
@@ -106,7 +118,7 @@ strlcat(dest, src, len)
 /*
  * slprintf - format a message into a buffer.  Like sprintf except we
  * also specify the length of the output buffer, and we handle
- * %r (recursive format), %m (error message), %v (visible string),
+ * %m (error message), %v (visible string),
  * %q (quoted string), %t (current time) and %I (IP address) formats.
  * Doesn't do floating-point formats.
  * Returns the number of chars put into buf.
@@ -208,6 +220,28 @@ vslprintf(buf, buflen, fmt, args)
 	neg = 0;
 	++fmt;
 	switch (c) {
+	case 'l':
+	    c = *fmt++;
+	    switch (c) {
+	    case 'd':
+		val = va_arg(args, long);
+		if (val < 0) {
+		    neg = 1;
+		    val = -val;
+		}
+		base = 10;
+		break;
+	    case 'u':
+		val = va_arg(args, unsigned long);
+		base = 10;
+		break;
+	    default:
+		*buf++ = '%'; --buflen;
+		*buf++ = 'l'; --buflen;
+		--fmt;		/* so %lz outputs %lz etc. */
+		continue;
+	    }
+	    break;
 	case 'd':
 	    i = va_arg(args, int);
 	    if (i < 0) {
@@ -253,6 +287,7 @@ vslprintf(buf, buflen, fmt, args)
 		     (ip >> 16) & 0xff, (ip >> 8) & 0xff, ip & 0xff);
 	    str = num;
 	    break;
+#if 0	/* not used, and breaks on S/390, apparently */
 	case 'r':
 	    f = va_arg(args, char *);
 #ifndef __powerpc__
@@ -264,6 +299,7 @@ vslprintf(buf, buflen, fmt, args)
 	    buf += n;
 	    buflen -= n;
 	    continue;
+#endif
 	case 't':
 	    time(&t);
 	    str = ctime(&t);
@@ -681,6 +717,7 @@ error __V((char *fmt, ...))
 
     logit(LOG_ERR, fmt, pvar);
     va_end(pvar);
+    ++error_count;
 }
 
 /*
@@ -793,9 +830,35 @@ dump_packet(const char *tag, unsigned char *p, int len)
     dbglog("%s %P", tag, p, len);
 }
 
+/*
+ * complete_read - read a full `count' bytes from fd,
+ * unless end-of-file or an error other than EINTR is encountered.
+ */
+ssize_t
+complete_read(int fd, void *buf, size_t count)
+{
+	size_t done;
+	ssize_t nb;
+	char *ptr = buf;
+
+	for (done = 0; done < count; ) {
+		nb = read(fd, ptr, count - done);
+		if (nb < 0) {
+			if (errno == EINTR)
+				continue;
+			return -1;
+		}
+		if (nb == 0)
+			break;
+		done += nb;
+		ptr += nb;
+	}
+	return done;
+}
+
 /* Procedures for locking the serial device using a lock file. */
 #ifndef LOCK_DIR
-#ifdef _linux_
+#ifdef __linux__
 #define LOCK_DIR	"/var/lock"
 #else
 #ifdef SVR4
@@ -820,7 +883,7 @@ lock(dev)
 
     result = mklock (dev, (void *) 0);
     if (result == 0) {
-	strlcpy(lock_file, sizeof(lock_file), dev);
+	strlcpy(lock_file, dev, sizeof(lock_file));
 	return 0;
     }
 
@@ -851,9 +914,20 @@ lock(dev)
 	     major(sbuf.st_rdev), minor(sbuf.st_rdev));
 #else
     char *p;
+    char lockdev[MAXPATHLEN];
+
+    if ((p = strstr(dev, "dev/")) != NULL) {
+	dev = p + 4;
+	strncpy(lockdev, dev, MAXPATHLEN-1);
+	lockdev[MAXPATHLEN-1] = 0;
+	while ((p = strrchr(lockdev, '/')) != NULL) {
+	    *p = '_';
+	}
+	dev = lockdev;
+    } else
+	if ((p = strrchr(dev, '/')) != NULL)
+	    dev = p + 1;
 
-    if ((p = strrchr(dev, '/')) != NULL)
-	dev = p + 1;
     slprintf(lock_file, sizeof(lock_file), "%s/LCK..%s", LOCK_DIR, dev);
 #endif