/*
* 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 1.17 2002/01/14 15:31:34 dfs Exp $"
+#define RCSID "$Id: utils.c,v 1.25 2008/06/03 12:06:37 paulus Exp $"
#include <stdio.h>
#include <ctype.h>
static void logit __P((int, char *, va_list));
static void log_write __P((int, char *));
static void vslp_printer __P((void *, char *, ...));
-static void format_packet __P((u_char *, int, void (*) (void *, char *, ...),
- void *));
+static void format_packet __P((u_char *, int, printer_func, void *));
struct buffer_info {
char *ptr;
/*
* 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.
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:
+ OUTCHAR('%');
+ OUTCHAR('l');
+ --fmt; /* so %lz outputs %lz etc. */
+ continue;
+ }
+ break;
case 'd':
i = va_arg(args, int);
if (i < 0) {
(ip >> 16) & 0xff, (ip >> 8) & 0xff, ip & 0xff);
str = num;
break;
- case 'r':
- f = va_arg(args, char *);
-#ifndef __powerpc__
- n = vslprintf(buf, buflen + 1, f, va_arg(args, va_list));
-#else
- /* On the powerpc, a va_list is an array of 1 structure */
- n = vslprintf(buf, buflen + 1, f, va_arg(args, void *));
-#endif
- buf += n;
- buflen -= n;
- continue;
case 't':
time(&t);
str = ctime(&t);
case 'q': /* quoted string */
quoted = c == 'q';
p = va_arg(args, unsigned char *);
+ if (p == NULL)
+ p = (unsigned char *)"<NULL>";
if (fillch == '0' && prec >= 0) {
n = prec;
} else {
format_packet(p, len, printer, arg)
u_char *p;
int len;
- void (*printer) __P((void *, char *, ...));
+ printer_func printer;
void *arg;
{
int i, n;
void
init_pr_log(prefix, level)
- char *prefix;
+ const char *prefix;
int level;
{
linep = line;
print_string(p, len, printer, arg)
char *p;
int len;
- void (*printer) __P((void *, char *, ...));
+ printer_func printer;
void *arg;
{
int c;
printer(arg, "\\t");
break;
default:
- printer(arg, "\\%.3o", c);
+ printer(arg, "\\%.3o", (unsigned char) c);
}
}
}
char *fmt;
va_list args;
{
- int n;
char buf[1024];
- n = vslprintf(buf, sizeof(buf), fmt, args);
+ vslprintf(buf, sizeof(buf), fmt, args);
log_write(level, buf);
}
logit(LOG_ERR, fmt, pvar);
va_end(pvar);
+ ++error_count;
}
/*
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