/*
* 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 1.18 2002/03/05 15:14:04 dfs Exp $"
+#define RCSID "$Id: utils.c,v 1.25 2008/06/03 12:06:37 paulus Exp $"
#include <stdio.h>
#include <ctype.h>
#include "fsm.h"
#include "lcp.h"
-static const char rcsid[] = RCSID;
#if defined(SUNOS4)
extern char *strerror();
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.
u_int32_t ip;
static char hexchars[] = "0123456789abcdef";
struct buffer_info bufinfo;
+ int termch;
buf0 = buf;
--buflen;
base = 10;
break;
default:
- *buf++ = '%'; --buflen;
- *buf++ = 'l'; --buflen;
+ OUTCHAR('%');
+ OUTCHAR('l');
--fmt; /* so %lz outputs %lz etc. */
continue;
}
(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;
+ termch = -1; /* matches no unsigned char value */
} else {
- n = strlen((char *)p);
- if (prec >= 0 && n > prec)
+ n = buflen;
+ if (prec != -1 && n > prec)
n = prec;
+ termch = 0; /* stop on null byte */
}
while (n > 0 && buflen > 0) {
c = *p++;
+ if (c == termch)
+ break;
--n;
if (!quoted && c >= 0x80) {
OUTCHAR('M');
}
len = num + sizeof(num) - 1 - str;
} else {
- len = strlen(str);
- if (prec >= 0 && len > prec)
- len = prec;
+ for (len = 0; len < buflen && (prec == -1 || len < prec); ++len)
+ if (str[len] == 0)
+ break;
}
if (width > 0) {
if (width > buflen)
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 && !got_sigterm)
+ 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
projects / ppp.git / blobdiff