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|
--- a/pppd/utils.c
+++ b/pppd/utils.c
@@ -30,6 +30,7 @@
#define RCSID "$Id: utils.c,v 1.24 2004/11/04 10:02:26 paulus Exp $"
+#define _BSD_SOURCE
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
@@ -67,15 +68,10 @@ 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 *));
-struct buffer_info {
- char *ptr;
- int len;
-};
-
+#ifndef __UCLIBC__
/*
* strlcpy - like strcpy/strncpy, doesn't overflow destination buffer,
* always leaves destination null-terminated (for len > 0).
@@ -113,6 +109,7 @@ strlcat(dest, src, len)
return dlen + strlcpy(dest + dlen, src, (len > dlen? len - dlen: 0));
}
+#endif
/*
@@ -129,17 +126,7 @@ slprintf __V((char *buf, int buflen, cha
va_list args;
int n;
-#if defined(__STDC__)
va_start(args, fmt);
-#else
- char *buf;
- int buflen;
- char *fmt;
- va_start(args);
- buf = va_arg(args, char *);
- buflen = va_arg(args, int);
- fmt = va_arg(args, char *);
-#endif
n = vslprintf(buf, buflen, fmt, args);
va_end(args);
return n;
@@ -148,7 +135,6 @@ slprintf __V((char *buf, int buflen, cha
/*
* vslprintf - like slprintf, takes a va_list instead of a list of args.
*/
-#define OUTCHAR(c) (buflen > 0? (--buflen, *buf++ = (c)): 0)
int
vslprintf(buf, buflen, fmt, args)
@@ -157,298 +143,14 @@ vslprintf(buf, buflen, fmt, args)
char *fmt;
va_list args;
{
- int c, i, n;
- int width, prec, fillch;
- int base, len, neg, quoted;
- unsigned long val = 0;
- char *str, *f, *buf0;
- unsigned char *p;
- char num[32];
- time_t t;
- u_int32_t ip;
- static char hexchars[] = "0123456789abcdef";
- struct buffer_info bufinfo;
-
- buf0 = buf;
- --buflen;
- while (buflen > 0) {
- for (f = fmt; *f != '%' && *f != 0; ++f)
- ;
- if (f > fmt) {
- len = f - fmt;
- if (len > buflen)
- len = buflen;
- memcpy(buf, fmt, len);
- buf += len;
- buflen -= len;
- fmt = f;
- }
- if (*fmt == 0)
- break;
- c = *++fmt;
- width = 0;
- prec = -1;
- fillch = ' ';
- if (c == '0') {
- fillch = '0';
- c = *++fmt;
- }
- if (c == '*') {
- width = va_arg(args, int);
- c = *++fmt;
- } else {
- while (isdigit(c)) {
- width = width * 10 + c - '0';
- c = *++fmt;
- }
- }
- if (c == '.') {
- c = *++fmt;
- if (c == '*') {
- prec = va_arg(args, int);
- c = *++fmt;
- } else {
- prec = 0;
- while (isdigit(c)) {
- prec = prec * 10 + c - '0';
- c = *++fmt;
- }
- }
- }
- str = 0;
- base = 0;
- 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) {
- neg = 1;
- val = -i;
- } else
- val = i;
- base = 10;
- break;
- case 'u':
- val = va_arg(args, unsigned int);
- base = 10;
- break;
- case 'o':
- val = va_arg(args, unsigned int);
- base = 8;
- break;
- case 'x':
- case 'X':
- val = va_arg(args, unsigned int);
- base = 16;
- break;
- case 'p':
- val = (unsigned long) va_arg(args, void *);
- base = 16;
- neg = 2;
- break;
- case 's':
- str = va_arg(args, char *);
- break;
- case 'c':
- num[0] = va_arg(args, int);
- num[1] = 0;
- str = num;
- break;
- case 'm':
- str = strerror(errno);
- break;
- case 'I':
- ip = va_arg(args, u_int32_t);
- ip = ntohl(ip);
- slprintf(num, sizeof(num), "%d.%d.%d.%d", (ip >> 24) & 0xff,
- (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__
- 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;
-#endif
- case 't':
- time(&t);
- str = ctime(&t);
- str += 4; /* chop off the day name */
- str[15] = 0; /* chop off year and newline */
- break;
- case 'v': /* "visible" string */
- case 'q': /* quoted string */
- quoted = c == 'q';
- p = va_arg(args, unsigned char *);
- if (fillch == '0' && prec >= 0) {
- n = prec;
- } else {
- n = strlen((char *)p);
- if (prec >= 0 && n > prec)
- n = prec;
- }
- while (n > 0 && buflen > 0) {
- c = *p++;
- --n;
- if (!quoted && c >= 0x80) {
- OUTCHAR('M');
- OUTCHAR('-');
- c -= 0x80;
- }
- if (quoted && (c == '"' || c == '\\'))
- OUTCHAR('\\');
- if (c < 0x20 || (0x7f <= c && c < 0xa0)) {
- if (quoted) {
- OUTCHAR('\\');
- switch (c) {
- case '\t': OUTCHAR('t'); break;
- case '\n': OUTCHAR('n'); break;
- case '\b': OUTCHAR('b'); break;
- case '\f': OUTCHAR('f'); break;
- default:
- OUTCHAR('x');
- OUTCHAR(hexchars[c >> 4]);
- OUTCHAR(hexchars[c & 0xf]);
- }
- } else {
- if (c == '\t')
- OUTCHAR(c);
- else {
- OUTCHAR('^');
- OUTCHAR(c ^ 0x40);
- }
- }
- } else
- OUTCHAR(c);
- }
- continue;
- case 'P': /* print PPP packet */
- bufinfo.ptr = buf;
- bufinfo.len = buflen + 1;
- p = va_arg(args, unsigned char *);
- n = va_arg(args, int);
- format_packet(p, n, vslp_printer, &bufinfo);
- buf = bufinfo.ptr;
- buflen = bufinfo.len - 1;
- continue;
- case 'B':
- p = va_arg(args, unsigned char *);
- for (n = prec; n > 0; --n) {
- c = *p++;
- if (fillch == ' ')
- OUTCHAR(' ');
- OUTCHAR(hexchars[(c >> 4) & 0xf]);
- OUTCHAR(hexchars[c & 0xf]);
- }
- continue;
- default:
- *buf++ = '%';
- if (c != '%')
- --fmt; /* so %z outputs %z etc. */
- --buflen;
- continue;
- }
- if (base != 0) {
- str = num + sizeof(num);
- *--str = 0;
- while (str > num + neg) {
- *--str = hexchars[val % base];
- val = val / base;
- if (--prec <= 0 && val == 0)
- break;
- }
- switch (neg) {
- case 1:
- *--str = '-';
- break;
- case 2:
- *--str = 'x';
- *--str = '0';
- break;
- }
- len = num + sizeof(num) - 1 - str;
- } else {
- len = strlen(str);
- if (prec >= 0 && len > prec)
- len = prec;
- }
- if (width > 0) {
- if (width > buflen)
- width = buflen;
- if ((n = width - len) > 0) {
- buflen -= n;
- for (; n > 0; --n)
- *buf++ = fillch;
- }
- }
- if (len > buflen)
- len = buflen;
- memcpy(buf, str, len);
- buf += len;
- buflen -= len;
- }
- *buf = 0;
- return buf - buf0;
-}
+ int ret;
-/*
- * vslp_printer - used in processing a %P format
- */
-static void
-vslp_printer __V((void *arg, char *fmt, ...))
-{
- int n;
- va_list pvar;
- struct buffer_info *bi;
-
-#if defined(__STDC__)
- va_start(pvar, fmt);
-#else
- void *arg;
- char *fmt;
- va_start(pvar);
- arg = va_arg(pvar, void *);
- fmt = va_arg(pvar, char *);
-#endif
-
- bi = (struct buffer_info *) arg;
- n = vslprintf(bi->ptr, bi->len, fmt, pvar);
- va_end(pvar);
-
- bi->ptr += n;
- bi->len -= n;
+ ret = vsnprintf(buf, buflen, fmt, args);
+ buf[buflen - 1] = 0;
+ return ret;
}
+
#ifdef unused
/*
* log_packet - format a packet and log it.
|
