*/
#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.82 2002-12-22 01:26:49 hannes Exp $ (LBL)";
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/util.c,v 1.95.2.1 2005-04-25 16:15:07 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
fn_printn(register const u_char *s, register u_int n,
register const u_char *ep)
{
- register int ret;
register u_char c;
- ret = 1; /* assume truncated */
- while (ep == NULL || s < ep) {
- if (n-- <= 0) {
- ret = 0;
- break;
- }
+ while (n > 0 && (ep == NULL || s < ep)) {
+ n--;
c = *s++;
if (!isascii(c)) {
c = toascii(c);
}
putchar(c);
}
- return(ret);
+ return (n == 0) ? 0 : 1;
}
/*
static unsigned b_sec;
static unsigned b_usec;
- switch(tflag) {
- case 1: /* Default */
+ switch (tflag) {
+
+ case 0: /* Default */
s = (tvp->tv_sec + thiszone) % 86400;
(void)printf("%02d:%02d:%02d.%06u ",
s / 3600, (s % 3600) / 60, s % 60,
(unsigned)tvp->tv_usec);
break;
- case -1: /* Unix timeval style */
+
+ case 1: /* No time stamp */
+ break;
+
+ case 2: /* Unix timeval style */
(void)printf("%u.%06u ",
(unsigned)tvp->tv_sec,
(unsigned)tvp->tv_usec);
break;
- case -2:
+
+ case 3: /* Microseconds since previous packet */
if (b_sec == 0) {
printf("000000 ");
} else {
b_sec = tvp->tv_sec;
b_usec = tvp->tv_usec;
break;
- case -3: /* Default + Date*/
+
+ case 4: /* Default + Date*/
s = (tvp->tv_sec + thiszone) % 86400;
Time = (tvp->tv_sec + thiszone) - s;
- tm = gmtime (&Time);
- (void)printf("%02d/%02d/%04d %02d:%02d:%02d.%06u ",
- tm->tm_mon+1, tm->tm_mday,
- tm->tm_year+1900,
- s / 3600, (s % 3600) / 60,
- s % 60, (unsigned)tvp->tv_usec);
+ tm = gmtime (&Time);
+ if (!tm)
+ printf("Date fail ");
+ else
+ printf("%04d-%02d-%02d ",
+ tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
+ printf("%02d:%02d:%02d.%06u ",
+ s / 3600, (s % 3600) / 60, s % 60, (unsigned)tvp->tv_usec);
break;
}
}
*/
int
-print_unknown_data(const u_char *cp,const char *lf,int len)
+print_unknown_data(const u_char *cp,const char *ident,int len)
{
- int i;
-
- if (len ==0)
- return(0);
+ hex_print(ident,cp,len);
+ return(1); /* everything is ok */
+}
- printf("%s0x0000: ",lf);
- for(i=0;i<len;i++) {
- if (!TTEST2(*(cp+i), 1)) {
- printf("%spacket exceeded snapshot",lf);
- return(0);
- }
- printf("%02x",*(cp+i));
- if (i%2)
- printf(" ");
- if (i/16!=(i+1)/16) {
- if (i<(len-1))
- printf("%s0x%04x: ",lf,i);
- }
+/*
+ * Convert a token value to a string; use "fmt" if not found.
+ */
+const char *
+tok2strbuf(register const struct tok *lp, register const char *fmt,
+ register int v, char *buf, size_t bufsize)
+{
+ if (lp != NULL) {
+ while (lp->s != NULL) {
+ if (lp->v == v)
+ return (lp->s);
+ ++lp;
+ }
}
- return(1); /* everything is ok */
+ if (fmt == NULL)
+ fmt = "#%d";
+
+ (void)snprintf(buf, bufsize, fmt, v);
+ return (const char *)buf;
}
/*
tok2str(register const struct tok *lp, register const char *fmt,
register int v)
{
- static char buf[128];
+ static char buf[4][128];
+ static int idx = 0;
+ char *ret;
- while (lp->s != NULL) {
- if (lp->v == v)
- return (lp->s);
- ++lp;
- }
- if (fmt == NULL)
- fmt = "#%d";
- (void)snprintf(buf, sizeof(buf), fmt, v);
- return (buf);
+ ret = buf[idx];
+ idx = (idx+1) & 3;
+ return tok2strbuf(lp, fmt, v, ret, sizeof(buf[0]));
}
/*
*/
char *
bittok2str(register const struct tok *lp, register const char *fmt,
- register int v)
+ register int v)
{
static char buf[256]; /* our stringbuffer */
int buflen=0;
register int rotbit; /* this is the bit we rotate through all bitpositions */
register int tokval;
- while (lp->s != NULL) {
+ while (lp->s != NULL && lp != NULL) {
tokval=lp->v; /* load our first value */
rotbit=1;
while (rotbit != 0) {
0xffffff80, 0xffffffc0, 0xffffffe0, 0xfffffff0,
0xfffffff8, 0xfffffffc, 0xfffffffe, 0xffffffff
};
- int prefix_len = 33;
+ int prefix_len = 32;
- /* lets see if we can transform the mask into a prefixlen */
- while (prefix_len >= 0) {
- if (bitmasks[prefix_len] == mask)
- break;
- prefix_len--;
- }
- return (prefix_len);
+ /* let's see if we can transform the mask into a prefixlen */
+ while (prefix_len >= 0) {
+ if (bitmasks[prefix_len] == mask)
+ break;
+ prefix_len--;
+ }
+ return (prefix_len);
}
/* VARARGS */
return buf;
}
+/*
+ * On Windows, we need to open the file in binary mode, so that
+ * we get all the bytes specified by the size we get from "fstat()".
+ * On UNIX, that's not necessary. O_BINARY is defined on Windows;
+ * we define it as 0 if it's not defined, so it does nothing.
+ */
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
char *
read_infile(char *fname)
{
- register int fd, cc;
+ register int i, fd, cc;
register char *cp;
struct stat buf;
- fd = open(fname, O_RDONLY);
+ fd = open(fname, O_RDONLY|O_BINARY);
if (fd < 0)
error("can't open %s: %s", fname, pcap_strerror(errno));
if (cc < 0)
error("read %s: %s", fname, pcap_strerror(errno));
if (cc != buf.st_size)
-#ifndef WIN32
error("short read %s (%d != %d)", fname, cc, (int)buf.st_size);
-#else
-/* Windows seems not to like the final \xa character */
- {
- char *pdest;
- pdest=strchr( cp, '\xa');
- *pdest=0;
- }
-#endif /* WIN32 */
- cp[(int)buf.st_size] = '\0';
+ close(fd);
+ /* replace "# comment" with spaces */
+ for (i = 0; i < cc; i++) {
+ if (cp[i] == '#')
+ while (i < cc && cp[i] != '\n')
+ cp[i++] = ' ';
+ }
+ cp[cc] = '\0';
return (cp);
}
projects / tcpdump / blobdiff