- add netmap-libpcap
- add netmap (FreeBSD header files need to be updated with this) - move prototype perl scripts to prototype/ folder - create basic structure for sipcap app (no code yet)
This commit is contained in:
farrokhi
625
netmap-libpcap/missing/snprintf.c
Normal file
625
netmap-libpcap/missing/snprintf.c
Normal file
@ -0,0 +1,625 @@
|
||||
/*
|
||||
* Copyright (c) 1995-1999 Kungliga Tekniska H<>gskolan
|
||||
* (Royal Institute of Technology, Stockholm, Sweden).
|
||||
* All rights reserved.
|
||||
*
|
||||
* 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. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <pcap-int.h>
|
||||
|
||||
enum format_flags {
|
||||
minus_flag = 1,
|
||||
plus_flag = 2,
|
||||
space_flag = 4,
|
||||
alternate_flag = 8,
|
||||
zero_flag = 16
|
||||
};
|
||||
|
||||
/*
|
||||
* Common state
|
||||
*/
|
||||
|
||||
struct state {
|
||||
unsigned char *str;
|
||||
unsigned char *s;
|
||||
unsigned char *theend;
|
||||
size_t sz;
|
||||
size_t max_sz;
|
||||
int (*append_char)(struct state *, unsigned char);
|
||||
int (*reserve)(struct state *, size_t);
|
||||
/* XXX - methods */
|
||||
};
|
||||
|
||||
#ifndef HAVE_VSNPRINTF
|
||||
static int
|
||||
sn_reserve (struct state *state, size_t n)
|
||||
{
|
||||
return state->s + n > state->theend;
|
||||
}
|
||||
|
||||
static int
|
||||
sn_append_char (struct state *state, unsigned char c)
|
||||
{
|
||||
if (sn_reserve (state, 1)) {
|
||||
return 1;
|
||||
} else {
|
||||
*state->s++ = c;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
static int
|
||||
as_reserve (struct state *state, size_t n)
|
||||
{
|
||||
if (state->s + n > state->theend) {
|
||||
int off = state->s - state->str;
|
||||
unsigned char *tmp;
|
||||
|
||||
if (state->max_sz && state->sz >= state->max_sz)
|
||||
return 1;
|
||||
|
||||
state->sz = max(state->sz * 2, state->sz + n);
|
||||
if (state->max_sz)
|
||||
state->sz = min(state->sz, state->max_sz);
|
||||
tmp = realloc (state->str, state->sz);
|
||||
if (tmp == NULL)
|
||||
return 1;
|
||||
state->str = tmp;
|
||||
state->s = state->str + off;
|
||||
state->theend = state->str + state->sz - 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
as_append_char (struct state *state, unsigned char c)
|
||||
{
|
||||
if(as_reserve (state, 1))
|
||||
return 1;
|
||||
else {
|
||||
*state->s++ = c;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
static int
|
||||
append_number(struct state *state,
|
||||
unsigned long num, unsigned base, char *rep,
|
||||
int width, int prec, int flags, int minusp)
|
||||
{
|
||||
int len = 0;
|
||||
int i;
|
||||
|
||||
/* given precision, ignore zero flag */
|
||||
if(prec != -1)
|
||||
flags &= ~zero_flag;
|
||||
else
|
||||
prec = 1;
|
||||
/* zero value with zero precision -> "" */
|
||||
if(prec == 0 && num == 0)
|
||||
return 0;
|
||||
do{
|
||||
if((*state->append_char)(state, rep[num % base]))
|
||||
return 1;
|
||||
len++;
|
||||
num /= base;
|
||||
}while(num);
|
||||
prec -= len;
|
||||
/* pad with prec zeros */
|
||||
while(prec-- > 0){
|
||||
if((*state->append_char)(state, '0'))
|
||||
return 1;
|
||||
len++;
|
||||
}
|
||||
/* add length of alternate prefix (added later) to len */
|
||||
if(flags & alternate_flag && (base == 16 || base == 8))
|
||||
len += base / 8;
|
||||
/* pad with zeros */
|
||||
if(flags & zero_flag){
|
||||
width -= len;
|
||||
if(minusp || (flags & space_flag) || (flags & plus_flag))
|
||||
width--;
|
||||
while(width-- > 0){
|
||||
if((*state->append_char)(state, '0'))
|
||||
return 1;
|
||||
len++;
|
||||
}
|
||||
}
|
||||
/* add alternate prefix */
|
||||
if(flags & alternate_flag && (base == 16 || base == 8)){
|
||||
if(base == 16)
|
||||
if((*state->append_char)(state, rep[10] + 23)) /* XXX */
|
||||
return 1;
|
||||
if((*state->append_char)(state, '0'))
|
||||
return 1;
|
||||
}
|
||||
/* add sign */
|
||||
if(minusp){
|
||||
if((*state->append_char)(state, '-'))
|
||||
return 1;
|
||||
len++;
|
||||
} else if(flags & plus_flag) {
|
||||
if((*state->append_char)(state, '+'))
|
||||
return 1;
|
||||
len++;
|
||||
} else if(flags & space_flag) {
|
||||
if((*state->append_char)(state, ' '))
|
||||
return 1;
|
||||
len++;
|
||||
}
|
||||
if(flags & minus_flag)
|
||||
/* swap before padding with spaces */
|
||||
for(i = 0; i < len / 2; i++){
|
||||
char c = state->s[-i-1];
|
||||
state->s[-i-1] = state->s[-len+i];
|
||||
state->s[-len+i] = c;
|
||||
}
|
||||
width -= len;
|
||||
while(width-- > 0){
|
||||
if((*state->append_char)(state, ' '))
|
||||
return 1;
|
||||
len++;
|
||||
}
|
||||
if(!(flags & minus_flag))
|
||||
/* swap after padding with spaces */
|
||||
for(i = 0; i < len / 2; i++){
|
||||
char c = state->s[-i-1];
|
||||
state->s[-i-1] = state->s[-len+i];
|
||||
state->s[-len+i] = c;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
append_string (struct state *state,
|
||||
unsigned char *arg,
|
||||
int width,
|
||||
int prec,
|
||||
int flags)
|
||||
{
|
||||
if(prec != -1)
|
||||
width -= prec;
|
||||
else
|
||||
width -= strlen((char *)arg);
|
||||
if(!(flags & minus_flag))
|
||||
while(width-- > 0)
|
||||
if((*state->append_char) (state, ' '))
|
||||
return 1;
|
||||
if (prec != -1) {
|
||||
while (*arg && prec--)
|
||||
if ((*state->append_char) (state, *arg++))
|
||||
return 1;
|
||||
} else {
|
||||
while (*arg)
|
||||
if ((*state->append_char) (state, *arg++))
|
||||
return 1;
|
||||
}
|
||||
if(flags & minus_flag)
|
||||
while(width-- > 0)
|
||||
if((*state->append_char) (state, ' '))
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
append_char(struct state *state,
|
||||
unsigned char arg,
|
||||
int width,
|
||||
int flags)
|
||||
{
|
||||
while(!(flags & minus_flag) && --width > 0)
|
||||
if((*state->append_char) (state, ' '))
|
||||
return 1;
|
||||
|
||||
if((*state->append_char) (state, arg))
|
||||
return 1;
|
||||
while((flags & minus_flag) && --width > 0)
|
||||
if((*state->append_char) (state, ' '))
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* This can't be made into a function...
|
||||
*/
|
||||
|
||||
#define PARSE_INT_FORMAT(res, arg, unsig) \
|
||||
if (long_flag) \
|
||||
res = (unsig long)va_arg(arg, unsig long); \
|
||||
else if (short_flag) \
|
||||
res = (unsig short)va_arg(arg, unsig int); \
|
||||
else \
|
||||
res = (unsig int)va_arg(arg, unsig int)
|
||||
|
||||
/*
|
||||
* zyxprintf - return 0 or -1
|
||||
*/
|
||||
|
||||
static int
|
||||
xyzprintf (struct state *state, const char *char_format, va_list ap)
|
||||
{
|
||||
const unsigned char *format = (const unsigned char *)char_format;
|
||||
unsigned char c;
|
||||
|
||||
while((c = *format++)) {
|
||||
if (c == '%') {
|
||||
int flags = 0;
|
||||
int width = 0;
|
||||
int prec = -1;
|
||||
int long_flag = 0;
|
||||
int short_flag = 0;
|
||||
|
||||
/* flags */
|
||||
while((c = *format++)){
|
||||
if(c == '-')
|
||||
flags |= minus_flag;
|
||||
else if(c == '+')
|
||||
flags |= plus_flag;
|
||||
else if(c == ' ')
|
||||
flags |= space_flag;
|
||||
else if(c == '#')
|
||||
flags |= alternate_flag;
|
||||
else if(c == '0')
|
||||
flags |= zero_flag;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
if((flags & space_flag) && (flags & plus_flag))
|
||||
flags ^= space_flag;
|
||||
|
||||
if((flags & minus_flag) && (flags & zero_flag))
|
||||
flags ^= zero_flag;
|
||||
|
||||
/* width */
|
||||
if (isdigit(c))
|
||||
do {
|
||||
width = width * 10 + c - '0';
|
||||
c = *format++;
|
||||
} while(isdigit(c));
|
||||
else if(c == '*') {
|
||||
width = va_arg(ap, int);
|
||||
c = *format++;
|
||||
}
|
||||
|
||||
/* precision */
|
||||
if (c == '.') {
|
||||
prec = 0;
|
||||
c = *format++;
|
||||
if (isdigit(c))
|
||||
do {
|
||||
prec = prec * 10 + c - '0';
|
||||
c = *format++;
|
||||
} while(isdigit(c));
|
||||
else if (c == '*') {
|
||||
prec = va_arg(ap, int);
|
||||
c = *format++;
|
||||
}
|
||||
}
|
||||
|
||||
/* size */
|
||||
|
||||
if (c == 'h') {
|
||||
short_flag = 1;
|
||||
c = *format++;
|
||||
} else if (c == 'l') {
|
||||
long_flag = 1;
|
||||
c = *format++;
|
||||
}
|
||||
|
||||
switch (c) {
|
||||
case 'c' :
|
||||
if(append_char(state, va_arg(ap, int), width, flags))
|
||||
return -1;
|
||||
break;
|
||||
case 's' :
|
||||
if (append_string(state,
|
||||
va_arg(ap, unsigned char*),
|
||||
width,
|
||||
prec,
|
||||
flags))
|
||||
return -1;
|
||||
break;
|
||||
case 'd' :
|
||||
case 'i' : {
|
||||
long arg;
|
||||
unsigned long num;
|
||||
int minusp = 0;
|
||||
|
||||
PARSE_INT_FORMAT(arg, ap, signed);
|
||||
|
||||
if (arg < 0) {
|
||||
minusp = 1;
|
||||
num = -arg;
|
||||
} else
|
||||
num = arg;
|
||||
|
||||
if (append_number (state, num, 10, "0123456789",
|
||||
width, prec, flags, minusp))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'u' : {
|
||||
unsigned long arg;
|
||||
|
||||
PARSE_INT_FORMAT(arg, ap, unsigned);
|
||||
|
||||
if (append_number (state, arg, 10, "0123456789",
|
||||
width, prec, flags, 0))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'o' : {
|
||||
unsigned long arg;
|
||||
|
||||
PARSE_INT_FORMAT(arg, ap, unsigned);
|
||||
|
||||
if (append_number (state, arg, 010, "01234567",
|
||||
width, prec, flags, 0))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'x' : {
|
||||
unsigned long arg;
|
||||
|
||||
PARSE_INT_FORMAT(arg, ap, unsigned);
|
||||
|
||||
if (append_number (state, arg, 0x10, "0123456789abcdef",
|
||||
width, prec, flags, 0))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'X' :{
|
||||
unsigned long arg;
|
||||
|
||||
PARSE_INT_FORMAT(arg, ap, unsigned);
|
||||
|
||||
if (append_number (state, arg, 0x10, "0123456789ABCDEF",
|
||||
width, prec, flags, 0))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'p' : {
|
||||
unsigned long arg = (unsigned long)va_arg(ap, void*);
|
||||
|
||||
if (append_number (state, arg, 0x10, "0123456789ABCDEF",
|
||||
width, prec, flags, 0))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
case 'n' : {
|
||||
int *arg = va_arg(ap, int*);
|
||||
*arg = state->s - state->str;
|
||||
break;
|
||||
}
|
||||
case '\0' :
|
||||
--format;
|
||||
/* FALLTHROUGH */
|
||||
case '%' :
|
||||
if ((*state->append_char)(state, c))
|
||||
return -1;
|
||||
break;
|
||||
default :
|
||||
if ( (*state->append_char)(state, '%')
|
||||
|| (*state->append_char)(state, c))
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
} else
|
||||
if ((*state->append_char) (state, c))
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifndef HAVE_SNPRINTF
|
||||
int
|
||||
snprintf (char *str, size_t sz, const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
int ret;
|
||||
|
||||
va_start(args, format);
|
||||
ret = vsnprintf (str, sz, format, args);
|
||||
|
||||
#ifdef PARANOIA
|
||||
{
|
||||
int ret2;
|
||||
char *tmp;
|
||||
|
||||
tmp = malloc (sz);
|
||||
if (tmp == NULL)
|
||||
abort ();
|
||||
|
||||
ret2 = vsprintf (tmp, format, args);
|
||||
if (ret != ret2 || strcmp(str, tmp))
|
||||
abort ();
|
||||
free (tmp);
|
||||
}
|
||||
#endif
|
||||
|
||||
va_end(args);
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
#ifndef HAVE_ASPRINTF
|
||||
int
|
||||
asprintf (char **ret, const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
int val;
|
||||
|
||||
va_start(args, format);
|
||||
val = vasprintf (ret, format, args);
|
||||
|
||||
#ifdef PARANOIA
|
||||
{
|
||||
int ret2;
|
||||
char *tmp;
|
||||
tmp = malloc (val + 1);
|
||||
if (tmp == NULL)
|
||||
abort ();
|
||||
|
||||
ret2 = vsprintf (tmp, format, args);
|
||||
if (val != ret2 || strcmp(*ret, tmp))
|
||||
abort ();
|
||||
free (tmp);
|
||||
}
|
||||
#endif
|
||||
|
||||
va_end(args);
|
||||
return val;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_ASNPRINTF
|
||||
int
|
||||
asnprintf (char **ret, size_t max_sz, const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
int val;
|
||||
|
||||
va_start(args, format);
|
||||
val = vasnprintf (ret, max_sz, format, args);
|
||||
|
||||
#ifdef PARANOIA
|
||||
{
|
||||
int ret2;
|
||||
char *tmp;
|
||||
tmp = malloc (val + 1);
|
||||
if (tmp == NULL)
|
||||
abort ();
|
||||
|
||||
ret2 = vsprintf (tmp, format, args);
|
||||
if (val != ret2 || strcmp(*ret, tmp))
|
||||
abort ();
|
||||
free (tmp);
|
||||
}
|
||||
#endif
|
||||
|
||||
va_end(args);
|
||||
return val;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_VASPRINTF
|
||||
int
|
||||
vasprintf (char **ret, const char *format, va_list args)
|
||||
{
|
||||
return vasnprintf (ret, 0, format, args);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#ifndef HAVE_VASNPRINTF
|
||||
int
|
||||
vasnprintf (char **ret, size_t max_sz, const char *format, va_list args)
|
||||
{
|
||||
int st;
|
||||
size_t len;
|
||||
struct state state;
|
||||
|
||||
state.max_sz = max_sz;
|
||||
state.sz = 1;
|
||||
state.str = malloc(state.sz);
|
||||
if (state.str == NULL) {
|
||||
*ret = NULL;
|
||||
return -1;
|
||||
}
|
||||
state.s = state.str;
|
||||
state.theend = state.s + state.sz - 1;
|
||||
state.append_char = as_append_char;
|
||||
state.reserve = as_reserve;
|
||||
|
||||
st = xyzprintf (&state, format, args);
|
||||
if (st) {
|
||||
free (state.str);
|
||||
*ret = NULL;
|
||||
return -1;
|
||||
} else {
|
||||
char *tmp;
|
||||
|
||||
*state.s = '\0';
|
||||
len = state.s - state.str;
|
||||
tmp = realloc (state.str, len+1);
|
||||
if (tmp == NULL) {
|
||||
free (state.str);
|
||||
*ret = NULL;
|
||||
return -1;
|
||||
}
|
||||
*ret = tmp;
|
||||
return len;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_VSNPRINTF
|
||||
int
|
||||
vsnprintf (char *str, size_t sz, const char *format, va_list args)
|
||||
{
|
||||
struct state state;
|
||||
int ret;
|
||||
unsigned char *ustr = (unsigned char *)str;
|
||||
|
||||
state.max_sz = 0;
|
||||
state.sz = sz;
|
||||
state.str = ustr;
|
||||
state.s = ustr;
|
||||
state.theend = ustr + sz - 1;
|
||||
state.append_char = sn_append_char;
|
||||
state.reserve = sn_reserve;
|
||||
|
||||
ret = xyzprintf (&state, format, args);
|
||||
*state.s = '\0';
|
||||
if (ret)
|
||||
return sz;
|
||||
else
|
||||
return state.s - state.str;
|
||||
}
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user