| 1 |
/* Mixmaster version 3 -- (C) 1999 Anonymizer Inc.
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| 2 |
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| 3 |
Mixmaster may be redistributed and modified under certain conditions.
|
| 4 |
This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
|
| 5 |
ANY KIND, either express or implied. See the file COPYRIGHT for
|
| 6 |
details.
|
| 7 |
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| 8 |
Dynamically allocated buffers
|
| 9 |
$Id: buffers.c,v 1.5 2002/09/29 10:09:05 ulfm Exp $ */
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| 10 |
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| 11 |
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| 12 |
#include "mix3.h"
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| 13 |
#include <stdio.h>
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| 14 |
#include <stdlib.h>
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| 15 |
#include <string.h>
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| 16 |
#include <ctype.h>
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| 17 |
#include <stdarg.h>
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| 18 |
#ifdef WIN32
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| 19 |
#include <io.h>
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| 20 |
#endif /* WIN32 */
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| 21 |
#include <assert.h>
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| 22 |
#ifdef POSIX
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| 23 |
#include <unistd.h>
|
| 24 |
#endif /* POSIX */
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| 25 |
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| 26 |
static void fail(void)
|
| 27 |
{
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| 28 |
errlog(ERRORMSG, "Out of memory!\n");
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| 29 |
abort();
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| 30 |
}
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| 31 |
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| 32 |
#define space 128 /* allocate some additional space */
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| 33 |
|
| 34 |
static void alloc(BUFFER *b)
|
| 35 |
{
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| 36 |
b->data = malloc(space);
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| 37 |
if (b->data == NULL)
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| 38 |
fail();
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| 39 |
b->data[0] = 0;
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| 40 |
b->size = space;
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| 41 |
}
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| 42 |
|
| 43 |
#undef buf_new /* DEBUG */
|
| 44 |
BUFFER *buf_new(void)
|
| 45 |
{
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BUFFER *b;
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| 47 |
|
| 48 |
b = malloc(sizeof(BUFFER));
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| 49 |
if (b == NULL)
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| 50 |
fail();
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| 51 |
alloc(b);
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b->length = 0;
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| 53 |
b->ptr = 0;
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| 54 |
b->sensitive = 0;
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| 55 |
|
| 56 |
return (b);
|
| 57 |
}
|
| 58 |
|
| 59 |
#ifdef DEBUG
|
| 60 |
static void sanity_check(BUFFER *b)
|
| 61 |
{
|
| 62 |
assert(b != NULL);
|
| 63 |
assert(b->size > 0);
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| 64 |
assert(b->data != NULL);
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| 65 |
assert(b->length >= 0 && b->length < b->size);
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| 66 |
assert(b->ptr >= 0 && b->ptr <= b->length);
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| 67 |
}
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| 68 |
#else /* not DEBUG */
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| 69 |
#define sanity_check(arg)
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| 70 |
#endif /* else not DEBUG */
|
| 71 |
|
| 72 |
int buf_reset(BUFFER *buffer)
|
| 73 |
{
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| 74 |
sanity_check(buffer);
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| 75 |
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| 76 |
buffer->length = 0;
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| 77 |
buffer->ptr = 0;
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| 78 |
if (buffer->sensitive)
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memset(buffer->data, 0, buffer->size);
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free(buffer->data);
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alloc(buffer);
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| 82 |
return (0);
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| 83 |
}
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|
| 85 |
int buf_free(BUFFER *buffer)
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{
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| 87 |
int err = 0;
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| 88 |
|
| 89 |
if (buffer->sensitive)
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| 90 |
memset(buffer->data, 0, buffer->size);
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| 91 |
free(buffer->data);
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| 92 |
free(buffer);
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| 93 |
return (err);
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}
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| 95 |
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| 96 |
int buf_clear(BUFFER *buffer)
|
| 97 |
{
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| 98 |
sanity_check(buffer);
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| 99 |
buffer->data[0] = '\0';
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| 100 |
buffer->length = 0;
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| 101 |
buffer->ptr = 0;
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| 102 |
return (0);
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| 103 |
}
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| 104 |
|
| 105 |
int buf_append(BUFFER *buffer, byte *msg, int len)
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| 106 |
{
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| 107 |
assert(len >= 0);
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| 108 |
sanity_check(buffer);
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| 109 |
|
| 110 |
if (buffer->length + len >= buffer->size) {
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| 111 |
register byte *new;
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| 112 |
register long newsize;
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| 113 |
|
| 114 |
newsize = 2 * buffer->length; /* double buffer size */
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| 115 |
if (newsize < buffer->length + len + space)
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| 116 |
newsize = buffer->length + len + space;
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| 117 |
new = malloc(newsize);
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| 118 |
if (new == NULL)
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fail();
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| 120 |
memcpy(new, buffer->data, buffer->length);
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| 121 |
if (buffer->sensitive)
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| 122 |
memset(buffer->data, 0, buffer->size);
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free(buffer->data);
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buffer->data = new;
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buffer->size = newsize;
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| 126 |
}
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| 127 |
if (msg != NULL)
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memcpy(buffer->data + buffer->length, msg, len);
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buffer->length += len;
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| 130 |
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| 131 |
buffer->data[buffer->length] = 0;
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| 132 |
return (0);
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| 133 |
}
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| 134 |
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| 135 |
int buf_appendrnd(BUFFER *to, int n)
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| 136 |
{
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| 137 |
buf_append(to, NULL, n);
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| 138 |
rnd_bytes(to->data + to->length - n, n);
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| 139 |
return (0);
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| 140 |
}
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| 141 |
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| 142 |
int buf_appendzero(BUFFER *to, int n)
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| 143 |
{
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| 144 |
buf_append(to, NULL, n);
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| 145 |
memset(to->data + to->length - n, 0, n);
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| 146 |
return (0);
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| 147 |
}
|
| 148 |
|
| 149 |
int buf_setrnd(BUFFER *b, int n)
|
| 150 |
{
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| 151 |
buf_prepare(b, n);
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| 152 |
rnd_bytes(b->data, n);
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| 153 |
return (0);
|
| 154 |
}
|
| 155 |
|
| 156 |
int buf_cat(BUFFER *to, BUFFER *from)
|
| 157 |
{
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| 158 |
return (buf_append(to, from->data, from->length));
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| 159 |
}
|
| 160 |
|
| 161 |
int buf_set(BUFFER *to, BUFFER *from)
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| 162 |
{
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| 163 |
buf_reset(to);
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| 164 |
return (buf_cat(to, from));
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| 165 |
}
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| 166 |
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| 167 |
int buf_appendc(BUFFER *to, byte b)
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| 168 |
{
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| 169 |
return (buf_append(to, &b, 1));
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| 170 |
}
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| 171 |
|
| 172 |
int buf_rest(BUFFER *to, BUFFER *from)
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| 173 |
{
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| 174 |
assert(from != to);
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| 175 |
return (buf_append(to, from->data + from->ptr, from->length - from->ptr));
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| 176 |
}
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| 177 |
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| 178 |
int buf_appends(BUFFER *buffer, char *s)
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| 179 |
{
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| 180 |
return (buf_append(buffer, s, strlen(s)));
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| 181 |
}
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| 182 |
|
| 183 |
int buf_sets(BUFFER *buffer, char *s)
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| 184 |
{
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| 185 |
buf_clear(buffer);
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| 186 |
return (buf_appends(buffer, s));
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| 187 |
}
|
| 188 |
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| 189 |
int buf_setc(BUFFER *buffer, byte c)
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| 190 |
{
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| 191 |
buf_clear(buffer);
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| 192 |
return (buf_appendc(buffer, c));
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| 193 |
}
|
| 194 |
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| 195 |
int buf_nl(BUFFER *b)
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| 196 |
{
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| 197 |
return (buf_append(b, "\n", 1));
|
| 198 |
}
|
| 199 |
|
| 200 |
int buf_vappendf(BUFFER *b, char *fmt, va_list args)
|
| 201 |
{
|
| 202 |
for (; *fmt != '\0'; fmt++)
|
| 203 |
if (*fmt == '%') {
|
| 204 |
int lzero = 0;
|
| 205 |
int longvar = 0;
|
| 206 |
int len = 0;
|
| 207 |
|
| 208 |
for (;;) {
|
| 209 |
if (*++fmt == '\0')
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| 210 |
return (-1);
|
| 211 |
if (*fmt == '%') {
|
| 212 |
buf_appendc(b, '%');
|
| 213 |
break;
|
| 214 |
} else if (*fmt == 'b') { /* extension of printf */
|
| 215 |
buf_cat(b, va_arg(args, BUFFER *));
|
| 216 |
|
| 217 |
break;
|
| 218 |
} else if (*fmt == 'c') {
|
| 219 |
buf_appendc(b, va_arg(args, int));
|
| 220 |
|
| 221 |
break;
|
| 222 |
} else if (*fmt == 's') {
|
| 223 |
buf_appends(b, va_arg(args, char *));
|
| 224 |
|
| 225 |
break;
|
| 226 |
} else if (*fmt == 'd' || *fmt == 'X') {
|
| 227 |
int base, val, sign = 0;
|
| 228 |
BUFFER *out;
|
| 229 |
|
| 230 |
out = buf_new();
|
| 231 |
base = *fmt == 'd' ? 10 : 16;
|
| 232 |
if (longvar)
|
| 233 |
val = va_arg(args, long);
|
| 234 |
|
| 235 |
else
|
| 236 |
val = va_arg(args, int);
|
| 237 |
|
| 238 |
if (val < 0)
|
| 239 |
sign = 1, val = -val;
|
| 240 |
do {
|
| 241 |
if (val % base > 9)
|
| 242 |
buf_appendc(out, val % base - 10 + 'A');
|
| 243 |
else
|
| 244 |
buf_appendc(out, val % base + '0');
|
| 245 |
val /= base;
|
| 246 |
} while (val > 0);
|
| 247 |
if (sign)
|
| 248 |
len--;
|
| 249 |
while (len-- > out->length)
|
| 250 |
buf_appendc(b, lzero ? '0' : ' ');
|
| 251 |
if (sign)
|
| 252 |
buf_appendc(b, '-');
|
| 253 |
for (len = out->length - 1; len >= 0; len--)
|
| 254 |
buf_appendc(b, out->data[len]);
|
| 255 |
buf_free(out);
|
| 256 |
break;
|
| 257 |
} else if (*fmt == 'l')
|
| 258 |
longvar = 1;
|
| 259 |
else if (*fmt == '0' && len == 0)
|
| 260 |
lzero = 1;
|
| 261 |
else if (isdigit(*fmt))
|
| 262 |
len = len * 10 + *fmt - '0';
|
| 263 |
else
|
| 264 |
assert(0);
|
| 265 |
}
|
| 266 |
} else
|
| 267 |
buf_appendc(b, *fmt);
|
| 268 |
return (0);
|
| 269 |
}
|
| 270 |
|
| 271 |
int buf_setf(BUFFER *b, char *fmt, ...)
|
| 272 |
{
|
| 273 |
va_list args;
|
| 274 |
int ret;
|
| 275 |
|
| 276 |
va_start(args, fmt);
|
| 277 |
buf_clear(b);
|
| 278 |
ret = buf_vappendf(b, fmt, args);
|
| 279 |
va_end(args);
|
| 280 |
return (ret);
|
| 281 |
}
|
| 282 |
|
| 283 |
int buf_appendf(BUFFER *b, char *fmt, ...)
|
| 284 |
{
|
| 285 |
va_list args;
|
| 286 |
int ret;
|
| 287 |
|
| 288 |
va_start(args, fmt);
|
| 289 |
ret = buf_vappendf(b, fmt, args);
|
| 290 |
va_end(args);
|
| 291 |
return (ret);
|
| 292 |
}
|
| 293 |
|
| 294 |
int buf_pad(BUFFER *buffer, int size)
|
| 295 |
{
|
| 296 |
assert(size - buffer->length >= 0);
|
| 297 |
buf_appendrnd(buffer, size - buffer->length);
|
| 298 |
return (0);
|
| 299 |
}
|
| 300 |
|
| 301 |
int buf_prepare(BUFFER *buffer, int size)
|
| 302 |
{
|
| 303 |
buf_clear(buffer);
|
| 304 |
buf_append(buffer, NULL, size);
|
| 305 |
return (0);
|
| 306 |
}
|
| 307 |
|
| 308 |
int buf_read(BUFFER *outmsg, FILE *infile)
|
| 309 |
{
|
| 310 |
char buf[BUFSIZE];
|
| 311 |
int n;
|
| 312 |
int err = -1;
|
| 313 |
|
| 314 |
assert(infile != NULL);
|
| 315 |
sanity_check(outmsg);
|
| 316 |
|
| 317 |
for (;;) {
|
| 318 |
n = fread(buf, 1, BUFSIZE, infile);
|
| 319 |
if (n > 0)
|
| 320 |
err = 0;
|
| 321 |
buf_append(outmsg, buf, n);
|
| 322 |
if (n < BUFSIZE)
|
| 323 |
break;
|
| 324 |
#ifdef BUFFER_MAX
|
| 325 |
if (outmsg->length > BUFFER_MAX) {
|
| 326 |
errlog(ERRORMSG, "Message file too large. Giving up.\n");
|
| 327 |
return (1);
|
| 328 |
}
|
| 329 |
#endif /* BUFFER_MAX */
|
| 330 |
}
|
| 331 |
|
| 332 |
#ifdef WIN32
|
| 333 |
if (isatty(fileno(infile)) && isatty(fileno(stdout)))
|
| 334 |
printf("\n");
|
| 335 |
#endif /* WIN32 */
|
| 336 |
|
| 337 |
return (err);
|
| 338 |
}
|
| 339 |
|
| 340 |
int buf_write(BUFFER *buffer, FILE *out)
|
| 341 |
{
|
| 342 |
assert(out != NULL);
|
| 343 |
sanity_check(buffer);
|
| 344 |
|
| 345 |
return (fwrite(buffer->data, 1, buffer->length, out) == buffer->length
|
| 346 |
? 0 : -1);
|
| 347 |
}
|
| 348 |
|
| 349 |
int buf_write_sync(BUFFER *buffer, FILE *out)
|
| 350 |
{
|
| 351 |
int ret = 0;
|
| 352 |
|
| 353 |
if (buf_write(buffer, out) == -1) {
|
| 354 |
fclose(out);
|
| 355 |
return -1;
|
| 356 |
}
|
| 357 |
|
| 358 |
if (fflush(out) != 0)
|
| 359 |
ret = -1;
|
| 360 |
|
| 361 |
#ifdef POSIX
|
| 362 |
/* dir entry not synced */
|
| 363 |
if (fsync(fileno(out)) != 0)
|
| 364 |
ret = -1;
|
| 365 |
#endif /* POSIX */
|
| 366 |
|
| 367 |
if (fclose(out) != 0)
|
| 368 |
ret = -1;
|
| 369 |
|
| 370 |
return ret;
|
| 371 |
}
|
| 372 |
|
| 373 |
int buf_rewind(BUFFER *buffer)
|
| 374 |
{
|
| 375 |
sanity_check(buffer);
|
| 376 |
|
| 377 |
buffer->ptr = 0;
|
| 378 |
return (0);
|
| 379 |
}
|
| 380 |
|
| 381 |
int buf_get(BUFFER *buffer, BUFFER *to, int n)
|
| 382 |
{
|
| 383 |
sanity_check(buffer);
|
| 384 |
sanity_check(to);
|
| 385 |
assert(n > 0);
|
| 386 |
assert(buffer != to);
|
| 387 |
|
| 388 |
buf_clear(to);
|
| 389 |
if (buffer->length - buffer->ptr < n)
|
| 390 |
return (-1);
|
| 391 |
buf_append(to, buffer->data + buffer->ptr, n);
|
| 392 |
buffer->ptr += n;
|
| 393 |
return (0);
|
| 394 |
}
|
| 395 |
|
| 396 |
int buf_getc(BUFFER *buffer)
|
| 397 |
{
|
| 398 |
sanity_check(buffer);
|
| 399 |
if (buffer->ptr == buffer->length)
|
| 400 |
return (-1);
|
| 401 |
else
|
| 402 |
return (buffer->data[buffer->ptr++]);
|
| 403 |
}
|
| 404 |
|
| 405 |
void buf_ungetc(BUFFER *buffer)
|
| 406 |
{
|
| 407 |
sanity_check(buffer);
|
| 408 |
if (buffer->ptr > 0)
|
| 409 |
buffer->ptr--;
|
| 410 |
}
|
| 411 |
|
| 412 |
int buf_getline(BUFFER *buffer, BUFFER *line)
|
| 413 |
{
|
| 414 |
register int i;
|
| 415 |
int ret = 0;
|
| 416 |
int nl = 0;
|
| 417 |
|
| 418 |
sanity_check(buffer);
|
| 419 |
|
| 420 |
if (line != NULL)
|
| 421 |
buf_clear(line);
|
| 422 |
if (buffer->ptr == buffer->length)
|
| 423 |
return (-1);
|
| 424 |
|
| 425 |
for (i = buffer->ptr; i < buffer->length; i++) {
|
| 426 |
if (buffer->data[i] > '\r')
|
| 427 |
continue;
|
| 428 |
if (buffer->data[i] == '\0' || buffer->data[i] == '\n') {
|
| 429 |
nl = 1;
|
| 430 |
break;
|
| 431 |
}
|
| 432 |
if (buffer->data[i] == '\r' &&
|
| 433 |
i + 1 <= buffer->length && buffer->data[i + 1] == '\n') {
|
| 434 |
nl = 2;
|
| 435 |
break;
|
| 436 |
}
|
| 437 |
}
|
| 438 |
|
| 439 |
if (line != NULL)
|
| 440 |
buf_append(line, buffer->data + buffer->ptr, i - buffer->ptr);
|
| 441 |
if (i == buffer->ptr)
|
| 442 |
ret = 1;
|
| 443 |
buffer->ptr = i + nl;
|
| 444 |
|
| 445 |
return (ret);
|
| 446 |
}
|
| 447 |
|
| 448 |
int buf_chop(BUFFER *b)
|
| 449 |
{
|
| 450 |
int i;
|
| 451 |
|
| 452 |
sanity_check(b);
|
| 453 |
|
| 454 |
for (i = 0; i < b->length; i++)
|
| 455 |
if (b->data[i] == '\0' || b->data[i] == '\n' ||
|
| 456 |
(b->data[i] == '\r' && i + 1 < b->length &&
|
| 457 |
b->data[i + 1] == '\n'))
|
| 458 |
b->length = i;
|
| 459 |
b->data[b->length] = 0;
|
| 460 |
return (0);
|
| 461 |
}
|
| 462 |
|
| 463 |
int buf_isheader(BUFFER *buffer)
|
| 464 |
{
|
| 465 |
BUFFER *line;
|
| 466 |
long p;
|
| 467 |
int i;
|
| 468 |
int err;
|
| 469 |
int ret;
|
| 470 |
|
| 471 |
line = buf_new();
|
| 472 |
p = buffer->ptr;
|
| 473 |
ret = 0;
|
| 474 |
err = buf_getline(buffer, line);
|
| 475 |
if (err != 0)
|
| 476 |
goto end;
|
| 477 |
|
| 478 |
for (i = 0; i < line->length; i++) {
|
| 479 |
if (line->data[i] == ' ' || line->data[i] == '\t')
|
| 480 |
break;
|
| 481 |
if (line->data[i] == ':') {
|
| 482 |
ret = 1;
|
| 483 |
break;
|
| 484 |
}
|
| 485 |
}
|
| 486 |
|
| 487 |
end:
|
| 488 |
buffer->ptr = p;
|
| 489 |
buf_free(line);
|
| 490 |
return(ret);
|
| 491 |
}
|
| 492 |
|
| 493 |
int buf_getheader(BUFFER *buffer, BUFFER *field, BUFFER *content)
|
| 494 |
{
|
| 495 |
BUFFER *line;
|
| 496 |
long p;
|
| 497 |
int i;
|
| 498 |
int err;
|
| 499 |
|
| 500 |
line = buf_new();
|
| 501 |
buf_reset(field);
|
| 502 |
buf_reset(content);
|
| 503 |
|
| 504 |
err = buf_getline(buffer, line);
|
| 505 |
if (err != 0)
|
| 506 |
goto end;
|
| 507 |
|
| 508 |
err = -1;
|
| 509 |
for (i = 0; i < line->length; i++) {
|
| 510 |
if (line->data[i] == ' ' || line->data[i] == '\t')
|
| 511 |
break;
|
| 512 |
if (line->data[i] == ':') {
|
| 513 |
err = 0;
|
| 514 |
break;
|
| 515 |
}
|
| 516 |
}
|
| 517 |
if (err == -1 && bufileft(line, "From ")) {
|
| 518 |
buf_set(field, line);
|
| 519 |
err = 0;
|
| 520 |
}
|
| 521 |
if (err == -1) {
|
| 522 |
/* badly formatted message -- try to process anyway */
|
| 523 |
buf_sets(field, "X-Invalid");
|
| 524 |
buf_set(content, line);
|
| 525 |
err = 0;
|
| 526 |
goto end;
|
| 527 |
}
|
| 528 |
buf_append(field, line->data, i);
|
| 529 |
if (i < line->length)
|
| 530 |
i++;
|
| 531 |
else
|
| 532 |
err = 1;
|
| 533 |
while (i < line->length &&
|
| 534 |
(line->data[i] == ' ' || line->data[i] == '\t'))
|
| 535 |
i++;
|
| 536 |
buf_append(content, line->data + i, line->length - i);
|
| 537 |
|
| 538 |
for (;;) {
|
| 539 |
p = buffer->ptr;
|
| 540 |
if (buf_getline(buffer, line) != 0)
|
| 541 |
break;
|
| 542 |
if (line->data[0] != ' ' && line->data[0] != '\t')
|
| 543 |
break;
|
| 544 |
#if 1
|
| 545 |
buf_nl(content);
|
| 546 |
buf_cat(content, line);
|
| 547 |
#else /* end of 1 */
|
| 548 |
buf_appendc(content, ' ');
|
| 549 |
buf_appends(content, line->data + 1);
|
| 550 |
#endif /* else if not 1 */
|
| 551 |
}
|
| 552 |
buffer->ptr = p;
|
| 553 |
end:
|
| 554 |
buf_free(line);
|
| 555 |
return (err);
|
| 556 |
}
|
| 557 |
|
| 558 |
int buf_appendheader(BUFFER *buffer, BUFFER *field, BUFFER *content)
|
| 559 |
{
|
| 560 |
return buf_appendf(buffer, "%b: %b\n", field, content);
|
| 561 |
}
|
| 562 |
|
| 563 |
int buf_lookahead(BUFFER *buffer, BUFFER *line)
|
| 564 |
{
|
| 565 |
long p;
|
| 566 |
int e;
|
| 567 |
|
| 568 |
p = buffer->ptr;
|
| 569 |
e = buf_getline(buffer, line);
|
| 570 |
buffer->ptr = p;
|
| 571 |
return (e);
|
| 572 |
}
|
| 573 |
|
| 574 |
int buf_eq(BUFFER *b1, BUFFER *b2)
|
| 575 |
{
|
| 576 |
sanity_check(b1);
|
| 577 |
sanity_check(b2);
|
| 578 |
|
| 579 |
if (b1->length != b2->length)
|
| 580 |
return (0);
|
| 581 |
if (b1->length > 0 && memcmp(b1->data, b2->data, b1->length) != 0)
|
| 582 |
return (0);
|
| 583 |
return (1);
|
| 584 |
}
|
| 585 |
|
| 586 |
int buf_ieq(BUFFER *b1, BUFFER *b2)
|
| 587 |
{
|
| 588 |
int i;
|
| 589 |
sanity_check(b1);
|
| 590 |
sanity_check(b2);
|
| 591 |
|
| 592 |
if (b1->length != b2->length)
|
| 593 |
return (0);
|
| 594 |
for (i = 0; i < b1->length; i++)
|
| 595 |
if (tolower(b1->data[i]) != tolower(b2->data[i]))
|
| 596 |
return (0);
|
| 597 |
return (1);
|
| 598 |
}
|
| 599 |
|
| 600 |
void buf_move(BUFFER *dest, BUFFER *src)
|
| 601 |
/* equivalent to buf_set(dest, src); buf_reset(src); */
|
| 602 |
{
|
| 603 |
BUFFER temp;
|
| 604 |
sanity_check(src);
|
| 605 |
buf_reset(dest);
|
| 606 |
temp.data = dest->data, temp.size = dest->size;
|
| 607 |
dest->data = src->data, dest->size = src->size, dest->length = src->length;
|
| 608 |
src->data = temp.data, src->size = temp.size, src->length = 0;
|
| 609 |
dest->ptr = 0, src->ptr = 0;
|
| 610 |
}
|
| 611 |
|
| 612 |
int buf_appendl(BUFFER *b, long l)
|
| 613 |
{
|
| 614 |
buf_appendc(b, (l >> 24) & 255);
|
| 615 |
buf_appendc(b, (l >> 16) & 255);
|
| 616 |
buf_appendc(b, (l >> 8) & 255);
|
| 617 |
buf_appendc(b, l & 255);
|
| 618 |
return (0);
|
| 619 |
}
|
| 620 |
|
| 621 |
int buf_appendl_lo(BUFFER *b, long l)
|
| 622 |
{
|
| 623 |
buf_appendc(b, l & 255);
|
| 624 |
buf_appendc(b, (l >> 8) & 255);
|
| 625 |
buf_appendc(b, (l >> 16) & 255);
|
| 626 |
buf_appendc(b, (l >> 24) & 255);
|
| 627 |
return (0);
|
| 628 |
}
|
| 629 |
|
| 630 |
long buf_getl(BUFFER *b)
|
| 631 |
{
|
| 632 |
long l;
|
| 633 |
|
| 634 |
if (b->ptr + 4 > b->length)
|
| 635 |
return (-1);
|
| 636 |
l = buf_getc(b) << 24;
|
| 637 |
l += buf_getc(b) << 16;
|
| 638 |
l += buf_getc(b) << 8;
|
| 639 |
l += buf_getc(b);
|
| 640 |
return (l);
|
| 641 |
}
|
| 642 |
|
| 643 |
long buf_getl_lo(BUFFER *b)
|
| 644 |
{
|
| 645 |
long l;
|
| 646 |
|
| 647 |
if (b->ptr + 4 > b->length)
|
| 648 |
return (-1);
|
| 649 |
l = buf_getc(b);
|
| 650 |
l += buf_getc(b) << 8;
|
| 651 |
l += buf_getc(b) << 16;
|
| 652 |
l += buf_getc(b) << 24;
|
| 653 |
|
| 654 |
return (l);
|
| 655 |
}
|
| 656 |
|
| 657 |
int buf_appendi(BUFFER *b, int i)
|
| 658 |
{
|
| 659 |
buf_appendc(b, (i >> 8) & 255);
|
| 660 |
buf_appendc(b, i & 255);
|
| 661 |
return (0);
|
| 662 |
}
|
| 663 |
|
| 664 |
int buf_appendi_lo(BUFFER *b, int i)
|
| 665 |
{
|
| 666 |
buf_appendc(b, i & 255);
|
| 667 |
buf_appendc(b, (i >> 8) & 255);
|
| 668 |
return (0);
|
| 669 |
}
|
| 670 |
|
| 671 |
int buf_geti(BUFFER *b)
|
| 672 |
{
|
| 673 |
int i;
|
| 674 |
|
| 675 |
if (b->ptr + 2 > b->length)
|
| 676 |
return (-1);
|
| 677 |
i = buf_getc(b) << 8;
|
| 678 |
i += buf_getc(b);
|
| 679 |
return (i);
|
| 680 |
}
|
| 681 |
|
| 682 |
int buf_geti_lo(BUFFER *b)
|
| 683 |
{
|
| 684 |
int i;
|
| 685 |
|
| 686 |
if (b->ptr + 2 > b->length)
|
| 687 |
return (-1);
|
| 688 |
i = buf_getc(b);
|
| 689 |
i += buf_getc(b) << 8;
|
| 690 |
return (i);
|
| 691 |
}
|
| 692 |
|
| 693 |
int buf_getb(BUFFER *b, BUFFER *p)
|
| 694 |
{
|
| 695 |
long l;
|
| 696 |
|
| 697 |
l = buf_getl(b);
|
| 698 |
return (buf_get(b, p, l));
|
| 699 |
}
|
| 700 |
|
| 701 |
int buf_appendb(BUFFER *b, BUFFER *p)
|
| 702 |
{
|
| 703 |
long l;
|
| 704 |
|
| 705 |
l = p->length;
|
| 706 |
buf_appendl(b, l);
|
| 707 |
return (buf_cat(b, p));
|
| 708 |
}
|
| 709 |
|
| 710 |
int bufleft(BUFFER *b, char *k) {
|
| 711 |
return(strleft(b->data, k));
|
| 712 |
}
|
| 713 |
|
| 714 |
int bufileft(BUFFER *b, char *k) {
|
| 715 |
return(strileft(b->data, k));
|
| 716 |
}
|
| 717 |
|
| 718 |
int buffind(BUFFER *b, char *k) {
|
| 719 |
return(strfind(b->data, k));
|
| 720 |
}
|
| 721 |
|
| 722 |
int bufifind(BUFFER *b, char *k) {
|
| 723 |
return(strifind(b->data, k));
|
| 724 |
}
|
| 725 |
|
| 726 |
int bufiright(BUFFER *b, char *k) {
|
| 727 |
int l = strlen(k);
|
| 728 |
if (l >= b->length)
|
| 729 |
return (strieq(b->data + b->length - l, k));
|
| 730 |
return(0);
|
| 731 |
}
|
| 732 |
|
| 733 |
int bufeq(BUFFER *b, char *k) {
|
| 734 |
return(streq(b->data, k));
|
| 735 |
}
|
| 736 |
|
| 737 |
int bufieq(BUFFER *b, char *k) {
|
| 738 |
return(strieq(b->data, k));
|
| 739 |
}
|
| 740 |
|
| 741 |
/* void buf_cut_out(BUFFER *buffer, BUFFER *cut_out, BUFFER *rest,
|
| 742 |
* int from, int len);
|
| 743 |
*
|
| 744 |
* Cut a chunk out of the buffer.
|
| 745 |
*
|
| 746 |
* Starting with from, len bytes are cut out of buffer. The chunk
|
| 747 |
* of text that has been cut out is returned in cut_out, the
|
| 748 |
* remainings of buffer are returned in rest.
|
| 749 |
*
|
| 750 |
* This function was added by Gerd Beuster. (gb@uni-koblenz.de)
|
| 751 |
*/
|
| 752 |
|
| 753 |
void buf_cut_out(BUFFER *buffer, BUFFER *cut_out, BUFFER *rest,
|
| 754 |
int from, int len){
|
| 755 |
|
| 756 |
assert((len >= 0) && (from >= 0));
|
| 757 |
assert(from+len <= buffer->length);
|
| 758 |
assert(cut_out != rest);
|
| 759 |
|
| 760 |
buffer->ptr = 0;
|
| 761 |
if(from > 0)
|
| 762 |
buf_get(buffer, rest, from);
|
| 763 |
buf_get(buffer, cut_out, len);
|
| 764 |
buf_rest(rest, buffer);
|
| 765 |
}
|
| 766 |
|
| 767 |
|
| 768 |
#ifdef DEBUG
|
| 769 |
/* check for memory leaks */
|
| 770 |
#undef malloc
|
| 771 |
#undef free
|
| 772 |
void *malloc(size_t size);
|
| 773 |
void free(void *ptr);
|
| 774 |
#define max 100000
|
| 775 |
static int n=0;
|
| 776 |
static void *m[max];
|
| 777 |
static char *mm[max];
|
| 778 |
|
| 779 |
void mix3_leaks(void) {
|
| 780 |
int i, ok=1;
|
| 781 |
for (i = 0; i < n; i++)
|
| 782 |
if (m[i]) {
|
| 783 |
fprintf(stderr, "Leak [%d] %s\n", i, mm[i]);
|
| 784 |
ok = 0;
|
| 785 |
}
|
| 786 |
if (ok)
|
| 787 |
fprintf(stderr, "No memory leaks.\n");
|
| 788 |
}
|
| 789 |
|
| 790 |
void *mix3_malloc(size_t size) {
|
| 791 |
void *ptr;
|
| 792 |
if (n == 0)
|
| 793 |
atexit(mix3_leaks);
|
| 794 |
ptr = malloc(size);
|
| 795 |
if (n >= max) abort();
|
| 796 |
m[n++] = ptr;
|
| 797 |
mm[n] = "?";
|
| 798 |
return(ptr);
|
| 799 |
}
|
| 800 |
|
| 801 |
void mix3_free(void *ptr) {
|
| 802 |
int i;
|
| 803 |
for (i = 0; i < n; i++)
|
| 804 |
if (m[i] == ptr) {
|
| 805 |
m[i] = 0;
|
| 806 |
break;
|
| 807 |
}
|
| 808 |
free(ptr);
|
| 809 |
}
|
| 810 |
|
| 811 |
BUFFER *mix3_bufnew(char *file, int line, char *func) {
|
| 812 |
mm[n] = malloc(strlen(file) + strlen(func) + 15);
|
| 813 |
sprintf(mm[n], "in %s %s:%d", func, file, line);
|
| 814 |
return(buf_new());
|
| 815 |
}
|
| 816 |
#endif /* DEBUG */
|
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