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chanBlb.c
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/*
* pthreadChannel - an implementation of channels for pthreads
* Copyright (C) 2016-2024 G. David Butler <gdb@dbSystems.com>
*
* This file is part of pthreadChannel
*
* pthreadChannel is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* pthreadChannel is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <pthread.h>
#include "chan.h"
#include "chanBlb.h"
unsigned int
chanBlb_tSize(
unsigned int l
){
return (
l > sizeof (chanBlb_t) - (unsigned long)&((chanBlb_t *)0)->b
? l + (unsigned long)&((chanBlb_t *)0)->b
: sizeof (chanBlb_t)
);
}
struct chanBlbD {
pthread_mutex_t m; /* destructor state mutex */
unsigned int s; /* destructor state */
};
/**********************************************************/
struct chanBlbE {
void *(*ma)(void *, unsigned long);
void (*mf)(void *);
void (*d)(void *); /* destructor */
struct chanBlbD *ds;
chan_t *c;
void *x;
unsigned int (*xo)(void *, const void *, unsigned int);
void (*xc)(void *);
void *f;
void (*fc)(void *);
};
static void *
chanNfE(
void *v
){
#define V ((struct chanBlbE *)v)
chanBlb_t *m;
chanArr_t p[1];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpGet;
while (chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsGet) {
unsigned int l;
unsigned int i;
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (l = 0, i = 1; l < m->l && (i = V->xo(V->x, m->b + l, m->l - l)) > 0; l += i);
pthread_cleanup_pop(1); /* V->mf(m) */
if (!i)
break;
}
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static void *
chanNsE(
void *v
){
#define V ((struct chanBlbE *)v)
chanBlb_t *m;
chanArr_t p[1];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpGet;
while (chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsGet) {
unsigned char *t;
unsigned int o;
unsigned int l;
unsigned int i;
unsigned char b[16];
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (l = m->l, o = sizeof (b); l && o; l /= 10)
b[--o] = l % 10 + '0';
if (!l) {
i = sizeof (b) - o;
l = i + 1 + m->l + 1;
if (!(t = V->ma(0, l)))
l = 0;
}
if (l) {
unsigned char *s1;
unsigned char *s2;
pthread_cleanup_push((void(*)(void*))V->mf, t);
for (s2 = t, s1 = &b[o]; i; --i, ++s2, ++s1)
*s2 = *s1;
*s2++ = ':';
for (s1 = m->b, o = m->l; o; --o, ++s2, ++s1)
*s2 = *s1;
*s2 = ',';
for (o = 0; o < l && (i = V->xo(V->x, t + o, l - o)) > 0; o += i);
pthread_cleanup_pop(1); /* V->mf(t) */
} else
i = 0;
pthread_cleanup_pop(1); /* V->mf(m) */
if (!i)
break;
}
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static void *
chanN0E(
void *v
){
#define V ((struct chanBlbE *)v)
chanBlb_t *m;
chanArr_t p[1];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpGet;
while (chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsGet) {
unsigned char *t;
unsigned int o;
unsigned int l;
unsigned int i;
pthread_cleanup_push((void(*)(void*))V->mf, m);
l = m->l + 6;
if (!(t = V->ma(0, l)))
l = 0;
if (l) {
unsigned char *s1;
unsigned char *s2;
pthread_cleanup_push((void(*)(void*))V->mf, t);
for (s2 = t, s1 = m->b, o = m->l; o; --o, ++s2, ++s1)
*s2 = *s1;
*s2++ = ']';
*s2++ = ']';
*s2++ = '>';
*s2++ = ']';
*s2++ = ']';
*s2 = '>';
for (o = 0; o < l && (i = V->xo(V->x, t + o, l - o)) > 0; o += i);
pthread_cleanup_pop(1); /* V->mf(t) */
} else
i = 0;
pthread_cleanup_pop(1); /* V->mf(m) */
if (!i)
break;
}
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static void *
chanN1E(
void *v
){
#define V ((struct chanBlbE *)v)
chanBlb_t *m;
chanArr_t p[1];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpGet;
while (chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsGet) {
unsigned char *t;
unsigned int o;
unsigned int l;
unsigned int i;
unsigned char b[16];
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (l = m->l, o = sizeof (b); l && o; l /= 10)
b[--o] = l % 10 + '0';
if (!l) {
i = sizeof (b) - o;
if (m->l)
l = 2 + i + 1 + m->l + 4;
else
l = 4;
if (!(t = V->ma(0, l)))
l = 0;
}
if (l) {
unsigned char *s1;
unsigned char *s2;
pthread_cleanup_push((void(*)(void*))V->mf, t);
s2 = t;
if (m->l) {
*s2++ = '\n';
*s2++ = '#';
for (s1 = &b[o]; i; --i, ++s2, ++s1)
*s2 = *s1;
*s2++ = '\n';
for (s1 = m->b, o = m->l; o; --o, ++s2, ++s1)
*s2 = *s1;
}
*s2++ = '\n';
*s2++ = '#';
*s2++ = '#';
*s2 = '\n';
for (o = 0; o < l && (i = V->xo(V->x, t + o, l - o)) > 0; o += i);
pthread_cleanup_pop(1); /* V->mf(t) */
} else
i = 0;
pthread_cleanup_pop(1); /* V->mf(m) */
if (!i)
break;
}
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
/**********************************************************/
struct chanBlbI {
void *(*ma)(void *, unsigned long);
void (*mf)(void *);
void (*d)(void *); /* destructor */
struct chanBlbD *ds;
chan_t *c;
chanBlb_t *b;
unsigned int l;
void *x;
unsigned int (*xo)(void *, void *, unsigned int);
void (*xc)(void *);
void *f;
void (*fc)(void *);
};
static void *
chanNfI(
void *v
){
#define V ((struct chanBlbI *)v)
chanBlb_t *m;
chanArr_t p[1];
unsigned int i;
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpPut;
if (V->b) {
m = V->b;
V->b = 0;
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
goto bad;
}
while ((m = V->ma(0, chanBlb_tSize(V->l)))) {
void *t;
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = V->xo(V->x, m->b, V->l);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
break;
m->l = i;
if ((t = V->ma(m, chanBlb_tSize(m->l))))
m = t;
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
break;
}
bad:
V->mf(m);
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static unsigned int
chanBlbConsume(
void (*f)(void *)
,chanBlb_t **b
,void *d
,unsigned int l
){
unsigned int i;
unsigned int j;
for (i = 0; i < l && i < (*b)->l; ++i)
*((unsigned char *)d + i) = *((*b)->b + i);
(*b)->l -= i;
if ((*b)->l)
for (j = 0; j < (*b)->l; ++j)
*((*b)->b + j) = *((*b)->b + i + j);
else {
f(*b);
*b = 0;
}
return (i);
}
static void *
chanNsI(
void *v
){
#define V ((struct chanBlbI *)v)
chanBlb_t *m;
chanArr_t p[1];
unsigned int i0;
unsigned int i;
char b[16];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpPut;
i0 = 0;
while ((i = V->b ? chanBlbConsume(V->mf, &V->b, b + i0, sizeof (b) - i0)
: V->xo(V->x, b + i0, sizeof (b) - i0)) > 0) {
unsigned int i1;
unsigned int i2;
unsigned int i3;
i0 += i;
for (i1 = 0, i2 = 0; i1 < i0 && b[i1] <= '9' && b[i1] >= '0'; ++i1)
i2 = i2 * 10 + (b[i1] - '0');
if (i1 == i0 && i0 < (int)sizeof (b))
continue;
if (i1 == i0
|| b[i1++] != ':'
|| (V->l && V->l < i2)
|| !(m = V->ma(0, chanBlb_tSize(i2))))
break;
m->l = i2;
for (i3 = 0; i3 < i2 && i1 < i0;)
*(m->b + i3++) = b[i1++];
for (i2 = 0; i1 < i0;)
b[i2++] = b[i1++];
i0 = i2;
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (i2 = m->l; i3 < i2 && (i = V->b ? chanBlbConsume(V->mf, &V->b, m->b + i3, i2 - i3)
: V->xo(V->x, m->b + i3, i2 - i3)) > 0; i3 += i);
if (i > 0) {
if ((i0 && b[--i0] == ',')
|| (!i0 && (i = V->xo(V->x, b, 1)) == 1 && b[0] == ','))
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
else
i = 0;
} else
i = 0;
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m);
break;
}
}
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static void *
chanN0I(
void *v
){
#define V ((struct chanBlbI *)v)
chanBlb_t *m;
chanArr_t p[1];
unsigned int bs;
unsigned int i0;
unsigned int i1;
unsigned int i;
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
if (V->l)
bs = V->l;
else
bs = 65536; /* when zero maxSize, balance data rate, io() call overhead and realloc() release policy */
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpPut;
i1 = 0;
if (V->b) {
m = V->b;
V->b = 0;
i = i0 = m->l;
goto next;
} else if (!(m = V->ma(0, chanBlb_tSize(bs))))
goto bad;
else
i0 = bs;
for (;;) {
chanBlb_t *m1;
void *tv;
unsigned char *s1;
unsigned char *s2;
unsigned int i2;
for (; i1 < i0; i1 += i) {
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = V->xo(V->x, m->b + i1, i0 - i1);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
goto bad;
next:
for (i2 = (i1 > 4 ? 5 : i1) + i, s1 = m->b + i1 + i - i2; i2 > 5; --i2, ++s1)
if (*(s1 + 0) == ']'
&& *(s1 + 1) == ']'
&& *(s1 + 2) == '>'
&& *(s1 + 3) == ']'
&& *(s1 + 4) == ']'
&& *(s1 + 5) == '>')
goto found;
}
if (!V->l) {
i0 += bs;
if (!(tv = V->ma(m, chanBlb_tSize(i0))))
goto bad;
m = tv;
continue;
}
goto bad;
found:
m->l = i1 + i - i2;
i2 -= 6;
s1 += 6;
i0 = bs;
if (!(m1 = V->ma(0, chanBlb_tSize(i0))))
goto bad;
for (i1 = i2, s2 = m1->b; i1; --i1, ++s1, ++s2)
*s2 = *s1;
if ((tv = V->ma(m, chanBlb_tSize(m->l))))
m = tv;
pthread_cleanup_push((void(*)(void*))V->mf, m);
pthread_cleanup_push((void(*)(void*))V->mf, m1);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m1) */
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
m = m1;
if ((i = i2))
goto next;
}
bad:
V->mf(m);
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef X
#undef V
}
static void *
chanN1I(
void *v
){
#define V ((struct chanBlbI *)v)
chanBlb_t *m;
chanArr_t p[1];
unsigned int i0;
unsigned int i1;
int i;
char b[16];
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpPut;
m = 0;
i0 = 0;
i1 = 0;
while ((i = V->b ? chanBlbConsume(V->mf, &V->b, b + i1, sizeof (b) - i1)
: V->xo(V->x, b + i1, sizeof (b) - i1)) > 0) {
void *tv;
unsigned int i2;
unsigned int i3;
unsigned int i4;
i1 += i;
while (i1 > 3) {
i2 = 0;
if (b[i2++] != '\n'
|| b[i2++] != '#')
goto bad;
for (i3 = 0; i2 < i1 && b[i2] <= '9' && b[i2] >= '0'; ++i2)
i3 = i3 * 10 + (b[i2] - '0');
if (i2 == i1) {
if (i1 < (int)sizeof (b))
break;
goto bad;
}
if (!i3) {
if (b[i2++] != '#'
|| b[i2++] != '\n'
|| chanOne(0, sizeof (p) / sizeof (p[0]), p) != 1 || p[0].s != chanOsPut)
goto bad;
m = 0;
i0 = 0;
for (; i2 < i1; ++i3, ++i2)
b[i3] = b[i2];
i1 = i3;
continue;
}
i4 = i0 + i3;
if (b[i2++] != '\n'
|| (V->l && V->l < i4)
|| !(tv = V->ma(m, chanBlb_tSize(i4))))
goto bad;
m = tv;
m->l = i4;
for (; i3 && i2 < i1; --i3, ++i0, ++i2)
*(m->b + i0) = b[i2];
for (i4 = 0; i2 < i1; ++i4, ++i2)
b[i4] = b[i2];
i1 = i4;
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (; i3 && (i = V->b ? chanBlbConsume(V->mf, &V->b, m->b + i0, i3)
: V->xo(V->x, m->b + i0, i3)) > 0; i3 -= i, i0 += i);
pthread_cleanup_pop(0);
if (i <= 0)
goto bad;
}
}
bad:
V->mf(m);
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef V
}
static void *
chanH1I(
void *v
){
#define V ((struct chanBlbI *)v)
chanBlb_t *m;
chanArr_t p[1];
unsigned int bs;
unsigned int i0;
unsigned int i1;
unsigned int i;
pthread_cleanup_push((void(*)(void*))V->mf, v);
pthread_cleanup_push((void(*)(void*))V->d, v);
pthread_cleanup_push((void(*)(void*))chanClose, V->c);
pthread_cleanup_push((void(*)(void*))chanShut, V->c);
if (V->l)
bs = V->l;
else
bs = 65536; /* when zero maxSize, balance data rate, io() call overhead and realloc() release policy */
p[0].c = V->c;
p[0].v = (void **)&m;
p[0].o = chanOpPut;
i1 = 0;
if (V->b) {
m = V->b;
V->b = 0;
i = i0 = m->l;
goto nextHeaders;
} else if (!(m = V->ma(0, chanBlb_tSize(bs))))
goto bad;
else
i0 = bs;
for (;;) {
chanBlb_t *m1;
void *tv;
unsigned char *s1;
unsigned char *s2;
unsigned int cl;
unsigned int ch;
unsigned int i2;
unsigned int i3;
for (; i1 < i0; i1 += i) {
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = V->xo(V->x, m->b + i1, i0 - i1);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
goto bad;
nextHeaders:
cl = 0;
ch = 0;
for (i2 = (i1 > 27 ? 28 : i1) + i, s1 = m->b + i1 + i - i2; i2; --i2, ++s1)
switch (*s1) {
case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07:
case 0x08: case 0x0b: case 0x0c: case 0x0e: case 0x0f:
case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17:
case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f:
case 0x7f:
goto bad;
case '\r': /* 0x0d */
if (i2 < 4)
break;
if (*(s1 + 1) != '\n')
goto bad;
switch (*(s1 + 2)) {
case '\r': /* 0x0d */
if (*(s1 + 3) != '\n')
goto bad;
i2 -= 4;
s1 += 4;
goto endHeaders;
case 'c': case 'C':
if (!cl && i2 > 18 /* \r\ncontent-length:0 */
&& (*(s1 + 9) == '-') /* easy disqual */
&& (*(s1 + 16) == ':') /* easy disqual */
/* && (*(s1 + 0) == '\r') */
/* && (*(s1 + 1) == '\n') */
/* && (*(s1 + 2) == 'C' || *(s1 + 2) == 'c') */
&& (*(s1 + 3) == 'o' || *(s1 + 3) == 'O')
&& (*(s1 + 4) == 'n' || *(s1 + 4) == 'N')
&& (*(s1 + 5) == 't' || *(s1 + 5) == 'T')
&& (*(s1 + 6) == 'e' || *(s1 + 6) == 'E')
&& (*(s1 + 7) == 'n' || *(s1 + 7) == 'N')
&& (*(s1 + 8) == 't' || *(s1 + 8) == 'T')
/* && (*(s1 + 9) == '-') */
&& (*(s1 + 10) == 'L' || *(s1 + 10) == 'l')
&& (*(s1 + 11) == 'e' || *(s1 + 11) == 'E')
&& (*(s1 + 12) == 'n' || *(s1 + 12) == 'N')
&& (*(s1 + 13) == 'g' || *(s1 + 13) == 'G')
&& (*(s1 + 14) == 't' || *(s1 + 14) == 'T')
&& (*(s1 + 15) == 'h' || *(s1 + 15) == 'H')
/* && (*(s1 + 16) == ':') */
) {
for (i3 = i2 - 17, s2 = s1 + 17; i3 && (*s2 == ' ' || *s2 == '\t'); --i3, ++s2);
for (; i3 && *s2 <= '9' && *s2 >= '0'; --i3, ++s2)
cl = cl * 10 + (*s2 - '0');
i2 = i3 + 1;
s1 = s2 - 1;
}
break;
case 't': case 'T':
if (!ch && i2 > 27 /* \r\ntransfer-encoding:chunked */
&& (*(s1 + 10) == '-') /* easy disqual */
&& (*(s1 + 19) == ':') /* easy disqual */
/* && (*(s1 + 0) == '\r') */
/* && (*(s1 + 1) == '\n') */
/* && (*(s1 + 2) == 'T' || *(s1 + 2) == 't') */
&& (*(s1 + 3) == 'r' || *(s1 + 3) == 'R')
&& (*(s1 + 4) == 'a' || *(s1 + 4) == 'A')
&& (*(s1 + 5) == 'n' || *(s1 + 5) == 'N')
&& (*(s1 + 6) == 's' || *(s1 + 6) == 'S')
&& (*(s1 + 7) == 'f' || *(s1 + 7) == 'F')
&& (*(s1 + 8) == 'e' || *(s1 + 8) == 'E')
&& (*(s1 + 9) == 'r' || *(s1 + 9) == 'R')
/* && (*(s1 + 10) == '-') */
&& (*(s1 + 11) == 'E' || *(s1 + 11) == 'e')
&& (*(s1 + 12) == 'n' || *(s1 + 12) == 'N')
&& (*(s1 + 13) == 'c' || *(s1 + 13) == 'C')
&& (*(s1 + 14) == 'o' || *(s1 + 14) == 'O')
&& (*(s1 + 15) == 'd' || *(s1 + 15) == 'D')
&& (*(s1 + 16) == 'i' || *(s1 + 16) == 'I')
&& (*(s1 + 17) == 'n' || *(s1 + 17) == 'N')
&& (*(s1 + 18) == 'g' || *(s1 + 18) == 'G')
/* && (*(s1 + 19) == ':') */
) {
for (i3 = i2 - 20, s2 = s1 + 20; i3 > 6; --i3, ++s2) {
for (; i3 > 6 && *s2 != 'c' && *s2 != 'C' && *s2 != '\r' && *s2 != '\n'; --i3, ++s2);
if (i3 > 6
/* && (*(s2 + 0) == 'c' || *(s2 + 0) == 'C') */
&& (*(s2 + 1) == 'h' || *(s2 + 1) == 'H')
&& (*(s2 + 2) == 'u' || *(s2 + 2) == 'U')
&& (*(s2 + 3) == 'n' || *(s2 + 3) == 'N')
&& (*(s2 + 4) == 'k' || *(s2 + 4) == 'K')
&& (*(s2 + 5) == 'e' || *(s2 + 5) == 'E')
&& (*(s2 + 6) == 'd' || *(s2 + 6) == 'D')
) {
ch = 1;
i3 -= 7;
s2 += 7;
break;
}
}
i2 = i3 + 1;
s1 = s2 - 1;
}
break;
default:
break;
}
break;
default:
break;
}
}
if (!V->l) {
i0 += bs;
if (!(tv = V->ma(m, chanBlb_tSize(i0))))
goto bad;
m = tv;
continue;
}
goto bad;
endHeaders:
m->l = i1 + i - i2;
i1 = m->l;
s2 = m->b;
if (i1 < 11
|| *s2++ == ' ')
goto bad;
for (i1 -= 1; i1 && *s2 != ' '; --i1, ++s2);
if (i1 < 10
|| *s2++ != ' '
|| *s2++ != '/')
goto bad;
for (i1 -= 2; i1 && *s2 != ' '; --i1, ++s2);
if (i1 < 9
|| *s2++ != ' '
|| *s2++ != 'H'
|| *s2++ != 'T'
|| *s2++ != 'T'
|| *s2++ != 'P'
|| *s2 != '/')
goto bad;
if (V->l) {
if (cl > i2)
goto bad;
if (ch && !i2)
goto bad;
i0 = bs;
} else {
if (cl > i2)
i0 = cl;
else
i0 = bs;
}
if (!(m1 = V->ma(0, chanBlb_tSize(i0))))
goto bad;
for (i1 = i2, s2 = m1->b; i1; --i1, ++s2, ++s1)
*s2 = *s1;
if ((tv = V->ma(m, chanBlb_tSize(m->l))))
m = tv;
pthread_cleanup_push((void(*)(void*))V->mf, m);
pthread_cleanup_push((void(*)(void*))V->mf, m1);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m1) */
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
m = m1;
if (ch) {
for (;;) {
for (i1 = i2; ; i1 += i) {
for (ch = 0, i2 = i1, s1 = m->b; i2; --i2, ++s1)
switch (*s1) {
case ';':
for (; i2 && *s1 != '\r'; --i2, ++s1);
/* FALLTHROUGH */
case '\r':
if (i2 < 2)
break;
if (*(s1 + 1) != '\n')
goto bad;
i2 -= 2;
s1 += 2;
goto sizeHeader;
case '0': case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
ch = ch * 16 + (*s1 - '0');
break;
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
ch = ch * 16 + 10 + (*s1 - 'A');
break;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
ch = ch * 16 + 10 + (*s1 - 'a');
break;
default:
goto bad;
}
if (i1 == i0)
goto bad;
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = V->xo(V->x, m->b + i1, i0 - i1);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
goto bad;
}
sizeHeader:
if (!ch)
break;
ch += 2;
m->l = ch + i1 - i2;
if (V->l && m->l > V->l)
goto bad;
i0 = bs;
if (!(m1 = V->ma(0, chanBlb_tSize(i0))))
goto bad;
if (i2 > ch) {
for (i1 = i2 - ch, s2 = m1->b, s1 = m->b + m->l; i1; --i1, ++s1, ++s2)
*s2 = *s1;
if ((tv = V->ma(m, chanBlb_tSize(m->l))))
m = tv;
} else if (i2 < ch) {
if (!(tv = V->ma(m, chanBlb_tSize(m->l)))) {
V->mf(m1);
goto bad;
}
m = tv;
s1 = m->b + i1 - i2;
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (s1 = m->b + i1 - i2; i2 < ch && (i = V->xo(V->x, s1 + i2, ch - i2)) > 0; i2 += i);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
}
i2 -= ch;
pthread_cleanup_push((void(*)(void*))V->mf, m);
pthread_cleanup_push((void(*)(void*))V->mf, m1);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m1) */
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
m = m1;
}
for (i1 -= i2, i = i2; ; ) {
for (i2 = (i1 > 2 ? 3 : i1) + i, s1 = m->b + i1 + i - i2; i2; --i2, ++s1)
switch (*s1) {
case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07:
case 0x08: case 0x0b: case 0x0c: case 0x0e: case 0x0f:
case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17:
case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f:
case 0x7f:
goto bad;
case '\r': /* 0x0d */
if (i2 < 4)
break;
if (*(s1 + 1) != '\n')
goto bad;
if (*(s1 + 2) != '\r')
break;
if (*(s1 + 3) != '\n')
goto bad;
i2 -= 4;
s1 += 4;
goto endTrailers;
default:
break;
}
i1 += i;
if (i1 == i0) {
if (!V->l) {
i0 += bs;
if (!(tv = V->ma(m, chanBlb_tSize(i0))))
goto bad;
m = tv;
} else
goto bad;
}
pthread_cleanup_push((void(*)(void*))V->mf, m);
i = V->xo(V->x, m->b + i1, i0 - i1);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i)
goto bad;
}
endTrailers:
cl = i1 + i - i2;
i2 = i1 + i;
}
if (cl) {
i0 = bs;
if (!(m1 = V->ma(0, chanBlb_tSize(i0))))
goto bad;
if (i2 > cl) {
for (i1 = i0, s2 = m1->b, s1 = m->b + cl; i1; --i1, ++s2, ++s1)
*s2 = *s1;
if ((tv = V->ma(m, chanBlb_tSize(cl))))
m = tv;
} else if (i2 < cl) {
pthread_cleanup_push((void(*)(void*))V->mf, m);
for (s1 = m->b; i2 < cl && (i = V->xo(V->x, s1 + i2, cl - i2)) > 0; i2 += i);
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
}
i2 -= cl;
m->l = cl;
cl = 0;
pthread_cleanup_push((void(*)(void*))V->mf, m);
pthread_cleanup_push((void(*)(void*))V->mf, m1);
i = chanOne(0, sizeof (p) / sizeof (p[0]), p) == 1 && p[0].s == chanOsPut;
pthread_cleanup_pop(0); /* V->mf(m1) */
pthread_cleanup_pop(0); /* V->mf(m) */
if (!i) {
V->mf(m1);
goto bad;
}
m = m1;
}
if ((i = i2))
goto nextHeaders;
}
bad:
V->mf(m);
pthread_cleanup_pop(1); /* chanShut(V->c) */
pthread_cleanup_pop(1); /* chanClose(V->c) */
pthread_cleanup_pop(1); /* V->d(v) */
pthread_cleanup_pop(1); /* V->mf(v) */
return (0);
#undef X
#undef V
}
/**********************************************************/
static void
finE(
void *v
){
#define V ((struct chanBlbE *)v)
if (V->xc)