static int
vbf_fetch_chunked(struct busyobj *bo, struct http_conn *htc)
{
int i;
char buf[20]; /* XXX: 20 is arbitrary */
unsigned u;
ssize_t cl;
assert(htc->body_status == BS_CHUNKED);
do {
/* Skip leading whitespace */
do {
if (HTTP1_Read(htc, buf, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
} while (vct_islws(buf[0]));
if (!vct_ishex(buf[0]))
return (VFP_Error(bo, "chunked header non-hex"));
/* Collect hex digits, skipping leading zeros */
for (u = 1; u < sizeof buf; u++) {
do {
if (HTTP1_Read(htc, buf + u, 1) <= 0)
return (VFP_Error(bo,
"chunked read err"));
} while (u == 1 && buf[0] == '0' && buf[u] == '0');
if (!vct_ishex(buf[u]))
break;
}
if (u >= sizeof buf)
return (VFP_Error(bo,"chunked header too long"));
/* Skip trailing white space */
while(vct_islws(buf[u]) && buf[u] != '\n')
if (HTTP1_Read(htc, buf + u, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[u] != '\n')
return (VFP_Error(bo,"chunked header no NL"));
buf[u] = '\0';
cl = vbf_fetch_number(buf, 16);
if (cl < 0)
return (VFP_Error(bo,"chunked header number syntax"));
if (cl > 0 && bo->vfp->bytes(bo, htc, cl) <= 0)
return (VFP_Error(bo, "chunked read err"));
i = HTTP1_Read(htc, buf, 1);
if (i <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[0] == '\r' && HTTP1_Read( htc, buf, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[0] != '\n')
return (VFP_Error(bo,"chunked tail no NL"));
} while (cl > 0);
return (0);
}
static void
cmd_http_sendhex(CMD_ARGS)
{
struct http *hp;
char buf[3], *q;
uint8_t *p;
int i, j, l;
(void)cmd;
(void)vl;
CAST_OBJ_NOTNULL(hp, priv, HTTP_MAGIC);
AN(av[1]);
AZ(av[2]);
l = strlen(av[1]) / 2;
p = malloc(l);
AN(p);
q = av[1];
for (i = 0; i < l; i++) {
while (vct_issp(*q))
q++;
if (*q == '\0')
break;
memcpy(buf, q, 2);
q += 2;
buf[2] = '\0';
if (!vct_ishex(buf[0]) || !vct_ishex(buf[1]))
vtc_log(hp->vl, 0, "Illegal Hex char \"%c%c\"",
buf[0], buf[1]);
p[i] = (uint8_t)strtoul(buf, NULL, 16);
}
vtc_hexdump(hp->vl, 4, "sendhex", (void*)p, i);
j = write(hp->fd, p, i);
assert(j == i);
free(p);
}
static int
fetch_chunked(struct sess *sp, struct http_conn *htc)
{
int i;
char buf[20]; /* XXX: 20 is arbitrary */
unsigned u;
ssize_t cl;
sp->wrk->vfp->begin(sp, 0);
assert(sp->wrk->body_status == BS_CHUNKED);
do {
/* Skip leading whitespace */
do {
i = HTC_Read(htc, buf, 1);
CERR();
} while (vct_islws(buf[0]));
/* Collect hex digits, skipping leading zeros */
for (u = 1; u < sizeof buf; u++) {
do {
i = HTC_Read(htc, buf + u, 1);
CERR();
} while (u == 1 && buf[0] == '0' && buf[u] == '0');
if (!vct_ishex(buf[u]))
break;
}
if (u >= sizeof buf) {
WSP(sp, SLT_FetchError, "chunked header too long");
return (-1);
}
/* Skip trailing white space */
while(vct_islws(buf[u]) && buf[u] != '\n') {
i = HTC_Read(htc, buf + u, 1);
CERR();
}
if (buf[u] != '\n') {
WSP(sp, SLT_FetchError, "chunked header char syntax");
return (-1);
}
buf[u] = '\0';
cl = fetch_number(buf, 16);
if (cl < 0) {
WSP(sp, SLT_FetchError, "chunked header nbr syntax");
return (-1);
} else if (cl > 0) {
i = sp->wrk->vfp->bytes(sp, htc, cl);
CERR();
}
i = HTC_Read(htc, buf, 1);
CERR();
if (buf[0] == '\r') {
i = HTC_Read(htc, buf, 1);
CERR();
}
if (buf[0] != '\n') {
WSP(sp, SLT_FetchError, "chunked tail syntax");
return (-1);
}
} while (cl > 0);
return (0);
}
v1f_pull_chunked(struct busyobj *bo, void *p, ssize_t *lp, intptr_t *priv)
{
int i;
char buf[20]; /* XXX: 20 is arbitrary */
unsigned u;
ssize_t cl, l, lr;
CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
if (p == vfp_init)
return (VFP_OK);
if (p == vfp_fini)
return (VFP_ERROR);
AN(p);
AN(lp);
AN(priv);
l = *lp;
*lp = 0;
if (*priv == -1) {
/* Skip leading whitespace */
do {
if (HTTP1_Read(&bo->htc, buf, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
} while (vct_islws(buf[0]));
if (!vct_ishex(buf[0]))
return (VFP_Error(bo, "chunked header non-hex"));
/* Collect hex digits, skipping leading zeros */
for (u = 1; u < sizeof buf; u++) {
do {
if (HTTP1_Read(&bo->htc, buf + u, 1) <= 0)
return (VFP_Error(bo,
"chunked read err"));
} while (u == 1 && buf[0] == '0' && buf[u] == '0');
if (!vct_ishex(buf[u]))
break;
}
if (u >= sizeof buf)
return (VFP_Error(bo,"chunked header too long"));
/* Skip trailing white space */
while(vct_islws(buf[u]) && buf[u] != '\n')
if (HTTP1_Read(&bo->htc, buf + u, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[u] != '\n')
return (VFP_Error(bo,"chunked header no NL"));
buf[u] = '\0';
cl = vbf_fetch_number(buf, 16);
if (cl < 0)
return (VFP_Error(bo,"chunked header number syntax"));
*priv = cl;
}
if (*priv > 0) {
if (*priv < l)
l = *priv;
lr = HTTP1_Read(&bo->htc, p, l);
if (lr <= 0)
return (VFP_Error(bo, "straight insufficient bytes"));
*lp = lr;
*priv -= lr;
if (*priv == 0)
*priv = -1;
return (VFP_OK);
}
AZ(*priv);
i = HTTP1_Read(&bo->htc, buf, 1);
if (i <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[0] == '\r' && HTTP1_Read(&bo->htc, buf, 1) <= 0)
return (VFP_Error(bo, "chunked read err"));
if (buf[0] != '\n')
return (VFP_Error(bo,"chunked tail no NL"));
return (VFP_END);
}
