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Fixed bug #22805 (Reading of user input could stop prematurely).

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This commit is contained in:
Ilia Alshanetsky 2003-03-25 01:34:32 +00:00
parent 66842efff7
commit 519721851f
1 changed files with 18 additions and 17 deletions
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35
sapi/apache2handler/sapi_apache2.c
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@ -149,32 +149,33 @@ php_apache_sapi_send_headers(sapi_headers_struct *sapi_headers TSRMLS_DC)
static int
php_apache_sapi_read_post(char *buf, uint count_bytes TSRMLS_DC)
{
apr_size_t len;
apr_size_t len, tlen=0;
php_struct *ctx = SG(server_context);
request_rec *r;
apr_bucket_brigade *brigade;
apr_status_t rv;
r = ctx->r;
brigade = ctx->brigade;
len = count_bytes;
rv = ap_get_brigade(r->input_filters, brigade, AP_MODE_READBYTES,
APR_BLOCK_READ, len);
if (rv == APR_SUCCESS) {
apr_brigade_flatten(brigade, buf, &len);
} else {
len = 0;
}
apr_brigade_cleanup(brigade);
/* This is downcast is okay, because len is constrained by
* count_bytes and we know ap_get_brigade won't return more
* than that.
/*
* This loop is needed because ap_get_brigade() can return us partial data
* which would cause premature termination of request read. Therefor we
* need to make sure that if data is avaliable we fill the buffer completely.
*/
return len;
while (ap_get_brigade(r->input_filters, brigade, AP_MODE_READBYTES, APR_BLOCK_READ, len) == APR_SUCCESS) {
apr_brigade_flatten(brigade, buf, &len);
apr_brigade_cleanup(brigade);
tlen += len;
if (tlen == count_bytes || !len) {
break;
}
buf += len;
len = count_bytes - tlen;
}
return tlen;
}
static struct stat*