1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/* Sreadbytes.c: */
#include <stdio.h>
#include "sockets.h"
/* --------------------------------------------------------------------- */
/* Sreadbytes: this function performs a socket read.
* Gets buflen bytes, so long as read is working.
* Otherwise, (read fails with a -1), the number
* of bytes received will be returned.
*/
#ifdef __PROTOTYPE__
int Sreadbytes(
Socket *skt, /* socket handle */
void *buf, /* socket character buffer */
int buflen) /* max length of buffer */
#else
int Sreadbytes(
skt, /* socket handle */
buf, /* socket character buffer */
buflen) /* max length of buffer */
Socket *skt;
void *buf;
int buflen;
#endif
{
int cnt;
int rcnt;
/* sanity check */
if(!skt) {
return -1;
}
/* get buflen bytes, no matter the wait */
for(cnt= 0; cnt < buflen; cnt+= rcnt) {
rcnt= recv(skt->skt,(void *) (((char *)buf)+cnt),(unsigned) (buflen-cnt),0);
if(rcnt < 0) break;
}
return cnt;
}
/* ---------------------------------------------------------------------
* vim: ts=4
*/
|
