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sockio.c
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C/C++ Source or Header
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1995-05-09
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838b
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43 lines
#include <stdio.h>
/*
* Routines to send and receive on sockets. Four bytes of length are
* sent, followed by the null terminated string.
*
*/
read_socket(s, buf)
int s; /* socket to talk on */
char *buf; /* string to send */
{
int nbytes;
int partial, this;
if (read(s, (char *) &nbytes, sizeof(int)) != sizeof (int))
return 0;
nbytes = ntohl(nbytes);
partial = 0;
while (partial < nbytes) {
this = read(s, buf+partial, nbytes);
if (!this)
return 0;
partial = partial + this;
}
if (partial != nbytes)
return 0;
else
return nbytes;
}
write_socket(s, buf)
int s; /* socket to talk on */
char *buf; /* string to read on */
{
int nbytes, netnbytes;
nbytes = strlen(buf) + 1;
netnbytes = htonl(nbytes);
(void) write(s, (char *) &netnbytes, sizeof(int));
(void) write(s, buf, nbytes);
}