int tcpclient_readline(tcpclient_t* cli,
char* userbuf, int buf_size, int timeout)
{
int n = 0;
int i = 0;
if (cli->pushed_back > 0) {
userbuf[i] = cli->pushed_back;
i++;
cli->pushed_back = -1;
}
for (; i < buf_size; ++i)
{
char ch;
n = tcpclient_read(cli, &ch, 1, timeout);
if(n < 0)
printf("n : %d\n", n);
if (n <= 0)
{
printf("err: no linefeed(i=%d, n:%d)\n",i,n);
break; // error
}
if (ch == '\n' || ch == '\r')
{
userbuf[i++] = ch;
break; // success
}
userbuf[i] = ch;
}
if (i >= buf_size) { // No CR or LF found.
--i;
cli->pushed_back = userbuf[buf_size - 1] & 0xff;
userbuf[buf_size - 1] = '\0';
}
userbuf[i] = '\0';
if (i == 0 && n <= 0) { // error
printf("i== 0 && n:%d\n",n);
return -1;
}
//printf("recv: %s", userbuf);
return i; // the number of characters filled into user buffer.
}
int tcpclient_readline(urg_tcpclient_t* cli,
char* userbuf, int buf_size, int timeout)
{
int n = 0;
int i = 0;
if (cli->pushed_back > 0) {
userbuf[i] = cli->pushed_back;
i++;
cli->pushed_back = -1;
}
for (; i < buf_size; ++i) {
char ch;
n = tcpclient_read(cli, &ch, 1, timeout);
if (n <= 0) {
break; // error
}
if (ch == '\n' || ch == '\r') {
break; // success
}
userbuf[i] = ch;
}
if (i >= buf_size) { // No CR or LF found.
--i;
cli->pushed_back = userbuf[buf_size - 1] & 0xff;
userbuf[buf_size - 1] = '\0';
}
userbuf[i] = '\0';
if (i == 0 && n <= 0) { // error
return -1;
}
return i; // the number of characters filled into user buffer.
}
