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SMTP65: Adopted the improved w5100_tcp_send_recv().

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This commit is contained in:
Bobbi Webber-Manners 2020-09-13 18:59:07 -04:00
parent 906446544e
commit 1461a5674b
1 changed files with 28 additions and 19 deletions
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47
apps/smtp65.c
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@ -227,7 +227,7 @@ bool w5100_tcp_send_recv(char* sendbuf, char* recvbuf, size_t length,
} else {
//
// Handle short single packet ASCII text transmissions
// Handle short ASCII text transmissions
//
uint16_t snd;
uint16_t pos = 0;
@ -278,11 +278,15 @@ bool w5100_tcp_send_recv(char* sendbuf, char* recvbuf, size_t length,
{
//
// Handle short single packet ASCII text responses
// Must fit in recvbuf[]
//
uint16_t rcv;
uint16_t len = 0;
uint8_t cont = 1;
while(1) {
--length; // Leave space for NULL at end in case of buffer overrun
while (cont) {
if (input_check_for_abort_key()) {
printf("User abort\n");
w5100_disconnect();
@ -290,30 +294,35 @@ bool w5100_tcp_send_recv(char* sendbuf, char* recvbuf, size_t length,
}
rcv = w5100_receive_request();
if (rcv)
break;
if (!w5100_connected()) {
printf("Connection lost\n");
return false;
if (!rcv) {
cont = w5100_connected();
if (cont)
continue;
}
}
if (rcv > length - len)
rcv = length - len;
if ((length - len) == 0)
cont = 0;
{
// One less to allow for faster pre-increment below
char *dataptr = recvbuf + len - 1;
uint16_t i;
for (i = 0; i < rcv; ++i) {
// The variable is necessary to have cc65 generate code
// suitable to access the W5100 auto-increment register.
char data = *w5100_data;
*++dataptr = data;
if (rcv > length - len)
rcv = length - len;
{
// One less to allow for faster pre-increment below
char *dataptr = recvbuf + len - 1;
uint16_t i;
for (i = 0; i < rcv; ++i) {
// The variable is necessary to have cc65 generate code
// suitable to access the W5100 auto-increment register.
char data = *w5100_data;
*++dataptr = data;
if (!memcmp(dataptr - 1, "\r\n", 2))
cont = 0;
}
}
w5100_receive_commit(rcv);
len += rcv;
}
recvbuf[len + 1] = '\0';
putchar('<');
print_strip_crlf(recvbuf);
}