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Improved error handling for SCC socket dial with port number.

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This commit is contained in:
Nick Westgate 2015-02-12 20:05:42 +00:00
parent 5cc387205e
commit 93ee32f993
1 changed files with 13 additions and 9 deletions
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22
src/scc_socket_driver.c
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@ -187,6 +187,7 @@ scc_socket_open_outgoing(int port, double dcycs)
int on;
int ret;
SOCKET sockfd;
USHORT port_number = 23;
scc_ptr = &(scc_stat[port]);
@ -218,20 +219,23 @@ scc_socket_open_outgoing(int port, double dcycs)
memset(&sa_in, 0, sizeof(sa_in));
sa_in.sin_family = AF_INET;
sa_in.sin_port = htons(23);
/* ARO: inspect the ATDT command to see if there is a decimal port number declared & if so, use it */
/* Format: ATDT<host>,<port> */
/* Example ATDT192.168.1.21,4001 */
char *comma_ptr = strchr(&scc_ptr->modem_cmd_str[0], ',');
if (comma_ptr != NULL)
{
USHORT port = (USHORT)strtol(comma_ptr + 1, NULL, 10);
if (comma_ptr != NULL) {
long custom_port = strtol(comma_ptr + 1, NULL, 10);
*comma_ptr = '\0'; /* null terminate the hostname string at the position of the comma */
if (port >= 1 && port < 65536) /* Only use the valid number if it is within bounds */
{
sa_in.sin_port = htons(port);
if (custom_port >= 1 && custom_port <= 65535) {
port_number = (USHORT)custom_port;
} else {
printf("Specified port out of range: %ld\n", custom_port);
scc_socket_close_handle(sockfd);
scc_socket_close(port, 1, dcycs);
return;
}
}
sa_in.sin_port = htons(port_number);
hostentptr = gethostbyname((const char*)&scc_ptr->modem_cmd_str[0]); // OG Added Cast
if(hostentptr == 0) {
#if defined(_WIN32) || defined (__OS2__)
@ -263,8 +267,8 @@ scc_socket_open_outgoing(int port, double dcycs)
scc_ptr->socket_state = 1; /* talk to socket */
scc_ptr->socket_num_rings = 0;
printf("SCC port %d is now outgoing to %s\n", port,
&scc_ptr->modem_cmd_str[0]);
printf("SCC port %d is now outgoing to %s on TCP port %d\n", port,
&scc_ptr->modem_cmd_str[0], port_number);
scc_ptr->sockfd = sockfd;
scc_ptr->state = 1; /* successful socket */