Using switch-case instead of if statements.
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07e364f46e
commit
d0a673d767
@ -35,18 +35,27 @@ int NeoComm_bind(const unsigned short port) {
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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if(sockfd < 0)
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if(sockfd < 0)
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{
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{
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if(errno == EACCES)
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/*
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NeoComm_error("Insufficient privileges");
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* This declaration is here because if you put it at `default:' then
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else if(errno == ENOBUFS)
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* it complains about the line being a declaration and not a
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NeoComm_error("Insufficient resources available");
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* statement.
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else if(errno == ENOMEM)
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*/
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NeoComm_error("Insufficient memory to open socket");
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char error_msg[128];
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else
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switch(errno) {
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{
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case EACCES:
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char error_msg[128];
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NeoComm_error("Insufficient privileges");
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snprintf(error_msg, 128,
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break;
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"Failed to initiate socket with errno `%d'", errno);
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case ENOBUFS:
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NeoComm_error(error_msg);
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NeoComm_error("Insufficient resources available");
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break;
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case ENOMEM:
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NeoComm_error("Insufficient memory to open socket");
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break;
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default:
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snprintf(error_msg, 128,
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"Failed to initiate socket with errno `%d'", errno);
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NeoComm_error(error_msg);
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break;
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}
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}
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return 0;
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return 0;
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}
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}
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@ -56,30 +65,38 @@ int NeoComm_bind(const unsigned short port) {
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serv_addr.sin_addr.s_addr = INADDR_ANY;
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serv_addr.sin_addr.s_addr = INADDR_ANY;
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if(bind(sockfd, (struct sockaddr*) &serv_addr, sizeof(serv_addr)) < 0)
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if(bind(sockfd, (struct sockaddr*) &serv_addr, sizeof(serv_addr)) < 0)
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{
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{
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if(errno == EADDRINUSE)
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char error_msg[128]; // same as before
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NeoComm_error("Address in use");
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switch(errno) {
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else if(errno == EADDRNOTAVAIL)
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case EADDRINUSE:
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NeoComm_error("Address unavailable on system");
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NeoComm_error("Address in use");
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else if(errno == EAFNOSUPPORT)
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break;
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NeoComm_error("Unsupported address family for socket");
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case EADDRNOTAVAIL:
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else if(errno == EALREADY)
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NeoComm_error("Address unavailable on system");
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NeoComm_error("Assignment request already exists for socket");
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break;
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else if(errno == EINVAL)
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case EAFNOSUPPORT:
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NeoComm_error("Socket already bound");
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NeoComm_error("Unsupported address family for socket");
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else if(errno == ENOBUFS)
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break;
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NeoComm_error("Insufficient resources");
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case EALREADY:
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else if(errno == EACCES)
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NeoComm_error("Assignment request already exists for socket");
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NeoComm_error("Insufficient priviliges");
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break;
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else
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case EINVAL:
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{
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NeoComm_error("Socket already bound");
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char error_msg[128];
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break;
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snprintf(error_msg, 128,
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case ENOBUFS:
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"Failed to bind to socket with errno `%d'", errno);
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NeoComm_error("Insufficient resources");
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NeoComm_error(error_msg);
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break;
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case EACCES:
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NeoComm_error("Insufficient privileges");
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break;
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default:
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snprintf(error_msg, 128,
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"Failed to bind to socket with errno `%d'", errno);
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NeoComm_error(error_msg);
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break;
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}
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}
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return 0;
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return 0;
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}
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}
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listen(sockfd, 5);
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listen(sockfd, 5);
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return 1;
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return 1;
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}
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}
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