version 1.1, 2011/11/29 23:31:57
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version 1.2, 2012/01/27 15:05:38
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#include "global.h" |
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int |
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srv_Socket(sl_config * __restrict cfg) |
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{ |
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int s = -1, n = 1; |
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struct hostent *host; |
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char szStr[STRSIZ]; |
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u_short port; |
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struct sockaddr_storage ss; |
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struct sockaddr_in *sin = (struct sockaddr_in*) &ss; |
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6*) &ss; |
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ioTRACE(2); |
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cfg_LoadAttribute(cfg, CFG("mqttd"), CFG("port"), CFG(szStr), sizeof szStr, MQTT_PORT); |
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port = strtol(szStr, NULL, 0); |
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cfg_LoadAttribute(cfg, CFG("mqttd"), CFG("listen"), CFG(szStr), sizeof szStr, MQTT_HOST); |
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host = gethostbyname(szStr); |
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if (!host) { |
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printf("Error:: resolver #%d - %s\n", h_errno, hstrerror(h_errno)); |
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return -1; |
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} |
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switch (host->h_addrtype) { |
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case AF_INET: |
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sin->sin_len = sizeof(struct sockaddr_in); |
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sin->sin_family = AF_INET; |
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sin->sin_port = htons(port); |
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memcpy(&sin->sin_addr, host->h_addr, sizeof sin->sin_addr); |
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break; |
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case AF_INET6: |
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sin6->sin6_len = sizeof(struct sockaddr_in6); |
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sin6->sin6_family = AF_INET6; |
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sin6->sin6_port = htons(port); |
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memcpy(&sin6->sin6_addr, host->h_addr, sizeof sin6->sin6_addr); |
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break; |
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default: |
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printf("Error:: unsupported socket type %d\n", host->h_addrtype); |
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return -1; |
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} |
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s = socket(ss.ss_family, SOCK_STREAM, 0); |
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if (s == -1) { |
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printf("Error:: socket() #%d - %s\n", errno, strerror(errno)); |
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return -1; |
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} |
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if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) { |
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printf("Error:: setsockopt(SO_REUSEADDR) #%d - %s\n", errno, strerror(errno)); |
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close(s); |
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return -1; |
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} |
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if (bind(s, (struct sockaddr*) &ss, ss.ss_len) == -1) { |
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printf("Error:: bind() #%d - %s\n", errno, strerror(errno)); |
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close(s); |
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return -1; |
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} |
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return s; |
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} |
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int |
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srv_Close(int s) |
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{ |
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ioTRACE(2); |
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if (s > STDERR_FILENO) |
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shutdown(s, SHUT_RDWR); |
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return close(s); |
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} |