45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <QDebug>
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#include "connect.h"
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// return : - 0 on success or -1 on error
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// addrname: - Hostname or IP address
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// port - Port number
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int try_connect(const char *addrname, int port)
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{
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int fd; /* Socket */
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int status; /* Connection status */
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struct sockaddr_in ipv4;
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fd = socket(AF_INET, SOCK_STREAM, 0);
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if (fd < 0) {
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qDebug("ERROR: Unable to create socket: %s\n",
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strerror(errno));
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return (-1);
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}
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bzero(&ipv4, sizeof(ipv4));
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ipv4.sin_family = AF_INET;
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ipv4.sin_addr.s_addr = inet_addr(addrname);
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ipv4.sin_port = htons(port);
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struct timeval timeout={5,0};
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setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval));
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setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval));
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status = connect(fd, (struct sockaddr *)&ipv4, (socklen_t)sizeof(ipv4));
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close(fd);
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return (status);
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}
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