96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <netdb.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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int extract_message(char **buf, char **msg)
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{
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char *newbuf;
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int i;
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*msg = 0;
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if (*buf == 0)
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return (0);
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i = 0;
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while ((*buf)[i])
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{
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if ((*buf)[i] == '\n')
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{
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newbuf = calloc(1, sizeof(*newbuf) * (strlen(*buf + i + 1) + 1));
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if (newbuf == 0)
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return (-1);
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strcpy(newbuf, *buf + i + 1);
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*msg = *buf;
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(*msg)[i + 1] = 0;
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*buf = newbuf;
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return (1);
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}
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i++;
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}
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return (0);
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}
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char *str_join(char *buf, char *add)
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{
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char *newbuf;
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int len;
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if (buf == 0)
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len = 0;
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else
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len = strlen(buf);
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newbuf = malloc(sizeof(*newbuf) * (len + strlen(add) + 1));
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if (newbuf == 0)
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return (0);
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newbuf[0] = 0;
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if (buf != 0)
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strcat(newbuf, buf);
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free(buf);
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strcat(newbuf, add);
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return (newbuf);
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}
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int main() {
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int sockfd, connfd, len;
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struct sockaddr_in servaddr, cli;
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// socket create and verification
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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if (sockfd == -1) {
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printf("socket creation failed...\n");
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exit(0);
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}
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else
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printf("Socket successfully created..\n");
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bzero(&servaddr, sizeof(servaddr));
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// assign IP, PORT
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servaddr.sin_family = AF_INET;
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servaddr.sin_addr.s_addr = htonl(2130706433); //127.0.0.1
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servaddr.sin_port = htons(8081);
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// Binding newly created socket to given IP and verification
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if ((bind(sockfd, (const struct sockaddr *)&servaddr, sizeof(servaddr))) != 0) {
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printf("socket bind failed...\n");
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exit(0);
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}
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else
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printf("Socket successfully binded..\n");
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if (listen(sockfd, 10) != 0) {
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printf("cannot listen\n");
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exit(0);
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}
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len = sizeof(cli);
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connfd = accept(sockfd, (struct sockaddr *)&cli, &len);
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if (connfd < 0) {
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printf("server acccept failed...\n");
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exit(0);
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}
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else
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printf("server acccept the client...\n");
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} |