以下代碼在Ubuntu上運行並與客戶端通信時沒有問題。但是,我需要在Mac OS X上運行。我可以在沒有錯誤的情況下編譯它,但是當我嘗試運行它時,會出現以下消息:「中止陷阱:6」。我試圖谷歌它,但無法找到任何有用的信息。即使我在主函數的開始處放置printf,它也不會運行。謝謝你的任何建議。未在Mac OS X上運行的C套接字
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#define UNIX_PATH_MAX 108
int connection_handler(int connection_fd)
{
int nbytes;
char buffer[256];
nbytes = read(connection_fd, buffer, 256);
buffer[nbytes] = 0;
printf("MESSAGE FROM CLIENT: %s\n", buffer);
nbytes = snprintf(buffer, 256, "hello from the server");
write(connection_fd, buffer, nbytes);
close(connection_fd);
return 0;
}
int main(void)
{
struct sockaddr_un address;
int socket_fd, connection_fd;
socklen_t address_length;
pid_t child;
socket_fd = socket(PF_UNIX, SOCK_STREAM, 0);
if(socket_fd < 0)
{
printf("socket() failed\n");
return 1;
}
unlink("./demo_socket");
/* start with a clean address structure */
memset(&address, 0, sizeof(struct sockaddr_un));
address.sun_family = AF_UNIX;
snprintf(address.sun_path, UNIX_PATH_MAX, "./demo_socket");
if(bind(socket_fd, (struct sockaddr *) &address, sizeof(struct sockaddr_un)) != 0)
{
printf("bind() failed\n");
return 1;
}
if(listen(socket_fd, 5) != 0)
{
printf("listen() failed\n");
return 1;
}
while((connection_fd = accept(socket_fd, (struct sockaddr *) &address,&address_length)) > -1)
{
child = fork();
if(child == 0)
{
/* now inside newly created connection handling process */
return connection_handler(connection_fd);
}
/* still inside server process */
close(connection_fd);
}
close(socket_fd);
unlink("./demo_socket");
return 0;
}
您可能想要在調試器中運行它。 –
''connection_handler'引起了我的注意的一點是你不會檢查'read'調用中的錯誤。當它失敗並返回'-1'時,會發生什麼? –