以下代码在 Ubuntu 上运行并与客户端通信没有问题。但是,我需要在 Mac OS X 上运行。我可以毫无错误地编译它,但是当我尝试运行它时,会出现以下消息:"Abort trap: 6"。我试图用谷歌搜索它,但找不到任何有用的信息。即使我将 printf 放在 main 函数的开头,它也不会运行。谢谢你的任何建议。
#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;
}