Attachment 951875 Details for Bug 1152478 – fixed pass-fd program

fixed pass-fd program

pass-fd.c (text/x-csrc), 1.47 KB, created by Luiz Capitulino on 2014-10-29 18:05:37 UTC

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Filename:

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Creator: Luiz Capitulino

Created: 2014-10-29 18:05:37 UTC

Size: 1.47 KB

patch

obsolete

>#include <stdio.h>
>#include <unistd.h>
>#include <errno.h>
>#include <string.h>
>#include <fcntl.h>
>#include <stdlib.h>
>#include <sys/stat.h>
>#include <sys/types.h>
>#include <sys/socket.h>
>#include <sys/un.h>
>
>int main(int argc, char *argv[])
>{
>    char c, control[CMSG_SPACE(sizeof(int))];
>	int err, filefd, sockfd;
>	struct sockaddr_un addr;
>	struct cmsghdr *cmsg;
>    struct iovec iov[1];
>	struct msghdr msg;
>
>	if (argc != 3) {
>		printf("usage: pass-fd < file to pass > < qmp socket >\n");
>		exit(1);
>	}
>
>	filefd = open(argv[1], O_RDWR);
>	if (filefd < 0) {
>		perror("open()");
>		exit(1);
>	}
>
>	sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
>	if (sockfd < 0) {
>		perror("socket()");
>		exit(1);
>	}
>
>	memset(&addr, 0, sizeof(addr));
>	addr.sun_family = AF_UNIX;
>	strcpy(addr.sun_path, argv[2]);
>	err = connect(sockfd, (const struct sockaddr *) &addr, sizeof(addr));
>	if (err < 0) {
>		perror("connect()");
>		exit(1);
>	}
>
>    memset(&msg, 0, sizeof(msg));
>    memset(control, 0, sizeof(control));
>
>    iov[0].iov_base = &c;
>    iov[0].iov_len = 1;
>
>    msg.msg_iov = iov;
>    msg.msg_iovlen = 1;
>
>    msg.msg_control = control;
>    msg.msg_controllen = sizeof(control);
>
>    cmsg = CMSG_FIRSTHDR(&msg);
>    cmsg->cmsg_len = CMSG_LEN(sizeof(int));
>    cmsg->cmsg_level = SOL_SOCKET;
>    cmsg->cmsg_type = SCM_RIGHTS;
>    memcpy(CMSG_DATA(cmsg), &filefd, sizeof(int));
>
>    do {
>        err = sendmsg(sockfd, &msg, 0);
>    } while (err < 0 && errno == EINTR);
>
>	printf("sent fd %d\n", filefd);
>	pause();
>
>	return 0;
>}

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Attachments on bug 1152478: 946767 | 951875