Attachment 217167 Details for Bug 248614 – Client and server that demonstrate the actual behavior of getpeereid

Client and server that demonstrate the actual behavior of getpeereid

file_248614.txt (text/plain), 2.10 KB, created by George Nachman on 2020-08-12 09:06:54 UTC

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Creator: George Nachman

Created: 2020-08-12 09:06:54 UTC

Size: 2.10 KB

patch

obsolete

>/** BEGIN SERVER **/
>#include <errno.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <string.h>
>#include <sys/socket.h>
>#include <sys/un.h>
>#include <unistd.h>
> 
>char *socket_path = "./socket";
> 
>int main(int argc, char *argv[]) {
>    struct sockaddr_un addr;
>    char buf[100];
>    int fd,cl,rc;
> 
>    if (argc > 1) socket_path=argv[1];
> 
>    if ( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
>        perror("socket error");
>        exit(-1);
>    }
> 
>    memset(&addr, 0, sizeof(addr));
>    addr.sun_family = AF_UNIX;
>    strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path)-1);
>    unlink(socket_path);
> 
>    if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
>        perror("bind error");
>        exit(-1);
>    }
> 
>    if (listen(fd, 5) == -1) {
>        perror("listen error");
>        exit(-1);
>    }
> 
>    if ( (cl = accept(fd, NULL, NULL)) == -1) {
>        perror("accept error");
>        exit(-1);
>    }
>    uid_t eid=0, egid;
>    int status = getpeereid(fd, &eid, &egid);
>    printf("status=%d eid=%d errno=%d\n", status, eid, errno);
>    status = getpeereid(cl, &eid, &egid);
>    printf("status=%d eid=%d errno=%d\n", status, eid, errno);
> 
>    return 0;
>}
>
>/** BEGIN CLIENT **/
>#include <sys/socket.h>
>#include <sys/un.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <unistd.h>
>#include <string.h>
> 
>char *socket_path = "./socket";
> 
>int main(int argc, char *argv[]) {
>    struct sockaddr_un addr;
>    char buf[100];
>    int fd,rc;
> 
>    if (argc > 1) socket_path=argv[1];
> 
>    if ( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
>        perror("socket error");
>        exit(-1);
>    }
> 
>    memset(&addr, 0, sizeof(addr));
>    addr.sun_family = AF_UNIX;
>    if (*socket_path == '\0') {
>        *addr.sun_path = '\0';
>        strncpy(addr.sun_path+1, socket_path+1, sizeof(addr.sun_path)-2);
>    } else {
>        strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path)-1);
>    }
> 
>    if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
>        perror("connect error");
>        exit(-1);
>    }
> 
>    return 0;
>}

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Attachments on bug 248614: 217167