Attachment 84176 Details for Bug 120128 – getcwd_bug.c

getcwd_bug.c

getcwd_bug.c (text/plain), 1.05 KB, created by Mike Kelly on 2009-04-10 04:27:27 UTC

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Creator: Mike Kelly

Created: 2009-04-10 04:27:27 UTC

Size: 1.05 KB

patch

obsolete

>/*
> * This is a proof-of-concept for a FreeBSD bug.
> */
>
>#include <stdio.h>
>#include <stdlib.h>
>#include <unistd.h>
>#include <sys/stat.h>
>#include <sys/param.h>
>
>int
>main(int argc, char** argv) {
>    char path[MAXPATHLEN];
>    if (-1 == mkdir("top",0755)) {
>        perror("mkdir \"top\"");
>        return(1);
>    }
>    if (-1 == mkdir("top/mine",0755)) {
>        perror("mkdir \"top/mine\"");
>        return(1);
>    }
>    if (-1 == mkdir("top/mine/tmp",0755)) {
>        perror("mkdir \"top/mine/tmp\"");
>        return(1);
>    }
>    if (-1 == chmod("top",0111)) {
>        perror("chmod \"top\", 0111");
>        return(1);
>    }
>    if (-1 == chdir("top/mine")) {
>        perror("chdir \"top/mine\"");
>        return(1);
>    }
>    if (0 == getcwd(path,MAXPATHLEN)) {
>        perror("getcwd");
>        return(1);
>    }
>    printf("CWD: %s\n",path);
>    if (-1 == rmdir("tmp")) {
>        perror("rmdir \"tmp\"");
>        return(1);
>    }
>    if (0 == getcwd(path,MAXPATHLEN)) {
>        perror("getcwd");
>        return(1);
>    }
>    printf("CWD: %s\n",path);
>
>    return(0);
>}

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Attachments on bug 120128: 84175 | 84176