web commit by JamesWestby: Add my new wiki

[git.ikiwiki.info.git] / IkiWiki / Wrapper.pm

diff --git a/IkiWiki/Wrapper.pm b/IkiWiki/Wrapper.pm
index ee547cefb9e7945ea12015a3197a2a79737e3fa7..0f64a59f4c039ab24872457cc3529c364deee172 100644 (file)
--- a/IkiWiki/Wrapper.pm
+++ b/IkiWiki/Wrapper.pm
@@ -51,12 +51,14 @@ EOF
        my $configstring=Data::Dumper->Dump([\%config], ['*config']);
        $configstring=~s/\\/\\\\/g;
        $configstring=~s/"/\\"/g;
        my $configstring=Data::Dumper->Dump([\%config], ['*config']);
        $configstring=~s/\\/\\\\/g;
        $configstring=~s/"/\\"/g;

+       $configstring=~s/\n/\\\n/g;

        
        open(OUT, ">$wrapper.c") || error("failed to write $wrapper.c: $!");;
        print OUT <<"EOF";
 /* A wrapper for ikiwiki, can be safely made suid. */
 #define _GNU_SOURCE
 #include <stdio.h>
        
        open(OUT, ">$wrapper.c") || error("failed to write $wrapper.c: $!");;
        print OUT <<"EOF";
 /* A wrapper for ikiwiki, can be safely made suid. */
 #define _GNU_SOURCE
 #include <stdio.h>

+#include <sys/types.h>

 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>


@@ -74,6 +76,11 @@ $envsave
        newenviron[i]=NULL;
        environ=newenviron;
 
        newenviron[i]=NULL;
        environ=newenviron;
 

+       if (setregid(getegid(), -1) != 0 || setreuid(geteuid(), -1) != 0) {
+               perror("failed to drop real uid/gid");
+               exit(1);
+       }
+

        execl("$this", "$this", NULL);
        perror("failed to run $this");
        exit(1);
        execl("$this", "$this", NULL);
        perror("failed to run $this");
        exit(1);