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: $!");;
print OUT <<"EOF";
/* A wrapper for ikiwiki, can be safely made suid. */
#define _GNU_SOURCE
#include <stdio.h>
+#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
newenviron[i]=NULL;
environ=newenviron;
+ if (setregid(getegid(), -1) != 0 || setreuid(geteuid(), -1) != 0) {
+ perror("failed to drop real uid/gid");
+ exit(1);
+ }
+
execl("$this", "$this", NULL);
perror("failed to run $this");
exit(1);