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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mount.h>
#include <linux/fs.h>
void mount_proc(void)
{
/* mkdir("/proc",0744); */
mount(0,"/proc","proc",0,0);
}
main(int argc, char **argv, char **env)
{
char **a=argv, **e=env;
char *real_root;
FILE *f;
fputs("\n\n\n\nHello, here ist /linuxrc printing\n",stdout);
fputs("This is our argv[]:\n",stdout);
while (*a) printf(">%s<\n",*a++);
fputs("This is our env[]:\n",stdout);
while (*e) printf(">%s<\n",*e++);
real_root = getenv("real_root");
if (real_root) {
printf("we are changing root to device %s\n",real_root);
mount_proc();
if (! (f=fopen("/proc/sys/kernel/real-root-dev","w"))) return 0;
fprintf(f, "%s\n",real_root);
fclose(f);
}
fputs("\n\n",stdout);
return 0;
}
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