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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;
- }
-