Chroot jailing isn't working...
it's executing ls command after chroot jailing at 'chroot/jail' dir.
I run this program as a root and place 'ls' at chroot/jail with execute permission
But it cotinously output like below.
---
exit with -1
---
my program is below.
#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main(int argc, char* argv[]){
if (chroot("chroot/jail") == -1) {
perror("error-1: ");
}
if (chdir("/") == -1) {
perror("error-2: ");
}
File *fd;
fd = fopen("/bin/ls","r");
fd.
fclose(fd);
int ret;
ret = execl("/bin/ls","ls",NULL);
printf("exit with %d\n",ret);
return 0;
}
I run this program as a root and place 'ls' at chroot/jail with execute permission
But it cotinously output like below.
---
exit with -1
---
my program is below.
#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main(int argc, char* argv[]){
if (chroot("chroot/jail") == -1) {
perror("error-1: ");
}
if (chdir("/") == -1) {
perror("error-2: ");
}
File *fd;
fd = fopen("/bin/ls","r");
fd.
fclose(fd);
int ret;
ret = execl("/bin/ls","ls",NULL);
printf("exit with %d\n",ret);
return 0;
}
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