Kir: rm unused var

2015-10-28T23:40:52Z

rm unused var

Kir: moved from the VNC page

2013-04-12T16:52:11Z

moved from the VNC page

New page

<syntaxhighlight lang="c">
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/mount.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/param.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <signal.h>
#include <sched.h>

#define STACK_SIZE (8 * 4096)

static int ac;
static char **av;
static int ns_exec(void *_arg)
{
int fd;

fd = open("newns.log", O_CREAT | O_TRUNC | O_RDWR | O_APPEND, 0600);
if (fd >= 0) {
close(0);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
}

setsid();
execvp(av[1], av + 1);
return 1;
}

int main(int argc, char **argv)
{
void *stack;
int ret;
pid_t pid;

ac = argc;
av = argv;

stack = mmap(NULL, STACK_SIZE, PROT_WRITE | PROT_READ,
MAP_PRIVATE | MAP_GROWSDOWN | MAP_ANONYMOUS, -1, 0);
if (stack == MAP_FAILED) {
fprintf(stderr, "Can't map stack %m\n");
exit(1);
}
pid = clone(ns_exec, stack + STACK_SIZE,
CLONE_NEWPID | CLONE_NEWIPC | SIGCHLD, NULL);
if (pid < 0) {
fprintf(stderr, "clone() failed: %m\n");
exit(1);
}
return 0;
}
</syntaxhighlight>

@@ Line 40: / Line 40: @@
+{
 	void *stack;
 	pid_t pid;

VNC/newns.c - Revision history

Kir: rm unused var

Kir: moved from the VNC page