1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/*
* Does some basic checks to make sure arguments are
* being passed to userland programs correctly.
*/
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int main(int argc, char **argv, char **envp)
{
int i;
char buf[100];
open("/dev/tty0", O_RDONLY, 0);
open("/dev/tty0", O_WRONLY, 0);
snprintf(buf, sizeof(buf), "Arguments: (argc = %d, argv = %p)\n", argc,
argv);
write(1, buf, strlen(buf));
for (i = 0; argv[i]; i++)
{
snprintf(buf, sizeof(buf), " %d \"%s\"\n", i, argv[i]);
write(1, buf, strlen(buf));
}
snprintf(buf, sizeof(buf), "Environment: (envp = %p)\n", envp);
write(1, buf, strlen(buf));
for (i = 0; envp[i]; i++)
{
snprintf(buf, sizeof(buf), " %d \"%s\"\n", i, envp[i]);
write(1, buf, strlen(buf));
}
return 0;
}
|
