environ.c

klibc精简化的c程序库

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

int main(int argc, char *argv[], char *envp[])
{
	int i;

	/* Verify envp == environ */
	printf("Verifying envp == environ... %s\n",
	       (envp == environ) ? "ok" : "ERROR");

	/* Test argc/argv */
	printf("argc = %d, argv = %p\n", argc, argv);
	for (i = 0; i < argc; i++) {
		printf("argv[%2d] = %s\n", i, argv[i]);
	}

	/* Test environ */
	for (i = 0; envp[i]; i++)
		printf("%s\n", envp[i]);

	return 0;
}