Subversion Repositories planix.SVN

#include <sys/types.h>

#include <unistd.h>

#include <fcntl.h>

#include <string.h>

int

putenv(char *s)

{

	int f, n;

	char *value;

	char buf[300];

	value = strchr(s, '=');

	if (value) {

		n = value-s;

		if(n<=0 || n > sizeof(buf)-6)

			return -1;

		strcpy(buf, "/env/");

		strncpy(buf+5, s, n);

		buf[n+5] = 0;

		f = creat(buf, 0666);

		if(f < 0)

			return 1;

		value++;

		n = strlen(value);

		if(write(f, value, n) != n)

			return -1;

		close(f);

		return 0;

	} else

		return -1;

}