1#ifndef _GNU_SOURCE
2#define _GNU_SOURCE 1
3#endif
4#include <stdlib.h>
5#include <string.h>
6#include <errno.h>
7#include <unistd.h>
8#include "test.h"
9
10extern char **environ;
11
12int main()
13{
14	char *s;
15	int r;
16
17	if (!environ)
18		t_error("environ is NULL\n");
19	if (clearenv() || (environ && *environ))
20		t_error("clrearenv: %s\n", strerror(errno));
21	if (putenv("TEST=1"))
22		t_error("putenv: %s\n", strerror(errno));
23	if (strcmp(environ[0],"TEST=1") != 0)
24		t_error("putenv failed: environ[0]: %s, wanted \"TEST=1\"\n", environ[0]);
25	if ((s=environ[1]))
26		t_error("environ[1]: %p, wanted 0\n", s);
27	if (!(s=getenv("TEST")))
28		t_error("getenv(\"TEST\"): 0, wanted \"1\"\n");
29	if (strcmp(s,"1") != 0)
30		t_error("getenv(\"TEST\"): \"%s\", wanted \"1\"\n", s);
31	if (unsetenv("TEST"))
32		t_error("unsetenv: %s\n", strerror(errno));
33	if ((s=*environ))
34		t_error("*environ: %p != 0\n", s);
35	if ((s=getenv("TEST")))
36		t_error("getenv(\"TEST\"): %p, wanted 0\n", s);
37	errno = 0;
38	if (setenv("TEST", "2", 0))
39		t_error("setenv: %s\n", strerror(errno));
40	if (strcmp(s=getenv("TEST"),"2") != 0)
41		t_error("getenv(\"TEST\"): \"%s\", wanted \"2\"\n", s);
42	if (strcmp(environ[0], "TEST=2") != 0)
43		t_error("setenv failed: environ[0]: %s, wanted \"TEST=2\"\n", environ[0]);
44	errno = 0;
45	if (setenv("TEST", "3", 0))
46		t_error("setenv: %s\n", strerror(errno));
47	if (strcmp(s=getenv("TEST"),"2") != 0)
48		t_error("getenv(\"TEST\"): \"%s\", wanted \"2\"\n", s);
49	errno = 0;
50	if (setenv("TEST", "3", 1))
51		t_error("setenv: %s\n", strerror(errno));
52	if (strcmp(s=getenv("TEST"),"3") != 0)
53		t_error("getenv(\"TEST\"): \"%s\", wanted \"3\"\n", s);
54	/* test failures */
55	errno = 0;
56	if ((r=setenv("","",0)) != -1 || errno != EINVAL)
57		t_error("setenv(\"\",\"\",0): %d, errno: %d (%s), wanted -1, %d (EINVAL)\n", r, errno, strerror(errno), EINVAL);
58	return t_status;
59}
60