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#include <osmocom/core/utils.h>
#include <osmocom/core/exec.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
static void env_dump(char **env)
{
char **ent;
for (ent = env; *ent; ent++)
printf("\t%s\n", *ent);
}
static void test_env_filter(void)
{
char *out[256];
char *env_in[] = {
"FOO=1",
"BAR=2",
"USER=mahlzeit",
"BAZ=3",
"SHELL=/bin/sh",
NULL
};
const char *filter[] = {
"SHELL",
"USER",
NULL
};
int rc;
printf("\n==== osmo_environment_filter ====\n");
printf("Input Environment:\n");
env_dump(env_in);
printf("Input Whitelist:\n");
env_dump((char **) filter);
rc = osmo_environment_filter(out, ARRAY_SIZE(out), env_in, filter);
printf("Output Environment (%d):\n", rc);
env_dump(out);
OSMO_ASSERT(rc == 3);
printf("Testing for NULL out\n");
rc = osmo_environment_filter(NULL, 123, env_in, filter);
OSMO_ASSERT(rc < 0);
printf("Testing for zero-length out\n");
rc = osmo_environment_filter(out, 0, env_in, filter);
OSMO_ASSERT(rc < 0);
printf("Testing for one-length out\n");
rc = osmo_environment_filter(out, 1, env_in, filter);
OSMO_ASSERT(rc == 1 && out[0] == NULL);
printf("Testing for no filter\n");
rc = osmo_environment_filter(out, ARRAY_SIZE(out), env_in, NULL);
OSMO_ASSERT(rc < 0);
printf("Testing for no input\n");
rc = osmo_environment_filter(out, ARRAY_SIZE(out), NULL, filter);
OSMO_ASSERT(rc == 1 && out[0] == NULL);
printf("Success!\n");
}
static void test_env_append(void)
{
char *out[256] = {
"FOO=a",
"BAR=b",
"BAZ=c",
NULL,
};
char *add[] = {
"MAHL=zeit",
"GSM=global",
"UMTS=universal",
"LTE=evolved",
NULL,
};
int rc;
printf("\n==== osmo_environment_append ====\n");
printf("Input Environment:\n");
env_dump(out);
printf("Input Addition:\n");
env_dump(add);
rc = osmo_environment_append(out, ARRAY_SIZE(out), add);
printf("Output Environment (%d)\n", rc);
env_dump(out);
OSMO_ASSERT(rc == 8);
printf("Success!\n");
}
static void test_close_fd(void)
{
struct stat st;
int fds[2];
int rc;
printf("\n==== osmo_close_all_fds_above ====\n");
/* create some extra fds */
rc = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
OSMO_ASSERT(rc == 0);
rc = fstat(fds[0], &st);
OSMO_ASSERT(rc == 0);
osmo_close_all_fds_above(2);
rc = fstat(fds[0], &st);
OSMO_ASSERT(rc == -1 && errno == EBADF);
rc = fstat(fds[1], &st);
OSMO_ASSERT(rc == -1 && errno == EBADF);
printf("Success!\n");
}
static void test_system_nowait(void)
{
char *addl_env[] = {
"MAHLZEIT=spaet",
NULL
};
int rc, pid, i;
printf("\n==== osmo_system_nowait ====\n");
pid = osmo_system_nowait("env | grep MAHLZEIT 1>&2", osmo_environment_whitelist, addl_env);
OSMO_ASSERT(pid > 0);
for (i = 0; i < 10; i++) {
sleep(1);
rc = waitpid(pid, NULL, WNOHANG);
if (rc == pid) {
printf("Success!\n");
return;
}
}
printf("ERROR: child didn't terminate within 10s\n");
}
int main(int argc, char **argv)
{
test_env_filter();
test_env_append();
test_close_fd();
test_system_nowait();
exit(0);
}
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