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#include <gio/gio.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#ifdef G_OS_UNIX
#include <unistd.h>
#include <gio/gunixinputstream.h>
#include <gio/gunixoutputstream.h>
#else
#include <io.h>
#endif
static GOptionEntry options[] = {
{NULL}
};
static void
write_all (int fd,
const guint8* buf,
gsize len)
{
while (len > 0)
{
gssize bytes_written = write (fd, buf, len);
if (bytes_written < 0)
g_error ("Failed to write to fd %d: %s",
fd, strerror (errno));
buf += bytes_written;
len -= bytes_written;
}
}
static int
echo_mode (int argc,
char **argv)
{
int i;
for (i = 2; i < argc; i++)
{
write_all (1, (guint8*)argv[i], strlen (argv[i]));
write_all (1, (guint8*)"\n", 1);
}
return 0;
}
static int
echo_stdout_and_stderr_mode (int argc,
char **argv)
{
int i;
for (i = 2; i < argc; i++)
{
write_all (1, (guint8*)argv[i], strlen (argv[i]));
write_all (1, (guint8*)"\n", 1);
write_all (2, (guint8*)argv[i], strlen (argv[i]));
write_all (2, (guint8*)"\n", 1);
}
return 0;
}
static int
cat_mode (int argc,
char **argv)
{
GIOChannel *chan_stdin;
GIOChannel *chan_stdout;
GIOStatus status;
char buf[1024];
gsize bytes_read, bytes_written;
GError *local_error = NULL;
GError **error = &local_error;
chan_stdin = g_io_channel_unix_new (0);
g_io_channel_set_encoding (chan_stdin, NULL, error);
g_assert_no_error (local_error);
chan_stdout = g_io_channel_unix_new (1);
g_io_channel_set_encoding (chan_stdout, NULL, error);
g_assert_no_error (local_error);
while (TRUE)
{
do
status = g_io_channel_read_chars (chan_stdin, buf, sizeof (buf),
&bytes_read, error);
while (status == G_IO_STATUS_AGAIN);
if (status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
break;
do
status = g_io_channel_write_chars (chan_stdout, buf, bytes_read,
&bytes_written, error);
while (status == G_IO_STATUS_AGAIN);
if (status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
break;
}
g_io_channel_unref (chan_stdin);
g_io_channel_unref (chan_stdout);
if (local_error)
{
g_printerr ("I/O error: %s\n", local_error->message);
g_clear_error (&local_error);
return 1;
}
return 0;
}
static gint
sleep_forever_mode (int argc,
char **argv)
{
GMainLoop *loop;
loop = g_main_loop_new (NULL, TRUE);
g_main_loop_run (loop);
return 0;
}
static int
write_to_fds (int argc, char **argv)
{
int i;
for (i = 2; i < argc; i++)
{
int fd = atoi (argv[i]);
FILE *f = fdopen (fd, "w");
const char buf[] = "hello world\n";
size_t bytes_written;
g_assert (f != NULL);
bytes_written = fwrite (buf, 1, sizeof (buf), f);
g_assert (bytes_written == sizeof (buf));
if (fclose (f) == -1)
g_assert_not_reached ();
}
return 0;
}
static int
env_mode (int argc, char **argv)
{
char **env;
int i;
env = g_get_environ ();
for (i = 0; env[i]; i++)
g_print ("%s\n", env[i]);
g_strfreev (env);
return 0;
}
static int
cwd_mode (int argc, char **argv)
{
char *cwd;
cwd = g_get_current_dir ();
g_print ("%s\n", cwd);
g_free (cwd);
return 0;
}
static int
printenv_mode (int argc, char **argv)
{
gint i;
for (i = 2; i < argc; i++)
{
const gchar *value = g_getenv (argv[i]);
if (value != NULL)
g_print ("%s=%s\n", argv[i], value);
}
return 0;
}
int
main (int argc, char **argv)
{
GOptionContext *context;
GError *error = NULL;
const char *mode;
context = g_option_context_new ("MODE - Test GSubprocess stuff");
g_option_context_add_main_entries (context, options, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("%s: %s\n", argv[0], error->message);
return 1;
}
if (argc < 2)
{
g_printerr ("MODE argument required\n");
return 1;
}
mode = argv[1];
if (strcmp (mode, "noop") == 0)
return 0;
else if (strcmp (mode, "exit1") == 0)
return 1;
else if (strcmp (mode, "assert-argv0") == 0)
{
if (strcmp (argv[0], "moocow") == 0)
return 0;
g_printerr ("argv0=%s != moocow\n", argv[0]);
return 1;
}
else if (strcmp (mode, "echo") == 0)
return echo_mode (argc, argv);
else if (strcmp (mode, "echo-stdout-and-stderr") == 0)
return echo_stdout_and_stderr_mode (argc, argv);
else if (strcmp (mode, "cat") == 0)
return cat_mode (argc, argv);
else if (strcmp (mode, "sleep-forever") == 0)
return sleep_forever_mode (argc, argv);
else if (strcmp (mode, "write-to-fds") == 0)
return write_to_fds (argc, argv);
else if (strcmp (mode, "env") == 0)
return env_mode (argc, argv);
else if (strcmp (mode, "cwd") == 0)
return cwd_mode (argc, argv);
else if (strcmp (mode, "printenv") == 0)
return printenv_mode (argc, argv);
else
{
g_printerr ("Unknown MODE %s\n", argv[1]);
return 1;
}
return TRUE;
}
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