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ecore_con_client_example: allow more features and protocols to be used. 

Instead of a single SSL connection, allow for local, tcp and udp,
optional flush and delete-after-write (--single-message).

Very similar to ecore_ipc_client_example.c
This commit is contained in:
Gustavo Sverzut Barbieri 2016-12-07 13:29:49 -02:00
parent ff8fb25f32
commit 2f0b1d7955
1 changed files with 195 additions and 41 deletions
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236
unsorted/ecore/ecore_con_client_example.c
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@ -8,27 +8,56 @@
#include <stdio.h>
#include <Ecore.h>
#include <Ecore_Con.h>
#include <Ecore_Getopt.h>
/* Ecore_Con client example
* 2010 Mike Blumenkrantz
*/
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
static Ecore_Con_Server *svr;
static int retval = EXIT_SUCCESS;
static Eina_Bool do_flush = EINA_FALSE;
static Eina_Bool single_message = EINA_FALSE;
static void
tls_log_func(int level, const char *str)
static Eina_Bool
_on_stdin(void *data EINA_UNUSED, Ecore_Fd_Handler *fdh EINA_UNUSED)
{
fprintf(stderr, "|<%d>| %s", level, str);
char *line = NULL;
size_t len = 0;
ssize_t r = getline(&line, &len, stdin);
if (r < 0)
{
fprintf(stderr, "ERROR: could not read from stdin: %s\n", strerror(errno));
return ECORE_CALLBACK_CANCEL;
}
if (!svr)
fputs("WARNING: not connected to server, ignored input.\n", stderr);
else
{
ecore_con_server_send(svr, line, r);
printf("INFO: sent %zd bytes to server.\n", r);
if (do_flush) ecore_con_server_flush(svr);
if (single_message)
{
ecore_con_server_del(svr);
svr = NULL;
ecore_main_loop_quit();
}
}
free(line);
return ECORE_CALLBACK_RENEW;
}
#endif
Eina_Bool
_add(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_Con_Event_Server_Add *ev)
{
printf("Server with ip %s connected!\n", ecore_con_server_ip_get(ev->server));
ecore_con_server_send(ev->server, "hello!", 6);
ecore_con_server_flush(ev->server);
ecore_con_server_send(ev->server, "hello!", strlen("hello!"));
if (do_flush) ecore_con_server_flush(ev->server);
return ECORE_CALLBACK_RENEW;
}
@ -37,6 +66,8 @@ Eina_Bool
_del(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_Con_Event_Server_Del *ev)
{
printf("Lost server with ip %s!\n", ecore_con_server_ip_get(ev->server));
ecore_con_server_del(svr);
svr = NULL;
ecore_main_loop_quit();
return ECORE_CALLBACK_RENEW;
}
@ -44,51 +75,157 @@ _del(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_Con_Event_Server_Del *e
Eina_Bool
_data(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_Con_Event_Server_Data *ev)
{
char fmt[128];
printf("Received %i bytes from server:\n"
">>>>>\n"
"%.*s\n"
">>>>>\n",
ev->size,
ev->size, ev->data);
snprintf(fmt, sizeof(fmt),
"Received %i bytes from server:\n"
">>>>>\n"
"%%.%is\n"
">>>>>\n",
ev->size, ev->size);
printf(fmt, ev->data);
return ECORE_CALLBACK_RENEW;
}
int
main()
Eina_Bool
_write(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_Con_Event_Server_Write *ev)
{
Ecore_Con_Server *svr;
Eina_Iterator *it;
const char *ca;
printf("Sent %d bytes to server\n", ev->size);
return ECORE_CALLBACK_RENEW;
}
static const char *types_strs[] = {
"tcp",
"udp",
"ssl",
"local-user",
"local-system",
NULL
};
static const Ecore_Getopt options = {
"ecore_con_client_example", /* program name */
NULL, /* usage line */
"1", /* version */
"(C) 2016 Enlightenment Project; 2010 Mike Blumenkrantz", /* copyright */
"BSD 2-Clause", /* license */
/* long description, may be multiline and contain \n */
"Example of ecore_con_server_connect()\n",
EINA_FALSE,
{
ECORE_GETOPT_CHOICE('t', "type", "Server type to use, defaults to 'tcp'", types_strs),
ECORE_GETOPT_STORE_TRUE('P', "no-proxy", "Do not use SOCKS proxy for remote connections."),
ECORE_GETOPT_STORE_TRUE('f', "flush", "Force a flush after every send call."),
ECORE_GETOPT_STORE_TRUE('m', "single-message", "Send a single message and delete the server."),
ECORE_GETOPT_VERSION('V', "version"),
ECORE_GETOPT_COPYRIGHT('C', "copyright"),
ECORE_GETOPT_LICENSE('L', "license"),
ECORE_GETOPT_HELP('h', "help"),
ECORE_GETOPT_STORE_METAVAR_STR(0, NULL, "The server name.", "name"),
ECORE_GETOPT_STORE_METAVAR_INT(0, NULL, "The server port.", "port"),
ECORE_GETOPT_SENTINEL
}
};
int
main(int argc, char *argv[])
{
char *name = NULL;
char *type_choice = NULL;
Ecore_Con_Type type;
int port = -1;
Eina_Bool no_proxy = EINA_FALSE;
Eina_Bool quit_option = EINA_FALSE;
Ecore_Getopt_Value values[] = {
ECORE_GETOPT_VALUE_STR(type_choice),
ECORE_GETOPT_VALUE_BOOL(no_proxy),
ECORE_GETOPT_VALUE_BOOL(do_flush),
ECORE_GETOPT_VALUE_BOOL(single_message),
/* standard block to provide version, copyright, license and help */
ECORE_GETOPT_VALUE_BOOL(quit_option), /* -V/--version quits */
ECORE_GETOPT_VALUE_BOOL(quit_option), /* -C/--copyright quits */
ECORE_GETOPT_VALUE_BOOL(quit_option), /* -L/--license quits */
ECORE_GETOPT_VALUE_BOOL(quit_option), /* -h/--help quits */
/* positional argument */
ECORE_GETOPT_VALUE_STR(name),
ECORE_GETOPT_VALUE_INT(port),
ECORE_GETOPT_VALUE_NONE /* sentinel */
};
int args;
eina_init();
ecore_init();
ecore_con_init();
#ifdef HAVE_GNUTLS
gnutls_global_set_log_level(9);
gnutls_global_set_log_function(tls_log_func);
#endif
if (!(it = eina_file_ls("/etc/ssl/certs")))
exit(1);
if (!(svr = ecore_con_server_connect(ECORE_CON_REMOTE_TCP | ECORE_CON_USE_MIXED, "www.verisign.com", 443, NULL)))
exit(1);
/* add all the CAs */
EINA_ITERATOR_FOREACH(it, ca)
args = ecore_getopt_parse(&options, values, argc, argv);
if (args < 0)
{
if (!ecore_con_ssl_server_cafile_add(svr, ca))
printf("Could not load CA: %s!\n", ca);
eina_stringshare_del(ca);
fputs("ERROR: Could not parse command line options.\n", stderr);
retval = EXIT_FAILURE;
goto end;
}
eina_iterator_free(it);
ecore_con_ssl_server_verify(svr);
if (quit_option) goto end;
args = ecore_getopt_parse_positional(&options, values, argc, argv, args);
if (args < 0)
{
fputs("ERROR: Could not parse positional arguments.\n", stderr);
retval = EXIT_FAILURE;
goto end;
}
if (!type_choice) type_choice = "tcp";
if (strcmp(type_choice, "tcp") == 0)
type = ECORE_CON_REMOTE_TCP;
else if (strcmp(type_choice, "udp") == 0)
type = ECORE_CON_REMOTE_UDP;
else if (strcmp(type_choice, "ssl") == 0)
type = ECORE_CON_REMOTE_TCP | ECORE_CON_USE_MIXED | ECORE_CON_LOAD_CERT;
else if (strcmp(type_choice, "local-user") == 0)
type = ECORE_CON_LOCAL_USER;
else if (strcmp(type_choice, "system") == 0)
type = ECORE_CON_LOCAL_SYSTEM;
else
{
fprintf(stderr, "ERROR: unsupported --type/-t '%s'\n", type_choice);
retval = EXIT_FAILURE;
goto end;
}
if (no_proxy) type |= ECORE_CON_NO_PROXY;
svr = ecore_con_server_connect(type, name, port, NULL);
if (!svr) goto end;
if (strcmp(type_choice, "ssl") == 0)
{
Eina_Iterator *it;
const char *ca;
if (!(it = eina_file_ls("/etc/ssl/certs")))
{
retval = EXIT_FAILURE;
goto no_mainloop;
}
/* add all the CAs */
EINA_ITERATOR_FOREACH(it, ca)
{
if (!ecore_con_ssl_server_cafile_add(svr, ca))
fprintf(stderr, "WARNING: could not load CA: %s!\n", ca);
eina_stringshare_del(ca);
}
eina_iterator_free(it);
ecore_con_ssl_server_verify(svr);
}
/* set event handler for server connect */
ecore_event_handler_add(ECORE_CON_EVENT_SERVER_ADD, (Ecore_Event_Handler_Cb)_add, NULL);
@ -96,8 +233,25 @@ main()
ecore_event_handler_add(ECORE_CON_EVENT_SERVER_DEL, (Ecore_Event_Handler_Cb)_del, NULL);
/* set event handler for receiving server data */
ecore_event_handler_add(ECORE_CON_EVENT_SERVER_DATA, (Ecore_Event_Handler_Cb)_data, NULL);
/* set event handler that notifies of sent data */
ecore_event_handler_add(ECORE_CON_EVENT_SERVER_WRITE, (Ecore_Event_Handler_Cb)_write, NULL);
ecore_main_fd_handler_add(STDIN_FILENO, ECORE_FD_READ, _on_stdin, NULL, NULL, NULL);
/* start client */
ecore_main_loop_begin();
}
no_mainloop:
if (svr)
{
ecore_con_server_del(svr);
svr = NULL;
}
end:
ecore_con_shutdown();
ecore_shutdown();
eina_shutdown();
return retval;
}