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#include <errno.h>
#include <getopt.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include "wmediumd/api.h"
void print_help(int exit_code) {
printf(
"wmediumd_ack_test_client - test client for wmediumd crash that is "
"related with ack\n\n");
printf("Usage: wmediumd_ack_test_client -s PATH\n");
printf(" Options:\n");
printf(" - h : Print help\n");
printf(" - s : Path for unix socket of wmediumd api server\n");
exit(exit_code);
}
int write_fixed(int sock, void *data, int len) {
int remain = len;
int pos = 0;
while (remain > 0) {
int actual_written = write(sock, ((char *)data) + pos, remain);
if (actual_written <= 0) {
return actual_written;
}
remain -= actual_written;
pos += actual_written;
}
return pos;
}
int read_fixed(int sock, void *data, int len) {
int remain = len;
int pos = 0;
while (remain > 0) {
int actual_read = read(sock, ((char *)data) + pos, remain);
if (actual_read <= 0) {
return actual_read;
}
remain -= actual_read;
pos += actual_read;
}
return pos;
}
int wmediumd_send_packet(int sock, uint32_t type, void *data, uint32_t len) {
struct wmediumd_message_header header;
header.type = type;
header.data_len = len;
write_fixed(sock, &header, sizeof(uint32_t) * 2);
if (len != 0) {
write_fixed(sock, data, len);
}
return 0;
}
int wmediumd_read_packet(int sock) {
struct wmediumd_message_header header;
read_fixed(sock, &header, sizeof(uint32_t) * 2);
if (header.data_len != 0) {
char buf[4096];
read_fixed(sock, buf, header.data_len);
}
return 0;
}
int main(int argc, char **argv) {
int opt;
char *wmediumd_api_server_path = NULL;
while ((opt = getopt(argc, argv, "hs:")) != -1) {
switch (opt) {
case ':':
fprintf(stderr,
"error: Option `%c' "
"needs a value\n\n",
optopt);
break;
case 'h':
print_help(0);
break;
case 's':
if (wmediumd_api_server_path != NULL) {
fprintf(stderr,
"error: You must provide just one option for `%c`\n\n",
optopt);
}
wmediumd_api_server_path = strdup(optarg);
break;
default:
break;
}
}
if (wmediumd_api_server_path == NULL) {
fprintf(stderr, "error: must specify wmediumd api server path\n\n");
print_help(-1);
}
int sock = socket(AF_UNIX, SOCK_STREAM, 0);
struct sockaddr_un addr;
addr.sun_family = AF_UNIX;
if (strlen(wmediumd_api_server_path) >= sizeof(addr.sun_path)) {
fprintf(stderr, "error: unix socket path is too long(maximum %d)\n",
sizeof(addr.sun_path) - 1);
print_help(-1);
}
strncpy(addr.sun_path, wmediumd_api_server_path,
strlen(wmediumd_api_server_path));
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
fprintf(stderr, "Cannot connect to %s\n", wmediumd_api_server_path);
return -1;
}
struct wmediumd_message_control control_message;
control_message.flags = WMEDIUMD_CTL_RX_ALL_FRAMES;
wmediumd_send_packet(sock, WMEDIUMD_MSG_REGISTER, NULL, 0);
wmediumd_read_packet(sock); /* Ack */
wmediumd_send_packet(sock, WMEDIUMD_MSG_SET_CONTROL, &control_message,
sizeof(control_message));
wmediumd_read_packet(sock); /* Ack */
wmediumd_read_packet(sock);
/* Send packet while receiving packet from wmediumd */
wmediumd_send_packet(sock, WMEDIUMD_MSG_SET_CONTROL, &control_message,
sizeof(control_message));
wmediumd_read_packet(sock);
wmediumd_send_packet(sock, WMEDIUMD_MSG_ACK, NULL, 0);
close(sock);
free(wmediumd_api_server_path);
return 0;
}
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