patty/examples/connect.c
2024-03-01 00:20:47 -05:00

91 lines
2 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <fcntl.h>
#include <errno.h>
#include <patty/ax25.h>
static void usage(int argc, char **argv, const char *message, ...) {
if (message != NULL) {
va_list args;
va_start(args, message);
vfprintf(stderr, message, args);
fprintf(stderr, "\n");
va_end(args);
}
fprintf(stderr, "usage: %s /var/run/patty/patty.sock remotecall\n", argv[0]);
exit(1);
}
int main(int argc, char **argv) {
patty_client *client;
patty_ax25_addr peer;
int fd;
uint8_t buf[4096];
ssize_t readlen;
if (argc < 2) {
usage(argc, argv, "No patty socket provided");
} else if (argc < 3) {
usage(argc, argv, "No remote callsign provided");
} else if (argc > 3) {
usage(argc, argv, "Too many arguments provided");
}
patty_ax25_pton(argv[2], &peer);
if ((client = patty_client_new(argv[1])) == NULL) {
fprintf(stderr, "%s: %s: %s: %s\n",
argv[0], "patty_client_new()", argv[1], strerror(errno));
goto error_client_new;
}
if ((fd = patty_client_socket(client, PATTY_AX25_PROTO_NONE, PATTY_AX25_SOCK_STREAM)) < 0) {
fprintf(stderr, "%s: %s: %s\n",
argv[0], "patty_client_socket()", strerror(errno));
goto error_client_socket;
}
if (patty_client_connect(client, fd, &peer) < 0) {
fprintf(stderr, "%s: %s: %s\n",
argv[0], "patty_client_connect()", strerror(errno));
goto error_client_connect;
}
while ((readlen = read(fd, buf, sizeof(buf))) > 0) {
if (write(1, buf, readlen) < 0) {
goto error_write;
}
}
patty_client_close(client, fd);
patty_client_destroy(client);
return 0;
error_write:
error_client_connect:
patty_client_close(client, fd);
error_client_socket:
patty_client_destroy(client);
error_client_new:
return 1;
}