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#include <arpa/inet.h>
#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include "runes.h"
#define MAX_SOCKET_PATH_LEN \
(sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path))
static int runes_socket_open_client(char *name);
int main (int argc, char *argv[])
{
char *name, *buf;
int s, i;
size_t len, offset;
uint32_t argc32 = argc, argv_len;
name = runes_get_socket_name();
s = runes_socket_open_client(name);
len = sizeof(argc32) + sizeof(argv_len);
for (i = 0; i < argc; ++i) {
len += strlen(argv[i]) + 1;
}
buf = malloc(len);
((uint32_t*)buf)[0] = htonl(argc32);
offset = sizeof(argc32) + sizeof(argv_len);
((uint32_t*)buf)[1] = htonl(len - offset);
for (i = 0; i < argc; ++i) {
size_t arg_len = strlen(argv[i]) + 1;
memcpy(buf + offset, argv[i], arg_len);
offset += arg_len;
}
send(s, buf, offset, 0);
free(buf);
shutdown(s, SHUT_RDWR);
return 0;
}
static int runes_socket_open_client(char *name)
{
int s;
struct sockaddr_un client;
if (strlen(name) + 1 > MAX_SOCKET_PATH_LEN) {
runes_die("socket path %s is too long", name);
}
s = socket(AF_UNIX, SOCK_STREAM, 0);
if (s < 0) {
runes_die("couldn't create socket: %s", strerror(errno));
}
client.sun_family = AF_UNIX;
strcpy(client.sun_path, name);
if (connect(s, (struct sockaddr*)(&client), sizeof(struct sockaddr_un))) {
runes_die("couldn't connect to socket at %s: %s", name,
strerror(errno));
}
return s;
}
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