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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <stdint.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <unistd.h>
#include "log.h"
#include "stringop.h"
#include "ipc.h"
#include "readline.h"
static const char ipc_magic[] = {'i', '3', '-', 'i', 'p', 'c'};
static const size_t ipc_header_size = sizeof(ipc_magic)+8;
char *get_socketpath(void) {
FILE *fp = popen("sway --get-socketpath", "r");
if (!fp) {
return NULL;
}
char *line = read_line(fp);
pclose(fp);
return line;
}
int ipc_open_socket(const char *socket_path) {
struct sockaddr_un addr;
int socketfd;
if ((socketfd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
sway_abort("Unable to open Unix socket");
}
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, socket_path);
int l = sizeof(addr.sun_family) + strlen(addr.sun_path);
if (connect(socketfd, (struct sockaddr *)&addr, l) == -1) {
sway_abort("Unable to connect to %s", socket_path);
}
return socketfd;
}
char *ipc_single_command(int socketfd, uint32_t type, const char *payload, uint32_t *len) {
char data[ipc_header_size];
uint32_t *data32 = (uint32_t *)(data + sizeof(ipc_magic));
memcpy(data, ipc_magic, sizeof(ipc_magic));
data32[0] = *len;
data32[1] = type;
if (write(socketfd, data, ipc_header_size) == -1) {
sway_abort("Unable to send IPC header");
}
if (write(socketfd, payload, *len) == -1) {
sway_abort("Unable to send IPC payload");
}
size_t total = 0;
while (total < ipc_header_size) {
ssize_t received = recv(socketfd, data + total, ipc_header_size - total, 0);
if (received < 0) {
sway_abort("Unable to receive IPC response");
}
total += received;
}
total = 0;
*len = data32[0];
char *response = malloc(*len + 1);
while (total < *len) {
ssize_t received = recv(socketfd, response + total, *len - total, 0);
if (received < 0) {
sway_abort("Unable to receive IPC response");
}
total += received;
}
response[*len] = '\0';
return response;
}
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