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/* $Id: ipc.c 5 2024-09-25 00:19:35Z nishi $ */

#include "cm_ipc.h"

#include <sys/socket.h>
#include <sys/un.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>

int cm_ipc_connect(void) {
        struct sockaddr_un sun;
        memset(&sun, 0, sizeof(sun));
        int sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if(sock == -1) {
                return -1;
        }
        sun.sun_family = AF_LOCAL;
        strcpy(sun.sun_path, SOCK_PATH);
        int ret = connect(sock, (const struct sockaddr*)&sun, sizeof(sun));
        if(ret == -1) {
                close(sock);
                return -1;
        }
        return sock;
}

int cm_ipc_create(void) {
        struct sockaddr_un sun;
        memset(&sun, 0, sizeof(sun));
        int sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if(sock == -1) {
                return -1;
        }
        remove(SOCK_PATH);
        sun.sun_family = AF_LOCAL;
        strcpy(sun.sun_path, SOCK_PATH);
        if(bind(sock, (const struct sockaddr*)&sun, sizeof(sun)) == -1) {
                close(sock);
                return -1;
        }
        if(listen(sock, 128) == -1) {
                close(sock);
                return -1;
        }
        chmod(sun.sun_path, 0660);
        return sock;
}