FreeCalypso > hg > themwi-system-sw
view mtctest/sock_conn.c @ 25:fd43f179ff1d
themwi-mncc: need to initialize sa_len before accept call
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 28 Jun 2022 18:47:56 -0800 |
parents | cc0e1c6e33c3 |
children | c08d81fa8117 |
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/* * In this module we implement our connection to the MNCC daemon's * mtcall socket. */ #include <sys/types.h> #include <sys/socket.h> #include <sys/un.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include "../include/mncc.h" static char mtcall_socket_pathname[] = "/var/gsm/mtcall_socket"; int mtc_socket; connect_mtc_socket() { struct sockaddr_un sa; unsigned sa_len; int rc; mtc_socket = socket(AF_UNIX, SOCK_SEQPACKET, 0); if (mtc_socket < 0) { perror("socket(AF_UNIX, SOCK_SEQPACKET, 0)"); exit(1); } fill_sockaddr_un(mtcall_socket_pathname, &sa, &sa_len); rc = connect(mtc_socket, (struct sockaddr *) &sa, sa_len); if (rc < 0) { perror(mtcall_socket_pathname); exit(1); } return(0); } void mtc_socket_select() { union mncc_msg msg; int rc; rc = recv(mtc_socket, &msg, sizeof msg, 0); if (rc < 0) { perror("read from socket"); exit(1); } if (rc < 4) { fprintf(stderr, "short read from socket: %d bytes", rc); exit(1); } msg_from_mncc(&msg, rc); } send_mncc_to_gsm(msg, msglen) union mncc_msg *msg; unsigned msglen; { return send(mtc_socket, msg, msglen, 0); }