usr/src/usr.bin/tn3270/api/api_bsd.c

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>

#include "../api/api.h"


static int sock = -1;

api_open_api(string)
char    *string;                /* if non-zero, where to connect to */
{
    struct sockaddr_in server;
    struct hostent *hp;
    char *getenv();
    char thehostname[100];
    int port;

    if (string == 0) {
        string = getenv("API3270");     /* Get API */
        if (string == 0) {
            fprintf(stderr,
                        "API3270 environmental variable not set - no API.\n");
            return -1;                  /* Nothing */
        }
    }

    if (sscanf(string, "%[^:]:%d", thehostname, &port) != 2) {
        fprintf(stderr, "API3270 environmental variable has bad format.\n");
        return -1;
    }
    /* Now, try to connect */
    sock = socket(AF_INET, SOCK_STREAM, 0);
    if (sock < 0) {
        perror("opening API socket");
        return -1;
    }
    server.sin_family = AF_INET;
    hp = gethostbyname(thehostname);
    if (hp == 0) {
        fprintf(stderr, "%s specifies bad host name.\n", string);
        return -1;
    }
    bcopy(hp->h_addr, &server.sin_addr, hp->h_length);
    server.sin_port = htons(port);

    if (connect(sock, &server, sizeof server) < 0) {
        perror("connecting to API server");
        return -1;
    }
    /* YEAH */
    return 0;           /* Happiness! */
}


api_exch_api(regs, sregs)
union REGS *regs;
struct SREGS *sregs;
{
}