cliconn.c

来自「unix环境高级编程的源代码」· C语言 代码 · 共 21 行

#include    <sys/types.h>
#include    <sys/stat.h>
#include    <fcntl.h>
#include    "ourhdr.h"

/* Create a client endpoint and connect to a server. */

int            /* returns fd if all OK, <0 on error */
cli_conn(const char *name)
{
    int        fd;

                /* open the mounted stream */
    if ( (fd = open(name, O_RDWR)) < 0)
        return(-1);
    if (isastream(fd) == 0)
        return(-2);

    return(fd);
}