soc_ioctl.c

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#include "soc_common.h"
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/ioctl.h>

int ioctl(int fd, int request, ...)
{
    int ret;
    int flags;
    int *value;
    va_list ap;

    va_start(ap, request);

    switch(request) {
    case FIONBIO:
        value = va_arg(ap, int*);
        if(value == NULL) {
            errno = EFAULT;
            ret = -1;
        }

        flags = fcntl(fd, F_GETFL, 0);
        if(flags == -1) {
            errno = SOC_GetErrno();
            va_end(ap);
            return -1;
        }

        if(*value) ret = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
        else       ret = fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);

        if(ret != 0)
            errno = SOC_GetErrno();

        break;

    default:
        errno = ENOTTY;
        ret = -1;
        break;
    }

    va_end(ap);

    return ret;
}