diff options
Diffstat (limited to 'sys/lib/libsa/unixdev.c')
| -rw-r--r-- | sys/lib/libsa/unixdev.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/sys/lib/libsa/unixdev.c b/sys/lib/libsa/unixdev.c new file mode 100644 index 00000000000..a74e16428f7 --- /dev/null +++ b/sys/lib/libsa/unixdev.c @@ -0,0 +1,179 @@ +/* $OpenBSD: unixdev.c,v 1.1 1997/02/16 14:51:58 mickey Exp $ */ + +/* + * Copyright (c) 1996 Michael Shalayeff + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Michael Shalayeff. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include <sys/param.h> +#include <sys/types.h> +#include <sys/syscall.h> +#include <string.h> +#define open uopen +#include <fcntl.h> +#undef open +#include "libsa.h" +#include "unixdev.h" + +int +unixstrategy(devdata, rw, blk, size, buf, rsize) + void *devdata; + int rw; + daddr_t blk; + size_t size; + void *buf; + size_t *rsize; +{ + int rc = 0; + +#ifdef UNIX_DEBUG + printf("unixstrategy: %s %d bytes @ %d\n", + (rw==F_READ?"reading":"writing"), size, blk); +#endif + if ((rc = ulseek((int)devdata, blk * DEV_BSIZE, 0)) >= 0) + rc = rw==F_READ? uread((int)devdata, buf, size) : + uwrite((int)devdata, buf, size); + + if (rc >= 0) { + *rsize = (size_t)rc; + rc = 0; + } else + rc = errno; + + return rc; +} + +int +unixopen(struct open_file *f, ...) +{ + register int fd; + register va_list ap; + register char **file, *p = NULL; + + va_start(ap, f); + file = va_arg(ap, char **); + va_end(ap); + +#ifdef UNIX_DEBUG + printf("unixopen: %s\n", *file); +#endif + + if (strncmp("/dev/", *file, 5) == 0) { + /* p = strchr(p + 5, '/') */ + for (p = *file + 5; *p != '\0' && *p != '/'; p++); + if (*p == '/') + *p = '\0'; + } + + f->f_devdata = (void *)(fd = uopen(*file, O_RDWR, 0)); + + *file = p; + if (p != NULL) + *p = '/'; + + return fd<0? -1: 0; +} + +int +unixclose(f) + struct open_file *f; +{ + return uclose((int)f->f_devdata); +} + +int +unixioctl(f, cmd, data) + struct open_file *f; + u_long cmd; + void *data; +{ + return uioctl((int)f->f_devdata, cmd, data); +} + +off_t +ulseek( fd, off, wh) + int fd; + off_t off; + int wh; +{ + /* XXX zecond zero is unclear to me, but it works */ + return syscall((quad_t)SYS_lseek, fd, 0, off, 0, wh); +} + + +int +unix_probe() +{ + return 1; +} + +void +unix_putc(c) + int c; +{ + uwrite(1, &c, 1); +} + +int +unix_getc() +{ + int c; + return uread(0, &c, 1)<1? -1: c; +} + +int +unix_ischar() +{ + return 0; +} + +void +usleep(n) + u_int n; +{ + +} + +time_t +getsecs() +{ + return 1; +} + +void +atexit() +{ + +} + +void +__main() +{ +} |