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Convert DOS error numbers into UNIX errno values.

This commit is contained in:
drochner 1997-09-17 18:09:04 +00:00
parent 4162c9025a
commit 2fba0a4db7
1 changed files with 41 additions and 14 deletions
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55
sys/arch/i386/stand/lib/dosfile.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dosfile.c,v 1.3 1997/06/13 13:36:08 drochner Exp $ */
/* $NetBSD: dosfile.c,v 1.4 1997/09/17 18:09:04 drochner Exp $ */
/*
* Copyright (c) 1996
@ -41,6 +41,7 @@
#include <lib/libsa/stand.h>
#include "diskbuf.h"
#include "dosfile.h"
extern int dosopen __P((char *));
extern void dosclose __P((int));
@ -53,6 +54,27 @@ struct dosfile {
extern int doserrno; /* in dos_file.S */
static int dos2errno()
{
int err;
switch(doserrno) {
case 1:
case 4:
case 12:
default:
err = EIO;
case 2:
case 3:
err = ENOENT;
case 5:
err = EPERM;
case 6:
err = EINVAL;
}
return(err);
}
int
dos_open(path, f)
char *path;
@ -67,9 +89,11 @@ dos_open(path, f)
df->off = 0;
df->doshandle = dosopen(path);
if (df->doshandle < 0) {
#ifdef DEBUG
printf("DOS error %d\n", doserrno);
#endif
free(df, sizeof(*df));
return (-1);
return (dos2errno());
}
f->f_fsdata = (void *) df;
return (0);
@ -78,9 +102,9 @@ dos_open(path, f)
int
dos_read(f, addr, size, resid)
struct open_file *f;
char *addr;
u_int size;
u_int *resid; /* out */
void *addr;
size_t size;
size_t *resid; /* out */
{
struct dosfile *df;
int got;
@ -108,12 +132,14 @@ dos_read(f, addr, size, resid)
tgot = dosread(df->doshandle, diskbuf, tsize);
if (tgot < 0) {
#ifdef DEBUG
printf("DOS error %d\n", doserrno);
return (-1);
#endif
return (dos2errno());
}
bcopy(diskbuf, addr, tgot);
addr += tgot;
(unsigned long)addr += tgot;
lsize -= tgot;
if (tgot != tsize)
@ -124,8 +150,10 @@ dos_read(f, addr, size, resid)
got = dosread(df->doshandle, addr, size);
if (got < 0) {
#ifdef DEBUG
printf("DOS error %d\n", doserrno);
return (-1);
#endif
return (dos2errno());
}
}
@ -154,12 +182,11 @@ dos_close(f)
int
dos_write(f, start, size, resid)
struct open_file *f;
char *start;
u_int size;
u_int *resid; /* out */
void *start;
size_t size;
size_t *resid; /* out */
{
errno = EROFS;
return (-1);
return (EROFS);
}
int
@ -216,7 +243,7 @@ dos_seek(f, offset, where)
}
res = dosseek(df->doshandle, offset, doswhence);
if (res == -1) {
errno = EIO;
errno = dos2errno();
return (-1);
}
#ifdef DOS_CHECK