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stat.c
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1994-03-29
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RCS_ID_C="$Id: stat.c,v 3.1 1994/03/29 12:47:53 ppessi Exp $";
/*
* stat.c --- stat() for Network Support Library
*
* Author: ppessi <Pekka.Pessi@hut.fi>
*
* This file is part of the AmiTCP/IP Network Support Library.
*
* Copyright © 1993,1994 AmiTCP/IP Group, <amitcp-group@hut.fi>
* Helsinki University of Technology, Finland.
* All rights reserved.
*
* Created : Sun Mar 27 20:07:40 1994 ppessi
* Last modified: Tue Mar 29 15:22:20 1994 ppessi
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
/* DOS 3.0 and MuFS extensions to file info block */
#include "fibex.h"
#include "netlib.h"
#include <proto/dos.h>
#include <proto/utility.h>
int stat(const char *name, struct stat *st)
{
short found;
register int rc = -1;
BPTR lock;
if (st == NULL || ((1 & (long)st) == 1)) {
errno = EFAULT;
return -1;
}
lock = Lock(name, SHARED_LOCK);
if (found = lock != NULL) {
if (Examine(lock, __dostat_fib)) {
__dostat(__dostat_fib, st);
st->st_dev = (dev_t)((struct FileLock *)BADDR(lock))->fl_Task;
rc = 0;
} else {
errno = EIO;
}
} else {
UBYTE errcode = IoErr();
if (errcode == ERROR_OBJECT_IN_USE) {
rc = lstat(name, st);
} else {
set_errno(errcode);
}
}
if (lock)
UnLock(lock);
return rc;
}
int lstat(const char *name, struct stat *st)
{
/* Cannot lock - do examine via Examine()/ExNext() */
int rc = -1;
char *cname;
if (st == NULL || ((1 & (long)st) == 1)) {
errno = EFAULT;
return -1;
}
cname = malloc(strlen(name) + 1);
if (cname) {
BPTR lock;
char *pp = PathPart(strcpy(cname, name));
*pp = '\0';
if (lock = Lock(cname, SHARED_LOCK)) {
pp = FilePart(name);
if (Examine(lock, __dostat_fib)) {
while (ExNext(lock, __dostat_fib)) {
if (Stricmp(pp, __dostat_fib->fib_FileName) == 0) {
__dostat(__dostat_fib, st);
st->st_dev = (dev_t)((struct FileLock *)BADDR(lock))->fl_Task;
rc = 0;
break;
}
}
}
if (rc != 0)
errno = ENOENT;
} else {
set_errno(IoErr());
}
free(cname);
} else {
errno = ENOMEM;
}
return rc;
}