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ENVIRON.C
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C/C++ Source or Header
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1991-07-08
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/* ENVIRON.C, UNARJ, R JUNG, 07/07/91
* Implementation dependent routines
* Copyright (c) 1991 by Robert K Jung. All rights reserved.
*
* This code may be freely used in programs that are NOT ARJ archivers
* (both compress and extract ARJ archives).
*
* If you wish to distribute a modified version of this program, you
* MUST indicate that it is a modified version both in the program and
* source code.
*
* If you modify this program, I would appreciate a copy of the new
* source code. I am holding the copyright on the source code, so
* please do not delete my name from the program files or from the
* documentation.
*
* The vanilla section of this file was tested with UNIX in mind.
*
* Modification history:
* Date Programmer Description of modification.
* 04/09/91 R. Jung Rewrote code.
* 04/23/91 M. Adler Portabilized.
* 04/29/91 R. Jung Added get_mode_str().
* 05/08/91 R. Jung Combined set_ftime() and set_fmode().
* 06/03/91 R. Jung Changed arguments in get_mode_str() and
* set_ftime_mode().
* 07/07/91 R. Jung Added default_case_path() and UNIX section.
*
*/
#include "unarj.h"
#ifdef __TURBOC__
#define SUBS_DEFINED
#include <string.h>
#include <dos.h>
#include <io.h>
#include <fcntl.h>
#include <alloc.h>
FILE *
file_open(name, mode)
char *name;
char *mode;
{
return fopen(name, mode);
}
int
file_read(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fread(buf, (size_t) size, (size_t) nitems, stream);
}
int
file_seek(stream, offset, mode)
FILE *stream;
long offset;
int mode;
{
return fseek(stream, offset, mode);
}
long
file_tell(stream)
FILE *stream;
{
return ftell(stream);
}
int
file_write(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fwrite(buf, (size_t) size, (size_t) nitems, stream);
}
voidp *
xmalloc(size)
int size;
{
return (voidp *)malloc((size_t) size);
}
void
case_path(name)
char *name;
{
strupper(name);
}
void
default_case_path(name)
char *name;
{
strupper(name);
}
int
file_exists(name)
char *name;
{
return (access(name, 0) == 0);
}
void
get_mode_str(str, mode)
char *str;
uint mode;
{
strcpy(str, "---W");
if (mode & FA_ARCH)
str[0] = 'A';
if (mode & FA_SYSTEM)
str[1] = 'S';
if (mode & FA_HIDDEN)
str[2] = 'H';
if (mode & FA_RDONLY)
str[3] = 'R';
}
int
set_ftime_mode(name, tstamp, attribute, host)
char *name;
ulong tstamp;
uint attribute;
uint host;
{
FILE *fd;
int code;
if ((fd = fopen(name, "r+b")) == NULL)
return -1;
code = setftime(fileno(fd), (struct ftime *) &tstamp);
fclose(fd);
if (host == OS)
{
if (_chmod(name, 1, attribute) == -1)
return -1;
}
return code;
}
#endif
#ifdef _QC
#define SUBS_DEFINED
#include <string.h>
#include <dos.h>
#include <io.h>
#include <fcntl.h>
#include <malloc.h>
FILE *
file_open(name, mode)
char *name;
char *mode;
{
return fopen(name, mode);
}
int
file_read(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fread(buf, (size_t) size, (size_t) nitems, stream);
}
int
file_seek(stream, offset, mode)
FILE *stream;
long offset;
int mode;
{
return fseek(stream, offset, mode);
}
long
file_tell(stream)
FILE *stream;
{
return ftell(stream);
}
int
file_write(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fwrite(buf, (size_t) size, (size_t) nitems, stream);
}
voidp *
xmalloc(size)
int size;
{
return (voidp *)malloc((size_t) size);
}
void
case_path(name)
char *name;
{
strupper(name);
}
void
default_case_path(name)
char *name;
{
strupper(name);
}
int
file_exists(name)
char *name;
{
return (access(name, 0) == 0);
}
void
get_mode_str(str, mode)
char *str;
uint mode;
{
strcpy(str, "---W");
if (mode & FA_ARCH)
str[0] = 'A';
if (mode & FA_SYSTEM)
str[1] = 'S';
if (mode & FA_HIDDEN)
str[2] = 'H';
if (mode & FA_RDONLY)
str[3] = 'R';
}
int
set_ftime_mode(name, tstamp, attribute, host)
char *name;
ulong tstamp;
uint attribute;
uint host;
{
FILE *fd;
int code;
uint date_stamp, time_stamp;
date_stamp = (uint)(tstamp >> 16);
time_stamp = (uint)(tstamp & 0xFFFF);
if ((fd = fopen(name, "r+b")) == NULL)
return -1;
code = _dos_setftime(fileno(fd), date_stamp, time_stamp);
fclose(fd);
if (host == OS)
{
if (_dos_setfileattr(name, attribute))
return -1;
}
return code;
}
#endif
#ifdef _OS2
#define SUBS_DEFINED
#include <string.h>
#define INCL_DOSFILEMGR
#include <os2.h>
#include <io.h>
#include <fcntl.h>
FILE *
file_open(name, mode)
char *name;
char *mode;
{
return fopen(name, mode);
}
int
file_read(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fread(buf, (size_t) size, (size_t) nitems, stream);
}
int
file_seek(stream, offset, mode)
FILE *stream;
long offset;
int mode;
{
return fseek(stream, offset, mode);
}
long
file_tell(stream)
FILE *stream;
{
return ftell(stream);
}
int
file_write(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fwrite(buf, (size_t) size, (size_t) nitems, stream);
}
voidp *
xmalloc(size)
int size;
{
return (voidp *)malloc((size_t) size);
}
void
case_path(name)
char *name;
{
strupper(name);
}
void
default_case_path(name)
char *name;
{
strupper(name);
}
int
file_exists(name)
char *name;
{
return (access(name, 0) == 0);
}
void
get_mode_str(str, mode)
char *str;
uint mode;
{
strcpy(str, "---W");
if (mode & FA_ARCH)
str[0] = 'A';
if (mode & FA_SYSTEM)
str[1] = 'S';
if (mode & FA_HIDDEN)
str[2] = 'H';
if (mode & FA_RDONLY)
str[3] = 'R';
}
int
set_ftime_mode(name, tstamp, attribute, host)
char *name;
ulong tstamp;
uint attribute;
uint host;
{
int code;
FDATE date_stamp;
FTIME time_stamp;
HFILE handle;
FILESTATUS info;
USHORT action;
date_stamp.day = ts_day (tstamp);
date_stamp.month = ts_month (tstamp);
date_stamp.year = ts_year (tstamp) - 1980;
time_stamp.twosecs = ts_sec (tstamp) / 2;
time_stamp.minutes = ts_min (tstamp);
time_stamp.hours = ts_hour (tstamp);
if (DosOpen (name, &handle, &action, 0L, 0, FILE_OPEN,
OPEN_ACCESS_READWRITE|OPEN_SHARE_DENYREADWRITE, 0L) != 0)
return -1;
info.fdateCreation = date_stamp;
info.ftimeCreation = time_stamp;
info.fdateLastAccess = date_stamp;
info.ftimeLastAccess = time_stamp;
info.fdateLastWrite = date_stamp;
info.ftimeLastWrite = time_stamp;
info.cbFile = 0;
info.cbFileAlloc = 0;
info.attrFile = 0;
code = (int)DosSetFileInfo (handle, 1, (PBYTE)&info, sizeof (info));
(void)DosClose (handle);
if (host == OS)
{
if (DosSetFileMode (name, attribute, 0L))
return -1;
}
return code;
}
#endif
#ifdef UNIX
/* specifically tested under SUN UNIX */
#define SUBS_DEFINED
extern char *strcpy();
extern voidp *malloc();
FILE *
file_open(name, mode)
char *name;
char *mode;
{
return fopen(name, mode);
}
int
file_read(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fread(buf, (int) size, (int) nitems, stream);
}
int
file_seek(stream, offset, mode)
FILE *stream;
long offset;
int mode;
{
return fseek(stream, offset, mode);
}
long
file_tell(stream)
FILE *stream;
{
return ftell(stream);
}
int
file_write(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fwrite(buf, (int) size, (int) nitems, stream);
}
voidp *
xmalloc(size)
int size;
{
return (voidp *)malloc((uint) size);
}
void
case_path(name)
char *name;
{
}
void
default_case_path(name)
char *name;
{
strlower(name);
}
int
file_exists(name)
char *name;
{
FILE *fd;
if ((fd = fopen(name, "rb")) == NULL)
return 0;
fclose(fd);
return 1;
}
void
get_mode_str(str, mode)
char *str;
uint mode;
{
strcpy(str, "---W");
if (mode & FA_ARCH)
str[0] = 'A';
if (mode & FA_SYSTEM)
str[1] = 'S';
if (mode & FA_HIDDEN)
str[2] = 'H';
if (mode & FA_RDONLY)
str[3] = 'R';
}
int
set_ftime_mode(name, tstamp, attribute, host)
char *name;
ulong tstamp;
uint attribute;
uint host;
{
return 0;
}
#endif /* end of UNIX section */
#ifndef SUBS_DEFINED /* vanilla version for other compilers */
/* specifically tested under SUN UNIX */
#ifdef MODERN
#include <string.h>
#else /* !MODERN */
extern char *strcpy();
extern voidp *malloc();
#endif /* ?MODERN */
FILE *
file_open(name, mode)
char *name;
char *mode;
{
return fopen(name, mode);
}
int
file_read(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fread(buf, (int) size, (int) nitems, stream);
}
int
file_seek(stream, offset, mode)
FILE *stream;
long offset;
int mode;
{
return fseek(stream, offset, mode);
}
long
file_tell(stream)
FILE *stream;
{
return ftell(stream);
}
int
file_write(buf, size, nitems, stream)
char *buf;
int size;
int nitems;
FILE *stream;
{
return fwrite(buf, (int) size, (int) nitems, stream);
}
voidp *
xmalloc(size)
int size;
{
return (voidp *)malloc((uint) size);
}
void
case_path(name)
char *name;
{
}
void
default_case_path(name)
char *name;
{
}
int
file_exists(name)
char *name;
{
FILE *fd;
if ((fd = fopen(name, "rb")) == NULL)
return 0;
fclose(fd);
return 1;
}
void
get_mode_str(str, mode)
char *str;
uint mode;
{
strcpy(str, "---W");
if (mode & FA_ARCH)
str[0] = 'A';
if (mode & FA_SYSTEM)
str[1] = 'S';
if (mode & FA_HIDDEN)
str[2] = 'H';
if (mode & FA_RDONLY)
str[3] = 'R';
}
int
set_ftime_mode(name, tstamp, attribute, host)
char *name;
ulong tstamp;
uint attribute;
uint host;
{
return 0;
}
#endif /* end of vanilla section */
/* end ENVIRON.C */