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DEFINITIONS
This source file includes following definitions.
- closedir
- opendir
- readdir
- VMSIsMagickConflict
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% V V M M SSSSS %
% V V MM MM SS %
% V V M M M SSS %
% V V M M SS %
% V M M SSSSS %
% %
% %
% MagickCore VMS Utility Methods %
% %
% Software Design %
% John Cristy %
% October 1994 %
% %
% %
% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% http://www.imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The directory methods are strongly based on similar methods written
% by Rich Salz.
%
*/
#if defined(vms)
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/string_.h"
#include "magick/memory_.h"
#include "magick/vms.h"
#if !defined(_AXP_) && (!defined(__VMS_VER) || (__VMS_VER < 70000000))
/*
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% c l o s e d i r %
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%
% closedir() closes the named directory stream and frees the DIR structure.
%
% The format of the closedir method is:
%
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
%
*/
void closedir(DIR *directory)
{
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(directory != (DIR *) NULL);
directory->pattern=DestroyString(directory->pattern);
directory=DestroyString(directory);
}
/*
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% o p e n d i r %
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% opendir() opens the directory named by filename and associates a directory
% stream with it.
%
% The format of the opendir method is:
%
% opendir(entry)
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
%
*/
DIR *opendir(char *name)
{
DIR
*directory;
/*
Allocate memory for handle and the pattern.
*/
directory=(DIR *) AcquireMagickMemory(sizeof(DIR));
if (directory == (DIR *) NULL)
{
errno=ENOMEM;
return((DIR *) NULL);
}
if (strcmp(".",name) == 0)
name="";
directory->pattern=(char *) AcquireQuantumMemory(strlen(name)+sizeof("*.*")+
1UL,sizeof(*directory->pattern));
if (directory->pattern == (char *) NULL)
{
directory=DestroyString(directory);
errno=ENOMEM;
return(NULL);
}
/*
Initialize descriptor.
*/
(void) FormatMagickString(directory->pattern,MaxTextExtent,"%s*.*",name);
directory->context=0;
directory->pat.dsc$a_pointer=directory->pattern;
directory->pat.dsc$w_length=strlen(directory->pattern);
directory->pat.dsc$b_dtype=DSC$K_DTYPE_T;
directory->pat.dsc$b_class=DSC$K_CLASS_S;
return(directory);
}
/*
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% r e a d d i r %
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% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% readdir() returns a pointer to a structure representing the directory entry
% at the current position in the directory stream to which entry refers.
%
% The format of the readdir
%
% readdir(entry)
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
%
*/
struct dirent *readdir(DIR *directory)
{
char
buffer[sizeof(directory->entry.d_name)];
int
status;
register char
*p;
register int
i;
struct dsc$descriptor_s
result;
/*
Initialize the result descriptor.
*/
result.dsc$a_pointer=buffer;
result.dsc$w_length=sizeof(buffer)-2;
result.dsc$b_dtype=DSC$K_DTYPE_T;
result.dsc$b_class=DSC$K_CLASS_S;
status=lib$find_file(&directory->pat,&result,&directory->context);
if ((status == RMS$_NMF) || (directory->context == 0L))
return((struct dirent *) NULL);
/*
Lowercase all filenames.
*/
buffer[sizeof(buffer)-1]='\0';
for (p=buffer; *p; p++)
if (isupper((unsigned char) *p))
*p=tolower(*p);
/*
Skip any directory component and just copy the name.
*/
p=buffer;
while (isspace((unsigned char) *p) == 0)
p++;
*p='\0';
p=strchr(buffer,']');
if (p)
(void) CopyMagickString(directory->entry.d_name,p+1,MaxTextExtent);
else
(void) CopyMagickString(directory->entry.d_name,buffer,MaxTextExtent);
directory->entry.d_namlen=strlen(directory->entry.d_name);
return(&directory->entry);
}
#endif /* !defined(_AXP_) && (!defined(__VMS_VER) || (__VMS_VER < 70000000)) */
/*
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% I s M a g i c k C o n f l i c t %
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%
% VMSIsMagickConflict() returns true if the image format conflicts with a
% logical drive (.e.g. SYS$SCRATCH:).
%
% Contributed by Forrest Cahoon (forrest@wiredaemons.com)
%
% The format of the VMSIsMagickConflict method is:
%
% MagickBooleanType VMSIsMagickConflict(const char *magick)
%
% A description of each parameter follows:
%
% o magick: Specifies the image format.
%
%
*/
MagickExport MagickBooleanType VMSIsMagickConflict(const char *magick)
{
ile3
item_list[2];
int
device_class,
status;
struct dsc$descriptor_s
device;
assert(magick != (char *) NULL);
device.dsc$w_length=strlen(magick);
device.dsc$a_pointer=(char *) magick;
device.dsc$b_class=DSC$K_CLASS_S;
device.dsc$b_dtype=DSC$K_DTYPE_T;
item_list[0].ile3$w_length=sizeof(device_class);
item_list[0].ile3$w_code=DVI$_DEVCLASS;
item_list[0].ile3$ps_bufaddr=&device_class;
item_list[0].ile3$ps_retlen_addr=NULL;
(void) ResetMagickMemory(&item_list[1],0,sizeof(item_list[1]));
status=sys$getdviw(0,0,&device,&item_list,0,0,0,0);
if ((status == SS$_NONLOCAL) ||
((status & 0x01) && (device_class & (DC$_DISK | DC$_TAPE))))
return(MagickTrue);
return(MagickFalse);
}
#endif /* defined(vms) */