Added classification macros for file types from struct dirent.
git-svn-id: svn://svn.cc65.org/cc65/trunk@5736 b7a2c559-68d2-44c3-8de9-860c34a00d81
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4 changed files with 142 additions and 28 deletions
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@ -7,21 +7,22 @@
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; Define bitmapped constants for the table entries
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.enum
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CBM_T_DEL ; Deleted file
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CBM_T_SEQ ; Sequential file
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CBM_T_PRG ; Program file
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CBM_T_USR ; User file
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CBM_T_REL ; Relative file
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CBM_T_CBM ; 1581 sub-partition
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CBM_T_DIR ; IDE64 and CMD sub-directory
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CBM_T_LNK ; IDE64 soft-link
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CBM_T_VRP ; Vorpal fast-loadable format
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CBM_T_OTHER ; File-type not recognized
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CBM_T_HEADER ; Disk header / title
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CBM_T_REG = $10 ; Bit set for regular files
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CBM_T_SEQ = $10 ; Sequential file
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CBM_T_PRG = $11 ; Program file
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CBM_T_USR = $12 ; User file
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CBM_T_REL = $13 ; Relative file
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CBM_T_DEL = $00 ; Deleted file
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CBM_T_CBM = $01 ; 1581 sub-partition
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CBM_T_DIR = $02 ; IDE64 and CMD sub-directory
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CBM_T_LNK = $03 ; IDE64 soft-link
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CBM_T_VRP = $04 ; Vorpal fast-loadable format
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CBM_T_OTHER = $05 ; File-type not recognized
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CBM_T_HEADER = $06 ; Disk header / title
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.endenum
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; The following function maps the start character for a file type to
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; The following function maps the start character for a file type to
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; one of the file types above. Note: 'd' will always mapped to CBM_T_DEL.
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; The calling function has to look at the following character to determine
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; if the file type is actually CBM_T_DIR.
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111
doc/funcref.sgml
111
doc/funcref.sgml
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@ -279,7 +279,11 @@ Low-level disk I/O API.
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<sect1><tt/dirent.h/<label id="dirent.h"><p>
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<itemize>
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<itemize>
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<item><ref id="_DE_ISDIR" name="_DE_ISDIR">
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<item><ref id="_DE_ISLBL" name="_DE_ISLBL">
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<item><ref id="_DE_ISLNK" name="_DE_ISLNK">
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<item><ref id="_DE_ISREG" name="_DE_ISREG">
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<item><ref id="closedir" name="closedir">
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<item><ref id="opendir" name="opendir">
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<item><ref id="readdir" name="readdir">
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@ -714,6 +718,105 @@ communication.
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<sect>Alphabetical function reference<p>
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<sect1>_DE_ISDIR<label id="_DE_ISDIR"><p>
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<quote>
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<descrip>
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<tag/Function/Determine if a directory entry specifies a directory.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/int _DE_ISDIR(unsigned char type);/
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<tag/Description/The function is called with the type of a directory entry
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taken from a <tt/struct dirent/ and returns true if the entry designates
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a directory.
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<tag/Limits/
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<itemize>
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<item>The function is actually a macro.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="_DE_ISLBL" name="_DE_ISLBL">,
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<ref id="_DE_ISLNK" name="_DE_ISLNK">,
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<ref id="_DE_ISREG" name="_DE_ISREG">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>_DE_ISLBL<label id="_DE_ISLBL"><p>
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<quote>
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<descrip>
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<tag/Function/Determine if a directory entry specifies a disk label.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/int _DE_ISLBL(unsigned char type);/
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<tag/Description/The function is called with the type of a directory entry
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taken from a <tt/struct dirent/ and returns true if the entry designates
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a disk label.
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<tag/Limits/
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<itemize>
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<item>The function is actually a macro.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="_DE_ISDIR" name="_DE_ISDIR">,
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<ref id="_DE_ISLNK" name="_DE_ISLNK">,
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<ref id="_DE_ISREG" name="_DE_ISREG">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>_DE_ISLNK<label id="_DE_ISLNK"><p>
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<quote>
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<descrip>
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<tag/Function/Determine if a directory entry specifies a link.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/int _DE_ISLNK(unsigned char type);/
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<tag/Description/The function is called with the type of a directory entry
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taken from a <tt/struct dirent/ and returns true if the entry designates
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a link.
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<tag/Limits/
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<itemize>
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<item>The function is actually a macro.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="_DE_ISDIR" name="_DE_ISDIR">,
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<ref id="_DE_ISLBL" name="_DE_ISLBL">,
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<ref id="_DE_ISREG" name="_DE_ISREG">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>_DE_ISREG<label id="_DE_ISREG"><p>
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<quote>
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<descrip>
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<tag/Function/Determine if a directory entry specifies a regular file.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/int _DE_ISREG(unsigned char type);/
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<tag/Description/The function is called with the type of a directory entry
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taken from a <tt/struct dirent/ and returns true if the entry designates
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a regular file.
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<tag/Limits/
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<itemize>
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<item>The function is actually a macro.
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<item>A "regular file" means anything with data in it. This might still mean
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that special processing is needed, when accessing the file. Relative files of
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the CBM systems are classified as being "regular" files, for example.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="_DE_ISDIR" name="_DE_ISDIR">,
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<ref id="_DE_ISLBL" name="_DE_ISLBL">,
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<ref id="_DE_ISLNK" name="_DE_ISLNK">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>_heapadd<label id="_heapadd"><p>
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<quote>
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@ -1668,7 +1771,7 @@ be used in presence of a prototype.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/int __fastcall__ closedir (DIR* dir);/
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<tag/Description/The function closes the given directory descriptor. It returns
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zero on success and -1 on error. If an error occurs, the cause can be determined
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zero on success and -1 on error. If an error occurs, the cause can be determined
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by reading the <tt/errno/ variable.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may only
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@ -4217,9 +4320,9 @@ had been used with an argument of 1.
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<tag/Header/<tt/<ref id="dirent.h" name="dirent.h">/
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<tag/Declaration/<tt/struct dirent* __fastcall__ readdir (DIR* dir);/
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<tag/Description/<tt/readdir/ reads the next directory entry from the directory
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stream pointed to by <tt/dir/. It stores the data in a <tt/dirent/ structure
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stream pointed to by <tt/dir/. It stores the data in a <tt/dirent/ structure
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and returns a pointer to it. If the end of directory is reached, or an error
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occurs, NULL is returned. In case of errors, an error code is stored into
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occurs, NULL is returned. In case of errors, an error code is stored into
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<tt/errno/.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may only
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@ -53,18 +53,20 @@
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/* CBM FILE TYPES. The definitions are used within standard headers, so we
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* be careful with identifiers in the user name space.
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* "Regular" files have a special bit set so it's easier to pick them out.
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*/
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#define _CBM_T_DEL 0
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#define _CBM_T_SEQ 1
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#define _CBM_T_PRG 2
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#define _CBM_T_USR 3
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#define _CBM_T_REL 4
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#define _CBM_T_CBM 5 /* 1581 sub-partition */
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#define _CBM_T_DIR 6 /* IDE64 and CMD sub-directory */
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#define _CBM_T_LNK 7 /* IDE64 soft-link */
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#define _CBM_T_VRP 8 /* Vorpal fast-loadable format */
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#define _CBM_T_OTHER 9 /* File-type not recognized */
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#define _CBM_T_HEADER 10 /* Disk header / title */
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#define _CBM_T_REG 0x10U /* Bit set for regular files */
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#define _CBM_T_SEQ 0x10U
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#define _CBM_T_PRG 0x11U
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#define _CBM_T_USR 0x12U
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#define _CBM_T_REL 0x13U
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#define _CBM_T_DEL 0x00U
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#define _CBM_T_CBM 0x01U /* 1581 sub-partition */
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#define _CBM_T_DIR 0x02U /* IDE64 and CMD sub-directory */
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#define _CBM_T_LNK 0x03U /* IDE64 soft-link */
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#define _CBM_T_VRP 0x04U /* Vorpal fast-loadable format */
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#define _CBM_T_OTHER 0x05U /* File-type not recognized */
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#define _CBM_T_HEADER 0x06U /* Disk header / title */
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#if __CC65_STD__ == __CC65_STD_CC65__
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/* Allow for names without leading underscores */
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@ -85,12 +85,20 @@ struct dirent {
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char d_name[16+1];
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unsigned int d_off;
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unsigned int d_blocks;
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unsigned char d_type; /* See CBM_T_xxx defines in cbm.h */
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unsigned char d_type; /* See _CBM_T_xxx defines */
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/* bsd extensions */
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unsigned char d_namlen;
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};
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/* File type specification macros. We need definitions of CBM file types. */
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#include <cbm_filetype.h>
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#define _DE_ISREG(t) (((t) & _CBM_T_REG) != 0)
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#define _DE_ISDIR(t) ((t) == _CBM_T_DIR)
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#define _DE_ISLBL(t) ((t) == _CBM_T_HDR)
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#define _DE_ISLNK(t) ((t) == _CBM_T_LNK)
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#elif defined(__LYNX__)
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struct dirent {
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