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path: root/noncore/unsupported/qpdf/goo/gfile.h
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1//========================================================================
2//
3// gfile.h
4//
5// Miscellaneous file and directory name manipulation.
6//
7// Copyright 1996 Derek B. Noonburg
8//
9//========================================================================
10
11#ifndef GFILE_H
12#define GFILE_H
13
14#include <stdio.h>
15#include <stdlib.h>
16#include <stddef.h>
17#if defined(WIN32)
18# include <sys/stat.h>
19# ifdef FPTEX
20# include <win32lib.h>
21# else
22# include <windows.h>
23# endif
24#elif defined(ACORN)
25#elif defined(MACOS)
26# include <ctime.h>
27#else
28# include <unistd.h>
29# include <sys/types.h>
30# ifdef VMS
31# include "vms_dirent.h"
32# elif HAVE_DIRENT_H
33# include <dirent.h>
34# define NAMLEN(d) strlen((d)->d_name)
35# else
36# define dirent direct
37# define NAMLEN(d) (d)->d_namlen
38# if HAVE_SYS_NDIR_H
39# include <sys/ndir.h>
40# endif
41# if HAVE_SYS_DIR_H
42# include <sys/dir.h>
43# endif
44# if HAVE_NDIR_H
45# include <ndir.h>
46# endif
47# endif
48#endif
49#include "gtypes.h"
50
51class GString;
52
53//------------------------------------------------------------------------
54
55// Get home directory path.
56extern GString *getHomeDir();
57
58// Get current directory.
59extern GString *getCurrentDir();
60
61// Append a file name to a path string. <path> may be an empty
62// string, denoting the current directory). Returns <path>.
63extern GString *appendToPath(GString *path, char *fileName);
64
65// Grab the path from the front of the file name. If there is no
66// directory component in <fileName>, returns an empty string.
67extern GString *grabPath(char *fileName);
68
69// Is this an absolute path or file name?
70extern GBool isAbsolutePath(char *path);
71
72// Make this path absolute by prepending current directory (if path is
73// relative) or prepending user's directory (if path starts with '~').
74extern GString *makePathAbsolute(GString *path);
75
76// Get the modification time for <fileName>. Returns 0 if there is an
77// error.
78extern time_t getModTime(char *fileName);
79
80// Create a temporary file and open it for writing. If <ext> is not
81// NULL, it will be used as the file name extension. Returns both the
82// name and the file pointer. For security reasons, all writing
83// should be done to the returned file pointer; the file may be
84// reopened later for reading, but not for writing. The <mode> string
85// should be "w" or "wb". Returns true on success.
86extern GBool openTempFile(GString **name, FILE **f, char *mode, char *ext);
87
88// Just like fgets, but handles Unix, Mac, and/or DOS end-of-line
89// conventions.
90extern char *getLine(char *buf, int size, FILE *f);
91
92//------------------------------------------------------------------------
93// GDir and GDirEntry
94//------------------------------------------------------------------------
95
96class GDirEntry {
97public:
98
99 GDirEntry(char *dirPath, char *nameA, GBool doStat);
100 ~GDirEntry();
101 GString *getName() { return name; }
102 GBool isDir() { return dir; }
103
104private:
105
106 GString *name; // dir/file name
107 GBool dir; // is it a directory?
108};
109
110class GDir {
111public:
112
113 GDir(char *name, GBool doStatA = gTrue);
114 ~GDir();
115 GDirEntry *getNextEntry();
116 void rewind();
117
118private:
119
120 GString *path; // directory path
121 GBool doStat; // call stat() for each entry?
122#if defined(WIN32)
123 WIN32_FIND_DATA ffd;
124 HANDLE hnd;
125#elif defined(ACORN)
126#elif defined(MACOS)
127#else
128 DIR *dir; // the DIR structure from opendir()
129#ifdef VMS
130 GBool needParent; // need to return an entry for [-]
131#endif
132#endif
133};
134
135#endif