src/common/paths.h

/* RCSid $Id: paths.h,v 2.23 2011/10/05 17:20:55 greg Exp $ */
/*
 * Definitions for paths on different machines
 */
#ifndef _RAD_PATHS_H_
#define _RAD_PATHS_H_

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#ifdef _WIN32
  #include <io.h>
  #include <direct.h> /* getcwd(), chdir(), _mkdir(), etc. */

  #define access _access
  #define mkdir(dirname,perms) _mkdir(dirname)
  #define PATH_MAX _MAX_PATH
  #define NULL_DEVICE   "NUL"
  #define DIRSEP                '/'
  #define ISDIRSEP(c)   (((c)=='/') | ((c)=='\\'))
  #define ISABS(s)      ( ISDIRSEP((s)[0]) \
                || ( isupper((s)[0]) | islower((s)[0]) \
                        && (s)[1]==':' && ISDIRSEP((s)[2]) ) )
  #define CASEDIRSEP    case '/': case '\\'
  #define PATHSEP               ';'
  #define CURDIR                '.'
  #define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
  #define TEMPLATE      "rtXXXXXX"
  #define TEMPLEN               8
  #define ULIBVAR               "RAYPATH"
  #ifndef DEFPATH
    #define DEFPATH             ";c:/ray/lib"
  #endif
  /* <io.h> only does half the work for access() */
  #ifndef F_OK
    #define  F_OK 00
    #define  W_OK 02
  #endif
  #ifndef R_OK
    #define X_OK 01
    #define R_OK 04
  #endif
  /* to make the permissions user specific we'd need to use CreateFile() */
  #ifndef S_IRUSR
    #define S_IRUSR _S_IREAD
    #define S_IWUSR _S_IWRITE
  #endif

  #ifdef __cplusplus
    extern "C" {
  #endif
  extern char  *fixargv0();
  #ifdef __cplusplus
    }
  #endif

#else /* everything but Windows */
  #include <unistd.h>
  #include <sys/param.h>

  #define RMAX_PATH_MAX 4096 /* our own maximum */
  #ifndef PATH_MAX
    #define PATH_MAX 512
  #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
    #undef PATH_MAX
    #define PATH_MAX RMAX_PATH_MAX
  #endif

  #ifdef AMIGA

        #define NULL_DEVICE     "NIL:"
    #define DIRSEP              '/'
    #define ISABS(s)            ISDIRSEP((s)[0])
    #define PATHSEP             ';'
        #define CURDIR          '.'
    #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
    #define TEMPLATE    "/tmp/rtXXXXXX"
    #define TEMPLEN             13
    #define ULIBVAR             "RAYPATH"
    #ifndef DEFPATH
      #define DEFPATH           ";/ray/lib"
    #endif
    #define      fixargv0(a0)   (a0)

  #else

    /* posix */

        /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
        #define NULL_DEVICE     "/dev/null"
    #define DIRSEP              '/'
    #define ISABS(s)            ISDIRSEP((s)[0])
    #define PATHSEP             ':'
        #define CURDIR          '.'
    #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
    #define TEMPLATE    "/tmp/rtXXXXXX"
    #define TEMPLEN             17
    #define ULIBVAR             "RAYPATH"
    #ifndef DEFPATH
      #define DEFPATH           ":/usr/local/lib/ray"
    #endif
    #define      fixargv0(a0)   (a0)

  #endif
#endif

#ifndef ISDIRSEP
  #define ISDIRSEP(c)   ((c)==DIRSEP)
#endif
#ifndef CASEDIRSEP
  #define CASEDIRSEP    case DIRSEP
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* Find a writeable directory for temporary files */
/* If s is NULL, we return a static string */
extern char *temp_directory(char *s, size_t len);

/* Compose a *currently* unique name within a temporary directory */
/* If s is NULL, we return a static string */
/* If templ is NULL, we take our default template */
/* WARNING: On Windows, there's a maximum of 27 unique names within
            one process for the same template. */
extern char *temp_filename(char *s, size_t len, char *templ);

/* Same as above, but also open the file and return the descriptor */
/* This one is supposed to protect against race conditions on unix */
/* WARNING: On Windows, there's no protection against race conditions */
extern int temp_fd(char *s, size_t len, char *templ);

/* Same as above, but return a file pointer instead of a descriptor */
extern FILE *temp_fp(char *s, size_t len, char *templ);

/* Concatenate two strings, leaving exactly one DIRSEP in between */
extern char *append_filepath(char *s1, char *s2, size_t len);


#ifdef __cplusplus
}
#endif
#endif /* _RAD_PATHS_H_ */

Revision:	2.24
Committed:	Fri Jun 29 23:09:06 2012 UTC (13 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R0, rad4R2P2, rad4R2P1, rad4R2
Changes since 2.23:	+7 -10 lines
Log Message:	Fixed check of absolute paths for frlibopen() under Windows
#	User	Rev	Content
1	greg	2.24	/* RCSid $Id: paths.h,v 2.23 2011/10/05 17:20:55 greg Exp $ */
2	greg	2.1	/*
3			* Definitions for paths on different machines
4	greg	2.9	*/
5	schorsch	2.12	#ifndef _RAD_PATHS_H_
6			#define _RAD_PATHS_H_
7	greg	2.1
8	schorsch	2.16	#include <stdio.h>
9	schorsch	2.13	#include <stdlib.h>
10			#include <string.h>
11	schorsch	2.17	#include <fcntl.h>
12			#include <sys/types.h>
13			#include <sys/stat.h>
14	schorsch	2.16
15	schorsch	2.13	#ifdef _WIN32
16	schorsch	2.14	#include <io.h>
17	schorsch	2.22	#include <direct.h> /* getcwd(), chdir(), _mkdir(), etc. */
18	greg	2.1
19	schorsch	2.14	#define access _access
20	schorsch	2.22	#define mkdir(dirname,perms) _mkdir(dirname)
21	schorsch	2.14	#define PATH_MAX _MAX_PATH
22	schorsch	2.20	#define NULL_DEVICE "NUL"
23	schorsch	2.14	#define DIRSEP '/'
24	greg	2.24	#define ISDIRSEP(c) (((c)=='/') \| ((c)=='\\'))
25			#define ISABS(s) ( ISDIRSEP((s)[0]) \
26			\|\| ( isupper((s)[0]) \| islower((s)[0]) \
27			&& (s)[1]==':' && ISDIRSEP((s)[2]) ) )
28	schorsch	2.14	#define CASEDIRSEP case '/': case '\\'
29			#define PATHSEP ';'
30			#define CURDIR '.'
31			#define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
32			#define TEMPLATE "rtXXXXXX"
33			#define TEMPLEN 8
34			#define ULIBVAR "RAYPATH"
35			#ifndef DEFPATH
36			#define DEFPATH ";c:/ray/lib"
37			#endif
38			/* <io.h> only does half the work for access() */
39			#ifndef F_OK
40			#define F_OK 00
41			#define W_OK 02
42	greg	2.23	#endif
43			#ifndef R_OK
44			#define X_OK 01
45			#define R_OK 04
46	schorsch	2.14	#endif
47	schorsch	2.17	/* to make the permissions user specific we'd need to use CreateFile() */
48			#ifndef S_IRUSR
49			#define S_IRUSR _S_IREAD
50			#define S_IWUSR _S_IWRITE
51			#endif
52	schorsch	2.19
53			#ifdef __cplusplus
54			extern "C" {
55			#endif
56			extern char *fixargv0();
57			#ifdef __cplusplus
58			}
59			#endif
60	greg	2.1
61	schorsch	2.16	#else /* everything but Windows */
62			#include <unistd.h>
63			#include <sys/param.h>
64
65			#define RMAX_PATH_MAX 4096 /* our own maximum */
66			#ifndef PATH_MAX
67			#define PATH_MAX 512
68			#elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
69			#undef PATH_MAX
70			#define PATH_MAX RMAX_PATH_MAX
71	schorsch	2.14	#endif
72
73			#ifdef AMIGA
74
75	schorsch	2.20	#define NULL_DEVICE "NIL:"
76	schorsch	2.14	#define DIRSEP '/'
77	greg	2.24	#define ISABS(s) ISDIRSEP((s)[0])
78	schorsch	2.14	#define PATHSEP ';'
79			#define CURDIR '.'
80			#define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
81			#define TEMPLATE "/tmp/rtXXXXXX"
82			#define TEMPLEN 13
83			#define ULIBVAR "RAYPATH"
84			#ifndef DEFPATH
85			#define DEFPATH ";/ray/lib"
86			#endif
87			#define fixargv0(a0) (a0)
88
89			#else
90
91	schorsch	2.16	/* posix */
92
93			/* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
94			#define NULL_DEVICE "/dev/null"
95	schorsch	2.14	#define DIRSEP '/'
96	greg	2.24	#define ISABS(s) ISDIRSEP((s)[0])
97	schorsch	2.14	#define PATHSEP ':'
98			#define CURDIR '.'
99			#define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
100	greg	2.21	#define TEMPLATE "/tmp/rtXXXXXX"
101	schorsch	2.14	#define TEMPLEN 17
102			#define ULIBVAR "RAYPATH"
103			#ifndef DEFPATH
104			#define DEFPATH ":/usr/local/lib/ray"
105			#endif
106			#define fixargv0(a0) (a0)
107	greg	2.1
108	schorsch	2.14	#endif
109	greg	2.2	#endif
110
111			#ifndef ISDIRSEP
112	schorsch	2.14	#define ISDIRSEP(c) ((c)==DIRSEP)
113	greg	2.2	#endif
114			#ifndef CASEDIRSEP
115	schorsch	2.14	#define CASEDIRSEP case DIRSEP
116	greg	2.1	#endif
117
118	schorsch	2.19	#ifdef __cplusplus
119			extern "C" {
120			#endif
121	schorsch	2.13
122			/* Find a writeable directory for temporary files */
123			/* If s is NULL, we return a static string */
124			extern char temp_directory(char s, size_t len);
125
126			/* Compose a currently unique name within a temporary directory */
127			/* If s is NULL, we return a static string */
128			/* If templ is NULL, we take our default template */
129			/* WARNING: On Windows, there's a maximum of 27 unique names within
130			one process for the same template. */
131			extern char temp_filename(char s, size_t len, char *templ);
132
133			/* Same as above, but also open the file and return the descriptor */
134			/* This one is supposed to protect against race conditions on unix */
135			/* WARNING: On Windows, there's no protection against race conditions */
136	schorsch	2.16	extern int temp_fd(char s, size_t len, char templ);
137
138			/* Same as above, but return a file pointer instead of a descriptor */
139			extern FILE temp_fp(char s, size_t len, char *templ);
140	schorsch	2.13
141			/* Concatenate two strings, leaving exactly one DIRSEP in between */
142			extern char append_filepath(char s1, char *s2, size_t len);
143	schorsch	2.12
144
145			#ifdef __cplusplus
146			}
147			#endif
148			#endif /* _RAD_PATHS_H_ */
149