src/common/paths.h

/* RCSid $Id: paths.h,v 2.15 2003/06/27 06:53:21 greg Exp $ */
/*
 * Definitions for paths on different machines
 */
#ifndef _RAD_PATHS_H_
#define _RAD_PATHS_H_
#ifdef __cplusplus
extern "C" {
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef _WIN32
  #include <io.h>

  #define access _access
  #define PATH_MAX _MAX_PATH
  #define DIRSEP                '/'
  #define ISDIRSEP(c)   ((c)=='/' || (c)=='\\')
  #define ISABS(s)      ((s)!=NULL \
                  && (s[0])!='\0' \
          && (   ISDIRSEP(s[0]) \
              || (   (s[1])!='\0' \
                  && (isupper(s[0])||islower(s[0])) \
                  && (s[1])==':')))
  #define CASEDIRSEP    case '/': case '\\'
  #define PATHSEP               ';'
  #define CURDIR                '.'
  /*#define MAXPATH             512*/ /* obsoleted by posix PATH_MAX */
  #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  X_OK 01
    #define  W_OK 02
    #define  R_OK 04
  #endif
extern char  *fixargv0();

#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 DIRSEP              '/'
    #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
    #define PATHSEP             ';'
        #define CURDIR          '.'
    /*#define MAXPATH           128*/ /* obsoleted by posix PATH_MAX */
    #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) ((s)!=NULL && (ISDIRSEP(s[0])))
    #define PATHSEP             ':'
        #define CURDIR          '.'
    /*#define MAXPATH           256*/ /* obsoleted by posix PATH_MAX */
    #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
    #define TEMPLATE    "/usr/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


/* 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:	2.16
Committed:	Mon Jun 30 14:59:11 2003 UTC (20 years, 10 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.15:	+24 -23 lines
Log Message:	Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.
#	User	Rev	Content
1	schorsch	2.16	/* RCSid $Id: paths.h,v 2.15 2003/06/27 06:53:21 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			#ifdef __cplusplus
8			extern "C" {
9			#endif
10	greg	2.1
11	schorsch	2.16	#include <stdio.h>
12	schorsch	2.13	#include <stdlib.h>
13			#include <string.h>
14	schorsch	2.16
15	schorsch	2.13	#ifdef _WIN32
16	schorsch	2.14	#include <io.h>
17	greg	2.1
18	schorsch	2.14	#define access _access
19			#define PATH_MAX _MAX_PATH
20			#define DIRSEP '/'
21			#define ISDIRSEP(c) ((c)=='/' \|\| (c)=='\\')
22			#define ISABS(s) ((s)!=NULL \
23			&& (s[0])!='\0' \
24			&& ( ISDIRSEP(s[0]) \
25			\|\| ( (s[1])!='\0' \
26			&& (isupper(s[0])\|\|islower(s[0])) \
27			&& (s[1])==':')))
28			#define CASEDIRSEP case '/': case '\\'
29			#define PATHSEP ';'
30			#define CURDIR '.'
31	schorsch	2.16	/#define MAXPATH 512/ /* obsoleted by posix PATH_MAX */
32	schorsch	2.14	#define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
33			#define TEMPLATE "rtXXXXXX"
34			#define TEMPLEN 8
35			#define ULIBVAR "RAYPATH"
36			#ifndef DEFPATH
37			#define DEFPATH ";c:/ray/lib"
38			#endif
39			/* <io.h> only does half the work for access() */
40			#ifndef F_OK
41			#define F_OK 00
42			#define X_OK 01
43			#define W_OK 02
44			#define R_OK 04
45			#endif
46	greg	2.4	extern char *fixargv0();
47	greg	2.1
48	schorsch	2.16	#else /* everything but Windows */
49			#include <unistd.h>
50			#include <sys/param.h>
51
52			#define RMAX_PATH_MAX 4096 /* our own maximum */
53			#ifndef PATH_MAX
54			#define PATH_MAX 512
55			#elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
56			#undef PATH_MAX
57			#define PATH_MAX RMAX_PATH_MAX
58	schorsch	2.14	#endif
59
60			#ifdef AMIGA
61
62			#define DIRSEP '/'
63			#define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
64			#define PATHSEP ';'
65			#define CURDIR '.'
66	schorsch	2.16	/#define MAXPATH 128/ /* obsoleted by posix PATH_MAX */
67	schorsch	2.14	#define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
68			#define TEMPLATE "/tmp/rtXXXXXX"
69			#define TEMPLEN 13
70			#define ULIBVAR "RAYPATH"
71			#ifndef DEFPATH
72			#define DEFPATH ";/ray/lib"
73			#endif
74			#define fixargv0(a0) (a0)
75
76			#else
77
78	schorsch	2.16	/* posix */
79
80			/* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
81			#define NULL_DEVICE "/dev/null"
82	schorsch	2.14	#define DIRSEP '/'
83			#define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
84			#define PATHSEP ':'
85			#define CURDIR '.'
86	schorsch	2.16	/#define MAXPATH 256/ /* obsoleted by posix PATH_MAX */
87	schorsch	2.14	#define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
88			#define TEMPLATE "/usr/tmp/rtXXXXXX"
89			#define TEMPLEN 17
90			#define ULIBVAR "RAYPATH"
91			#ifndef DEFPATH
92			#define DEFPATH ":/usr/local/lib/ray"
93			#endif
94			#define fixargv0(a0) (a0)
95	greg	2.1
96	schorsch	2.14	#endif
97	greg	2.2	#endif
98
99			#ifndef ISDIRSEP
100	schorsch	2.14	#define ISDIRSEP(c) ((c)==DIRSEP)
101	greg	2.2	#endif
102			#ifndef CASEDIRSEP
103	schorsch	2.14	#define CASEDIRSEP case DIRSEP
104	greg	2.1	#endif
105
106	schorsch	2.13
107			/* Find a writeable directory for temporary files */
108			/* If s is NULL, we return a static string */
109			extern char temp_directory(char s, size_t len);
110
111			/* Compose a currently unique name within a temporary directory */
112			/* If s is NULL, we return a static string */
113			/* If templ is NULL, we take our default template */
114			/* WARNING: On Windows, there's a maximum of 27 unique names within
115			one process for the same template. */
116			extern char temp_filename(char s, size_t len, char *templ);
117
118			/* Same as above, but also open the file and return the descriptor */
119			/* This one is supposed to protect against race conditions on unix */
120			/* WARNING: On Windows, there's no protection against race conditions */
121	schorsch	2.16	extern int temp_fd(char s, size_t len, char templ);
122
123			/* Same as above, but return a file pointer instead of a descriptor */
124			extern FILE temp_fp(char s, size_t len, char *templ);
125	schorsch	2.13
126			/* Concatenate two strings, leaving exactly one DIRSEP in between */
127			extern char append_filepath(char s1, char *s2, size_t len);
128	schorsch	2.12
129
130			#ifdef __cplusplus
131			}
132			#endif
133			#endif /* _RAD_PATHS_H_ */
134