| 1 |
< |
/* Copyright (c) 1990 Regents of the University of California */ |
| 1 |
> |
/* Copyright (c) 1992 Regents of the University of California */ |
| 2 |
|
|
| 3 |
|
#ifndef lint |
| 4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
| 10 |
|
|
| 11 |
|
#include <stdio.h> |
| 12 |
|
|
| 13 |
< |
#ifndef DEFPATH |
| 14 |
< |
#define DEFPATH ":/usr/local/lib/ray" |
| 15 |
< |
#endif |
| 16 |
< |
#ifndef ULIBVAR |
| 17 |
< |
#define ULIBVAR "RAYPATH" |
| 18 |
< |
#endif |
| 13 |
> |
#include "paths.h" |
| 14 |
|
|
| 15 |
+ |
char *libpath = NULL; /* library search path */ |
| 16 |
|
|
| 17 |
+ |
|
| 18 |
|
FILE * |
| 19 |
|
fropen(fname) /* find file and open for reading */ |
| 20 |
|
register char *fname; |
| 21 |
|
{ |
| 22 |
|
extern char *strcpy(), *getenv(); |
| 26 |
– |
static char *searchpath; |
| 23 |
|
FILE *fp; |
| 24 |
< |
char pname[256]; |
| 24 |
> |
char pname[MAXPATH]; |
| 25 |
|
register char *sp, *cp; |
| 26 |
|
|
| 27 |
|
if (fname == NULL) |
| 28 |
|
return(NULL); |
| 29 |
|
|
| 30 |
< |
if (fname[0] == '/' || fname[0] == '.') /* absolute path */ |
| 30 |
> |
if (ISDIRSEP(fname[0]) || fname[0] == '.') /* absolute path */ |
| 31 |
|
return(fopen(fname, "r")); |
| 32 |
|
|
| 33 |
< |
if (searchpath == NULL) { /* get search path */ |
| 34 |
< |
searchpath = getenv(ULIBVAR); |
| 35 |
< |
if (searchpath == NULL) |
| 36 |
< |
searchpath = DEFPATH; |
| 33 |
> |
if (libpath == NULL) { /* get search path */ |
| 34 |
> |
libpath = getenv(ULIBVAR); |
| 35 |
> |
if (libpath == NULL) |
| 36 |
> |
libpath = DEFPATH; |
| 37 |
|
} |
| 38 |
|
/* check search path */ |
| 39 |
< |
sp = searchpath; |
| 39 |
> |
sp = libpath; |
| 40 |
|
do { |
| 41 |
|
cp = pname; |
| 42 |
< |
while (*sp && (*cp = *sp++) != ':') |
| 42 |
> |
while (*sp && (*cp = *sp++) != PATHSEP) |
| 43 |
|
cp++; |
| 44 |
< |
if (cp > pname && cp[-1] != '/') |
| 45 |
< |
*cp++ = '/'; |
| 44 |
> |
if (cp > pname && !ISDIRSEP(cp[-1])) |
| 45 |
> |
*cp++ = DIRSEP; |
| 46 |
|
strcpy(cp, fname); |
| 47 |
|
if ((fp = fopen(pname, "r")) != NULL) |
| 48 |
|
return(fp); /* got it! */ |
