16 |
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#ifndef ULIBVAR |
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#define ULIBVAR "RAYPATH" |
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#endif |
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+ |
#ifndef DIRSEP |
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#define DIRSEP '/' |
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#endif |
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#ifndef PATHSEP |
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#define PATHSEP ':' |
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#endif |
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|
26 |
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char *libpath = NULL; /* library search path */ |
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|
28 |
+ |
|
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FILE * |
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fropen(fname) /* find file and open for reading */ |
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register char *fname; |
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{ |
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extern char *strcpy(), *getenv(); |
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static char *searchpath; |
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FILE *fp; |
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char pname[256]; |
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register char *sp, *cp; |
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if (fname == NULL) |
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return(NULL); |
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|
41 |
< |
if (fname[0] == '/' || fname[0] == '.') /* absolute path */ |
41 |
> |
if (fname[0] == DIRSEP || fname[0] == '.') /* absolute path */ |
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return(fopen(fname, "r")); |
43 |
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|
44 |
< |
if (searchpath == NULL) { /* get search path */ |
45 |
< |
searchpath = getenv(ULIBVAR); |
46 |
< |
if (searchpath == NULL) |
47 |
< |
searchpath = DEFPATH; |
44 |
> |
if (libpath == NULL) { /* get search path */ |
45 |
> |
libpath = getenv(ULIBVAR); |
46 |
> |
if (libpath == NULL) |
47 |
> |
libpath = DEFPATH; |
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} |
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/* check search path */ |
50 |
< |
sp = searchpath; |
50 |
> |
sp = libpath; |
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do { |
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cp = pname; |
53 |
< |
while (*sp && (*cp = *sp++) != ':') |
53 |
> |
while (*sp && (*cp = *sp++) != PATHSEP) |
54 |
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cp++; |
55 |
< |
if (cp > pname && cp[-1] != '/') |
56 |
< |
*cp++ = '/'; |
55 |
> |
if (cp > pname && cp[-1] != DIRSEP) |
56 |
> |
*cp++ = DIRSEP; |
57 |
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strcpy(cp, fname); |
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if ((fp = fopen(pname, "r")) != NULL) |
59 |
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return(fp); /* got it! */ |