| 8 |
|
* getpath.c - function to search for file in a list of directories |
| 9 |
|
*/ |
| 10 |
|
|
| 11 |
+ |
#include "standard.h" |
| 12 |
+ |
|
| 13 |
|
#include "paths.h" |
| 14 |
|
|
| 15 |
< |
#define NULL 0 |
| 14 |
< |
|
| 15 |
< |
#ifndef NIX |
| 15 |
> |
#ifndef NIX |
| 16 |
|
#include <pwd.h> |
| 17 |
|
extern struct passwd *getpwnam(); |
| 18 |
|
#endif |
| 19 |
|
|
| 20 |
– |
extern char *strcpy(), *strcat(), *getenv(); |
| 20 |
|
|
| 22 |
– |
|
| 21 |
|
char * |
| 22 |
|
getpath(fname, searchpath, mode) /* expand fname, return full path */ |
| 23 |
|
register char *fname; |
| 24 |
|
register char *searchpath; |
| 25 |
|
int mode; |
| 26 |
|
{ |
| 27 |
< |
#ifndef NIX |
| 27 |
> |
#ifndef NIX |
| 28 |
|
struct passwd *pwent; |
| 29 |
|
#endif |
| 30 |
|
static char pname[MAXPATH]; |
| 33 |
|
if (fname == NULL) |
| 34 |
|
return(NULL); |
| 35 |
|
|
| 36 |
+ |
pname[0] = '\0'; /* check for full specification */ |
| 37 |
|
switch (*fname) { |
| 38 |
|
CASEDIRSEP: /* relative to root */ |
| 39 |
|
case '.': /* relative to cwd */ |
| 40 |
|
strcpy(pname, fname); |
| 41 |
< |
return(pname); |
| 41 |
> |
break; |
| 42 |
|
#ifndef NIX |
| 43 |
|
case '~': /* relative to home directory */ |
| 44 |
|
fname++; |
| 47 |
|
return(NULL); |
| 48 |
|
strcpy(pname, cp); |
| 49 |
|
strcat(pname, fname); |
| 50 |
< |
return(pname); |
| 50 |
> |
break; |
| 51 |
|
} |
| 52 |
|
cp = pname; /* user */ |
| 53 |
|
do |
| 58 |
|
return(NULL); |
| 59 |
|
strcpy(pname, pwent->pw_dir); |
| 60 |
|
strcat(pname, fname); |
| 61 |
< |
return(pname); |
| 61 |
> |
break; |
| 62 |
|
#endif |
| 63 |
|
} |
| 64 |
+ |
if (pname[0]) /* got it, check access if search requested */ |
| 65 |
+ |
return(searchpath==NULL||access(pname,mode)==0 ? pname : NULL); |
| 66 |
|
|
| 67 |
|
if (searchpath == NULL) { /* don't search */ |
| 68 |
|
strcpy(pname, fname); |
