| 10 |
|
|
| 11 |
|
#define NULL 0 |
| 12 |
|
|
| 13 |
+ |
#ifndef NIX |
| 14 |
|
#include <pwd.h> |
| 15 |
+ |
#endif |
| 16 |
|
|
| 17 |
+ |
#ifndef DIRSEP |
| 18 |
+ |
#define DIRSEP '/' |
| 19 |
+ |
#endif |
| 20 |
+ |
#ifndef PATHSEP |
| 21 |
+ |
#define PATHSEP ':' |
| 22 |
+ |
#endif |
| 23 |
+ |
|
| 24 |
|
extern char *strcpy(), *strcat(), *getenv(); |
| 25 |
|
extern struct passwd *getpwnam(); |
| 26 |
|
|
| 31 |
|
register char *searchpath; |
| 32 |
|
int mode; |
| 33 |
|
{ |
| 34 |
< |
static char pname[256]; |
| 34 |
> |
#ifndef NIX |
| 35 |
|
struct passwd *pwent; |
| 36 |
+ |
#endif |
| 37 |
+ |
static char pname[256]; |
| 38 |
|
register char *cp; |
| 39 |
|
|
| 40 |
|
if (fname == NULL) |
| 41 |
|
return(NULL); |
| 42 |
|
|
| 43 |
|
switch (*fname) { |
| 44 |
< |
case '/': /* relative to root */ |
| 44 |
> |
case DIRSEP: /* relative to root */ |
| 45 |
|
case '.': /* relative to cwd */ |
| 46 |
|
strcpy(pname, fname); |
| 47 |
|
return(pname); |
| 48 |
+ |
#ifndef NIX |
| 49 |
|
case '~': /* relative to home directory */ |
| 50 |
|
fname++; |
| 51 |
< |
if (*fname == '\0' || *fname == '/') { /* ours */ |
| 51 |
> |
if (*fname == '\0' || *fname == DIRSEP) { /* ours */ |
| 52 |
|
if ((cp = getenv("HOME")) == NULL) |
| 53 |
|
return(NULL); |
| 54 |
|
strcpy(pname, cp); |
| 58 |
|
cp = pname; /* user */ |
| 59 |
|
do |
| 60 |
|
*cp++ = *fname++; |
| 61 |
< |
while (*fname && *fname != '/'); |
| 61 |
> |
while (*fname && *fname != DIRSEP); |
| 62 |
|
*cp = '\0'; |
| 63 |
|
if ((pwent = getpwnam(pname)) == NULL) |
| 64 |
|
return(NULL); |
| 65 |
|
strcpy(pname, pwent->pw_dir); |
| 66 |
|
strcat(pname, fname); |
| 67 |
|
return(pname); |
| 68 |
+ |
#endif |
| 69 |
|
} |
| 70 |
|
|
| 71 |
|
if (searchpath == NULL) { /* don't search */ |
| 75 |
|
/* check search path */ |
| 76 |
|
do { |
| 77 |
|
cp = pname; |
| 78 |
< |
while (*searchpath && (*cp = *searchpath++) != ':') |
| 79 |
< |
if (*cp == '\\') { /* escape */ |
| 80 |
< |
if (*searchpath) |
| 81 |
< |
*cp++ = *searchpath++; |
| 69 |
< |
} else |
| 70 |
< |
cp++; |
| 71 |
< |
if (cp > pname && cp[-1] != '/') |
| 72 |
< |
*cp++ = '/'; |
| 78 |
> |
while (*searchpath && (*cp = *searchpath++) != PATHSEP) |
| 79 |
> |
cp++; |
| 80 |
> |
if (cp > pname && cp[-1] != DIRSEP) |
| 81 |
> |
*cp++ = DIRSEP; |
| 82 |
|
strcpy(cp, fname); |
| 83 |
|
if (access(pname, mode) == 0) /* file accessable? */ |
| 84 |
|
return(pname); |