| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: gethomedir.c,v 1.2 2016/03/06 01:13:17 schorsch Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* gethomedir.c - search for a users home directory |
| 6 |
* |
| 7 |
*/ |
| 8 |
|
| 9 |
#include "copyright.h" |
| 10 |
|
| 11 |
#include <stdlib.h> |
| 12 |
#include <string.h> |
| 13 |
|
| 14 |
#include "rtio.h" |
| 15 |
|
| 16 |
#if defined(_WIN32) || defined(_WIN64) |
| 17 |
|
| 18 |
char * |
| 19 |
gethomedir(char *uname, char *path, int plen) |
| 20 |
{ |
| 21 |
char *cd, *cp; |
| 22 |
|
| 23 |
if (uname == NULL || *uname == '\0') { /* ours */ |
| 24 |
/* pretend we're on unix first (eg. for Cygwin) */ |
| 25 |
if ((cp = getenv("HOME")) != NULL) { |
| 26 |
strlcpy(path, cp, plen); |
| 27 |
return path; |
| 28 |
} |
| 29 |
/* now let's see what Windows thinks */ |
| 30 |
if ((cd = getenv("HOMEDRIVE")) != NULL |
| 31 |
&& (cp = getenv("HOMEPATH")) != NULL) { |
| 32 |
strlcpy(path, cd, plen); |
| 33 |
strlcat(path, cp, plen); |
| 34 |
return path; |
| 35 |
} |
| 36 |
return NULL; |
| 37 |
} |
| 38 |
/* No idea how to find the home directory of another user */ |
| 39 |
return NULL; |
| 40 |
} |
| 41 |
|
| 42 |
#else /* _WIN32 || _WIN64 */ |
| 43 |
|
| 44 |
|
| 45 |
#include <unistd.h> |
| 46 |
#include <pwd.h> |
| 47 |
#include <sys/types.h> |
| 48 |
|
| 49 |
char * |
| 50 |
gethomedir(char *uname, char *path, int plen) |
| 51 |
{ |
| 52 |
struct passwd *pwent; |
| 53 |
uid_t uid; |
| 54 |
char *cp; |
| 55 |
|
| 56 |
if (uname == NULL || *uname == '\0') { /* ours */ |
| 57 |
if ((cp = getenv("HOME")) != NULL) { |
| 58 |
strlcpy(path, cp, plen); |
| 59 |
return path; |
| 60 |
} |
| 61 |
uid = getuid(); |
| 62 |
if ((pwent = getpwuid(uid)) == NULL) |
| 63 |
return(NULL); /* we don't exist ?!? */ |
| 64 |
strlcpy(path, pwent->pw_dir, plen); |
| 65 |
return path; |
| 66 |
} |
| 67 |
/* someone else */ |
| 68 |
if ((pwent = getpwnam(uname)) == NULL) |
| 69 |
return(NULL); /* no such user */ |
| 70 |
|
| 71 |
strlcpy(path, pwent->pw_dir, plen); |
| 72 |
return path; |
| 73 |
} |
| 74 |
|
| 75 |
#endif /* _WIN32 || _WIN64 */ |
| 76 |
|
