src/common/gethomedir.c

#ifndef lint
static const char RCSid[] = "$Id: gethomedir.c,v 1.3 2019/07/21 16:48:34 greg Exp $";
#endif
/*
 *  gethomedir.c - search for a users home directory
 *
 */

#include  "copyright.h"

#include <stdlib.h>

#include "rtio.h"

#if defined(_WIN32) || defined(_WIN64)

char *
gethomedir(char *uname, char *path, int plen)
{
        char *cd, *cp;

        if (uname == NULL || *uname == '\0') {  /* ours */
                /* pretend we're on unix first (eg. for Cygwin) */
                if ((cp = getenv("HOME")) != NULL) {
                        strlcpy(path, cp, plen);
                        return path;
                }
                /* now let's see what Windows thinks */
                if ((cd = getenv("HOMEDRIVE")) != NULL
                                && (cp = getenv("HOMEPATH")) != NULL) {
                        strlcpy(path, cd, plen);
                        strlcat(path, cp, plen);
                        return path;
                }
                return NULL;
        }
        /* No idea how to find the home directory of another user */
        return NULL;
}
        
#else /* _WIN32 || _WIN64 */


#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>

char *
gethomedir(char *uname, char *path, int plen)
{
        struct passwd *pwent;
        uid_t uid;
        char *cp;

        if (uname == NULL || *uname == '\0') {  /* ours */
                if ((cp = getenv("HOME")) != NULL) {
                        strlcpy(path, cp, plen);
                        return path;
                }
                uid = getuid();
                if ((pwent = getpwuid(uid)) == NULL)
                        return(NULL); /* we don't exist ?!? */
                strlcpy(path, pwent->pw_dir, plen);
                return path;
        }
        /* someone else */
        if ((pwent = getpwnam(uname)) == NULL)
                return(NULL); /* no such user */

        strlcpy(path, pwent->pw_dir, plen);
        return path;
}

#endif /* _WIN32 || _WIN64 */

Revision:	1.4
Committed:	Sat Dec 28 18:05:14 2019 UTC (4 years, 4 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R4, rad5R3, HEAD
Changes since 1.3:	+1 -2 lines
Log Message:	Removed redundant include files
#	User	Rev	Content
1	schorsch	1.1	#ifndef lint
2	greg	1.4	static const char RCSid[] = "$Id: gethomedir.c,v 1.3 2019/07/21 16:48:34 greg Exp $";
3	schorsch	1.1	#endif
4			/*
5			* gethomedir.c - search for a users home directory
6			*
7			*/
8
9			#include "copyright.h"
10
11			#include <stdlib.h>
12
13			#include "rtio.h"
14
15	schorsch	1.2	#if defined(_WIN32) \|\| defined(_WIN64)
16	schorsch	1.1
17			char *
18			gethomedir(char uname, char path, int plen)
19			{
20			char cd, cp;
21
22			if (uname == NULL \|\| uname == '\0') { / ours */
23			/* pretend we're on unix first (eg. for Cygwin) */
24			if ((cp = getenv("HOME")) != NULL) {
25	greg	1.3	strlcpy(path, cp, plen);
26	schorsch	1.1	return path;
27			}
28			/* now let's see what Windows thinks */
29			if ((cd = getenv("HOMEDRIVE")) != NULL
30			&& (cp = getenv("HOMEPATH")) != NULL) {
31	greg	1.3	strlcpy(path, cd, plen);
32			strlcat(path, cp, plen);
33	schorsch	1.1	return path;
34			}
35			return NULL;
36			}
37			/* No idea how to find the home directory of another user */
38			return NULL;
39			}
40
41	schorsch	1.2	#else /* _WIN32 \|\| _WIN64 */
42	schorsch	1.1
43
44			#include <unistd.h>
45			#include <pwd.h>
46			#include <sys/types.h>
47
48			char *
49			gethomedir(char uname, char path, int plen)
50			{
51			struct passwd *pwent;
52			uid_t uid;
53			char *cp;
54
55			if (uname == NULL \|\| uname == '\0') { / ours */
56			if ((cp = getenv("HOME")) != NULL) {
57	greg	1.3	strlcpy(path, cp, plen);
58	schorsch	1.1	return path;
59			}
60			uid = getuid();
61			if ((pwent = getpwuid(uid)) == NULL)
62			return(NULL); /* we don't exist ?!? */
63	greg	1.3	strlcpy(path, pwent->pw_dir, plen);
64	schorsch	1.1	return path;
65			}
66			/* someone else */
67			if ((pwent = getpwnam(uname)) == NULL)
68			return(NULL); /* no such user */
69
70	greg	1.3	strlcpy(path, pwent->pw_dir, plen);
71	schorsch	1.1	return path;
72			}
73
74	schorsch	1.2	#endif /* _WIN32 \|\| _WIN64 */
75	schorsch	1.1