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schorsch |
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#ifndef lint
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static const char RCSid[] = "$Id$";
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#endif
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/*
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* gethomedir.c - search for a users home directory
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*
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*/
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#include "copyright.h"
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#include <stdlib.h>
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#include <string.h>
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#include "rtio.h"
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#ifdef _WIN32
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char *
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gethomedir(char *uname, char *path, int plen)
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{
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char *cd, *cp;
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if (uname == NULL || *uname == '\0') { /* ours */
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/* pretend we're on unix first (eg. for Cygwin) */
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if ((cp = getenv("HOME")) != NULL) {
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strncpy(path, cp, plen);
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path[plen-1] = '\0';
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return path;
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}
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/* now let's see what Windows thinks */
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if ((cd = getenv("HOMEDRIVE")) != NULL
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&& (cp = getenv("HOMEPATH")) != NULL) {
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strncpy(path, cd, plen);
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strncat(path, cp, plen-2);
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path[plen-1] = '\0';
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return path;
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}
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return NULL;
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}
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/* No idea how to find the home directory of another user */
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return NULL;
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}
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#else /* _WIN32 */
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#include <unistd.h>
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#include <pwd.h>
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#include <sys/types.h>
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char *
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gethomedir(char *uname, char *path, int plen)
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{
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struct passwd *pwent;
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uid_t uid;
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char *cp;
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if (uname == NULL || *uname == '\0') { /* ours */
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if ((cp = getenv("HOME")) != NULL) {
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strncpy(path, cp, plen);
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path[plen-1] = '\0';
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return path;
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}
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uid = getuid();
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if ((pwent = getpwuid(uid)) == NULL)
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return(NULL); /* we don't exist ?!? */
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strncpy(path, pwent->pw_dir, plen);
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path[plen-1] = '\0';
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return path;
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}
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/* someone else */
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if ((pwent = getpwnam(uname)) == NULL)
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return(NULL); /* no such user */
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strncpy(path, pwent->pw_dir, plen);
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path[plen-1] = '\0';
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return path;
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}
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#endif /* _WIN32 */
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