- char *p;
- const char *f;
- char x;
- struct stat s;
- char l[MAXBUFSIZE];
-
- if(*file != '/')
- {
- syslog(LOG_ERR, _("`%s' is not an absolute path"), file);
- return 0;
- }
-
- p = strrchr(file, '/');
-
- if(p == file) /* It's in the root */
- p++;
-
- x = *p;
- *p = '\0';
-
- f = file;
-check1:
- if(lstat(f, &s) < 0)
- {
- syslog(LOG_ERR, _("Couldn't stat `%s': %m"),
- f);
- return 0;
- }
-
- if(s.st_uid != geteuid())
- {
- syslog(LOG_ERR, _("`%s' is owned by UID %d instead of %d"),
- f, s.st_uid, geteuid());
- return 0;
- }
-
- if(S_ISLNK(s.st_mode))
- {
- syslog(LOG_WARNING, _("Warning: `%s' is a symlink"),
- f);
-
- if(readlink(f, l, MAXBUFSIZE) < 0)
- {
- syslog(LOG_ERR, _("Unable to read symbolic link `%s': %m"), f);
- return 0;
- }
-
- f = l;
- goto check1;
- }
-
- *p = x;
- f = file;
-
-check2:
- if(lstat(f, &s) < 0 && errno != ENOENT)
- {
- syslog(LOG_ERR, _("Couldn't stat `%s': %m"),
- f);
- return 0;
- }
-
- if(errno == ENOENT)
- return 1;
-
- if(s.st_uid != geteuid())
- {
- syslog(LOG_ERR, _("`%s' is owned by UID %d instead of %d"),
- f, s.st_uid, geteuid());
- return 0;
- }
-
- if(S_ISLNK(s.st_mode))
- {
- syslog(LOG_WARNING, _("Warning: `%s' is a symlink"),
- f);
-
- if(readlink(f, l, MAXBUFSIZE) < 0)
- {
- syslog(LOG_ERR, _("Unable to read symbolic link `%s': %m"), f);
- return 0;
- }
-
- f = l;
- goto check2;
- }
-
- if(s.st_mode & 0007)
- {
- /* Accessible by others */
- syslog(LOG_ERR, _("`%s' has unsecure permissions"),
- f);
- return 0;
- }
-
- return 1;
+ FILE *r;
+ char *directory;
+ char *fn;
+
+ /* Check stdin and stdout */
+ if(!isatty(0) || !isatty(1)) {
+ /* Argh, they are running us from a script or something. Write
+ the files to the current directory and let them burn in hell
+ for ever. */
+ fn = xstrdup(filename);
+ } else {
+ /* Ask for a file and/or directory name. */
+ fprintf(stdout, _("Please enter a file to save %s to [%s]: "),
+ what, filename);
+ fflush(stdout);
+
+ fn = readline(stdin, NULL, NULL);
+
+ if(!fn) {
+ fprintf(stderr, _("Error while reading stdin: %s\n"),
+ strerror(errno));
+ return NULL;
+ }
+
+ if(!strlen(fn))
+ /* User just pressed enter. */
+ fn = xstrdup(filename);
+ }
+
+#ifdef HAVE_MINGW
+ if(fn[0] != '\\' && fn[0] != '/' && !strchr(fn, ':')) {
+#else
+ if(fn[0] != '/') {
+#endif
+ /* The directory is a relative path or a filename. */
+ char *p;
+
+ directory = get_current_dir_name();
+ xasprintf(&p, "%s/%s", directory, fn);
+ free(fn);
+ free(directory);
+ fn = p;
+ }
+
+ umask(0077); /* Disallow everything for group and other */
+
+ /* Open it first to keep the inode busy */
+
+ r = fopen(fn, "r+") ?: fopen(fn, "w+");
+
+ if(!r) {
+ fprintf(stderr, _("Error opening file `%s': %s\n"),
+ fn, strerror(errno));
+ free(fn);
+ return NULL;
+ }
+
+ free(fn);
+
+ return r;