aboutsummaryrefslogtreecommitdiff
path: root/contrib/ncurses/ncurses/tinfo/access.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/access.c')
-rw-r--r--contrib/ncurses/ncurses/tinfo/access.c77
1 files changed, 58 insertions, 19 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/access.c b/contrib/ncurses/ncurses/tinfo/access.c
index 54e549497c94..6fbe92176045 100644
--- a/contrib/ncurses/ncurses/tinfo/access.c
+++ b/contrib/ncurses/ncurses/tinfo/access.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
@@ -27,29 +27,68 @@
****************************************************************************/
/****************************************************************************
- * Author: Thomas E. Dickey <dickey@clark.net> 1998 *
+ * Author: Thomas E. Dickey <dickey@clark.net> 1998,2000 *
****************************************************************************/
-
#include <curses.priv.h>
+#include <tic.h>
-MODULE_ID("$Id: access.c,v 1.1 1998/07/25 20:17:09 tom Exp $")
+MODULE_ID("$Id: access.c,v 1.4 2000/10/08 01:25:06 tom Exp $")
-int _nc_access(const char *path, int mode)
+char *
+_nc_basename(char *path)
{
- if (access(path, mode) < 0) {
- if ((mode & W_OK) != 0
- && errno == ENOENT) {
- char head[PATH_MAX];
- char *leaf = strrchr(strcpy(head, path), '/');
- if (leaf == 0)
- leaf = head;
- *leaf = '\0';
- if (head == leaf)
- (void)strcpy(head, ".");
- return access(head, R_OK|W_OK|X_OK);
- }
- return -1;
+ char *result = strrchr(path, '/');
+#ifdef __EMX__
+ if (result == 0)
+ result = strrchr(path, '\\');
+#endif
+ if (result == 0)
+ result = path;
+ else
+ result++;
+ return result;
+}
+
+int
+_nc_access(const char *path, int mode)
+{
+ if (access(path, mode) < 0) {
+ if ((mode & W_OK) != 0
+ && errno == ENOENT
+ && strlen(path) < PATH_MAX) {
+ char head[PATH_MAX];
+ char *leaf = _nc_basename(strcpy(head, path));
+
+ if (leaf == 0)
+ leaf = head;
+ *leaf = '\0';
+ if (head == leaf)
+ (void) strcpy(head, ".");
+
+ return access(head, R_OK | W_OK | X_OK);
}
- return 0;
+ return -1;
+ }
+ return 0;
+}
+
+#ifndef USE_ROOT_ENVIRON
+/*
+ * Returns true if we allow application to use environment variables that are
+ * used for searching lists of directories, etc.
+ */
+int
+_nc_env_access(void)
+{
+#if HAVE_ISSETUGID
+ if (issetugid())
+ return FALSE;
+#elif HAVE_GETEUID && HAVE_GETEGID
+ if (getuid() != geteuid()
+ || getgid() != getegid())
+ return FALSE;
+#endif
+ return getuid() != 0; /* ...finally, disallow root */
}
+#endif