/****************************************************************************
- * Copyright (c) 1998,2000,2001 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2011,2012 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 *
****************************************************************************/
/****************************************************************************
- * Author: Thomas E. Dickey <dickey@clark.net> 1998,2000,2001 *
+ * Author: Thomas E. Dickey *
****************************************************************************/
#include <curses.priv.h>
+
+#include <ctype.h>
+
#include <tic.h>
-#include <nc_alloc.h>
-MODULE_ID("$Id: access.c,v 1.9 2001/06/23 22:11:49 tom Exp $")
+MODULE_ID("$Id: access.c,v 1.23 2012/09/01 19:21:29 tom Exp $")
+
+#ifdef __TANDEM
+#define ROOT_UID 65535
+#endif
+
+#ifndef ROOT_UID
+#define ROOT_UID 0
+#endif
#define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c))
_nc_rootname(char *path)
{
char *result = _nc_basename(path);
-#if !defined(MIXEDCASE_FILENAMES) || defined(PROG_EXT)
+#if !MIXEDCASE_FILENAMES || defined(PROG_EXT)
static char *temp;
char *s;
temp = strdup(result);
result = temp;
-#if !defined(MIXEDCASE_FILENAMES)
- int n;
+#if !MIXEDCASE_FILENAMES
for (s = result; *s != '\0'; ++s) {
- *s = LOWERCASE(*s);
+ *s = (char) LOWERCASE(*s);
}
#endif
#if defined(PROG_EXT)
return result;
}
-NCURSES_EXPORT(char *)
-_nc_basename(char *path)
+/*
+ * Check if a string appears to be an absolute pathname.
+ */
+NCURSES_EXPORT(bool)
+_nc_is_abs_path(const char *path)
{
- char *result = strrchr(path, '/');
+#if defined(__EMX__) || defined(__DJGPP__)
+#define is_pathname(s) ((((s) != 0) && ((s)[0] == '/')) \
+ || (((s)[0] != 0) && ((s)[1] == ':')))
+#else
+#define is_pathname(s) ((s) != 0 && (s)[0] == '/')
+#endif
+ return is_pathname(path);
+}
+
+/*
+ * Return index of the basename
+ */
+NCURSES_EXPORT(unsigned)
+_nc_pathlast(const char *path)
+{
+ const char *test = strrchr(path, '/');
#ifdef __EMX__
- if (result == 0)
- result = strrchr(path, '\\');
+ if (test == 0)
+ test = strrchr(path, '\\');
#endif
- if (result == 0)
- result = path;
+ if (test == 0)
+ test = path;
else
- result++;
- return result;
+ test++;
+ return (unsigned) (test - path);
+}
+
+NCURSES_EXPORT(char *)
+_nc_basename(char *path)
+{
+ return path + _nc_pathlast(path);
}
NCURSES_EXPORT(int)
_nc_access(const char *path, int mode)
{
- if (access(path, mode) < 0) {
+ int result;
+
+ if (path == 0) {
+ result = -1;
+ } else 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));
+ char *leaf;
+ _nc_STRCPY(head, path, sizeof(head));
+ leaf = _nc_basename(head);
if (leaf == 0)
leaf = head;
*leaf = '\0';
if (head == leaf)
- (void) strcpy(head, ".");
+ _nc_STRCPY(head, ".", sizeof(head));
- return access(head, R_OK | W_OK | X_OK);
+ result = access(head, R_OK | W_OK | X_OK);
+ } else {
+ result = -1;
}
- return -1;
+ } else {
+ result = 0;
+ }
+ return result;
+}
+
+NCURSES_EXPORT(bool)
+_nc_is_dir_path(const char *path)
+{
+ bool result = FALSE;
+ struct stat sb;
+
+ if (stat(path, &sb) == 0
+ && S_ISDIR(sb.st_mode)) {
+ result = TRUE;
}
- return 0;
+ return result;
+}
+
+NCURSES_EXPORT(bool)
+_nc_is_file_path(const char *path)
+{
+ bool result = FALSE;
+ struct stat sb;
+
+ if (stat(path, &sb) == 0
+ && S_ISREG(sb.st_mode)) {
+ result = TRUE;
+ }
+ return result;
}
#ifndef USE_ROOT_ENVIRON
|| getgid() != getegid())
return FALSE;
#endif
- return getuid() != 0 && geteuid() != 0; /* ...finally, disallow root */
+ /* ...finally, disallow root */
+ return (getuid() != ROOT_UID) && (geteuid() != ROOT_UID);
}
#endif