/*  *	HT Editor *	sys.cc * *	Copyright (C) 1999-2002 Stefan Weyergraf (stefan@weyergraf.de) * *	This program is free software; you can redistribute it and/or modify *	it under the terms of the GNU General Public License version 2 as *	published by the Free Software Foundation. * *	This program is distributed in the hope that it will be useful, *	but WITHOUT ANY WARRANTY; without even the implied warranty of *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *	GNU General Public License for more details. * *	You should have received a copy of the GNU General Public License *	along with this program; if not, write to the Free Software *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */#include "sys.h"#include <ctype.h>#include <errno.h>#include <limits.h>#include <cstdarg>#include <cstdio>#include <cstdlib>#include <cstring>#include <sys/stat.h>#include "file.h"#include "strtools.h"/* *	COMMON SYS */#ifndef S_IFMT#define S_IFMT 0xf000#endif#ifndef S_ISREG#	ifndef S_IFREG#		define S_ISREG(m) (0)#	else#		define S_ISREG(m) (((m) & S_IFMT)==S_IFREG)#	endif#endif#ifndef S_ISBLK#	ifndef S_IFBLK#		define S_ISBLK(m) (0)#	else#		define S_ISBLK(m) (((m) & S_IFMT)==S_IFBLK)#	endif#endif#ifndef S_ISCHR#	ifndef S_IFCHR#		define S_ISCHR(m) (0)#	else#		define S_ISCHR(m) (((m) & S_IFMT)==S_IFCHR)#	endif#endif#ifndef S_ISDIR#	ifndef S_IFDIR#		define S_ISDIR(m) (0)#	else#		define S_ISDIR(m) (((m) & S_IFMT)==S_IFDIR)#	endif#endif#ifndef S_ISFIFO#	ifndef S_IFFIFO#		define S_ISFIFO(m) (0)#	else#		define S_ISFIFO(m) (((m) & S_IFMT)==S_IFFIFO)#	endif#endif#ifndef S_ISLNK#	ifndef S_IFLNK#		define S_ISLNK(m) (0)#	else#		define S_ISLNK(m) (((m) & S_IFMT)==S_IFLNK)#	endif#endif#ifndef S_ISSOCK#	ifndef S_IFSOCK#		define S_ISSOCK(m) (0)#	else#		define S_ISSOCK(m) (((m) & S_IFMT)==S_IFSOCK)#	endif#endif#ifndef S_IRUSR#define S_IRUSR 0#endif#ifndef S_IRGRP#define S_IRGRP 0#endif#ifndef S_IROTH#define S_IROTH 0#endif#ifndef S_IWUSR#define S_IWUSR 0#endif#ifndef S_IWGRP#define S_IWGRP 0#endif#ifndef S_IWOTH#define S_IWOTH 0#endif#ifndef S_IXUSR#define S_IXUSR 0#endif#ifndef S_IXGRP#define S_IXGRP 0#endif#ifndef S_IXOTH#define S_IXOTH 0#endifint sys_ht_mode(int mode){	int m = 0;	if (S_ISREG(mode)) {		m |= HT_S_IFREG;	} else if (S_ISBLK(mode)) {		m |= HT_S_IFBLK;	} else if (S_ISCHR(mode)) {		m |= HT_S_IFCHR;	} else if (S_ISDIR(mode)) {		m |= HT_S_IFDIR;	} else if (S_ISFIFO(mode)) {		m |= HT_S_IFFIFO;	} else if (S_ISLNK(mode)) {		m |= HT_S_IFLNK;	} else if (S_ISSOCK(mode)) {		m |= HT_S_IFSOCK;	}	if (mode & S_IRUSR) m |= HT_S_IRUSR;	if (mode & S_IRGRP) m |= HT_S_IRGRP;	if (mode & S_IROTH) m |= HT_S_IROTH;		if (mode & S_IWUSR) m |= HT_S_IWUSR;	if (mode & S_IWGRP) m |= HT_S_IWGRP;	if (mode & S_IWOTH) m |= HT_S_IWOTH;		if (mode & S_IXUSR) m |= HT_S_IXUSR;	if (mode & S_IXGRP) m |= HT_S_IXGRP;	if (mode & S_IXOTH) m |= HT_S_IXOTH;	return m;}static char *next_delim(char *s, is_path_delim delim){	while (*s) {		s++;		if (delim(*s)) return s;	}	return NULL;}static int flatten_path(char *path, is_path_delim delim){	if (!path || !*path)		return 0;	char *q = next_delim(path, delim);	int pp = flatten_path(q, delim);	int ll = q ? (q-path-1) : strlen(path)-1;	if ((ll == 2) && (ht_strncmp(path+1, "..", 2) == 0)) {		if (q) memmove(path, q, strlen(q)+1); else *path = 0;		pp++;	} else if ((ll == 1) && (ht_strncmp(path+1, ".", 1) == 0)) {		if (q) memmove(path, q, strlen(q)+1); else *path = 0;	} else if (pp) {		if (q) memmove(path, q, strlen(q)+1); else *path = 0;		pp--;	}	return pp;}