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Initial revision

#include	"compiler.h"
#include	<sys/stat.h>
#include	<time.h>
#include	"codecnv.h"
#include	"dosio.h"
#if defined(WIN32)
#include	<direct.h>
#endif
#if 0
#include <sys/param.h>
#include <unistd.h>
#endif

static	char	curpath[MAX_PATH];
static	char	*curfilep = curpath;

#define ISKANJI(c)	((((c) - 0xa1) & 0xff) < 0x5c)


void dosio_init(void) {
}

void dosio_term(void) {
}

/* ファイル操作 */
FILEH file_open(const char *path) {

	return(fopen(path, "rb+"));
}

FILEH file_open_rb(const char *path) {

	return(fopen(path, "rb+"));
}

FILEH file_create(const char *path) {

	return(fopen(path, "wb+"));
}

long file_seek(FILEH handle, long pointer, int method) {

	fseek(handle, pointer, method);
	return(ftell(handle));
}

UINT file_read(FILEH handle, void *data, UINT length) {

	return((UINT)fread(data, 1, length, handle));
}

UINT file_write(FILEH handle, const void *data, UINT length) {

	return((UINT)fwrite(data, 1, length, handle));
}

short file_close(FILEH handle) {

	fclose(handle);
	return(0);
}

UINT file_getsize(FILEH handle) {

	struct stat sb;

	if (fstat(fileno(handle), &sb) == 0) {
		return(sb.st_size);
	}
	return(0);
}

short file_attr(const char *path) {

struct stat	sb;
	short	attr;

	if (stat(path, &sb) == 0) {
#ifndef WIN32
		if (S_ISDIR(sb.st_mode)) {
			return(FILEATTR_DIRECTORY);
		}
		attr = 0;
		if (!(sb.st_mode & S_IWUSR)) {
			attr |= FILEATTR_READONLY;
		}
#else
		if (sb.st_mode & _S_IFDIR) {
			attr = FILEATTR_DIRECTORY;
		}
		else {
			attr = 0;
		}
		if (!(sb.st_mode & S_IWRITE)) {
			attr |= FILEATTR_READONLY;
		}
#endif
		return(attr);
	}
	return(-1);
}

short file_getdatetime(FILEH handle, DOSDATE *dosdate, DOSTIME *dostime) {

struct stat sb;
struct tm	*ftime;

	if (fstat(fileno(handle), &sb) == 0) {
		ftime = localtime(&sb.st_mtime);
		if (ftime) {
			if (dosdate) {
				dosdate->year = ftime->tm_year + 1900;
				dosdate->month = ftime->tm_mon + 1;
				dosdate->day = ftime->tm_mday;
			}
			if (dostime) {
				dostime->hour = ftime->tm_hour;
				dostime->minute = ftime->tm_min;
				dostime->second = ftime->tm_sec;
			}
			return(0);
		}
	}
	return(-1);
}

short file_delete(const char *path) {

	return(unlink(path));
}

short file_dircreate(const char *path) {

#ifndef WIN32
	return((short)mkdir(path, 0777));
#else
	return((short)mkdir(path));
#endif
}


/* カレントファイル操作 */
void file_setcd(const char *exepath) {

	milstr_ncpy(curpath, exepath, sizeof(curpath));
	curfilep = file_getname(curpath);
	*curfilep = '\0';
}

char *file_getcd(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(curpath);
}

FILEH file_open_c(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(file_open(curpath));
}

FILEH file_open_rb_c(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(file_open_rb(curpath));
}

FILEH file_create_c(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(file_create(curpath));
}

short file_delete_c(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(file_delete(curpath));
}

short file_attr_c(const char *sjis) {

	*curfilep = '\0';
	file_catname(curpath, sjis, sizeof(curpath));
	return(file_attr_c(curpath));
}


static int euckanji1st(const char *str, int pos) {

	int		ret;

	ret = 0;
	while((pos >= 0) &&
		(((str[pos--] - 0xa1) & 0xff) < 0x5d)) {
		ret ^= 1;
	}
	return(ret);
}

void file_cpyname(char *dst, const char *src, int maxlen) {

	int		i;

	if (maxlen--) {
		for (i=0; i<maxlen && src[i]; i++) {
			dst[i] = src[i];
		}
		if (i) {
			if (euckanji1st(src, i-1)) {
				i--;
			}
		}
		dst[i] = '\0';
	}
}

void file_catname(char *path, const char *sjis, int maxlen) {

	while(maxlen) {
		if (*path == '\0') {
			break;
		}
		path++;
		maxlen--;
	}
	if (maxlen) {
		codecnv_sjis2euc(path, maxlen, sjis, (UINT)-1);
		while(1) {
			if (!ISKANJI(*path)) {
				if (*(path+1) == '\0') {
					break;
				}
				path++;
			}
			else if ((((*path) - 0x41) & 0xff) < 26) {
				*path |= 0x20;
			}
			else if (*path == '\\') {
				*path = '/';
			}
			else if (*path == '\0') {
				break;
			}
			path++;
		}
	}
}

BOOL file_cmpname(char *path, const char *sjis) {

	char	euc[MAX_PATH];

	codecnv_sjis2euc(euc, sizeof(euc), sjis, (UINT)-1);
	return(strcmp(path, euc));
}

char *file_getname(char *path) {

	char	*ret;

	ret = path;
	while(1) {
		if (ISKANJI(*path)) {
			if (*(path+1) == '\0') {
				break;
			}
			path++;
		}
		else if (*path == '/') {
			ret = path + 1;
		}
		else if (*path == '\0') {
			break;
		}
		path++;
	}
	return(ret);
}

void file_cutname(char *path) {

	char	*p;

	p = file_getname(path);
	*p = '\0';
}

char *file_getext(char *path) {

	char	*p;
	char	*q;

	p = file_getname(path);
	q = NULL;
	while(*p != '\0') {
		if (*p == '.') {
			q = p + 1;
		}
		p++;
	}
	if (q == NULL) {
		q = p;
	}
	return(q);
}

void file_cutext(char *path) {

	char	*p;
	char	*q;

	p = file_getname(path);
	q = NULL;
	while(*p != '\0') {
		if (*p == '.') {
			q = p;
		}
		p++;
	}
	if (q != NULL) {
		*q = '\0';
	}
}

void file_cutseparator(char *path) {

	int		pos;

	pos = strlen(path) - 1;
	if ((pos > 0) && (path[pos] == '/')) {
		path[pos] = '\0';
	}
}

void file_setseparator(char *path, int maxlen) {

	int		pos;

	pos = strlen(path);
	if ((pos) && (path[pos-1] != '/') && ((pos + 2) < maxlen)) {
		path[pos++] = '/';
		path[pos] = '\0';
	}
}