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path: root/atari/osspec.c
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#include <sys/types.h>

#include <limits.h>

#include <stdlib.h>

#include <unistd.h>

#include <stdbool.h>

#include <stdio.h>

#include <string.h>

#include <mint/osbind.h>

#include <mint/cookie.h>

#include <windom.h>


#include "atari/osspec.h"


NS_ATARI_SYSINFO atari_sysinfo;


void init_os_info(void)
{
	int16_t out[4];
	atari_sysinfo.gdosversion = Sversion();
	atari_sysinfo.large_sfont_pxh = 13;
	atari_sysinfo.medium_sfont_pxh = 6;
	atari_sysinfo.small_sfont_pxh = 4;
	/* todo: detect if system font is monospaced */
	atari_sysinfo.sfont_monospaced = true;
	if( appl_xgetinfo(AES_LARGEFONT, &out[0],  &out[1],  &out[2], &out[3] ) > 0 ){
		atari_sysinfo.large_sfont_pxh = out[0];
	}
	if( appl_xgetinfo(AES_SMALLFONT, &out[0],  &out[1],  &out[2], &out[3] ) > 0 ){
		atari_sysinfo.small_sfont_pxh = out[0];
	}	
}

int tos_getcookie(long tag, long * value)
{
	COOKIE * cptr;
	long oldsp;

	if( atari_sysinfo.gdosversion > TOS4VER ){
		return( Getcookie(tag, value) );
	}

	cptr = (COOKIE*)Setexc(0x0168, -1L);
	if(cptr != NULL) {
		do {
			if( cptr->c == tag ){
				if(cptr->v != 0 ){
					*value = cptr->v;
					return( C_FOUND );
				}
			}
		} while( (cptr++)->c != 0L );
	}
	return( C_NOTFOUND );
}

/* convert nonsense getcwd path (returned by mintlib getcwd on plain TOS) */
void fix_path(char * path)
{
	char npath[PATH_MAX];
	/* only apply fix to paths that contain /dev/ */
	if( strlen(path) < 6 ){
		return;
	}
	if( strncmp(path, "/dev/", 5) != 0 ) {
		return;
	}
	strncpy((char*)&npath, path, PATH_MAX);
	npath[0] = path[5];
	npath[1] = ':';
	npath[2] = 0;
	strcat((char*)&npath, &path[6]);
	strcpy(path, (char*)&npath);
}

/* 

 a fixed version of realpath() which returns valid 

 paths for TOS which have no root fs. (/ , U: )

*/
char * gdos_realpath(const char * path, char * rpath)
{
	size_t l;
	size_t i;
	char old;
	char fsep = 0x5C;
	if( rpath == NULL ){
		return( NULL );
	}
	if( atari_sysinfo.gdosversion > TOS4VER ){
		return( realpath(path, rpath) );
	}

	if( fsep == '/') {
		/* replace '\' with / */
		old = 0x5C; /* / */
	} else {
		/* replace '/' with \ */
		old = '/';
	}

	if( path[0] != '/' && path[0] != 0x5c && path[1] != ':') {
		/* it is not an absolute path */
		char cwd[PATH_MAX];
		getcwd((char*)&cwd, PATH_MAX);
		fix_path((char*)&cwd);
		strcpy(rpath, (char*)&cwd);
		l = strlen(rpath);
		if(rpath[l-1] != 0x5C && rpath[l-1] != '/') {
			rpath[l] = fsep;
			rpath[l+1] = 0;
		}
		if( (path[1] == '/' || path[1] == 0x5C ) ) {
			strcat(rpath, &path[2]);
		} else {
			strcat(rpath, path);
		}
	} else {
		strcpy(rpath, path);
	}
	/* convert path seperator to configured value: */
	l = strlen(rpath);
	for( i = 0; i<l-1; i++){
		if( rpath[i] == old ){
			rpath[i] = fsep;
		}
	}
	return( rpath );	
}