kolibri-libc:

- Fixed errno
- Fixed time functions and added new
- Socket functions are now in libraries

git-svn-id: svn://kolibrios.org@8787 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/kolibri-libc/compile_flags.txt

@@ -1,5 +1,5 @@
 -D
-_KOLIBRI_LIBC_OBJ
+_BUILD_LIBC
 -I
 include
 

programs/develop/libraries/kolibri-libc/include/ctype.h

@@ -20,7 +20,7 @@
 #define __UPPER   512
 #define __XDIGIT 1024
 
-#ifdef _KOLIBRI_LIBC_OBJ 
+#ifdef _BUILD_LIBC 
 extern unsigned short __is[129];
 #else
 extern unsigned short *__is;

programs/develop/libraries/kolibri-libc/include/errno.h

@@ -7,7 +7,13 @@
 extern "C" {
 #endif
 
-extern int errno;
+#ifdef _BUILD_LIBC
+extern int _errno;
+#define errno _errno 
+#else
+extern int* _errno;
+#define errno *_errno
+#endif
 
 #define EPERM 1 /* Operation not permitted */
 #define ENOENT 2 /* No such file or directory */
@@ -141,4 +147,4 @@ extern int errno;
 }
 #endif
 
-#endif // _ERRNO_H_
+#endif // _ERRNO_H_

programs/develop/libraries/kolibri-libc/include/libc_version.h

@@ -1,10 +0,0 @@
-#ifndef _LIBC_VERSION_H_
-#define _LIBC_VERSION_H_
-
-#include <stddef.h>
-
-#define  _LIBC_VERSION 8745
-
-extern unsigned _FUNC(_libc_get_version)();
-
-#endif

programs/develop/libraries/kolibri-libc/include/limits.h

@@ -3,6 +3,7 @@
 
 
 #define INT_MAX       2147483647
+#define INT_MIN       -2147483648
 #define UINT_MAX      (INT_MAX * 2U + 1)
 
 

programs/develop/libraries/kolibri-libc/include/stddef.h

@@ -26,7 +26,7 @@ typedef uint64_t uintmax_t;
     #define NULL ((void*)0)
 #endif
 
-#ifdef _KOLIBRI_LIBC_OBJ
+#ifdef _BUILD_LIBC
     #define _FUNC(func) func
 #else
     #define _FUNC(func) (*func)

programs/develop/libraries/kolibri-libc/include/sys/socket.h

@@ -76,169 +76,16 @@ typedef struct{
 }optstruct;
 #pragma pack(pop)
 
-static inline 
+extern int _FUNC(socket)(int domain, int type, int protocol);
-void _conv_socket_err(){
+extern int _FUNC(close)(int socket);
-    switch(errno){
+extern int _FUNC(bind)(int socket, const struct sockaddr *addres, int addres_len);
-        case 1:  errno = ENOBUFS; break;
+extern int _FUNC(listen)(int socket, int backlog);
-        case 2:  errno = EINPROGRESS; break;
+extern int _FUNC(connect)(int socket, const struct sockaddr* address, int socket_len);
-        case 4:  errno = EOPNOTSUPP; break; 
+extern int _FUNC(accept)(int socket, const struct sockaddr *address, int address_len);
-        case 6:  errno = EWOULDBLOCK; break;
+extern int _FUNC(send)(int socket, const void *message, size_t msg_len, int flag);
-        case 9:  errno = ENOTCONN; break;
+extern int _FUNC(recv)(int socket, void *buffer, size_t buff_len, int flag);
-        case 10: errno = EALREADY; break;
+extern int _FUNC(setsockopt)(int socket,const optstruct* opt);
-        case 11: errno = EINVAL; break;
+extern int _FUNC(getsockopt)(int socket, optstruct* opt);
-        case 12: errno = EMSGSIZE; break;
+extern int _FUNC(socketpair)(int *socket1, int *socket2);
-        case 18: errno = ENOMEM; break;
-        case 20: errno = EADDRINUSE; break;
-        case 61: errno = ECONNREFUSED; break;
-        case 52: errno = ECONNRESET; break;
-        case 56: errno = EISCONN; break;
-        case 60: errno = ETIMEDOUT; break;
-        case 54: errno = ECONNABORTED; break;
-        default: errno = 0; break;
-    }
-}
-
-static inline 
-int socket(int domain, int type, int protocol)
-{
-    int socket;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(socket)
-        :"a"(75), "b"(0), "c"(domain), "d"(type), "S"(protocol)
-    );
-    _conv_socket_err();
-    return socket;
-}
-
-static inline 
-int close(int socket)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(1), "c"(socket)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int bind(int socket, const struct sockaddr *addres, int addres_len)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(2), "c"(socket), "d"(addres), "S"(addres_len)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int listen(int socket, int backlog)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(3), "c"(socket), "d"(backlog)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int connect(int socket, const struct sockaddr* address, int socket_len)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(4), "c"(socket), "d"(address), "S"(socket_len)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline int 
-accept(int socket, const struct sockaddr *address, int address_len)
-{
-    int new_socket;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(new_socket)
-        :"a"(75), "b"(5), "c"(socket), "d"(address), "S"(address_len)
-    );
-    _conv_socket_err();
-    return new_socket;
-}
-
-static inline 
-int send(int socket, const void *message, size_t msg_len, int flag)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(6), "c"(socket), "d"(message), "S"(msg_len), "D"(flag)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int recv(int socket, void *buffer, size_t buff_len, int flag)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(7), "c"(socket), "d"(buffer), "S"(buff_len), "D"(flag)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int setsockopt(int socket,const optstruct* opt)
-{
-    int status;
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(8), "c"(socket),"d"(opt)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int getsockopt(int socket, optstruct* opt)
-{
-    int status; 
-    asm_inline(
-        "int $0x40"
-        :"=b"(errno), "=a"(status)
-        :"a"(75), "b"(9), "c"(socket),"d"(opt)
-    );
-    _conv_socket_err();
-    return status;
-}
-
-static inline 
-int socketpair(int *socket1, int *socket2)
-{
-   asm_inline(
-        "int $0x40"
-        :"=b"(*socket2), "=a"(*socket1)
-        :"a"(75), "b"(10)
-    ); 
-    errno=*socket2;
-    _conv_socket_err();
-    return *socket1;
-}
 
 #endif //_SOCKET_H_

programs/develop/libraries/kolibri-libc/include/time.h

@@ -8,6 +8,7 @@ typedef unsigned long int time_t;
 #define clock() _ksys_get_clock()
 #define CLOCKS_PER_SEC 100
 
+#pragma pack(push, 1)
 struct tm {
 	int tm_sec;	 /*	seconds after the minute	0-61*/
 	int tm_min;	 /* minutes after the hour	0-59 */
@@ -19,12 +20,12 @@ struct tm {
 	int tm_yday; /* days since January 1	0-365 	*/
 	int tm_isdst; /* Daylight Saving Time flag	*/
 };
+#pragma pack(pop)
 
 extern time_t _FUNC(mktime)(struct tm * timeptr);
 extern time_t _FUNC(time)(time_t* timer);
-extern struct tm * _FUNC(localtime)(const time_t * timer); /* non-standard!  ignore parameter and return just time now, not generate tm_isdst, tm_yday, tm_wday == -1  */
+extern struct tm * _FUNC(localtime)(const time_t * timer); 
 extern double _FUNC(difftime)(time_t end, time_t beginning);
-
+extern char*  _FUNC(asctime)(const struct tm *tm);
-extern struct tm buffertime;
 
 #endif

programs/develop/libraries/kolibri-libc/samples/file_io.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 #define READ_MAX 255
 
@@ -28,6 +29,7 @@ int main(int argc, char **argv)
   fputs(test_str1+i,f);
   char null_term = '\0';
   fwrite(&null_term, sizeof(char), 1, f);
+  printf("Error: %s\n",strerror(errno));
   fclose(f);
 
   //copy from testfile.txt to copyfile.txt

programs/develop/libraries/kolibri-libc/samples/whois.c

@@ -13,6 +13,7 @@ int errno;
 #include <stdlib.h>	
 #include <sys/socket.h>	
 #include <clayer/network.h>
+#include <conio.h>
 
 FILE *out=stdout;
 
@@ -61,7 +62,8 @@ int main(int argc , char *argv[])
 		exit(0);
 	}
 	if(out==stdout){
-		con_set_title("Whois");
+		con_init();
+		(*con_set_title)("Whois");
 	}
 	get_whois_data(domain , &data);
 	exit(0);

programs/develop/libraries/kolibri-libc/source/Makefile

@@ -5,7 +5,7 @@ endif
 KPACK=kpack
 FASM=fasm 
 
-CFLAGS =  -c -nostdinc -I../include -DGNUC -D_KOLIBRI_LIBC_OBJ -Os -fno-common -fno-builtin -fno-leading-underscore -fno-pie
+CFLAGS =  -c -nostdinc -I../include -DGNUC -D_BUILD_LIBC -fno-common -Os -fno-builtin -fno-leading-underscore -fno-pie
 
 SRC=libc.c
 LIB=../lib/libc.obj

programs/develop/libraries/kolibri-libc/source/Tupfile.lua

@@ -2,7 +2,7 @@ if tup.getconfig("NO_GCC") ~= "" then return end
 HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../../../../" or tup.getconfig("HELPERDIR")
 tup.include(HELPERDIR .. "/use_gcc.lua")
 
-CFLAGS = " -c -w -nostdinc -DGNUC -D_KOLIBRI_LIBC_OBJ -Os -fno-common -fno-builtin -fno-leading-underscore -fno-pie" 
+CFLAGS = " -c -w -nostdinc -DGNUC -D_BUILD_LIBC -Os -fno-common -fno-builtin -fno-leading-underscore -fno-pie" 
 INCLUDES = " -I../include"
 
 tup.rule("../linuxtools/src/ExportGen.c", "gcc %f -o %o" , "../linuxtools/ExportGen")

programs/develop/libraries/kolibri-libc/source/libc.c

@@ -1,9 +1,3 @@
-#include <libc_version.h>
-
-unsigned _libc_get_version(){
-    return _LIBC_VERSION;
-}
-
 #include "ctype/is.c"
 #include "ctype/tolower.c" 
 #include "ctype/toupper.c"
@@ -15,6 +9,7 @@ unsigned _libc_get_version(){
 #include "sys/telldir.c"
 #include "sys/closedir.c"
 #include "sys/dir.c"
+#include "sys/socket.c"
 
 #include "stdio/clearerr.c"
 #include "stdio/gets.c"
@@ -93,18 +88,14 @@ unsigned _libc_get_version(){
 #include "stdlib/free.c"
 #include "stdlib/llabs.c"
 #include "stdlib/exit.c"
-#include "stdlib/mktime.c"
 #include "stdlib/atoi.c"
-#include "stdlib/localtime.c"
 #include "stdlib/labs.c"
-#include "stdlib/difftime.c"
 #include "stdlib/realloc.c"
 #include "stdlib/ldiv.c"
 #include "stdlib/abs.c"
 #include "stdlib/div.c"
 #include "stdlib/atol.c"
 #include "stdlib/itoa.c"
-#include "stdlib/time.c"
 #include "stdlib/strtol.c"
 #include "stdlib/rand.c"
 
@@ -118,6 +109,12 @@ unsigned _libc_get_version(){
 #include "math/sinh.c"
 #include "math/tanh.c"
 
+#include "time/difftime.c"
+#include "time/localtime.c"
+#include "time/mktime.c"
+#include "time/time.c"
+#include "time/asctime.c"
+
 __asm__(
     ".include \"math/acos.s\"\n\t"
     ".include \"math/asin.s\"\n\t"
@@ -134,7 +131,8 @@ __asm__(
     ".include \"math/modfl.s\"\n\t"
     ".include \"math/pow.s\"\n\t"
     ".include \"math/pow2.s\"\n\t"
-    ".include \"math/pow10.s\"\n\t"   
+    ".include \"math/pow10.s\"\n\t"
+    ".include \"math/sqrt.s\"\n\t"
 );
 
 __asm__(
@@ -142,5 +140,6 @@ __asm__(
     ".include \"setjmp/setjmp.s\""
 );
 
+#include "libtcc/libtcc1.c"
 #include "stdlib/___chkstk_ms.c"
 #include "exports/exports.c"

programs/develop/libraries/kolibri-libc/source/math/atan2.s

@@ -30,7 +30,7 @@ doit:
 	fpatan
 	ret
 isanan:
-	movl	$1, errno
+	movl	$1, _errno
 	fstp	%st(0)
 	fstp	%st(0)
 	fldl	nan

programs/develop/libraries/kolibri-libc/source/stdlib/localtime.c

@@ -1,32 +0,0 @@
-#include <time.h>
-#include <sys/ksys.h>
-
-struct tm buffertime;
-
-struct tm * localtime (const time_t * timer)
-/* non-standard!  ignore parameter and return just time now */
-{
-	int kos_date, kos_time;
-    kos_date = _ksys_get_date();
-    kos_time = _ksys_get_clock();
-   
-    int bcd_day = (kos_date >> 16);
-    int bcd_mon = ((kos_date & 0xFF00) >> 8);
-    int bcd_year = (kos_date & 0xFF);
-    buffertime.tm_mday = ((bcd_day & 0xF0)>>4)*10 + (bcd_day & 0x0F);
-    buffertime.tm_mon = ((bcd_mon & 0xF0)>>4)*10 + (bcd_mon & 0x0F) - 1;
-    buffertime.tm_year = ((bcd_year & 0xF0)>>4)*10 + (bcd_year & 0x0F);
-   
-    buffertime.tm_wday = buffertime.tm_yday = buffertime.tm_isdst = -1; /* temporary */
-   
-    int bcd_sec = (kos_time >> 16);
-    int bcd_min = ((kos_time & 0xFF00) >> 8);
-    int bcd_hour = (kos_time & 0xFF);
-
-    buffertime.tm_sec = ((bcd_sec & 0xF0)>>4)*10 + (bcd_sec & 0x0F);
-    buffertime.tm_min = ((bcd_min & 0xF0)>>4)*10 + (bcd_min & 0x0F);
-    buffertime.tm_hour = ((bcd_hour & 0xF0)>>4)*10 + (bcd_hour & 0x0F);
-
-	return &buffertime;
-}
- 

programs/develop/libraries/kolibri-libc/source/stdlib/time.c

@@ -1,9 +0,0 @@
-#include <time.h>
-#include <sys/ksys.h>
-
-time_t time (time_t* timer)
-{
-	time_t t = mktime(localtime(0));
-	if (timer) *timer = t;
-	return t;
-}

programs/develop/libraries/kolibri-libc/source/string/strerror.c

@@ -3,7 +3,7 @@
 #include <string.h>
 #include <errno.h>
 
-int errno;
+int _errno;
 
 char* strerror(int err)
 {

programs/develop/libraries/kolibri-libc/source/symbols.txt

@@ -47,7 +47,6 @@ atoi
 atol
 atoll
 calloc
-difftime
 div
 exit
 free
@@ -56,20 +55,17 @@ labs
 ldiv
 llabs
 lldiv
-localtime
 malloc
-mktime
 realloc
 strtol
-time
 srand
 rand
 !____STRING____
-memcpy
+!memcpy
 memchr
 memcmp
-memmove
+!memmove
-memset
+!memset
 strncat
 strchr
 strcat
@@ -89,6 +85,7 @@ strspn
 strstr
 strtok
 strxfrm
+_errno
 !____SYS____
 closedir
 opendir
@@ -101,6 +98,17 @@ mkdir
 rmdir
 setcwd
 getcwd
+!____SOCKET____
+socket
+close
+bind
+listen
+connect
+accept
+send
+recv
+setsockopt
+socketpair
 !____UNISTD____
 !____MATH____
 acosh
@@ -156,5 +164,9 @@ con_set_cursor_height
 con_cls
 con_get_cursor_pos
 con_set_cursor_pos
-!___LIBC_VERSION___
+!____TIME____
-_libc_get_version
+mktime
+time
+localtime
+asctime
+difftime

programs/develop/libraries/kolibri-libc/source/sys/socket.c

@@ -0,0 +1,155 @@
+#include <sys/socket.h>
+
+static void _conv_socket_err(){
+    switch(errno){
+        case 1:  errno = ENOBUFS; break;
+        case 2:  errno = EINPROGRESS; break;
+        case 4:  errno = EOPNOTSUPP; break; 
+        case 6:  errno = EWOULDBLOCK; break;
+        case 9:  errno = ENOTCONN; break;
+        case 10: errno = EALREADY; break;
+        case 11: errno = EINVAL; break;
+        case 12: errno = EMSGSIZE; break;
+        case 18: errno = ENOMEM; break;
+        case 20: errno = EADDRINUSE; break;
+        case 61: errno = ECONNREFUSED; break;
+        case 52: errno = ECONNRESET; break;
+        case 56: errno = EISCONN; break;
+        case 60: errno = ETIMEDOUT; break;
+        case 54: errno = ECONNABORTED; break;
+        default: errno = 0; break;
+    }
+}
+
+int socket(int domain, int type, int protocol)
+{
+    int socket;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(socket)
+        :"a"(75), "b"(0), "c"(domain), "d"(type), "S"(protocol)
+    );
+    _conv_socket_err();
+    return socket;
+}
+ 
+int close(int socket)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(1), "c"(socket)
+    );
+    _conv_socket_err();
+    return status;
+}
+ 
+int bind(int socket, const struct sockaddr *addres, int addres_len)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(2), "c"(socket), "d"(addres), "S"(addres_len)
+    );
+    _conv_socket_err();
+    return status;
+}
+ 
+int listen(int socket, int backlog)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(3), "c"(socket), "d"(backlog)
+    );
+    _conv_socket_err();
+    return status;
+}
+
+int connect(int socket, const struct sockaddr* address, int socket_len)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(4), "c"(socket), "d"(address), "S"(socket_len)
+    );
+    _conv_socket_err();
+    return status;
+}
+
+int accept(int socket, const struct sockaddr *address, int address_len)
+{
+    int new_socket;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(new_socket)
+        :"a"(75), "b"(5), "c"(socket), "d"(address), "S"(address_len)
+    );
+    _conv_socket_err();
+    return new_socket;
+}
+
+int send(int socket, const void *message, size_t msg_len, int flag)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(6), "c"(socket), "d"(message), "S"(msg_len), "D"(flag)
+    );
+    _conv_socket_err();
+    return status;
+}
+ 
+int recv(int socket, void *buffer, size_t buff_len, int flag)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(7), "c"(socket), "d"(buffer), "S"(buff_len), "D"(flag)
+    );
+    _conv_socket_err();
+    return status;
+}
+
+int setsockopt(int socket,const optstruct* opt)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(8), "c"(socket),"d"(opt)
+    );
+    _conv_socket_err();
+    return status;
+}
+ 
+int getsockopt(int socket, optstruct* opt)
+{
+    int status; 
+    asm_inline(
+        "int $0x40"
+        :"=b"(errno), "=a"(status)
+        :"a"(75), "b"(9), "c"(socket),"d"(opt)
+    );
+    _conv_socket_err();
+    return status;
+}
+
+int socketpair(int *socket1, int *socket2)
+{
+   asm_inline(
+        "int $0x40"
+        :"=b"(*socket2), "=a"(*socket1)
+        :"a"(75), "b"(10)
+    ); 
+    errno=*socket2;
+    _conv_socket_err();
+    return *socket1;
+}
+ 

programs/develop/libraries/kolibri-libc/source/time/asctime.c

@@ -0,0 +1,27 @@
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <stdio.h>
+
+const char *wday_str[7]={"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
+const char *mon_str[12]={"Jan", "Feb", "Mar", "Ap", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+#pragma GCC push_options
+#pragma GCC optimize("O0")
+
+char *asctime(const struct tm *tm){
+	static char time_str[30];
+    if(tm->tm_wday>7 || tm->tm_wday<1 || tm->tm_mon<1 || tm->tm_mon>12){
+        errno = EINVAL;
+        return NULL;
+    }
+    snprintf(time_str, 26, "%.3s %.3s%3d %2d:%2d:%2d %d\n", 
+        wday_str[tm->tm_wday-1], 
+        mon_str[tm->tm_mon-1], 
+		tm->tm_mday, tm->tm_hour, 
+		tm->tm_min, tm->tm_sec, 
+		1900 + tm->tm_year
+    );
+    return time_str;
+}
+#pragma GCC pop_options

programs/develop/libraries/kolibri-libc/source/time/localtime.c

@@ -0,0 +1,108 @@
+#include <time.h>
+#include <sys/ksys.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+
+#define LEAPOCH (946684800LL + 86400*(31+29))
+
+#define DAYS_PER_400Y (365*400 + 97)
+#define DAYS_PER_100Y (365*100 + 24)
+#define DAYS_PER_4Y   (365*4   + 1)
+
+static int __secs_to_tm(long long t, struct tm *tm)
+{
+	long long days, secs, years;
+	int remdays, remsecs, remyears;
+	int qc_cycles, c_cycles, q_cycles;
+	int months;
+	int wday, yday, leap;
+	static const char days_in_month[] = {31,30,31,30,31,31,30,31,30,31,31,29};
+
+	// Reject time_t values whose year would overflow int
+	if (t < INT_MIN * 31622400LL || t > INT_MAX * 31622400LL)
+		return -1;
+	
+	secs = t - LEAPOCH;
+	days = secs / 86400;
+	remsecs = secs % 86400;
+	
+	if (remsecs < 0) {
+		remsecs += 86400;
+		days--;
+	}
+
+	wday = (3+days)%7;
+	if (wday < 0) wday += 7;
+
+	qc_cycles = days / DAYS_PER_400Y;
+	remdays = days % DAYS_PER_400Y;
+	if (remdays < 0) {
+		remdays += DAYS_PER_400Y;
+		qc_cycles--;
+	}
+
+	c_cycles = remdays / DAYS_PER_100Y;
+	if (c_cycles == 4) c_cycles--;
+	remdays -= c_cycles * DAYS_PER_100Y;
+
+	q_cycles = remdays / DAYS_PER_4Y;
+	if (q_cycles == 25) q_cycles--;
+	remdays -= q_cycles * DAYS_PER_4Y;
+
+	remyears = remdays / 365;
+	if (remyears == 4) remyears--;
+	remdays -= remyears * 365;
+
+	leap = !remyears && (q_cycles || !c_cycles);
+	yday = remdays + 31 + 28 + leap;
+	if (yday >= 365+leap) yday -= 365+leap;
+
+	years = remyears + 4*q_cycles + 100*c_cycles + 400LL*qc_cycles;
+
+	for (months=0; days_in_month[months] <= remdays; months++)
+		remdays -= days_in_month[months];
+
+	if (months >= 10) {
+		months -= 12;
+		years++;
+	}
+
+	if (years+100 > INT_MAX || years+100 < INT_MIN)
+		return -1;
+
+	tm->tm_year = years + 100;
+	tm->tm_mon = months + 2;
+	tm->tm_mday = remdays + 1;
+	tm->tm_wday = wday;
+	tm->tm_yday = yday;
+
+	tm->tm_hour = remsecs / 3600;
+	tm->tm_min = remsecs / 60 % 60;
+	tm->tm_sec = remsecs % 60;
+
+	return 0;
+}
+
+struct tm *__localtime_r(const time_t *restrict t, struct tm *restrict tm)
+{
+	// Reject time_t values whose year would overflow int because
+	// __secs_to_zone cannot safely handle them. 
+	if (*t < INT_MIN * 31622400LL || *t > INT_MAX * 31622400LL) {
+		errno = EOVERFLOW;
+		return NULL;
+	}
+	//__secs_to_zone(*t, 0, &tm->tm_isdst, &tm->__tm_gmtoff, 0, &tm->__tm_zone);
+	if (__secs_to_tm((long long)*t,tm) < 0) {
+		errno = EOVERFLOW;
+		return NULL;
+	}
+	return tm;
+}
+
+struct tm * localtime (const time_t * timer)
+{
+	static struct tm tm;
+	return __localtime_r(timer, &tm);
+}
+ 

programs/develop/libraries/kolibri-libc/source/time/time.c

@@ -0,0 +1,34 @@
+#include <time.h>
+#include <sys/ksys.h>
+
+static struct tm __buffertime;
+
+time_t time(time_t *timer){
+    int kos_date, kos_time;
+    kos_date = _ksys_get_date();
+    kos_time = _ksys_get_clock();
+   
+    int bcd_day = (kos_date >> 16);
+    int bcd_mon = ((kos_date & 0xFF00) >> 8);
+    int bcd_year = (kos_date & 0xFF);
+    __buffertime.tm_mday = ((bcd_day & 0xF0)>>4)*10 + (bcd_day & 0x0F);
+    __buffertime.tm_mon = ((bcd_mon & 0xF0)>>4)*10 + (bcd_mon & 0x0F) - 1;
+    __buffertime.tm_year = ((bcd_year & 0xF0)>>4)*10 + (bcd_year & 0x0F) + 100;
+   
+    __buffertime.tm_wday = __buffertime.tm_yday = __buffertime.tm_isdst = -1; /* temporary */
+   
+    int bcd_sec = (kos_time >> 16);
+    int bcd_min = ((kos_time & 0xFF00) >> 8);
+    int bcd_hour = (kos_time & 0xFF);
+ 
+    __buffertime.tm_sec = ((bcd_sec & 0xF0)>>4)*10 + (bcd_sec & 0x0F);
+    __buffertime.tm_min = ((bcd_min & 0xF0)>>4)*10 + (bcd_min & 0x0F);
+    __buffertime.tm_hour = ((bcd_hour & 0xF0)>>4)*10 + (bcd_hour & 0x0F);
+    
+    time_t ret = mktime(&__buffertime);
+    if(timer){
+        *timer=ret;
+    }
+    
+    return ret;
+}