kolibrios/programs/develop/ktcc/trunk/libc/fs/dir.c

107 lines
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C
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#include <stdlib.h>
#include <dir.h>
#include <stdbool.h>
#pragma pack(push,1)
typedef struct {
unsigned p00;
unsigned long long p04;
unsigned p12;
unsigned p16;
char p20;
char *p21;
} kol_struct70;
#pragma pack(pop)
int kol_file_70(kol_struct70 *k)
{
asm volatile ("int $0x40"::"a"(70), "b"(k));
}
bool dir_operations(unsigned char fun_num, char *path)
{
kol_struct70 inf;
inf.p00 = fun_num;
inf.p04 = 0;
inf.p12 = 0;
inf.p16 = 0;
inf.p20 = 0;
inf.p21 = path;
if(!kol_file_70(&inf)){
return true;
}
else {
return false;
}
}
int lsdir(const char* dir, short_file_info **list)
{
int num_of_file=0;
kol_struct70 inf;
inf.p00 = 1;
inf.p04 = 0;
inf.p12 = 2;
inf.p16 = (unsigned*) malloc(32+inf.p12*560);
inf.p20 = 0;
inf.p21 = dir;
if(kol_file_70(&inf))
{
free((void*)inf.p16);
return FS_ERROR;
}
num_of_file = *(unsigned*)(inf.p16+8);
inf.p12 = num_of_file;
free((void*)inf.p16);
inf.p16 = (unsigned) malloc(32+inf.p12*560);
*list = (short_file_info*)malloc(num_of_file*sizeof(short_file_info));
if(kol_file_70(&inf))
{
free((void*)inf.p16);
return FS_ERROR;
}
for(int i=0; i<num_of_file; i++)
{
(*list)[i].type = *(unsigned*)(inf.p16+32+(264+40)*i);
(*list)[i].name =(char*)(inf.p16+32+40+(264+40)*i);
}
return num_of_file;
}
char *getcwd(char *buf, unsigned size)
{
if(buf == NULL){
if((buf = malloc(size))==NULL)
{
return NULL;
}
}
__asm__ __volatile__(
"int $0x40"
::"a"(30),"b"(2),"c"(buf), "d"(size));
return(buf);
}
void setcwd(const char* cwd)
{
__asm__ __volatile__(
"int $0x40"
::"a"(30),"b"(1),"c"(cwd));
}
bool rmdir(const char* dir)
{
return dir_operations(8, dir);
}
bool mkdir(const char* dir)
{
return dir_operations(9, dir);
}