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file.c
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file.c
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/* Copyright 2008-2022 Carsten Elton Sorensen
This file is part of ASMotor.
ASMotor is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ASMotor 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 ASMotor. If not, see <http://www.gnu.org/licenses/>.
*/
#include "file.h"
#include "strbuf.h"
#if defined(WIN32)
# define PATH_SEPARATOR '\\'
# define PATH_REPLACE '/'
#else
# define PATH_SEPARATOR '/'
# define PATH_REPLACE '\\'
#endif
size_t
fsize(FILE* fileHandle) {
fflush(fileHandle);
off_t currentOffset = ftello(fileHandle);
fseeko(fileHandle, 0, SEEK_END);
off_t size = ftello(fileHandle);
fseeko(fileHandle, currentOffset, SEEK_SET);
return (size_t) size;
}
void
fputll(uint32_t value, FILE* fileHandle) {
fputc(value & 0xFFu, fileHandle);
fputc((value >> 8u) & 0xFFu, fileHandle);
fputc((value >> 16u) & 0xFFu, fileHandle);
fputc((value >> 24u) & 0xFFu, fileHandle);
}
uint32_t
fgetll(FILE* fileHandle) {
uint32_t r;
r = (uint8_t) fgetc(fileHandle);
r |= (uint32_t) fgetc(fileHandle) << 8u;
r |= (uint32_t) fgetc(fileHandle) << 16u;
r |= (uint32_t) fgetc(fileHandle) << 24u;
return r;
}
void
fputbl(uint32_t value, FILE* fileHandle) {
fputc((value >> 24u) & 0xFFu, fileHandle);
fputc((value >> 16u) & 0xFFu, fileHandle);
fputc((value >> 8u) & 0xFFu, fileHandle);
fputc(value & 0xFFu, fileHandle);
}
uint32_t
fgetbl(FILE* fileHandle) {
uint32_t r;
r = (uint32_t) fgetc(fileHandle) << 24u;
r |= (uint32_t) fgetc(fileHandle) << 16u;
r |= (uint32_t) fgetc(fileHandle) << 8u;
r |= (uint8_t) fgetc(fileHandle);
return r;
}
uint16_t
fgetbw(FILE* fileHandle) {
uint16_t hi = (uint16_t) fgetc(fileHandle) << 8u;
return hi | (uint8_t) fgetc(fileHandle);
}
void
fputbw(uint16_t value, FILE* fileHandle) {
fputc((uint8_t) (value >> 8u), fileHandle);
fputc((uint8_t) value, fileHandle);
}
uint16_t
fgetlw(FILE* fileHandle) {
uint16_t lo = (uint16_t) fgetc(fileHandle);
return lo | (uint16_t) (fgetc(fileHandle) << 8u);
}
void
fputlw(uint16_t value, FILE* fileHandle) {
fputc((uint8_t) value, fileHandle);
fputc((uint8_t) (value >> 8u), fileHandle);
}
size_t
fgetsz(char* destination, size_t maxLength, FILE* fileHandle) {
size_t r = 0;
if (maxLength > 0) {
char ch;
do {
ch = *destination++ = (char) fgetc(fileHandle);
++r;
} while (r < maxLength && ch);
}
return r;
}
extern string*
fgetstr(FILE* fileHandle) {
string_buffer* buf = strbuf_Create();
while (true) {
int ch = fgetc(fileHandle);
if (ch == EOF || ch == 0)
break;
strbuf_AppendChar(buf, ch);
}
string* result = strbuf_String(buf);
strbuf_Free(buf);
return result;
}
extern void
fputsz(const char* str, FILE* fileHandle) {
while (*str) {
fputc(*str++, fileHandle);
}
fputc(0, fileHandle);
}
bool
fexists(const char* filename) {
FILE* fileHandle = fopen(filename, "rb");
if (fileHandle != NULL) {
fclose(fileHandle);
return true;
}
return false;
}
void
ffill(uint8_t value, size_t count, FILE* fileHandle) {
while (count--) {
fputc(value, fileHandle);
}
}
string*
#if defined(_DEBUG)
fcanonicalizePathDebug(string* path, const char* filename, int lineNumber) {
return str_ReplaceDebug(path, PATH_REPLACE, PATH_SEPARATOR, filename, lineNumber);
#else
fcanonicalizePath(string* path) {
return str_Replace(path, PATH_REPLACE, PATH_SEPARATOR);
#endif
}
string*
freplaceFileComponent(string* fullPath, string* fileName) {
if (fullPath == NULL)
return str_Copy(fileName);
const char* lastSlash = str_String(fullPath) + str_Length(fullPath) - 1;
while (lastSlash > str_String(fullPath) && *lastSlash != '/' && *lastSlash != '\\')
--lastSlash;
if (lastSlash == str_String(fullPath))
return str_Copy(fileName);
string* basePath = str_Slice(fullPath, 0, lastSlash + 1 - str_String(fullPath));
string* newFullPath = str_Concat(basePath, fileName);
str_Free(basePath);
string* fixedPath = fcanonicalizePath(newFullPath);
str_Free(newFullPath);
return fixedPath;
}