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// Copyright (c) 2015 YamaArashi
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <errno.h>
#include <limits.h>
#include "global.h"
#include "util.h"
bool ParseNumber(char *s, char **end, int radix, int *intValue)
{
char *localEnd;
if (end == NULL)
end = &localEnd;
errno = 0;
const long longValue = strtol(s, end, radix);
if (*end == s)
return false; // not a number
if ((longValue == LONG_MIN || longValue == LONG_MAX) && errno == ERANGE)
return false;
if (longValue > INT_MAX)
return false;
if (longValue < INT_MIN)
return false;
*intValue = (int)longValue;
return true;
}
char *GetFileExtension(char *path)
{
char *extension = path;
while (*extension != 0)
extension++;
while (extension > path && *extension != '.')
extension--;
return extension;
}
char *GetFileExtensionAfterDot(char *path)
{
char *extension = GetFileExtension(path);
if (extension == path)
return NULL;
extension++;
if (*extension == 0)
return NULL;
return extension;
}
unsigned char *ReadWholeFile(char *path, int *size)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
fseek(fp, 0, SEEK_END);
*size = ftell(fp);
unsigned char *buffer = malloc(*size);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for reading \"%s\".\n", path);
rewind(fp);
if (fread(buffer, *size, 1, fp) != 1)
FATAL_ERROR("Failed to read \"%s\".\n", path);
fclose(fp);
return buffer;
}
unsigned char *ReadWholeFileZeroPadded(char *path, int *size, int padAmount)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
fseek(fp, 0, SEEK_END);
*size = ftell(fp);
unsigned char *buffer = calloc(*size + padAmount, 1);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for reading \"%s\".\n", path);
rewind(fp);
if (fread(buffer, *size, 1, fp) != 1)
FATAL_ERROR("Failed to read \"%s\".\n", path);
fclose(fp);
return buffer;
}
void WriteWholeFile(char *path, void *buffer, int bufferSize)
{
FILE *fp = fopen(path, "wb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
if (fwrite(buffer, bufferSize, 1, fp) != 1)
FATAL_ERROR("Failed to write to \"%s\".\n", path);
fclose(fp);
}
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