UnrealXR/raylib
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ADDED: LoadFileText() and SaveFileText()

Browse source 
Improved file access checks
This commit is contained in:
Ray 2020-03-04 00:21:46 +01:00
parent 6b8f30964d
commit 74c486201d
3 changed files with 157 additions and 82 deletions
Download patch file Download diff file Expand all files Collapse all files

128
src/utils.c
View file

@ -169,32 +169,36 @@ unsigned char *LoadFileData(const char *fileName, int *bytesRead)
unsigned char *data = NULL;
*bytesRead = 0;
FILE *file = fopen(fileName, "rb");
if (file != NULL)
if (fileName != NULL)
{
// WARNING: On binary streams SEEK_END could not be found,
// using fseek() and ftell() could not work in some (rare) cases
fseek(file, 0, SEEK_END);
int size = ftell(file);
fseek(file, 0, SEEK_SET);
FILE *file = fopen(fileName, "rb");
if (size > 0)
if (file != NULL)
{
data = (unsigned char *)RL_MALLOC(sizeof(unsigned char)*size);
// WARNING: On binary streams SEEK_END could not be found,
// using fseek() and ftell() could not work in some (rare) cases
fseek(file, 0, SEEK_END);
int size = ftell(file);
fseek(file, 0, SEEK_SET);
// NOTE: fread() returns number of read elements instead of bytes, so we read [1 byte, size elements]
int count = fread(data, sizeof(unsigned char), size, file);
*bytesRead = count;
if (size > 0)
{
data = (unsigned char *)RL_MALLOC(sizeof(unsigned char)*size);
if (count != size) TRACELOG(LOG_WARNING, "[%s] File partially loaded", fileName);
else TRACELOG(LOG_INFO, "[%s] File loaded successfully", fileName);
// NOTE: fread() returns number of read elements instead of bytes, so we read [1 byte, size elements]
int count = fread(data, sizeof(unsigned char), size, file);
*bytesRead = count;
if (count != size) TRACELOG(LOG_WARNING, "[%s] File partially loaded", fileName);
else TRACELOG(LOG_INFO, "[%s] File loaded successfully", fileName);
}
else TRACELOG(LOG_WARNING, "[%s] File could not be read", fileName);
fclose(file);
}
else TRACELOG(LOG_WARNING, "[%s] File could not be read", fileName);
fclose(file);
else TRACELOG(LOG_WARNING, "[%s] File could not be opened", fileName);
}
else TRACELOG(LOG_WARNING, "[%s] File could not be opened", fileName);
else TRACELOG(LOG_WARNING, "File name provided is not valid");
return data;
}
@ -202,18 +206,88 @@ unsigned char *LoadFileData(const char *fileName, int *bytesRead)
// Save data to file from buffer
void SaveFileData(const char *fileName, void *data, int bytesToWrite)
{
FILE *file = fopen(fileName, "wb");
if (file != NULL)
if (fileName != NULL)
{
int count = fwrite(data, sizeof(unsigned char), bytesToWrite, file);
FILE *file = fopen(fileName, "wb");
if (count == 0) TRACELOG(LOG_WARNING, "[%s] File could not be written", fileName);
else if (count != bytesToWrite) TRACELOG(LOG_WARNING, "[%s] File partially written", fileName);
if (file != NULL)
{
int count = fwrite(data, sizeof(unsigned char), bytesToWrite, file);
fclose(file);
if (count == 0) TRACELOG(LOG_WARNING, "[%s] File could not be written", fileName);
else if (count != bytesToWrite) TRACELOG(LOG_WARNING, "[%s] File partially written", fileName);
else TRACELOG(LOG_INFO, "[%s] File successfully saved", fileName);
fclose(file);
}
else TRACELOG(LOG_WARNING, "[%s] File could not be opened", fileName);
}
else TRACELOG(LOG_WARNING, "[%s] File could not be opened", fileName);
else TRACELOG(LOG_WARNING, "File name provided is not valid");
}
// Load text data from file, returns a '\0' terminated string
// NOTE: text chars array should be freed manually
char *LoadFileText(const char *fileName)
{
char *text = NULL;
if (fileName != NULL)
{
FILE *textFile = fopen(fileName, "rt");
if (textFile != NULL)
{
// WARNING: When reading a file as 'text' file,
// text mode causes carriage return-linefeed translation...
// ...but using fseek() should return correct byte-offset
fseek(textFile, 0, SEEK_END);
int size = ftell(textFile);
fseek(textFile, 0, SEEK_SET);
if (size > 0)
{
text = (char *)RL_MALLOC(sizeof(char)*(size + 1));
int count = fread(text, sizeof(char), size, textFile);
// WARNING: \r\n is converted to \n on reading, so,
// read bytes count gets reduced by the number of lines
if (count < size) text = RL_REALLOC(text, count + 1);
// Zero-terminate the string
text[count] = '\0';
TRACELOG(LOG_INFO, "[%s] Text file loaded successfully", fileName);
}
else TRACELOG(LOG_WARNING, "[%s] Text file could not be read", fileName);
fclose(textFile);
}
else TRACELOG(LOG_WARNING, "[%s] Text file could not be opened", fileName);
}
else TRACELOG(LOG_WARNING, "File name provided is not valid");
return text;
}
// Save text data to file (write), string must be '\0' terminated
void SaveFileText(const char *fileName, char *text)
{
if (fileName != NULL)
{
FILE *file = fopen(fileName, "wt");
if (file != NULL)
{
int count = fprintf(file, "%s", text);
if (count == 0) TRACELOG(LOG_WARNING, "[%s] Text file could not be written", fileName);
else TRACELOG(LOG_INFO, "[%s] Text file successfully saved", fileName);
fclose(file);
}
else TRACELOG(LOG_WARNING, "[%s] Text file could not be opened", fileName);
}
else TRACELOG(LOG_WARNING, "File name provided is not valid");
}
#if defined(PLATFORM_ANDROID)