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Add file_size fail check for +2GB files

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This commit is contained in:
bnnm 2018-08-02 17:17:58 +02:00
parent 492f43a554
commit 5dc8d55c7f
1 changed files with 16 additions and 9 deletions
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25
src/streamfile.c
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@ -143,19 +143,14 @@ static STREAMFILE *open_stdio(STDIOSTREAMFILE *streamFile,const char * const fil
}
static STREAMFILE * open_stdio_streamfile_buffer_by_file(FILE *infile,const char * const filename, size_t buffersize) {
uint8_t * buffer;
STDIOSTREAMFILE * streamfile;
uint8_t * buffer = NULL;
STDIOSTREAMFILE * streamfile = NULL;
buffer = calloc(buffersize,1);
if (!buffer) {
return NULL;
}
if (!buffer) goto fail;
streamfile = calloc(1,sizeof(STDIOSTREAMFILE));
if (!streamfile) {
free(buffer);
return NULL;
}
if (!streamfile) goto fail;
streamfile->sf.read = (void*)read_stdio;
streamfile->sf.get_size = (void*)get_size_stdio;
@ -175,7 +170,19 @@ static STREAMFILE * open_stdio_streamfile_buffer_by_file(FILE *infile,const char
fseeko(streamfile->infile,0,SEEK_END);
streamfile->filesize = ftello(streamfile->infile);
/* some compilers/flags may use ftell, which only handles up to ~2.14GB
* (possible for banks like FSB, though unlikely). */
if (streamfile->filesize == 0xFFFFFFFF) { /* -1 on error */
VGM_LOG("STREAMFILE: ftell error\n");
goto fail; /* can be ignored but may result in strange/unexpected behaviors */
}
return &streamfile->sf;
fail:
free(buffer);
free(streamfile);
return NULL;
}
static STREAMFILE * open_stdio_streamfile_buffer(const char * const filename, size_t buffersize) {