int
sdluio_read (SDL_RWops *context, void *ptr, int size, int maxnum) {
size_t numRead;
numRead = uio_fread (ptr, (size_t) size, (size_t) maxnum,
(uio_Stream *) context->hidden.unknown.data1);
if (numRead == 0 && uio_ferror ((uio_Stream *)
context->hidden.unknown.data1))
{
SDL_SetError ("Error reading from uio_Stream: %s",
strerror(errno));
return 0;
}
return (int) numRead;
}
int
sdluio_write (SDL_RWops *context, const void *ptr, int size, int num) {
size_t numWritten;
numWritten = uio_fwrite (ptr, (size_t) size, (size_t) num,
(uio_Stream *) context->hidden.unknown.data1);
if (numWritten == 0 && uio_ferror ((uio_Stream *)
context->hidden.unknown.data1))
{
SDL_SetError ("Error writing to uio_Stream: %s",
strerror(errno));
return 0;
}
return (size_t) numWritten;
}
static int
debugCmdFwriteTest(DebugContext *debugContext, int argc, char *argv[]) {
uio_Stream *stream;
const char testString[] = "0123456789\n";
if (argc != 2) {
fprintf(debugContext->err, "Invalid number of arguments.\n");
return 1;
}
stream = uio_fopen(debugContext->cwd, argv[1], "w+b");
if (stream == NULL) {
fprintf(debugContext->err, "Could not open file: %s\n",
strerror(errno));
goto err;
}
if (uio_fwrite(testString, strlen(testString), 1, stream) != 1) {
fprintf(debugContext->err, "uio_fwrite() failed: %s\n",
strerror(errno));
goto err;
}
if (uio_fputs(testString, stream) == EOF) {
fprintf(debugContext->err, "uio_fputs() failed: %s\n",
strerror(errno));
goto err;
}
if (uio_fseek(stream, 15, SEEK_SET) != 0) {
fprintf(debugContext->err, "uio_fseek() failed: %s\n",
strerror(errno));
goto err;
}
if (uio_fputc('A', stream) != 'A') {
fprintf(debugContext->err, "uio_fputc() failed: %s\n",
strerror(errno));
goto err;
}
if (uio_fseek(stream, 0, SEEK_SET) != 0) {
fprintf(debugContext->err, "uio_fseek() failed: %s\n",
strerror(errno));
goto err;
}
{
char buf[6];
char *ptr;
int i;
i = 1;
while (1) {
ptr = uio_fgets(buf, sizeof buf, stream);
if (ptr == NULL)
break;
fprintf(debugContext->out, "%d: [%s]\n", i, ptr);
i++;
}
if (uio_ferror(stream)) {
fprintf(debugContext->err, "uio_fgets() failed: %s\n",
strerror(errno));
goto err;
}
uio_clearerr(stream);
}
if (uio_fseek(stream, 4, SEEK_END) != 0) {
fprintf(debugContext->err, "uio_fseek() failed: %s\n",
strerror(errno));
goto err;
}
{
char buf[2000];
memset(buf, 'Q', sizeof buf);
if (uio_fwrite(buf, 100, 20, stream) != 20) {
fprintf(debugContext->err, "uio_fwrite() failed: %s\n",
strerror(errno));
goto err;
}
}
if (uio_fseek(stream, 5, SEEK_SET) != 0) {
fprintf(debugContext->err, "uio_fseek() failed: %s\n",
strerror(errno));
goto err;
}
if (uio_fputc('B', stream) != 'B') {
fprintf(debugContext->err, "uio_fputc() failed: %s\n",
strerror(errno));
goto err;
}
uio_fclose(stream);
return 0;
err:
uio_fclose(stream);
return 1;
}