int GioMemoryFileSnapshotCtor(struct GioMemoryFileSnapshot *self,
const char *filename) {
FILE *iop;
struct stat stbuf;
char *buffer;
((struct Gio *) self)->vtbl = (struct GioVtbl *) NULL;
if (0 == (iop = fopen(filename, "rb"))) {
return 0;
}
if (fstat(fileno(iop), &stbuf) == -1) {
abort0:
fclose(iop);
return 0;
}
if (0 == (buffer = malloc(stbuf.st_size))) {
goto abort0;
}
if (fread(buffer, 1, stbuf.st_size, iop) != (size_t) stbuf.st_size) {
abort1:
free(buffer);
goto abort0;
}
if (GioMemoryFileCtor(&self->base, buffer, stbuf.st_size) == 0) {
goto abort1;
}
(void) fclose(iop);
((struct Gio *) self)->vtbl = &kGioMemoryFileSnapshotVtbl;
return 1;
}
char* NaClInstStateInstructionToString(struct NaClInstState* state) {
/* Print to a memory buffer, and then duplicate. */
struct GioMemoryFile filemem;
struct Gio *file = (struct Gio*) &filemem;
char buffer[MAX_INST_TEXT_SIZE];
char* result;
/* Note: Be sure to leave an extra byte to add the null character to
* the end of the string.
*/
GioMemoryFileCtor(&filemem, buffer, MAX_INST_TEXT_SIZE - 1);
NaClInstStateInstPrint(file, state);
buffer[filemem.curpos < MAX_INST_TEXT_SIZE
? filemem.curpos : MAX_INST_TEXT_SIZE] ='\0';
result = strdup(buffer);
GioMemoryFileDtor(file);
return result;
}
/* Print out the given instruction, using the given instruction print function,
* and return the printed text as a (malloc allocated) string.
*/
static char* InstToStringConvert(const NCDecoderInst* dinst,
inst_print_fn print_fn) {
/* Print to a memory buffer, and then duplicate. */
struct GioMemoryFile filemem;
struct Gio *file = (struct Gio*) &filemem;
char buffer[MAX_INST_TEXT_SIZE];
char* result;
/* Note: Be sure to leave an extra byte to add the null character to
* the end of the string.
*/
GioMemoryFileCtor(&filemem, buffer, MAX_INST_TEXT_SIZE - 1);
print_fn(dinst, file);
buffer[filemem.curpos < MAX_INST_TEXT_SIZE
? filemem.curpos : MAX_INST_TEXT_SIZE] ='\0';
result = strdup(buffer);
GioMemoryFileDtor(file);
return result;
}
