compare_result compare(FILE *fp1, FILE *fp2, int brief)
{
// NOTE!!
// This code is meant to be simple so I take shortcuts like
// exiting without cleaning up. Sorry.
char buf1[39], buf2[8]; // these sizes are totally arbitrary
scanstate ssrec, *ss=&ssrec;
int n, cont;
scanstate_init(ss, buf1, sizeof(buf1));
readfp_attach(ss, fp1);
compare_attach(ss);
do {
n = fread(buf2, 1, sizeof(buf2), fp2);
if(n <= 0) {
if(ferror(fp2)) {
fprintf(stderr, "Error reading second file.\n");
exit(17);
}
if(feof(fp2)) {
break;
}
}
cont = compare_continue(ss, buf2, n);
if(cont < 0) {
fprintf(stderr, "Error reading first file.\n");
exit(17);
}
} while(cont == 0);
return brief ? compare_check(ss) : compare_check_newlines(ss);
}
void compare_section_start(struct test *test,
scanstate *cmpscan, int fd,
const char *sectionname)
{
// rewind the file
if(lseek(fd, 0, SEEK_SET) < 0) {
test_abort(test, "compare_section_start lseek compare: %s\n",
strerror(errno));
}
scanstate_reset(cmpscan);
readfd_attach(cmpscan, fd);
compare_attach(cmpscan);
// we may want to check the token to see if there are any
// special requests (like detabbing).
}
