FreeCalypso > hg > freecalypso-tools
view ringtools/imy/main.c @ 965:2969032bdfac
fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing
The only 100% safe way to pass a NULL pointer as a function argument
in K&R C is to cast 0 to a pointer type; failing to do so may cause
mysterious bugs (invalid stack frames or garbage in argument registers)
on 64-bit machines. This issue has already been fixed in most of
FC host tools, but I just found some missed spots: passing of NULL UDH
to PDU encoding functions in fcup-smsend[mult] in the case of single
(not concatenated) SMS.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 01 Sep 2023 07:33:51 +0000 |
parents | a96cb97b66a2 |
children |
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/* * This file contains the top-level code for fc-imy2pwt. */ #include <stdio.h> #include <stdlib.h> #include "sizelimits.h" char *imy_filename; char melody_str_buf[MELODY_BUF_SIZE]; unsigned beats_per_min = 120; FILE *outF; main(argc, argv) char **argv; { if (argc < 2 || argc > 3) { fprintf(stderr, "usage: %s imy-file [outfile]\n", argv[0]); exit(1); } imy_filename = argv[1]; read_imy_firstpass(); compute_note_durations(); if (argc > 2) { outF = fopen(argv[2], "w"); if (!outF) { perror(argv[2]); exit(1); } } else outF = stdout; melody_convert_pass(); exit(0); }