FreeCalypso > hg > freecalypso-tools
view target-utils/libtiffs/cmd_find.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 | 87cb03b35f77 |
children |
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line source
#include <sys/types.h> #include "types.h" void cmd_find(argbulk) char *argbulk; { char *argv[2]; int stat, cont; u8 *start; size_t size; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; stat = tiffs_find_file(argv[0], &start, &size, &cont); if (stat < 0) return; printf("chunk @%08X size %x\n", (u32)start, (u32)size); while (cont) { stat = tiffs_get_segment(cont, &start, &size, &cont); if (stat < 0) return; printf("chunk @%08X size %x\n", (u32)start, (u32)size); } }