static void handle_phdr()

in contrib/elftoolchain/size/size.c [101:212]

• 99 lines of code
• 28 McCabe index (conditional complexity)

static void	handle_phdr(Elf *, GElf_Ehdr *, GElf_Phdr *, uint32_t,
		    const char *);
static void	show_version(void);
static void	sysv_header(const char *, Elf_Arhdr *);
static void	sysv_footer(void);
static void	sysv_calc(Elf *, GElf_Ehdr *, GElf_Shdr *);
static void	usage(void);
static void	tbl_new(int);
static void	tbl_print(const char *, int);
static void	tbl_print_num(uint64_t, enum radix_style, int);
static void	tbl_append(void);
static void	tbl_flush(void);

/*
 * size utility using elf(3) and gelf(3) API to list section sizes and
 * total in elf files. Supports only elf files (core dumps in elf
 * included) that can be opened by libelf, other formats are not supported.
 */
int
main(int argc, char **argv)
{
	int ch, r, rc;
	const char **files, *fn;

	rc = RETURN_OK;

	if (elf_version(EV_CURRENT) == EV_NONE)
		errx(EXIT_FAILURE, "ELF library initialization failed: %s",
		    elf_errmsg(-1));

	while ((ch = getopt_long(argc, argv, "ABVdhotx", size_longopts,
	    NULL)) != -1)
		switch((char)ch) {
		case 'A':
			style = STYLE_SYSV;
			break;
		case 'B':
			style = STYLE_BERKELEY;
			break;
		case 'V':
			show_version();
			break;
		case 'd':
			radix = RADIX_DECIMAL;
			break;
		case 'o':
			radix = RADIX_OCTAL;
			break;
		case 't':
			show_totals = 1;
			break;
		case 'x':
			radix = RADIX_HEX;
			break;
		case 0:
			switch (size_option) {
			case OPT_FORMAT:
				if (*optarg == 's' || *optarg == 'S')
					style = STYLE_SYSV;
				else if (*optarg == 'b' || *optarg == 'B')
					style = STYLE_BERKELEY;
				else {
					warnx("unrecognized format \"%s\".",
					      optarg);
					usage();
				}
				break;
			case OPT_RADIX:
				r = strtol(optarg, NULL, 10);
				if (r == 8)
					radix = RADIX_OCTAL;
				else if (r == 10)
					radix = RADIX_DECIMAL;
				else if (r == 16)
					radix = RADIX_HEX;
				else {
					warnx("unsupported radix \"%s\".",
					      optarg);
					usage();
				}
				break;
			default:
				err(EXIT_FAILURE, "Error in option handling.");
				/*NOTREACHED*/
			}
			break;
		case 'h':
		case '?':
		default:
			usage();
			/* NOTREACHED */
		}
	argc -= optind;
	argv += optind;

	files = (argc == 0) ? default_args : (void *) argv;

	while ((fn = *files) != NULL) {
		rc = handle_elf(fn);
		if (rc != RETURN_OK)
			warnx(rc == RETURN_NOINPUT ?
			      "'%s': No such file" :
			      "%s: File format not recognized", fn);
		files++;
	}
	if (style == STYLE_BERKELEY) {
		if (show_totals)
			berkeley_totals();
		tbl_flush();
	}
        return (rc);
}