94 lines
1.5 KiB
C
94 lines
1.5 KiB
C
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/* @(#)asize.c 1.4 */
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#define ushort unsigned short
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#include <stdio.h>
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#include "out.h"
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/*
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asize -- determine object size
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*/
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main(argc, argv)
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char **argv;
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{
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struct outhead buf;
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struct outsect sbuf;
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ushort nrsect;
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long sum;
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int gorp;
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FILE *f;
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if (--argc == 0) {
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argc = 1;
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argv[1] = "a.out";
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}
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gorp = argc;
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while(argc--) {
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if ((f = fopen(*++argv, "r"))==NULL) {
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fprintf(stderr, "asize: cannot open %s\n", *argv);
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continue;
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}
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getofmt ((char *)&buf, SF_HEAD , f);
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if(BADMAGIC(buf)) {
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fprintf(stderr, "asize: %s-- bad format\n", *argv);
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fclose(f);
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continue;
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}
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nrsect = buf.oh_nsect;
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if (nrsect == 0) {
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fprintf(stderr, "asize: %s-- no sections\n", *argv);
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fclose(f);
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continue;
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}
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if (gorp > 1)
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printf("%s: ", *argv);
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sum = 0;
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while (nrsect-- > 0) {
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getofmt ((char *)&sbuf, SF_SECT , f);
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printf("%ld", sbuf.os_size);
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sum += sbuf.os_size;
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if (nrsect > 0)
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putchar('+');
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}
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printf(" = %ld = 0x%lx\n", sum, sum);
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fclose(f);
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}
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}
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getofmt(p, s, f)
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register char *p;
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register char *s;
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register FILE *f;
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{
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register i;
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register long l;
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for (;;) {
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switch (*s++) {
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/* case '0': p++; continue; */
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case '1':
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*p++ = getc(f);
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continue;
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case '2':
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i = getc(f);
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i |= (getc(f) << 8);
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*((short *)p) = i; p += sizeof(short);
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continue;
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case '4':
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l = (long)getc(f);
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l |= ((long)getc(f) << 8);
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l |= ((long)getc(f) << 16);
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l |= ((long)getc(f) << 24);
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*((long *)p) = l; p += sizeof(long);
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continue;
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default:
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case '\0':
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break;
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}
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break;
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}
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}
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