156 lines
2.5 KiB
C
156 lines
2.5 KiB
C
/* esize: prints info from e.out header
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*/
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#include <stdio.h>
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#ifndef MAGIC
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#define MAGIC 07255
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#endif MAGIC
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FILE *load_fp;
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int eof;
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/* Much of the code has been borrowed from the EM interpreter
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*/
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typedef unsigned long ptr; /* pointer to EM adress */
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long magic;
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long flags;
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long uref;
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long version;
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long wsize;
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long psize;
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long int7;
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long int8;
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long ntext;
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long ndata;
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long nproc;
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long entrypoint;
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long nline;
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long szdata;
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long ptr7;
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long ptr8;
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main(argc, argv)
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int argc;
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char *argv[];
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{
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printf("TPFCRE uref vers w/p text nproc szdata\n");
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if (argc == 1) {
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esize("e.out");
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}
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else {
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while (argc > 1) {
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esize(argv[1]);
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argc--, argv++;
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}
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}
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exit(0);
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}
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esize(fname)
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char *fname;
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{
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eof = 0;
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if (!rd_open(fname)) {
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printf("%s: cannot open\n", fname);
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}
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else {
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if (!rd_header()) {
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printf("%s: not EM object format\n", fname);
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}
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else {
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printf("%c", flags&0001 ? 'T' : '-');
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printf("%c", flags&0002 ? 'P' : '-');
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printf("%c", flags&0004 ? 'F' : '-');
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printf("%c", flags&0010 ? 'C' : '-');
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printf("%c", flags&0020 ? 'R' : '-');
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printf("%c", flags&0040 ? 'E' : '-');
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printf("%c", flags&0100 ? '?' : ' ');
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printf("%c", flags&0200 ? '?' : ' ');
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printf("%3ld ", uref);
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printf("%3ld ", version);
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printf("%1ld/%1ld", wsize, psize);
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printf("%c", int7 ? '?' : ' ');
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printf("%c", int8 ? '?' : ' ');
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printf("%5ld ", ntext);
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printf("%5ld ", nproc);
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printf("%6ld", szdata);
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printf("%c", ptr7 ? '?' : ' ');
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printf("%c", ptr8 ? '?' : ' ');
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printf("%s\n", fname);
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}
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rd_close();
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}
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}
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#define btol(a) ((long)(((long) (a)) & 0xFF))
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int
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rd_open(load_file)
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char *load_file;
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{
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return (load_fp = fopen(load_file, "r")) != NULL;
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}
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int
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rd_byte()
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{
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int i;
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if ((i = fgetc(load_fp)) == EOF)
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eof = 1;
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return (i);
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}
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long
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rd_int(n)
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long n;
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{
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long l;
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register int i;
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l = btol(rd_byte());
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for (i = 1; i < n; i++)
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l = l | (btol(rd_byte()) << (long) (i*8));
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return (l);
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}
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#define rd_ptr() ((ptr) rd_int(psize))
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int
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rd_header()
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{
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magic = rd_int(2L);
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if (magic != MAGIC || eof)
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return 0;
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flags = rd_int(2L);
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uref = rd_int(2L);
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version = rd_int(2L);
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wsize = rd_int(2L);
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psize = rd_int(2L);
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int7 = rd_int(2L); /* Entry 7 is unused */
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int8 = rd_int(2L); /* Entry 8 is unused */
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ntext = rd_ptr();
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ndata = rd_ptr();
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nproc = rd_ptr();
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entrypoint = rd_ptr();
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nline = rd_ptr();
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szdata = rd_ptr();
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ptr7 = rd_ptr(); /* entry 7 is unused */
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ptr8 = rd_ptr(); /* entry 8 is unused */
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return !eof;
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}
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rd_close()
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{
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fclose(load_fp);
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}
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