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Made to work if BYTES_REVERSED and/or WORDS_REVERSED are not defined

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This commit is contained in:
ceriel 1991-01-18 09:54:56 +00:00
parent 36e47ad79b
commit 8322e2d5d3
4 changed files with 49 additions and 64 deletions
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8
modules/src/object/object.h
View file

@ -13,6 +13,14 @@
#define Xchar(ch) ((ch) & 0377)
#endif
#if ! defined(BYTES_REVERSED)
#define BYTES_REVERSED 1
#endif
#if ! defined(WORDS_REVERSED)
#define WORDS_REVERSED 1
#endif
#if BYTES_REVERSED
#define uget2(c) (Xchar((c)[0]) | ((unsigned) Xchar((c)[1]) << 8))
#define Xput2(i, c) (((c)[0] = (i)), ((c)[1] = (i) >> 8))

20
modules/src/object/rd.c
View file

@ -155,23 +155,21 @@ rd_sect(sect, cnt)
while (cnt--) {
sect--;
#if ! (BYTES_REVERSED || WORDS_REVERSED)
if (sizeof(struct outsect) != SZ_SECT) {
if (sizeof(struct outsect) != SZ_SECT)
#endif
c -= 4; sect->os_lign = get4(c);
c -= 4; sect->os_flen = get4(c);
c -= 4; sect->os_foff = get4(c);
#if ! (BYTES_REVERSED || WORDS_REVERSED)
{
c -= 4; sect->os_lign = get4(c);
c -= 4; sect->os_flen = get4(c);
c -= 4; sect->os_foff = get4(c);
}
#endif
offset[--offcnt] = sect->os_foff + rd_base;
#if ! (BYTES_REVERSED || WORDS_REVERSED)
if (sizeof(struct outsect) != SZ_SECT) {
if (sizeof(struct outsect) != SZ_SECT)
#endif
c -= 4; sect->os_size = get4(c);
c -= 4; sect->os_base = get4(c);
#if ! (BYTES_REVERSED || WORDS_REVERSED)
{
c -= 4; sect->os_size = get4(c);
c -= 4; sect->os_base = get4(c);
}
#endif
}
}

49
modules/src/object/rd_arhdr.c
View file

@ -10,39 +10,26 @@ int
rd_arhdr(fd, arhdr)
register struct ar_hdr *arhdr;
{
#if WORDS_REVERSED && ! BYTES_REVERSED
if (sizeof (struct ar_hdr) != AR_TOTAL)
#endif
{
char buf[AR_TOTAL];
register char *c = buf;
register char *p = arhdr->ar_name;
register int i;
char buf[AR_TOTAL];
register char *c = buf;
register char *p = arhdr->ar_name;
register int i;
i = read(fd, c, AR_TOTAL);
if (i == 0) return 0;
if (i != AR_TOTAL) {
rd_fatal();
}
i = 14;
while (i--) {
*p++ = *c++;
}
arhdr->ar_date = ((long) get2(c)) << 16; c += 2;
arhdr->ar_date |= ((long) get2(c)) & 0xffff; c += 2;
arhdr->ar_uid = *c++;
arhdr->ar_gid = *c++;
arhdr->ar_mode = get2(c); c += 2;
arhdr->ar_size = (long) get2(c) << 16; c += 2;
arhdr->ar_size |= (long) get2(c) & 0xffff;
i = read(fd, c, AR_TOTAL);
if (i == 0) return 0;
if (i != AR_TOTAL) {
rd_fatal();
}
#if WORDS_REVERSED && !BYTES_REVERSED
else {
register int i;
i = read(fd, (char *) arhdr, AR_TOTAL);
if (i == 0) return 0;
if (i != AR_TOTAL) rd_fatal();
i = 14;
while (i--) {
*p++ = *c++;
}
#endif
arhdr->ar_date = ((long) get2(c)) << 16; c += 2;
arhdr->ar_date |= ((long) get2(c)) & 0xffff; c += 2;
arhdr->ar_uid = *c++;
arhdr->ar_gid = *c++;
arhdr->ar_mode = get2(c); c += 2;
arhdr->ar_size = (long) get2(c) << 16; c += 2;
arhdr->ar_size |= (long) get2(c) & 0xffff;
return 1;
}

36
modules/src/object/wr_arhdr.c
View file

@ -9,28 +9,20 @@
wr_arhdr(fd, arhdr)
register struct ar_hdr *arhdr;
{
#if WORDS_REVERSED && !BYTES_REVERSED
if (sizeof (struct ar_hdr) != AR_TOTAL)
#endif
{
char buf[AR_TOTAL];
register char *c = buf;
register char *p = arhdr->ar_name;
register int i = 14;
char buf[AR_TOTAL];
register char *c = buf;
register char *p = arhdr->ar_name;
register int i = 14;
while (i--) {
*c++ = *p++;
}
put2((int)(arhdr->ar_date>>16),c); c += 2;
put2((int)(arhdr->ar_date),c); c += 2;
*c++ = arhdr->ar_uid;
*c++ = arhdr->ar_gid;
put2(arhdr->ar_mode,c); c += 2;
put2((int)(arhdr->ar_size>>16),c); c += 2;
put2((int)(arhdr->ar_size),c);
wr_bytes(fd, buf, (long) AR_TOTAL);
while (i--) {
*c++ = *p++;
}
#if WORDS_REVERSED && !BYTES_REVERSED
else wr_bytes(fd, (char *) arhdr, (long) AR_TOTAL);
#endif
put2((int)(arhdr->ar_date>>16),c); c += 2;
put2((int)(arhdr->ar_date),c); c += 2;
*c++ = arhdr->ar_uid;
*c++ = arhdr->ar_gid;
put2(arhdr->ar_mode,c); c += 2;
put2((int)(arhdr->ar_size>>16),c); c += 2;
put2((int)(arhdr->ar_size),c);
wr_bytes(fd, buf, (long) AR_TOTAL);
}