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1998-05-28 00:53  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* glibcbug.in: Send to bugs@gnu or libc-alpha@cygnus depending
	on whether this is a stable release or not (keeps snapshot bug
	reports out of the database).

	* include/libc-symbols.h: Use __ASSEMBLER__ test macro not ASSEMBLER.
	* sysdeps/arm/sysdep.h: Likewise.
	* sysdeps/i386/sysdep.h: Likewise.
	* sysdeps/m68k/sysdep.h: Likewise.
	* sysdeps/mach/mips/sysdep.h: Likewise.
	* sysdeps/mach/sys/reboot.h: Likewise.
	* sysdeps/mach/sysdep.h: Likewise.
	* sysdeps/unix/alpha/sysdep.h: Likewise.
	* sysdeps/unix/bsd/hp/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/osf/alpha/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sequent/i386/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sony/newsos/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/sun/m68k/sysdep.h: Likewise.
	* sysdeps/unix/bsd/vax/sysdep.h: Likewise.
	* sysdeps/unix/i386/sysdep.h: Likewise.
	* sysdeps/unix/mips/sysdep.h: Likewise.
	* sysdeps/unix/sparc/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h: Likewise.

1998-05-27  Mark Kettenis  <kettenis@phys.uva.nl>

	* mach/Machrules: Use $(move-if-change).

1998-05-27  Mark Kettenis  <kettenis@phys.uva.nl>

	* Makeconfig [elf=yes] (+interp): New variable, set to interp.os.
	* Makerules (lib%.so): Depend on $(+interp).
	(libc.so): Add interp.os to list of dependencies.
	(interp-obj): Remove variable.
	* mach/Machrules (+interp): Define to empty since libhurduser and
	libmachuser don't need to have the interpreter set.

1998-05-28  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* resolv/res_send.c: Security fixes from bind 4.9.7-REL.

	* resolv/gethnamaddr.c: Likewise.

	* resolv/res_comp.c: Likewise.

1998-05-28  Mark Kettenis  <kettenis@phys.uva.nl>

	* sysdeps/mach/hurd/wait4.c (__wait4): Use ANSI-style definition
	so that transparent union works.
This commit is contained in:
Ulrich Drepper
1998-05-29 10:21:16 +00:00
parent f962d79247
commit 66715f834c
34 changed files with 892 additions and 318 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
resolv/gethnamaddr.c
View File

@@ -160,6 +160,24 @@ dprintf(msg, num)
# define dprintf(msg, num) /*nada*/
#endif
#define BOUNDED_INCR(x) \
do { \
cp += x; \
if (cp > eom) { \
__set_h_errno (NO_RECOVERY); \
return (NULL); \
} \
} while (0)
#define BOUNDS_CHECK(ptr, count) \
do { \
if ((ptr) + (count) > eom) { \
__set_h_errno (NO_RECOVERY); \
return (NULL); \
} \
} while (0)
static struct hostent *
getanswer(answer, anslen, qname, qtype)
const querybuf *answer;
@@ -170,7 +188,7 @@ getanswer(answer, anslen, qname, qtype)
register const HEADER *hp;
register const u_char *cp;
register int n;
const u_char *eom;
const u_char *eom, *erdata;
char *bp, **ap, **hap;
int type, class, buflen, ancount, qdcount;
int haveanswer, had_error;
@@ -201,7 +219,8 @@ getanswer(answer, anslen, qname, qtype)
qdcount = ntohs(hp->qdcount);
bp = hostbuf;
buflen = sizeof hostbuf;
cp = answer->buf + HFIXEDSZ;
cp = answer->buf;
BOUNDED_INCR(HFIXEDSZ);
if (qdcount != 1) {
__set_h_errno (NO_RECOVERY);
return (NULL);
@@ -211,7 +230,7 @@ getanswer(answer, anslen, qname, qtype)
__set_h_errno (NO_RECOVERY);
return (NULL);
}
cp += n + QFIXEDSZ;
BOUNDED_INCR(n + QFIXEDSZ);
if (qtype == T_A || qtype == T_AAAA) {
/* res_send() has already verified that the query name is the
* same as the one we sent; this just gets the expanded name
@@ -243,12 +262,15 @@ getanswer(answer, anslen, qname, qtype)
continue;
}
cp += n; /* name */
BOUNDS_CHECK(cp, 3 * INT16SZ + INT32SZ);
type = _getshort(cp);
cp += INT16SZ; /* type */
class = _getshort(cp);
cp += INT16SZ + INT32SZ; /* class, TTL */
n = _getshort(cp);
cp += INT16SZ; /* len */
BOUNDS_CHECK(cp, n);
erdata = cp + n;
if (class != C_IN) {
/* XXX - debug? syslog? */
cp += n;
@@ -263,6 +285,10 @@ getanswer(answer, anslen, qname, qtype)
continue;
}
cp += n;
if (cp != erdata) {
__set_h_errno (NO_RECOVERY);
return (NULL);
}
/* Store alias. */
*ap++ = bp;
n = strlen(bp) + 1; /* for the \0 */
@@ -291,6 +317,10 @@ getanswer(answer, anslen, qname, qtype)
continue;
}
cp += n;
if (cp != erdata) {
__set_h_errno (NO_RECOVERY);
return (NULL);
}
/* Get canonical name. */
n = strlen(tbuf) + 1; /* for the \0 */
if (n > buflen || n >= MAXHOSTNAMELEN) {
@@ -326,6 +356,10 @@ getanswer(answer, anslen, qname, qtype)
}
#if MULTI_PTRS_ARE_ALIASES
cp += n;
if (cp != erdata) {
__set_h_errno (NO_RECOVERY);
return (NULL);
}
if (!haveanswer)
host.h_name = bp;
else if (ap < &host_aliases[MAXALIASES-1])
@@ -397,6 +431,10 @@ getanswer(answer, anslen, qname, qtype)
bp += n;
buflen -= n;
cp += n;
if (cp != erdata) {
__set_h_errno (NO_RECOVERY);
return (NULL);
}
break;
default:
abort();