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authorUlrich Drepper <drepper@redhat.com>1997-05-29 12:06:58 +0000
committerUlrich Drepper <drepper@redhat.com>1997-05-29 12:06:58 +0000
commit76b87c039ba8d20add4f52ba43f3471fd92e210b (patch)
tree08c6a1bc32f699056a97f2683bc859cb0d7f6871 /resolv/gethnamaddr.c
parent06bdbaa0a614c256b34214fde7c395f9e0a6206c (diff)
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Update.
1997-05-29 12:48 Ulrich Drepper <drepper@cygnus.com> * io/ftw.c: Complete rewrite. Add implementation of `nftw'. * io/ftw.h: Update for new implementation and XPG4.2. * login/Makefile: Update for UTMP daemon implementation. Update resolver code to bind-4.9.6-T1A. * resolv/Banner: Update. * nss/digits_dots.c: Adapt text address matching to T1A. * nss/nss_files/files-hosts.c: Always use inet_pton. * resolv/base64.c (b64_pton): Follow T1A but don't use this code since it would lead to warnings. * resolv/gethnamaddr.c (getanswer): Test host name for maximal length at several places. * resolv/inet_net_pton.c (inet_net_pton_ipv4): Correct typo in comment. * resolv/res_comp.c (dn_expand): Check for overflow. (dn_comp): Likewise. * resolv/res_debug.c (precsize_aton): Better implementation. * resolv/res_init.c (res_init): Make `buf' of size MAXDNAME. * resolv/res_send.c (res_send): Check for overflow in descriptor set. * resolv/nss_dns/dns-host.c (getanswer_r): Test host name for maximal length at several places. 1997-05-29 12:51 Mark Kettenis <kettenis@phys.uva.nl> * login/utmp-private.h (struct utfuncs): Add one more parameter to updwtmp function. Declare all three function jump tables. * login/utmp.h: Declare __utmpname. * login/getutent_r.c: Remove db backend and provide support for utmpd backend. * login/login.c: Use `updwtmp' function insteead of writing the record ourself. * login/logwtmp.c: Move `updwtmp' function to... * login/updwtmp.c: ...here. New file. * login/utmp_db.h: Removed. * login/utmp_file.c: Add updwtmp function to write to file. * login/utmp_daemon.c: New file. Daemon backend. * login/utmpname.c: New file. Implementation of utmpname function. * login/utmpdump.c: New file. Tool to dump utmp-like files. * login/utmpd/connection.c: New file. * login/utmpd/database.c: New file. * login/utmpd/error.c: New file. * login/utmpd/request.c: New file. * login/utmpd/utmpd-private.h: New file. * login/utmpd/utmpd.c: New file. * login/utmpd/utmpd.h: New file. * login/utmpd/xtmp.c: New file. * login/utmpd/xtmp.h: New file. 1997-05-29 12:28 Jim Meyering <meyering@eng.ascend.com> * time/strftime.c: Correct/normalize indentation in cpp directives. 1997-05-28 20:43 Philip Blundell <pjb27@cam.ac.uk> * nis/nis_error.c: Include <string.h> to fix warning. * nis/nis_print.c: Likewise. * nis/nss_nisplus/nisplus-hosts.c: Arg 3 of map_v4v6_hostent is int* not size_t*. 1997-05-28 21:56 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/cmathcalls.h: Correct typo in comment. * inet/netinet/icmp6.h: Include <netinet/in.h> for in6_addr. * sysdeps/unix/sysv/linux/netinet/ip_fw.h: Include <net/if.h> for IFNAMSIZ. * sysdeps/unix/sysv/linux/net/ppp_defs.h: Include <time.h> for time_t. * login/pty.h: Include <ioctl-types.h> for definition of struct winsize. * misc/regexp.h (compile): Correct typo. * argp/argp.h: Put extern before __const in defintion of argp_program_bug_address. 1997-05-29 00:20 Ulrich Drepper <drepper@cygnus.com> * sysdeps/wordsize-32/inttypes.h: Correct names of unsigned fast and least types. Correct names of ?INT_FAST*_{MIN,MAX} macros. * sysdeps/wordsize-64/inttypes.h: Likewise. Reported by Andreas Jaeger <aj@arthur.rhein-neckar.de>. 1997-05-28 22:51 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/Makefile (make-ioctls-CFLAGS): Use generic ttydefaults.h file instead of non-existing version in termios/sys. Reported by Zack Weinberg <zack@rabi.phys.columbia.edu>. * time/strptime.c (strptime_internal, case 'Y'): Restrict year number to four digits and to representable range for 4 byte time_t values. Patch by H.J. Lu <hjl@lucon.org>. 1997-05-28 18:19 Philip Blundell <pjb27@cam.ac.uk> * posix/execl.c: Include <alloca.h> to avoid warning. 1997-05-27 18:19 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/libm-test.c: Implement testing of inlined functions, make output nicer, update comments. * math/test-idouble.c: New file. Frontend for double tests of inlined functions. * math/test-ildoubl.c: New file. Frontend for long double tests of inlined functions. * math/test-ifloat.c: New file. Frontend for float tests of inlined functions. * math/test-longdouble.c: Rename to... * math/test-ldouble.c: ...this. * math/Makefile: Add rules for new test programs, change rules for renaming of longdouble test. 1997-05-20 15:50 H.J. Lu <hjl@gnu.ai.mit.edu> * sunrpc/rpc/svc.h (__dispatch_fn_t): New. (svc_register): Use __dispatch_fn_t in prototype. 1997-05-28 17:02 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/bzero.c (bzero): Fix typo. Patch by Witek Wnuk <spider@pest.waw.ids.edu.pl>. 1997-05-27 12:00 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/generic/vtimes.c: Use ISO C declaration style. * sysdeps/unix/bsd/ualarm.c: Include <unistd.h> for prototype. * sysdeps/generic/memccpy.c: Include <string.h> for prototype. * signal/tst-signal.c (handler): Correct function declaration to avoid warning. * stdlib/testsort.c (compare): Likewise. * string/tester.c: Likewise. 1997-05-27 14:16 Miles Bader <miles@gnu.ai.mit.edu> * argp-help.c (argp_args_usage): Supply correct argp to filter_doc. 1997-05-27 17:51 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * db/hash/extern.h, db/hash/hash.c, db/hash/hash.h, db/hash/hash_log2.c: Rename __log2 to __hash_log2 to avoid clash with libm. 1997-05-27 14:47 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/e_atan2.c: Fix missing negate. Use __m81_test instead of explicit comparisons. 1997-05-26 18:36 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * inet/netinet/icmp6.h: Remove use of <asm/bitops.h> which has no place in a generic header and is no user include file.
Diffstat (limited to 'resolv/gethnamaddr.c')
-rw-r--r--resolv/gethnamaddr.c44
1 files changed, 26 insertions, 18 deletions
diff --git a/resolv/gethnamaddr.c b/resolv/gethnamaddr.c
index 114875b..f2def79 100644
--- a/resolv/gethnamaddr.c
+++ b/resolv/gethnamaddr.c
@@ -212,6 +212,10 @@ getanswer(answer, anslen, qname, qtype)
* (i.e., with the succeeding search-domain tacked on).
*/
n = strlen(bp) + 1; /* for the \0 */
+ if (n >= MAXHOSTNAMELEN) {
+ __set_h_errno (NO_RECOVERY);
+ return (NULL);
+ }
host.h_name = bp;
bp += n;
buflen -= n;
@@ -256,11 +260,15 @@ getanswer(answer, anslen, qname, qtype)
/* Store alias. */
*ap++ = bp;
n = strlen(bp) + 1; /* for the \0 */
+ if (n >= MAXHOSTNAMELEN) {
+ had_error++;
+ continue;
+ }
bp += n;
buflen -= n;
/* Get canonical name. */
n = strlen(tbuf) + 1; /* for the \0 */
- if (n > buflen) {
+ if (n > buflen || n >= MAXHOSTNAMELEN) {
had_error++;
continue;
}
@@ -272,14 +280,14 @@ getanswer(answer, anslen, qname, qtype)
}
if (qtype == T_PTR && type == T_CNAME) {
n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
- if ((n < 0) || !res_hnok(tbuf)) {
+ if (n < 0 || !res_hnok(tbuf)) {
had_error++;
continue;
}
cp += n;
/* Get canonical name. */
n = strlen(tbuf) + 1; /* for the \0 */
- if (n > buflen) {
+ if (n > buflen || n >= MAXHOSTNAMELEN) {
had_error++;
continue;
}
@@ -320,6 +328,10 @@ getanswer(answer, anslen, qname, qtype)
n = -1;
if (n != -1) {
n = strlen(bp) + 1; /* for the \0 */
+ if (n >= MAXHOSTNAMELEN) {
+ had_error++;
+ break;
+ }
bp += n;
buflen -= n;
}
@@ -328,6 +340,10 @@ getanswer(answer, anslen, qname, qtype)
host.h_name = bp;
if (_res.options & RES_USE_INET6) {
n = strlen(bp) + 1; /* for the \0 */
+ if (n >= MAXHOSTNAMELEN) {
+ had_error++;
+ break;
+ }
bp += n;
buflen -= n;
map_v4v6_hostent(&host, &bp, &buflen);
@@ -395,8 +411,8 @@ getanswer(answer, anslen, qname, qtype)
# endif /*RESOLVSORT*/
if (!host.h_name) {
n = strlen(qname) + 1; /* for the \0 */
- if (n > buflen)
- goto try_again;
+ if (n > buflen || n >= MAXHOSTNAMELEN)
+ goto no_recovery;
strcpy(bp, qname);
host.h_name = bp;
bp += n;
@@ -407,8 +423,8 @@ getanswer(answer, anslen, qname, qtype)
__set_h_errno (NETDB_SUCCESS);
return (&host);
}
- try_again:
- __set_h_errno (TRY_AGAIN);
+ no_recovery:
+ __set_h_errno (NO_RECOVERY);
return (NULL);
}
@@ -508,13 +524,12 @@ gethostbyname2(name, af)
if (!isdigit(*cp) && *cp != '.')
break;
}
- if (isxdigit(name[0]) || name[0] == ':')
+ if ((isxdigit(name[0]) && strchr(name, ':') != NULL) ||
+ name[0] == ':')
for (cp = name;; ++cp) {
if (!*cp) {
if (*--cp == '.')
break;
- if (!strchr(name, ':'))
- break;
/*
* All-IPv6-legal, no dot at the end.
* Fake up a hostent as if we'd actually
@@ -719,8 +734,7 @@ _gethtent()
if (!(cp = strpbrk(p, " \t")))
goto again;
*cp++ = '\0';
- if ((_res.options & RES_USE_INET6) &&
- inet_pton(AF_INET6, p, host_addr) > 0) {
+ if (inet_pton(AF_INET6, p, host_addr) > 0) {
af = AF_INET6;
len = IN6ADDRSZ;
} else if (inet_pton(AF_INET, p, host_addr) > 0) {
@@ -757,12 +771,6 @@ _gethtent()
*cp++ = '\0';
}
*q = NULL;
- if (_res.options & RES_USE_INET6) {
- char *bp = hostbuf;
- int buflen = sizeof hostbuf;
-
- map_v4v6_hostent(&host, &bp, &buflen);
- }
__set_h_errno (NETDB_SUCCESS);
return (&host);
}