From 76b87c039ba8d20add4f52ba43f3471fd92e210b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 29 May 1997 12:06:58 +0000 Subject: Update. 1997-05-29 12:48 Ulrich Drepper * 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 * 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 * time/strftime.c: Correct/normalize indentation in cpp directives. 1997-05-28 20:43 Philip Blundell * nis/nis_error.c: Include 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 * math/cmathcalls.h: Correct typo in comment. * inet/netinet/icmp6.h: Include for in6_addr. * sysdeps/unix/sysv/linux/netinet/ip_fw.h: Include for IFNAMSIZ. * sysdeps/unix/sysv/linux/net/ppp_defs.h: Include for time_t. * login/pty.h: Include 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 * 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 . 1997-05-28 22:51 Ulrich Drepper * sysdeps/unix/Makefile (make-ioctls-CFLAGS): Use generic ttydefaults.h file instead of non-existing version in termios/sys. Reported by Zack Weinberg . * 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 . 1997-05-28 18:19 Philip Blundell * posix/execl.c: Include to avoid warning. 1997-05-27 18:19 Andreas Jaeger * 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 * sunrpc/rpc/svc.h (__dispatch_fn_t): New. (svc_register): Use __dispatch_fn_t in prototype. 1997-05-28 17:02 Ulrich Drepper * sysdeps/generic/bzero.c (bzero): Fix typo. Patch by Witek Wnuk . 1997-05-27 12:00 Andreas Jaeger * sysdeps/generic/vtimes.c: Use ISO C declaration style. * sysdeps/unix/bsd/ualarm.c: Include for prototype. * sysdeps/generic/memccpy.c: Include 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 * argp-help.c (argp_args_usage): Supply correct argp to filter_doc. 1997-05-27 17:51 Andreas Schwab * 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 * sysdeps/m68k/fpu/e_atan2.c: Fix missing negate. Use __m81_test instead of explicit comparisons. 1997-05-26 18:36 Andreas Schwab * inet/netinet/icmp6.h: Remove use of which has no place in a generic header and is no user include file. --- resolv/nss_dns/dns-host.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) (limited to 'resolv/nss_dns') diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c index 65a668e..19ca33e 100644 --- a/resolv/nss_dns/dns-host.c +++ b/resolv/nss_dns/dns-host.c @@ -342,6 +342,11 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int 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 NSS_STATUS_TRYAGAIN; + } result->h_name = bp; bp += n; linebuflen -= n; @@ -396,11 +401,16 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, /* Store alias. */ *ap++ = bp; n = strlen (bp) + 1; /* For the \0. */ + if (n >= MAXHOSTNAMELEN) + { + ++had_error; + continue; + } bp += n; linebuflen -= n; /* Get canonical name. */ n = strlen (tbuf) + 1; /* For the \0. */ - if ((size_t) n > buflen) + if ((size_t) n > buflen || n >= MAXHOSTNAMELEN) { ++had_error; continue; @@ -423,7 +433,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, cp += n; /* Get canonical name. */ n = strlen (tbuf) + 1; /* For the \0. */ - if ((size_t) n > buflen) + if ((size_t) n > buflen || n >= MAXHOSTNAMELEN) { ++had_error; continue; @@ -469,6 +479,11 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, if (n != -1) { n = strlen (bp) + 1; /* for the \0 */ + if (n >= MAXHOSTNAMELEN) + { + ++had_error; + break; + } bp += n; linebuflen -= n; } @@ -478,6 +493,11 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, if (_res.options & RES_USE_INET6) { n = strlen (bp) + 1; /* for the \0 */ + if (n >= MAXHOSTNAMELEN) + { + ++had_error; + break; + } bp += n; linebuflen -= n; map_v4v6_hostent (result, &bp, &linebuflen); @@ -549,8 +569,8 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, if (result->h_name == NULL) { n = strlen (qname) + 1; /* For the \0. */ - if (n > linebuflen) - goto try_again; + if (n > linebuflen || n >= MAXHOSTNAMELEN) + goto no_recovery; strcpy (bp, qname); /* Cannot overflow. */ result->h_name = bp; bp += n; @@ -562,7 +582,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, *h_errnop = NETDB_SUCCESS; return NSS_STATUS_SUCCESS; } -try_again: - *h_errnop = TRY_AGAIN; + no_recovery: + *h_errnop = NO_RECOVERY; return NSS_STATUS_TRYAGAIN; } -- cgit v1.1