Patch Name: PHCO_9577 Patch Description: s700_800 10.20 libc cumulative patch Creation Date: 96/12/17 Post Date: 97/01/13 Hardware Platforms - OS Releases: s700: 10.20 s800: 10.20 Products: N/A Filesets: OS-Core.C-MIN OS-Core.CORE-SHLIBS ProgSupport.PROG-AUX ProgSupport.PROG-MIN Automatic Reboot?: No Status: General Superseded Critical: No (superseded patches were critical) PHCO_8108: CORRUPTION Path Name: /hp-ux_patches/s700_800/10.X/PHCO_9577 Symptoms: PHCO_9577: When customer runs command: setprivgrp -g LOCKRDONLY, the NIS system hangs. INDaa24394, SR5003320648. This fix was intended for PHCO_8979, but was inadvertently left out. PHCO_8979: The libc routine ulckpwdf always returns -1. As a result, the /etc/.pwd.lock can not be unlocked. DSDe431142, SR5003338038. Memory leak in globfree(). DSDe431962, SR5003344192. If given weekday is the same as today and within the last 7 days of the month, getdate() returns an Error 8. DSDe431143, SR1653185629. In non-C locales, non-blank lines would match pattern ^$ for regcomp(). DSDe431505 DSDe432126. User applications hit a limit of 1023 for number of sets in a message catalog. DSDe431644, SR5003341271. Call to tempnam(), mktemp() and mkstemp() sometimes returned a dangling symlink as the name for a temporary file. SR1653189134. The strptime and getdate calls did not handle two digit year specifications in the same manner. This has been addressed by providing strptime and getdate with an alternative behavior for dealing with two digit year specifications. In order to obtain the alternative behavior, which interprets two-digit year values in the range 66-99 to refer to the twentieth century and values in the range 00-68 to refer to the twenty-first century, the executable must link with the supplied object file, /usr/lib/year2000.o. Existing executables will continue to get the compatible behavior. DSDe430766, SR4701334763. If the ndots resolver option is configured in /etc/resolv.conf and res_init() is directly or indirectly called, a memory leak will occur. Applications using gethost*() API's or directly using resolver API's (res_*()) in a DNS environment are open to this problem. INDaa23823. The getdate() routine fails with a signal 11 segmentation violation when accessing a datemask file that contains a very large number of alternative date formats. DSDe429925, SR1653176883. PHCO_8764: Random truncaton of strings with strcat due to fix attempted in PHCO_8108. PHCO_8108: Significant performance degradation of regular expression processing in 10.X compared to 9.X. Affects awk, grep, sed, etc. Some printf variants available in patched 10.X systems weren't exported in 10.20. getcwd returns EINVAL when a negative buflen is passed in. memchr may core dump when char is not found. Sometimes strcat would attempt to access an unmapped page of memory. Defect Description: PHCO_9577: Problem is in yp_bind.c. The second function call to flock() has a syntax error in the parameter list. The first call to flock() is correct. When this command is given the second function call to flock() is in code which is only invoked when Talk2_binder() is called. Then it hangs. PHCO_8979: If you lock /etc/.pwd.lock using lckpwdf, there is no way to determine that it was unlock, because ulckpwdf always returns -1. Allocated memory was not properly free'd by globfree() after use. The day of the month was being improperly adjusted for the case when the day of the week matched today. Pattern map was set such that it would continue matching past end of pattern. The maximum number of message sets allowed in a message catalog was not high enough; it has been increased to 65535. The tempnam(), mktemp() and mkstemp() APIs did not check for a dangling symlink before returned it and this has been fixed now. The strptime and getdate calls were not consistent in the manner in which they handled two digit year specifications. res_init() leads to the processing of the ndots option. In processing the ndots value a routine was called that could generate a recursive loop back to res_init(). During the recursive loop a memory leak would be generated. The code has been redesigned to avoid this loop condition. When a very large template file is used, and the getdate() routine has to search far into the file to find a matching format specifier, getdate() overran the allocated array. PHCO_8764: The fix for strcat's page boundary problem caused truncation of some strings. PHCO_8108: Poor performance of 10.X regular expression processing in comparison to 9.X. The affected entry points were not exported properly. According to X/Open, getcwd takes a second argument of type of size_t and returns EINVAL only when the second argument is 0. memchr tries to read beyond end of valid memory when char is not found in thestring and may core dump. The strcat call didn't handle an optimized pre-fetching strategy properly, causing the read of bytes belonging to unmapped pages. SR: 4701309294 1653155929 1653169615 5003338038 5003344192 1653185629 5003341271 1653189134 4701334763 5003320648 1653176883 Patch Files: /usr/lib/libc.a /usr/lib/libp/libc.a /usr/lib/libpicc.a /usr/lib/libc.1 /usr/lib/year2000.o what(1) Output: /usr/lib/libc.a: PATCH/10.20:PHCO_9577 libc.a_ID@@/main/r10dav/libc_d av/libc_dav_cpe/6 /ux/libc/libs/libc/archive_pa1/libc.a_ID Dec 17 1996 14:16:33 /usr/lib/libp/libc.a: PATCH/10.20:PHCO_9577 libc.a_ID@@/main/r10dav/libc_d av/libc_dav_cpe/6 /ux/libc/libs/libc/profiled_pa1/libc.a_ID Dec 17 1996 15:09:17 /usr/lib/libpicc.a: PATCH/10.20:PHCO_9577 libc.1_ID@@/main/r10dav/libc_d av/libc_dav_cpe/6 /ux/libc/libs/libc/shared_pa1/libc.1_ID Dec 17 1996 14:39:09 /usr/lib/libc.1: PATCH/10.20:PHCO_9577 libc.1_ID@@/main/r10dav/libc_d av/libc_dav_cpe/6 /ux/libc/libs/libc/shared_pa1/libc.1_ID Dec 17 1996 14:39:09 /usr/lib/year2000.o: None cksum(1) Output: 1883796937 2383972 /usr/lib/libc.a 407749134 2565236 /usr/lib/libp/libc.a 2502677670 2562350 /usr/lib/libpicc.a 2606034444 1810432 /usr/lib/libc.1 902146649 704 /usr/lib/year2000.o Patch Conflicts: None Patch Dependencies: None Hardware Dependencies: None Other Dependencies: None Supersedes: PHCO_8108 PHCO_8764 PHCO_8979 Equivalent Patches: None Patch Package Size: 9170 Kbytes Installation Instructions: Please review all instructions and the Hewlett-Packard SupportLine User Guide or your Hewlett-Packard support terms and conditions for precautions, scope of license, restrictions, and, limitation of liability and warranties, before installing this patch. ------------------------------------------------------------ 1. Back up your system before installing a patch. 2. Login as root. 3. Copy the patch to the /tmp directory. 4. Move to the /tmp directory and unshar the patch: cd /tmp sh PHCO_9577 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHCO_9577.depot 5b. For a homogeneous NFS Diskless cluster run swcluster on the server to install the patch on the server and the clients: swcluster -i -b This will invoke swcluster in the interactive mode and force all clients to be shut down. WARNING: All cluster clients must be shut down prior to the patch installation. Installing the patch while the clients are booted is unsupported and can lead to serious problems. The swcluster command will invoke an swinstall session in which you must specify: alternate root path - default is /export/shared_root/OS_700 source depot path - /tmp/PHCO_9577.depot To complete the installation, select the patch by choosing "Actions -> Match What Target Has" and then "Actions -> Install" from the Menubar. 5c. For a heterogeneous NFS Diskless cluster: - run swinstall on the server as in step 5a to install the patch on the cluster server. - run swcluster on the server as in step 5b to install the patch on the cluster clients. By default swinstall will archive the original software in /var/adm/sw/patch/PHCO_9577. If you do not wish to retain a copy of the original software, you can create an empty file named /var/adm/sw/patch/PATCH_NOSAVE. Warning: If this file exists when a patch is installed, the patch cannot be deinstalled. Please be careful when using this feature. It is recommended that you move the PHCO_9577.text file to /var/adm/sw/patch for future reference. To put this patch on a magnetic tape and install from the tape drive, use the command: dd if=/tmp/PHCO_9577.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: None