view modules/getaddrinfo @ 37246:5cfb3a67238d

regex: avoid glibc deadlock during configure glibc has a known bug where certain corruptions of the heap can cause malloc to default to printing a debug message that includes a backtrace, but the act of getting the backtrace uses dlopen which in turn calls into malloc, causing a recursive lock ending in deadlock. Thus, when configure is probing for a known glibc heap corruption bug, the overall configure would hang. The solution suggested by glibc developers is to force malloc to quit printing debug messages, which avoids recursive malloc. * m4/regex.m4 (gl_REGEX): Avoid recursive malloc deadlock when glibc bug 15078 in turn triggers bug 16159. Reported by Michal Privoznik. Signed-off-by: Eric Blake <eblake@redhat.com>
author Eric Blake <eblake@redhat.com>
date Tue, 03 Dec 2013 10:34:13 -0700
parents a09d55da04d3
children 22e5bc9336ee
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Description:
getaddrinfo() function: Get address information.

Files:
lib/getaddrinfo.c
lib/gai_strerror.c
m4/getaddrinfo.m4

Depends-on:
netdb
sys_socket
extensions
gettext-h       [test $HAVE_GETADDRINFO = 0 || test $HAVE_DECL_GAI_STRERROR = 0 || test $REPLACE_GAI_STRERROR = 1]
inet_ntop       [test $HAVE_GETADDRINFO = 0]
snprintf        [test $HAVE_GETADDRINFO = 0]
stdbool         [test $HAVE_GETADDRINFO = 0]
strdup          [test $HAVE_GETADDRINFO = 0]
servent         [test $HAVE_GETADDRINFO = 0]
hostent         [test $HAVE_GETADDRINFO = 0]
sockets         [test $HAVE_GETADDRINFO = 0]

configure.ac:
gl_GETADDRINFO
if test $HAVE_GETADDRINFO = 0; then
  AC_LIBOBJ([getaddrinfo])
fi
if test $HAVE_DECL_GAI_STRERROR = 0 || test $REPLACE_GAI_STRERROR = 1; then
  AC_LIBOBJ([gai_strerror])
fi
gl_NETDB_MODULE_INDICATOR([getaddrinfo])

Makefile.am:

Include:
<netdb.h>

Link:
$(GETADDRINFO_LIB)

License:
LGPLv2+

Maintainer:
Simon Josefsson