VMS specific preprocessor symbol checking adjustments

Make usage of calloc()'s arguments consistent with rest of code base

Constantine Sapuntzakis patch for hostip.c

No need for a separate variable ndns.

The memory leak detection will detect code that fails to release a dns reference.

The DEBUG

Constantine Sapuntzakis patch for hostip.c

No need for a separate variable ndns.

The memory leak detection will detect code that fails to release a dns reference.

The DEBUGASSERT will detect code that releases too many references.

show more ...

Make hostip.c compile again

- Constantine Sapuntzakis posted bug #2891595
(http://curl.haxx.se/bug/view.cgi?id=2891595) which identified how an entry
in the DNS cache would linger too long if the request that added

- Constantine Sapuntzakis posted bug #2891595
(http://curl.haxx.se/bug/view.cgi?id=2891595) which identified how an entry
in the DNS cache would linger too long if the request that added it was in
use that long. He also provided the patch that now makes libcurl capable of
still doing a request while the DNS hash entry may get timed out.

show more ...

- Peter Sylvester made a debug featuer for Curl_resolv() that now will force
libcurl to resolve 'localhost' whatever name you use in the URL *if* you set
the --interface option to (exactl

- Peter Sylvester made a debug featuer for Curl_resolv() that now will force
libcurl to resolve 'localhost' whatever name you use in the URL *if* you set
the --interface option to (exactly) "LocalHost". This will enable us to
write tests for custom hosts names but still use a local host server.

show more ...

libcurl's memory.h renamed to curl_memory.h

Moved potential inclusion of system's malloc.h and memory.h header files to
setup_once.h. Inclusion of each header file is based on the definition of
NEED_MALLOC_H and NEED_MEMORY_H respecti

Moved potential inclusion of system's malloc.h and memory.h header files to
setup_once.h. Inclusion of each header file is based on the definition of
NEED_MALLOC_H and NEED_MEMORY_H respectively.

show more ...

Merged existing IPv4 and IPv6 Curl_ip2addr functions into a single one
which now also takes a protocol address family argument.

Use our Curl_addrinfo definition even when an addrinfo struct is available.

Use a wrapper function to call system's getaddrinfo().

*** empty log message ***

fix compiler warning

attempt to fix or allow further detection of an elusive icc SIGSEGV

attempt to fix compiler warning relative to potential misaligned data access

Removed a line of dead code (discovered by Coverity)

protect against 'use after free' or race condition

fix compiler warning

OOM condition fix

attempt to fix or allow further detection of an elusive icc SIGSEGV

attempt to fix or allow further detection of an elusive icc SIGSEGV

fix another error introduced in previously mentioned commit

fix error introduced in previous commit

take 2 at fixing compiler warning: argument might be clobbered by `longjmp' or `vfork'

fix compiler warning: `variable' might be clobbered by `longjmp' or `vfork'

Fixed some compiler warnings with gcc