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configure: warn on invalid ca bundle or path

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- Warn if --with-ca-bundle file does not exist.

- Warn if --with-ca-path directory does not contain certificates.

- Improve help messages for both.

Example configure output:

  ca cert bundle:   /some/file   (warning: certs not found)
  ca cert path:     /some/dir   (warning: certs not found)

Bug: https://github.com/curl/curl/issues/404
Reported-by: Jeffrey Walton
This commit is contained in:
Jay Satiro 2016-02-25 01:55:38 -05:00
parent 46bf7996f4
commit 3ae77f079a
2 changed files with 38 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
acinclude.m4
View File

@ -2570,7 +2570,8 @@ AC_DEFUN([CURL_CHECK_CA_BUNDLE], [
AC_MSG_CHECKING([default CA cert bundle/path])
AC_ARG_WITH(ca-bundle,
AC_HELP_STRING([--with-ca-bundle=FILE], [File name to use as CA bundle])
AC_HELP_STRING([--with-ca-bundle=FILE],
[Path to a file containing CA certificates (example: /etc/ca-bundle.crt)])
AC_HELP_STRING([--without-ca-bundle], [Don't use a default CA bundle]),
[
want_ca="$withval"
@ -2580,7 +2581,11 @@ AC_HELP_STRING([--without-ca-bundle], [Don't use a default CA bundle]),
],
[ want_ca="unset" ])
AC_ARG_WITH(ca-path,
AC_HELP_STRING([--with-ca-path=DIRECTORY], [Directory to use as CA path])
AC_HELP_STRING([--with-ca-path=DIRECTORY],
[Path to a directory containing CA certificates stored individually, with \
their filenames in a hash format. This option can be used with OpenSSL, \
GnuTLS and PolarSSL backends. Refer to OpenSSL c_rehash for details. \
(example: /etc/certificates)])
AC_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
[
want_capath="$withval"
@ -2590,6 +2595,10 @@ AC_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
],
[ want_capath="unset"])
ca_warning=" (warning: certs not found)"
capath_warning=" (warning: certs not found)"
check_capath=""
if test "x$want_ca" != "xno" -a "x$want_ca" != "xunset" -a \
"x$want_capath" != "xno" -a "x$want_capath" != "xunset"; then
dnl both given
@ -2638,12 +2647,7 @@ AC_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
fi
if test "x$want_capath" = "xunset" -a "x$ca" = "xno" -a \
"x$OPENSSL_ENABLED" = "x1"; then
for a in /etc/ssl/certs/; do
if test -d "$a" && ls "$a"/[[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]].0 >/dev/null 2>/dev/null; then
capath="$a"
break
fi
done
check_capath="/etc/ssl/certs/"
fi
else
dnl no option given and cross-compiling
@ -2651,6 +2655,30 @@ AC_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
fi
fi
if test "x$ca" = "xno" || test -f "$ca"; then
ca_warning=""
fi
if test "x$capath" != "xno"; then
check_capath="$capath"
fi
if test ! -z "$check_capath"; then
for a in "$check_capath"; do
if test -d "$a" && ls "$a"/[[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]].0 >/dev/null 2>/dev/null; then
if test "x$capath" = "xno"; then
capath="$a"
fi
capath_warning=""
break
fi
done
fi
if test "x$capath" = "xno"; then
capath_warning=""
fi
if test "x$ca" != "xno"; then
CURL_CA_BUNDLE='"'$ca'"'
AC_DEFINE_UNQUOTED(CURL_CA_BUNDLE, "$ca", [Location of default ca bundle])

4
configure.ac
View File

@ -3891,8 +3891,8 @@ AC_MSG_NOTICE([Configured to build curl/libcurl:
--libcurl option: ${curl_libcurl_msg}
Verbose errors: ${curl_verbose_msg}
SSPI support: ${curl_sspi_msg}
ca cert bundle: ${ca}
ca cert path: ${capath}
ca cert bundle: ${ca}${ca_warning}
ca cert path: ${capath}${capath_warning}
ca fallback: ${with_ca_fallback}
LDAP support: ${curl_ldap_msg}
LDAPS support: ${curl_ldaps_msg}