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diff -up vim82/src/config.h.in.fips-warning vim82/src/config.h.in
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--- vim82/src/config.h.in.fips-warning 2021-03-01 12:20:20.887162181 +0100
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+++ vim82/src/config.h.in 2021-03-01 12:20:42.520977438 +0100
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@@ -499,3 +499,12 @@
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/* Define if _SC_SIGSTKSZ is available via sysconf() */
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#undef HAVE_SYSCONF_SIGSTKSZ
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+
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+/* Do we need FIPS warning? */
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+#undef HAVE_FIPS_WARNING
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+
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+/* Link to system-fips file */
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+#undef SYSTEM_FIPS_FILE_LINK
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+
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+/* Link to fips_enabled file */
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+#undef FIPS_ENABLED_FILE_LINK
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diff -up vim82/src/configure.ac.fips-warning vim82/src/configure.ac
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--- vim82/src/configure.ac.fips-warning 2021-03-01 12:20:20.885162198 +0100
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+++ vim82/src/configure.ac 2021-03-01 12:20:20.888162173 +0100
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@@ -541,6 +541,38 @@ else
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AC_MSG_RESULT(yes)
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fi
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+dnl Checking if we want FIPS warning
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+
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+AC_MSG_CHECKING(--enable-fips-warning)
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+AC_ARG_ENABLE([fips-warning],
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+ AS_HELP_STRING([--enable-fips-warning], [Enable FIPS warning]),
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+ ,[enable_fips_warning="no"])
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+
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+if test "$enable_fips_warning" = "yes"; then
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+ AC_MSG_RESULT(yes)
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+ AC_DEFINE([HAVE_FIPS_WARNING])
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+
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+ dnl Setting path for system-fips file
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+
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+ AC_MSG_CHECKING(--with-system-fips-file argument)
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+ AC_ARG_WITH([system-fips-file], [ --with-system-fips-file=PATH Link to system-fips file (default: /etc/system-fips)],
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+ with_system_fips_file=$withval,
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+ with_system_fips_file="/etc/system-fips")
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+ AC_MSG_RESULT([$with_system_fips_file])
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+ AC_DEFINE_UNQUOTED([SYSTEM_FIPS_FILE_LINK], ["$with_system_fips_file"])
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+
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+ dnl Setting link to fips_enabled file
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+
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+ AC_MSG_CHECKING(--with-fips-enabled-file argument)
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+ AC_ARG_WITH([fips-enabled-file], [ --with-fips-enabled-file=PATH Link to fibs_enabled file (default: /proc/sys/crypto/fips_enabled)],
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+ with_fips_enabled_file=$withval,
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+ with_fips_enabled_file="/proc/sys/crypto/fips_enabled")
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+ AC_MSG_RESULT([$with_fips_enabled_file])
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+ AC_DEFINE_UNQUOTED([FIPS_ENABLED_FILE_LINK], ["$with_fips_enabled_file"])
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+else
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+ AC_MSG_RESULT(no)
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+fi
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+
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dnl Check for Lua feature.
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AC_MSG_CHECKING(--enable-luainterp argument)
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AC_ARG_ENABLE(luainterp,
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diff -up vim82/src/crypt.c.fips-warning vim82/src/crypt.c
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--- vim82/src/crypt.c.fips-warning 2021-03-01 12:13:11.000000000 +0100
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+++ vim82/src/crypt.c 2021-03-01 12:20:20.888162173 +0100
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@@ -523,6 +523,21 @@ crypt_check_method(int method)
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msg_scroll = TRUE;
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msg(_("Warning: Using a weak encryption method; see :help 'cm'"));
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}
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+#ifdef HAVE_FIPS_WARNING
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+ FILE *fips_enable_fd = fopen(FIPS_ENABLED_FILE_LINK, "r");
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+ if (fips_enable_fd == NULL)
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+ return;
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+
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+ int enabled = fgetc(fips_enable_fd);
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+
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+ if ( access(SYSTEM_FIPS_FILE_LINK, F_OK) != -1 && enabled == '1')
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+ {
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+ msg_scroll = TRUE;
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+ msg(_("Warning: This cryptography is not FIPS 140-2 compliant."));
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+ }
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+
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+ fclose(fips_enable_fd);
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+#endif
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}
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void
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