Add recallocarray

5 files changed, 20 insertions, 1 deletions

diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 99670f8..cda4fb3 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -691,6 +691,11 @@ if(NOT HAVE_REALLOCARRAY)
         set(EXTRA_EXPORT ${EXTRA_EXPORT} reallocarray)
 endif()
 
+if(NOT HAVE_RECALLOCARRAY)
+        set(CRYPTO_SRC ${CRYPTO_SRC} compat/recallocarray.c)
+        set(EXTRA_EXPORT ${EXTRA_EXPORT} recallocarray)
+endif()
+
 if(NOT HAVE_STRCASECMP)
         set(CRYPTO_SRC ${CRYPTO_SRC} compat/strcasecmp.c)
         set(EXTRA_EXPORT ${EXTRA_EXPORT} strcasecmp)
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 23aaeac..78f3dd8 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -93,6 +93,10 @@ if !HAVE_REALLOCARRAY
 libcompat_la_SOURCES += compat/reallocarray.c
 endif
 
+if !HAVE_RECALLOCARRAY
+libcompat_la_SOURCES += compat/recallocarray.c
+endif
+
 if !HAVE_TIMINGSAFE_MEMCMP
 libcompat_la_SOURCES += compat/timingsafe_memcmp.c
 endif
diff --git a/include/compat/stdlib.h b/include/compat/stdlib.h
index 781be77..11f82ba 100644
--- a/include/compat/stdlib.h
+++ b/include/compat/stdlib.h
@@ -29,6 +29,10 @@ uint32_t arc4random_uniform(uint32_t upper_bound);
 void *reallocarray(void *, size_t, size_t);
 #endif
 
+#ifndef HAVE_RECALLOCARRAY
+void *recallocarray(void *, size_t, size_t, size_t);
+#endif
+
 #ifndef HAVE_STRTONUM
 long long strtonum(const char *nptr, long long minval,
                 long long maxval, const char **errstr);
diff --git a/m4/check-libc.m4 b/m4/check-libc.m4
index c66364e..22f0b35 100644
--- a/m4/check-libc.m4
+++ b/m4/check-libc.m4
@@ -3,7 +3,8 @@ AC_DEFUN([CHECK_LIBC_COMPAT], [
 AC_CHECK_HEADERS([err.h readpassphrase.h])
 # Check for general libc functions
 AC_CHECK_FUNCS([asprintf inet_ntop inet_pton memmem readpassphrase])
-AC_CHECK_FUNCS([reallocarray strlcat strlcpy strndup strnlen strsep strtonum])
+AC_CHECK_FUNCS([reallocarray recallocarray])
+AC_CHECK_FUNCS([strlcat strlcpy strndup strnlen strsep strtonum])
 AC_CHECK_FUNCS([timegm _mkgmtime])
 AM_CONDITIONAL([HAVE_ASPRINTF], [test "x$ac_cv_func_asprintf" = xyes])
 AM_CONDITIONAL([HAVE_INET_NTOP], [test "x$ac_cv_func_inet_ntop" = xyes])
@@ -11,6 +12,7 @@ AM_CONDITIONAL([HAVE_INET_PTON], [test "x$ac_cv_func_inet_pton" = xyes])
 AM_CONDITIONAL([HAVE_MEMMEM], [test "x$ac_cv_func_memmem" = xyes])
 AM_CONDITIONAL([HAVE_READPASSPHRASE], [test "x$ac_cv_func_readpassphrase" = xyes])
 AM_CONDITIONAL([HAVE_REALLOCARRAY], [test "x$ac_cv_func_reallocarray" = xyes])
+AM_CONDITIONAL([HAVE_RECALLOCARRAY], [test "x$ac_cv_func_recallocarray" = xyes])
 AM_CONDITIONAL([HAVE_STRLCAT], [test "x$ac_cv_func_strlcat" = xyes])
 AM_CONDITIONAL([HAVE_STRLCPY], [test "x$ac_cv_func_strlcpy" = xyes])
 AM_CONDITIONAL([HAVE_STRNDUP], [test "x$ac_cv_func_strndup" = xyes])
@@ -177,6 +179,9 @@ fi
 if test "x$ac_cv_func_reallocarray" = "xno" ; then
         echo reallocarray >> $crypto_p_sym
 fi
+if test "x$ac_cv_func_recallocarray" = "xno" ; then
+        echo recallocarray >> $crypto_p_sym
+fi
 if test "x$ac_cv_func_strlcat" = "xno" ; then
         echo strlcat >> $crypto_p_sym
 fi
diff --git a/update.sh b/update.sh
index dbb9b60..6fb1da7 100755
--- a/update.sh
+++ b/update.sh
@@ -78,6 +78,7 @@ for i in crypto/compat libtls-standalone/compat; do
             $libc_src/crypt/chacha_private.h \
             $libc_src/net/inet_pton.c \
             $libc_src/stdlib/reallocarray.c \
+            $libc_src/stdlib/recallocarray.c \
             $libc_src/string/explicit_bzero.c \
             $libc_src/string/strcasecmp.c \
             $libc_src/string/strlcpy.c \