Constification.

crypto/conf/conf.h

diff --git a/crypto/conf/conf.h b/crypto/conf/conf.h
index 882d75c..a0bbeb4 100644
--- a/crypto/conf/conf.h
+++ b/crypto/conf/conf.h
@@ -190,8 +190,8 @@
 
 char *CONF_get1_default_config_file(void);
 
-int CONF_parse_list(char *list, int sep, int nospc,
-		int (*list_cb)(char *elem, int len, void *usr), void *arg);
+int CONF_parse_list(const char *list, int sep, int nospc,
+	int (*list_cb)(const char *elem, int len, void *usr), void *arg);
 
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes

crypto/conf/conf_mod.c

diff --git a/crypto/conf/conf_mod.c b/crypto/conf/conf_mod.c
index 100d72e..23e1f19 100644
--- a/crypto/conf/conf_mod.c
+++ b/crypto/conf/conf_mod.c
@@ -557,11 +557,11 @@
  * be used to parse comma separated lists for example.
  */
 
-int CONF_parse_list(char *list, int sep, int nospc,
-		int (*list_cb)(char *elem, int len, void *usr), void *arg)
+int CONF_parse_list(const char *list, int sep, int nospc,
+	int (*list_cb)(const char *elem, int len, void *usr), void *arg)
 	{
 	int ret;
-	char *lstart, *tmpend, *p;
+	const char *lstart, *tmpend, *p;
 	lstart = list;
 
 	for(;;)

crypto/engine/eng_fat.c

diff --git a/crypto/engine/eng_fat.c b/crypto/engine/eng_fat.c
index e101530..d49aa7e 100644
--- a/crypto/engine/eng_fat.c
+++ b/crypto/engine/eng_fat.c
@@ -84,7 +84,7 @@
 
 /* Set default algorithms using a string */
 
-int int_def_cb(char *alg, int len, void *arg)
+int int_def_cb(const char *alg, int len, void *arg)
 	{
 	unsigned int *pflags = arg;
 	if (!strncmp(alg, "ALL", len))
@@ -107,7 +107,7 @@
 	}
 
 
-int ENGINE_set_default_string(ENGINE *e, char *list)
+int ENGINE_set_default_string(ENGINE *e, const char *list)
 	{
 	unsigned int flags = 0;
 	if (!CONF_parse_list(list, ',', 1, int_def_cb, &flags))

crypto/engine/engine.h

diff --git a/crypto/engine/engine.h b/crypto/engine/engine.h
index 1dcb53b..15fca9b 100644
--- a/crypto/engine/engine.h
+++ b/crypto/engine/engine.h
@@ -503,7 +503,7 @@
  * structure will have had its reference count up'd so the caller
  * should still free their own reference 'e'. */
 int ENGINE_set_default_RSA(ENGINE *e);
-int ENGINE_set_default_string(ENGINE *e, char *list);
+int ENGINE_set_default_string(ENGINE *e, const char *list);
 /* Same for the other "methods" */
 int ENGINE_set_default_DSA(ENGINE *e);
 int ENGINE_set_default_DH(ENGINE *e);