Constify PKCS12_create, PKCS12_add_key, PKCS12_add_safe.

Reviewed-by: NKurt Roeckx <kurt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1215)

crypto/pkcs12/p12_crt.c

@@ -28,7 +28,7 @@ static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
     return 1;
 }
 
-PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
+PKCS12 *PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert,
                       STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter,
                       int mac_iter, int keytype)
 {
@@ -170,7 +170,7 @@ PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
 
 PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
                                EVP_PKEY *key, int key_usage, int iter,
-                               int nid_key, char *pass)
+                               int nid_key, const char *pass)
 {
 
     PKCS12_SAFEBAG *bag = NULL;
@@ -203,7 +203,7 @@ PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
 }
 
 int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
-                    int nid_safe, int iter, char *pass)
+                    int nid_safe, int iter, const char *pass)
 {
     PKCS7 *p7 = NULL;
     int free_safes = 0;

doc/crypto/PKCS12_create.pod

@@ -8,8 +8,9 @@ PKCS12_create - create a PKCS#12 structure
 
  #include <openssl/pkcs12.h>
 
- PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert, STACK_OF(X509) *ca,
-                                int nid_key, int nid_cert, int iter, int mac_iter, int keytype);
+ PKCS12 *PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey,
+                       X509 *cert, STACK_OF(X509) *ca,
+                       int nid_key, int nid_cert, int iter, int mac_iter, int keytype);
 
 =head1 DESCRIPTION
 

include/openssl/pkcs12.h

@@ -188,16 +188,16 @@ DECLARE_ASN1_ITEM(PKCS12_AUTHSAFES)
 void PKCS12_PBE_add(void);
 int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert,
                  STACK_OF(X509) **ca);
-PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
-                      STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter,
-                      int mac_iter, int keytype);
+PKCS12 *PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, 
+                      X509 *cert, STACK_OF(X509) *ca, int nid_key, int nid_cert, 
+                      int iter, int mac_iter, int keytype);
 
 PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert);
 PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
                                EVP_PKEY *key, int key_usage, int iter,
-                               int key_nid, char *pass);
+                               int key_nid, const char *pass);
 int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
-                    int safe_nid, int iter, char *pass);
+                    int safe_nid, int iter, const char *pass);
 PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int p7_nid);
 
 int i2d_PKCS12_bio(BIO *bp, PKCS12 *p12);