This commit ties the new DSO code (crypto/dso/) into the build for a

variety of platforms. A few are missing, and they will be added in
eventually, but as this is new stuff, it was better to not break lots of
platforms in one go that we can't easily test. The changes to "Configure"
should illustrate how to add support to other systems if you feel like
having a go.

NB: I'll add something shortly to allow you to add "dlfcn.h" support on
those platforms that don't have (or need) a dlfcn.h header file. (The
symbol for Configure will probably by "dlfcn_no_h").

Thanks to Richard Levitte, who is responsible for the dso_dl.c support,
understanding the trickier aspects of the build process, and giving great
feedback on everything else.

[Don't use this stuff if you're easily offended by changes to the
interface or behaviour - it's still work in progress.]

PR:

5 files changed, 22 insertions, 14 deletions

diff --git a/crypto/err/Makefile.ssl b/crypto/err/Makefile.ssl
index e1bee09054..010b01d1bb 100644
--- a/crypto/err/Makefile.ssl
+++ b/crypto/err/Makefile.ssl
@@ -89,20 +89,20 @@ err_all.o: ../../include/openssl/blowfish.h ../../include/openssl/bn.h
 err_all.o: ../../include/openssl/buffer.h ../../include/openssl/cast.h
 err_all.o: ../../include/openssl/conf.h ../../include/openssl/crypto.h
 err_all.o: ../../include/openssl/des.h ../../include/openssl/dh.h
-err_all.o: ../../include/openssl/dsa.h ../../include/openssl/e_os2.h
-err_all.o: ../../include/openssl/err.h ../../include/openssl/evp.h
-err_all.o: ../../include/openssl/idea.h ../../include/openssl/lhash.h
-err_all.o: ../../include/openssl/md2.h ../../include/openssl/md5.h
-err_all.o: ../../include/openssl/mdc2.h ../../include/openssl/objects.h
-err_all.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
-err_all.o: ../../include/openssl/pem2.h ../../include/openssl/pkcs12.h
-err_all.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
-err_all.o: ../../include/openssl/rc2.h ../../include/openssl/rc4.h
-err_all.o: ../../include/openssl/rc5.h ../../include/openssl/ripemd.h
-err_all.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
-err_all.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
-err_all.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
-err_all.o: ../../include/openssl/x509v3.h
+err_all.o: ../../include/openssl/dsa.h ../../include/openssl/dso.h
+err_all.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
+err_all.o: ../../include/openssl/evp.h ../../include/openssl/idea.h
+err_all.o: ../../include/openssl/lhash.h ../../include/openssl/md2.h
+err_all.o: ../../include/openssl/md5.h ../../include/openssl/mdc2.h
+err_all.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
+err_all.o: ../../include/openssl/opensslv.h ../../include/openssl/pem2.h
+err_all.o: ../../include/openssl/pkcs12.h ../../include/openssl/pkcs7.h
+err_all.o: ../../include/openssl/rand.h ../../include/openssl/rc2.h
+err_all.o: ../../include/openssl/rc4.h ../../include/openssl/rc5.h
+err_all.o: ../../include/openssl/ripemd.h ../../include/openssl/rsa.h
+err_all.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
+err_all.o: ../../include/openssl/stack.h ../../include/openssl/x509.h
+err_all.o: ../../include/openssl/x509_vfy.h ../../include/openssl/x509v3.h
 err_prn.o: ../../include/openssl/bio.h ../../include/openssl/buffer.h
 err_prn.o: ../../include/openssl/crypto.h ../../include/openssl/e_os.h
 err_prn.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
diff --git a/crypto/err/err.c b/crypto/err/err.c
index eb8c76aa0b..cbbd326f74 100644
--- a/crypto/err/err.c
+++ b/crypto/err/err.c
@@ -155,6 +155,7 @@ static ERR_STRING_DATA ERR_str_libraries[]=
 {ERR_PACK(ERR_LIB_X509V3,0,0)		,"X509 V3 routines"},
 {ERR_PACK(ERR_LIB_PKCS12,0,0)		,"PKCS12 routines"},
 {ERR_PACK(ERR_LIB_RAND,0,0)		,"random number generator"},
+{ERR_PACK(ERR_LIB_DSO,0,0)		,"DSO support routines"},
 {0,NULL},
 	};
 
@@ -205,6 +206,7 @@ static ERR_STRING_DATA ERR_str_reasons[]=
 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE	,"expecting an asn1 sequence"},
 {ERR_R_ASN1_LENGTH_MISMATCH		,"asn1 length mismatch"},
 {ERR_R_MISSING_ASN1_EOS			,"missing asn1 eos"},
+{ERR_R_DSO_LIB				,"DSO lib"},
 
 {0,NULL},
 	};
diff --git a/crypto/err/err.h b/crypto/err/err.h
index 15bafbff43..35c4d97b76 100644
--- a/crypto/err/err.h
+++ b/crypto/err/err.h
@@ -123,6 +123,7 @@ typedef struct err_state_st
 #define ERR_LIB_X509V3		34
 #define ERR_LIB_PKCS12		35
 #define ERR_LIB_RAND		36
+#define ERR_LIB_DSO		37
 
 #define ERR_LIB_USER		128
 
@@ -151,6 +152,7 @@ typedef struct err_state_st
 #define X509V3err(f,r) ERR_PUT_error(ERR_LIB_X509V3,(f),(r),ERR_file_name,__LINE__)
 #define PKCS12err(f,r) ERR_PUT_error(ERR_LIB_PKCS12,(f),(r),ERR_file_name,__LINE__)
 #define RANDerr(f,r) ERR_PUT_error(ERR_LIB_RAND,(f),(r),ERR_file_name,__LINE__)
+#define DSOerr(f,r) ERR_PUT_error(ERR_LIB_DSO,(f),(r),ERR_file_name,__LINE__)
 
 /* Borland C seems too stupid to be able to shift and do longs in
  * the pre-processor :-( */
@@ -199,6 +201,7 @@ typedef struct err_state_st
 #define ERR_R_BIO_LIB	ERR_LIB_BIO
 #define ERR_R_PKCS7_LIB	ERR_LIB_PKCS7
 #define ERR_R_PKCS12_LIB ERR_LIB_PKCS12
+#define ERR_R_DSO_LIB	ERR_LIB_DSO
 
 /* fatal error */
 #define	ERR_R_MALLOC_FAILURE			(1|ERR_R_FATAL)
diff --git a/crypto/err/err_all.c b/crypto/err/err_all.c
index 10c463b389..638ed3fe71 100644
--- a/crypto/err/err_all.c
+++ b/crypto/err/err_all.c
@@ -82,6 +82,7 @@
 #include <openssl/pkcs12.h>
 #include <openssl/rand.h>
 #include <openssl/err.h>
+#include <openssl/dso.h>
 
 void ERR_load_crypto_strings(void)
 	{
@@ -118,5 +119,6 @@ void ERR_load_crypto_strings(void)
 	ERR_load_PKCS7_strings();
 	ERR_load_PKCS12_strings();
 	ERR_load_RAND_strings();
+	ERR_load_DSO_strings();
 #endif
 	}
diff --git a/crypto/err/openssl.ec b/crypto/err/openssl.ec
index e132ba3182..02deaa6fc9 100644
--- a/crypto/err/openssl.ec
+++ b/crypto/err/openssl.ec
@@ -3,6 +3,7 @@ L CRYPTO	crypto/crypto.h			crypto/cpt_err.c
 L BN		crypto/bn/bn.h			crypto/bn/bn_err.c
 L RSA		crypto/rsa/rsa.h		crypto/rsa/rsa_err.c
 L DSA		crypto/dsa/dsa.h		crypto/dsa/dsa_err.c
+L DSO		crypto/dso/dso.h		crypto/dso/dso_err.c
 L DH		crypto/dh/dh.h			crypto/dh/dh_err.c
 L EVP		crypto/evp/evp.h		crypto/evp/evp_err.c
 L BUF		crypto/buffer/buffer.h		crypto/buffer/buf_err.c