Remove libssl dependancy and always use sha1.c code

Apparently there are license issues with openssl, so
just use sha1.c always.   This means we can get rid of
SHA1.c

Signed-off-by: Neil Brown <neilb@suse.de>

Makefile

@@ -32,7 +32,6 @@
 TCC = tcc
 UCLIBC_GCC = $(shell for nm in i386-uclibc-linux-gcc i386-uclibc-gcc; do which $$nm > /dev/null && { echo $$nm ; exit; } ; done; echo false No uclibc found )
 DIET_GCC = diet gcc
-LDLIBS=-lssl
 
 KLIBC=/home/src/klibc/klibc-0.77
 
@@ -67,15 +66,15 @@ MAN8DIR = $(MANDIR)/man8
 
 OBJS =  mdadm.o config.o mdstat.o  ReadMe.o util.o Manage.o Assemble.o Build.o \
 	Create.o Detail.o Examine.o Grow.o Monitor.o dlink.o Kill.o Query.o \
-	mdopen.o super0.o super1.o bitmap.o restripe.o sysfs.o
+	mdopen.o super0.o super1.o bitmap.o restripe.o sysfs.o sha1.o
 SRCS =  mdadm.c config.c mdstat.c  ReadMe.c util.c Manage.c Assemble.c Build.c \
 	Create.c Detail.c Examine.c Grow.c Monitor.c dlink.c Kill.c Query.c \
-	mdopen.c super0.c super1.c bitmap.c restripe.c sysfs.c
+	mdopen.c super0.c super1.c bitmap.c restripe.c sysfs.c sha1.c
 
-STATICSRC = SHA1.c sha1.c pwgr.c
+STATICSRC = pwgr.c
-STATICOBJS = SHA1.o sha1.o pwgr.o
+STATICOBJS = pwgr.o
 
-ASSEMBLE_SRCS := mdassemble.c Assemble.c config.c dlink.c util.c super0.c super1.c
+ASSEMBLE_SRCS := mdassemble.c Assemble.c config.c dlink.c util.c super0.c super1.c sha1.c
 ASSEMBLE_FLAGS:= $(CFLAGS) -DMDASSEMBLE
 ifdef MDASSEMBLE_AUTO
 ASSEMBLE_SRCS += mdopen.c mdstat.c
@@ -139,8 +138,6 @@ $(OBJS) : mdadm.h bitmap.h
 
 sha1.o : sha1.c sha1.h md5.h
 	$(CC) $(CFLAGS) -DHAVE_STDINT_H -o sha1.o -c sha1.c
-SHA1.o : SHA1.c
-	$(CC) $(CFLAGS) -DHAVE_STDINT_H -o SHA1.o -c SHA1.c
 
 install : mdadm install-man
 	$(INSTALL) -D $(STRIP) -m 755 mdadm $(DESTDIR)$(BINDIR)/mdadm

SHA1.c

@@ -1,19 +0,0 @@
-
-/* Simple wrapper for code in sha1.c, to
- * provide SHA1() interface as provided by opensll.
- * I do this because I cannot get SHA1 when staticly linking.
- *
- * sha1.c sha1.h md5.h all copied from coreutils-5.94
- */
-
-#include "sha1.h"
-
-unsigned char *SHA1(unsigned char *buf, int len, unsigned char *dest)
-{
-	static unsigned char defdest[20];
-	if (dest == NULL) dest = defdest;
-
-	return (unsigned char *)sha1_buffer((const char*)buf,
-					    len,
-					    (void*)dest);
-}

super0.c

@@ -27,12 +27,9 @@
  *           Australia
  */
 
+#define HAVE_STDINT_H 1
 #include "mdadm.h"
-#ifndef UCLIBC
+#include "sha1.h"
-#include <openssl/sha.h> /* for SHA1 */
-#else
-extern unsigned char *SHA1(unsigned char *buf, int len, unsigned char *dest);
-#endif
 /*
  * All handling for the 0.90.0 version superblock is in
  * this file.
@@ -102,9 +99,10 @@ static void examine_super0(void *sbv, char *homehost)
 		printf("           UUID : %08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
 		       sb->set_uuid2, sb->set_uuid3);
 		if (homehost) {
-			unsigned char *hash = SHA1((unsigned char *)homehost,
+			char buf[20];
-						   strlen(homehost),
+			void *hash = sha1_buffer(homehost,
-						   NULL);
+						 strlen(homehost),
+						 buf);
 			if (memcmp(&sb->set_uuid2, hash, 8)==0)
 				printf(" (local to host %s)", homehost);
 		}
@@ -261,9 +259,10 @@ static void detail_super0(void *sbv, char *homehost)
 	else
 		printf("%08x", sb->set_uuid0);
 	if (homehost) {
-		unsigned char *hash = SHA1((unsigned char *)homehost,
+		char buf[20];
-					   strlen(homehost),
+		void *hash = sha1_buffer(homehost,
-					   NULL);
+					 strlen(homehost),
+					 buf);
 		if (memcmp(&sb->set_uuid2, hash, 8)==0)
 			printf(" (local to host %s)", homehost);
 	}
@@ -285,9 +284,10 @@ static void brief_detail_super0(void *sbv)
 static int match_home0(void *sbv, char *homehost)
 {
 	mdp_super_t *sb = sbv;
-	unsigned char *hash = SHA1((unsigned char *)homehost,
+	char buf[20];
-				   strlen(homehost),
+	char *hash = sha1_buffer(homehost,
-				   NULL);
+				 strlen(homehost),
+				 buf);
 
 	return (memcmp(&sb->set_uuid2, hash, 8)==0);
 }
@@ -474,9 +474,10 @@ static int update_super0(struct mdinfo *info, void *sbv, char *update,
 	}
 	if (strcmp(update, "uuid") == 0) {
 		if (!uuid_set && homehost) {
-			unsigned char *hash = SHA1((unsigned char*)homehost,
+			char buf[20];
-						   strlen(homehost),
+			char *hash = sha1_buffer(homehost,
-						   NULL);
+						 strlen(homehost),
+						 buf);
 			memcpy(info->uuid+2, hash, 8);
 		}
 		sb->set_uuid0 = info->uuid[0];
@@ -557,9 +558,10 @@ static int init_super0(struct supertype *st, void **sbp, mdu_array_info_t *info,
 	if (rfd >= 0)
 		close(rfd);
 	if (homehost) {
-		unsigned char *hash = SHA1((unsigned char*)homehost,
+		char buf[20];
-					   strlen(homehost),
+		char *hash = sha1_buffer(homehost,
-					   NULL);
+					 strlen(homehost),
+					 buf);
 		memcpy(&sb->set_uuid2, hash, 8);
 	}