X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fenc.c;h=8e2ef27aca34f0cfba5458a7d523d4d6f10d2805;hp=bae7f21d79047530792c9ded85f31c9e845f2d30;hb=b50826727e77f2736fc2cf5b4a4f646ee0d67182;hpb=4579924b7e55fccc7013e6de196f2e2ab175ce39

diff --git a/apps/enc.c b/apps/enc.c
index bae7f21d79..8e2ef27aca 100644
--- a/apps/enc.c
+++ b/apps/enc.c
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +34,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
@@ -67,560 +67,649 @@
 #include <openssl/x509.h>
 #include <openssl/rand.h>
 #include <openssl/pem.h>
+#ifndef OPENSSL_NO_COMP
+# include <openssl/comp.h>
+#endif
 #include <ctype.h>
 
-int set_hex(char *in,unsigned char *out,int size);
+int set_hex(char *in, unsigned char *out, int size);
 #undef SIZE
 #undef BSIZE
 #undef PROG
 
-#define SIZE	(512)
-#define BSIZE	(8*1024)
-#define	PROG	enc_main
+#define SIZE    (512)
+#define BSIZE   (8*1024)
+#define PROG    enc_main
 
-static void show_ciphers(const OBJ_NAME *name,void *bio_)
-	{
-	BIO *bio=bio_;
-	static int n;
+static void show_ciphers(const OBJ_NAME *name, void *bio_)
+{
+    BIO *bio = bio_;
+    static int n;
 
-	if(!islower((unsigned char)*name->name))
-		return;
+    if (!islower((unsigned char)*name->name))
+        return;
 
-	BIO_printf(bio,"-%-25s",name->name);
-	if(++n == 3)
-		{
-		BIO_printf(bio,"\n");
-		n=0;
-		}
-	else
-		BIO_printf(bio," ");
-	}
+    BIO_printf(bio, "-%-25s", name->name);
+    if (++n == 3) {
+        BIO_printf(bio, "\n");
+        n = 0;
+    } else
+        BIO_printf(bio, " ");
+}
 
 int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
-	{
-	ENGINE *e = NULL;
-	static const char magic[]="Salted__";
-	char mbuf[sizeof magic-1];
-	char *strbuf=NULL;
-	unsigned char *buff=NULL,*bufsize=NULL;
-	int bsize=BSIZE,verbose=0;
-	int ret=1,inl;
-	int nopad = 0;
-	unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH];
-	unsigned char salt[PKCS5_SALT_LEN];
-	char *str=NULL, *passarg = NULL, *pass = NULL;
-	char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
-	int enc=1,printkey=0,i,base64=0;
-	int debug=0,olb64=0,nosalt=0;
-	const EVP_CIPHER *cipher=NULL,*c;
-	char *inf=NULL,*outf=NULL;
-	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
+{
+    static const char magic[] = "Salted__";
+    char mbuf[sizeof magic - 1];
+    char *strbuf = NULL;
+    unsigned char *buff = NULL, *bufsize = NULL;
+    int bsize = BSIZE, verbose = 0;
+    int ret = 1, inl;
+    int nopad = 0;
+    unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
+    unsigned char salt[PKCS5_SALT_LEN];
+    char *str = NULL, *passarg = NULL, *pass = NULL;
+    char *hkey = NULL, *hiv = NULL, *hsalt = NULL;
+    char *md = NULL;
+    int enc = 1, printkey = 0, i, base64 = 0;
+#ifdef ZLIB
+    int do_zlib = 0;
+    BIO *bzl = NULL;
+#endif
+    int debug = 0, olb64 = 0, nosalt = 0;
+    const EVP_CIPHER *cipher = NULL, *c;
+    EVP_CIPHER_CTX *ctx = NULL;
+    char *inf = NULL, *outf = NULL;
+    BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
+        NULL, *wbio = NULL;
 #define PROG_NAME_SIZE  39
-	char pname[PROG_NAME_SIZE+1];
-	char *engine = NULL;
-
-	apps_startup();
-
-	if (bio_err == NULL)
-		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
-			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
-
-	if (!load_config(bio_err, NULL))
-		goto end;
-
-	/* first check the program name */
-	program_name(argv[0],pname,sizeof pname);
-	if (strcmp(pname,"base64") == 0)
-		base64=1;
-
-	cipher=EVP_get_cipherbyname(pname);
-	if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
-		{
-		BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
-		goto bad;
-		}
-
-	argc--;
-	argv++;
-	while (argc >= 1)
-		{
-		if	(strcmp(*argv,"-e") == 0)
-			enc=1;
-		else if (strcmp(*argv,"-in") == 0)
-			{
-			if (--argc < 1) goto bad;
-			inf= *(++argv);
-			}
-		else if (strcmp(*argv,"-out") == 0)
-			{
-			if (--argc < 1) goto bad;
-			outf= *(++argv);
-			}
-		else if (strcmp(*argv,"-pass") == 0)
-			{
-			if (--argc < 1) goto bad;
-			passarg= *(++argv);
-			}
-		else if (strcmp(*argv,"-engine") == 0)
-			{
-			if (--argc < 1) goto bad;
-			engine= *(++argv);
-			}
-		else if	(strcmp(*argv,"-d") == 0)
-			enc=0;
-		else if	(strcmp(*argv,"-p") == 0)
-			printkey=1;
-		else if	(strcmp(*argv,"-v") == 0)
-			verbose=1;
-		else if	(strcmp(*argv,"-nopad") == 0)
-			nopad=1;
-		else if	(strcmp(*argv,"-salt") == 0)
-			nosalt=0;
-		else if	(strcmp(*argv,"-nosalt") == 0)
-			nosalt=1;
-		else if	(strcmp(*argv,"-debug") == 0)
-			debug=1;
-		else if	(strcmp(*argv,"-P") == 0)
-			printkey=2;
-		else if	(strcmp(*argv,"-A") == 0)
-			olb64=1;
-		else if	(strcmp(*argv,"-a") == 0)
-			base64=1;
-		else if	(strcmp(*argv,"-base64") == 0)
-			base64=1;
-		else if (strcmp(*argv,"-bufsize") == 0)
-			{
-			if (--argc < 1) goto bad;
-			bufsize=(unsigned char *)*(++argv);
-			}
-		else if (strcmp(*argv,"-k") == 0)
-			{
-			if (--argc < 1) goto bad;
-			str= *(++argv);
-			}
-		else if (strcmp(*argv,"-kfile") == 0)
-			{
-			static char buf[128];
-			FILE *infile;
-			char *file;
-
-			if (--argc < 1) goto bad;
-			file= *(++argv);
-			infile=fopen(file,"r");
-			if (infile == NULL)
-				{
-				BIO_printf(bio_err,"unable to read key from '%s'\n",
-					file);
-				goto bad;
-				}
-			buf[0]='\0';
-			fgets(buf,sizeof buf,infile);
-			fclose(infile);
-			i=strlen(buf);
-			if ((i > 0) &&
-				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
-				buf[--i]='\0';
-			if ((i > 0) &&
-				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
-				buf[--i]='\0';
-			if (i < 1)
-				{
-				BIO_printf(bio_err,"zero length password\n");
-				goto bad;
-				}
-			str=buf;
-			}
-		else if (strcmp(*argv,"-K") == 0)
-			{
-			if (--argc < 1) goto bad;
-			hkey= *(++argv);
-			}
-		else if (strcmp(*argv,"-S") == 0)
-			{
-			if (--argc < 1) goto bad;
-			hsalt= *(++argv);
-			}
-		else if (strcmp(*argv,"-iv") == 0)
-			{
-			if (--argc < 1) goto bad;
-			hiv= *(++argv);
-			}
-		else if	((argv[0][0] == '-') &&
-			((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
-			{
-			cipher=c;
-			}
-		else if (strcmp(*argv,"-none") == 0)
-			cipher=NULL;
-		else
-			{
-			BIO_printf(bio_err,"unknown option '%s'\n",*argv);
-bad:
-			BIO_printf(bio_err,"options are\n");
-			BIO_printf(bio_err,"%-14s input file\n","-in <file>");
-			BIO_printf(bio_err,"%-14s output file\n","-out <file>");
-			BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
-			BIO_printf(bio_err,"%-14s encrypt\n","-e");
-			BIO_printf(bio_err,"%-14s decrypt\n","-d");
-			BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
-			BIO_printf(bio_err,"%-14s key is the next argument\n","-k");
-			BIO_printf(bio_err,"%-14s key is the first line of the file argument\n","-kfile");
-			BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
-			BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
-			BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
-			BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
-
-			BIO_printf(bio_err,"Cipher Types\n");
-			OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
-					       show_ciphers,
-					       bio_err);
-			BIO_printf(bio_err,"\n");
-
-			goto end;
-			}
-		argc--;
-		argv++;
-		}
-
-        e = setup_engine(bio_err, engine, 0);
-
-	if (bufsize != NULL)
-		{
-		unsigned long n;
-
-		for (n=0; *bufsize; bufsize++)
-			{
-			i= *bufsize;
-			if ((i <= '9') && (i >= '0'))
-				n=n*10+i-'0';
-			else if (i == 'k')
-				{
-				n*=1024;
-				bufsize++;
-				break;
-				}
-			}
-		if (*bufsize != '\0')
-			{
-			BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
-			goto end;
-			}
-
-		/* It must be large enough for a base64 encoded line */
-		if (n < 80) n=80;
-
-		bsize=(int)n;
-		if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
-		}
-
-	strbuf=OPENSSL_malloc(SIZE);
-	buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
-	if ((buff == NULL) || (strbuf == NULL))
-		{
-		BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
-		goto end;
-		}
-
-	in=BIO_new(BIO_s_file());
-	out=BIO_new(BIO_s_file());
-	if ((in == NULL) || (out == NULL))
-		{
-		ERR_print_errors(bio_err);
-		goto end;
-		}
-	if (debug)
-		{
-		BIO_set_callback(in,BIO_debug_callback);
-		BIO_set_callback(out,BIO_debug_callback);
-		BIO_set_callback_arg(in,bio_err);
-		BIO_set_callback_arg(out,bio_err);
-		}
-
-	if (inf == NULL)
-		BIO_set_fp(in,stdin,BIO_NOCLOSE);
-	else
-		{
-		if (BIO_read_filename(in,inf) <= 0)
-			{
-			perror(inf);
-			goto end;
-			}
-		}
-
-	if(!str && passarg) {
-		if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
-			BIO_printf(bio_err, "Error getting password\n");
-			goto end;
-		}
-		str = pass;
-	}
-
-	if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
-		{
-		for (;;)
-			{
-			char buf[200];
-
-			sprintf(buf,"enter %s %s password:",
-				OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
-				(enc)?"encryption":"decryption");
-			strbuf[0]='\0';
-			i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
-			if (i == 0)
-				{
-				if (strbuf[0] == '\0')
-					{
-					ret=1;
-					goto end;
-					}
-				str=strbuf;
-				break;
-				}
-			if (i < 0)
-				{
-				BIO_printf(bio_err,"bad password read\n");
-				goto end;
-				}
-			}
-		}
-
-
-	if (outf == NULL)
-		{
-		BIO_set_fp(out,stdout,BIO_NOCLOSE);
+    char pname[PROG_NAME_SIZE + 1];
+#ifndef OPENSSL_NO_ENGINE
+    char *engine = NULL;
+#endif
+    const EVP_MD *dgst = NULL;
+    int non_fips_allow = 0;
+
+    apps_startup();
+
+    if (bio_err == NULL)
+        if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+            BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
+
+    if (!load_config(bio_err, NULL))
+        goto end;
+
+    /* first check the program name */
+    program_name(argv[0], pname, sizeof pname);
+    if (strcmp(pname, "base64") == 0)
+        base64 = 1;
+#ifdef ZLIB
+    if (strcmp(pname, "zlib") == 0)
+        do_zlib = 1;
+#endif
+
+    cipher = EVP_get_cipherbyname(pname);
+#ifdef ZLIB
+    if (!do_zlib && !base64 && (cipher == NULL)
+        && (strcmp(pname, "enc") != 0))
+#else
+    if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0))
+#endif
+    {
+        BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
+        goto bad;
+    }
+
+    argc--;
+    argv++;
+    while (argc >= 1) {
+        if (strcmp(*argv, "-e") == 0)
+            enc = 1;
+        else if (strcmp(*argv, "-in") == 0) {
+            if (--argc < 1)
+                goto bad;
+            inf = *(++argv);
+        } else if (strcmp(*argv, "-out") == 0) {
+            if (--argc < 1)
+                goto bad;
+            outf = *(++argv);
+        } else if (strcmp(*argv, "-pass") == 0) {
+            if (--argc < 1)
+                goto bad;
+            passarg = *(++argv);
+        }
+#ifndef OPENSSL_NO_ENGINE
+        else if (strcmp(*argv, "-engine") == 0) {
+            if (--argc < 1)
+                goto bad;
+            engine = *(++argv);
+        }
+#endif
+        else if (strcmp(*argv, "-d") == 0)
+            enc = 0;
+        else if (strcmp(*argv, "-p") == 0)
+            printkey = 1;
+        else if (strcmp(*argv, "-v") == 0)
+            verbose = 1;
+        else if (strcmp(*argv, "-nopad") == 0)
+            nopad = 1;
+        else if (strcmp(*argv, "-salt") == 0)
+            nosalt = 0;
+        else if (strcmp(*argv, "-nosalt") == 0)
+            nosalt = 1;
+        else if (strcmp(*argv, "-debug") == 0)
+            debug = 1;
+        else if (strcmp(*argv, "-P") == 0)
+            printkey = 2;
+        else if (strcmp(*argv, "-A") == 0)
+            olb64 = 1;
+        else if (strcmp(*argv, "-a") == 0)
+            base64 = 1;
+        else if (strcmp(*argv, "-base64") == 0)
+            base64 = 1;
+#ifdef ZLIB
+        else if (strcmp(*argv, "-z") == 0)
+            do_zlib = 1;
+#endif
+        else if (strcmp(*argv, "-bufsize") == 0) {
+            if (--argc < 1)
+                goto bad;
+            bufsize = (unsigned char *)*(++argv);
+        } else if (strcmp(*argv, "-k") == 0) {
+            if (--argc < 1)
+                goto bad;
+            str = *(++argv);
+        } else if (strcmp(*argv, "-kfile") == 0) {
+            static char buf[128];
+            FILE *infile;
+            char *file;
+
+            if (--argc < 1)
+                goto bad;
+            file = *(++argv);
+            infile = fopen(file, "r");
+            if (infile == NULL) {
+                BIO_printf(bio_err, "unable to read key from '%s'\n", file);
+                goto bad;
+            }
+            buf[0] = '\0';
+            if (!fgets(buf, sizeof buf, infile)) {
+                BIO_printf(bio_err, "unable to read key from '%s'\n", file);
+                goto bad;
+            }
+            fclose(infile);
+            i = strlen(buf);
+            if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
+                buf[--i] = '\0';
+            if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
+                buf[--i] = '\0';
+            if (i < 1) {
+                BIO_printf(bio_err, "zero length password\n");
+                goto bad;
+            }
+            str = buf;
+        } else if (strcmp(*argv, "-K") == 0) {
+            if (--argc < 1)
+                goto bad;
+            hkey = *(++argv);
+        } else if (strcmp(*argv, "-S") == 0) {
+            if (--argc < 1)
+                goto bad;
+            hsalt = *(++argv);
+        } else if (strcmp(*argv, "-iv") == 0) {
+            if (--argc < 1)
+                goto bad;
+            hiv = *(++argv);
+        } else if (strcmp(*argv, "-md") == 0) {
+            if (--argc < 1)
+                goto bad;
+            md = *(++argv);
+        } else if (strcmp(*argv, "-non-fips-allow") == 0)
+            non_fips_allow = 1;
+        else if ((argv[0][0] == '-') &&
+                 ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) {
+            cipher = c;
+        } else if (strcmp(*argv, "-none") == 0)
+            cipher = NULL;
+        else {
+            BIO_printf(bio_err, "unknown option '%s'\n", *argv);
+ bad:
+            BIO_printf(bio_err, "options are\n");
+            BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
+            BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
+            BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
+            BIO_printf(bio_err, "%-14s encrypt\n", "-e");
+            BIO_printf(bio_err, "%-14s decrypt\n", "-d");
+            BIO_printf(bio_err,
+                       "%-14s base64 encode/decode, depending on encryption flag\n",
+                       "-a/-base64");
+            BIO_printf(bio_err, "%-14s passphrase is the next argument\n",
+                       "-k");
+            BIO_printf(bio_err,
+                       "%-14s passphrase is the first line of the file argument\n",
+                       "-kfile");
+            BIO_printf(bio_err,
+                       "%-14s the next argument is the md to use to create a key\n",
+                       "-md");
+            BIO_printf(bio_err,
+                       "%-14s   from a passphrase.  One of md2, md5, sha or sha1\n",
+                       "");
+            BIO_printf(bio_err, "%-14s salt in hex is the next argument\n",
+                       "-S");
+            BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n",
+                       "-K/-iv");
+            BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n",
+                       "-[pP]");
+            BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
+            BIO_printf(bio_err, "%-14s disable standard block padding\n",
+                       "-nopad");
+#ifndef OPENSSL_NO_ENGINE
+            BIO_printf(bio_err,
+                       "%-14s use engine e, possibly a hardware device.\n",
+                       "-engine e");
+#endif
+
+            BIO_printf(bio_err, "Cipher Types\n");
+            OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
+                                   show_ciphers, bio_err);
+            BIO_printf(bio_err, "\n");
+
+            goto end;
+        }
+        argc--;
+        argv++;
+    }
+
+#ifndef OPENSSL_NO_ENGINE
+    setup_engine(bio_err, engine, 0);
+#endif
+
+    if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) {
+        BIO_printf(bio_err,
+                   "AEAD ciphers not supported by the enc utility\n");
+        goto end;
+    }
+
+    if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) {
+        BIO_printf(bio_err,
+                   "Ciphers in XTS mode are not supported by the enc utility\n");
+        goto end;
+    }
+
+    if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
+        BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
+        goto end;
+    }
+
+    if (dgst == NULL) {
+        dgst = EVP_md5();
+    }
+
+    if (bufsize != NULL) {
+        unsigned long n;
+
+        for (n = 0; *bufsize; bufsize++) {
+            i = *bufsize;
+            if ((i <= '9') && (i >= '0'))
+                n = n * 10 + i - '0';
+            else if (i == 'k') {
+                n *= 1024;
+                bufsize++;
+                break;
+            }
+        }
+        if (*bufsize != '\0') {
+            BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
+            goto end;
+        }
+
+        /* It must be large enough for a base64 encoded line */
+        if (base64 && n < 80)
+            n = 80;
+
+        bsize = (int)n;
+        if (verbose)
+            BIO_printf(bio_err, "bufsize=%d\n", bsize);
+    }
+
+    strbuf = OPENSSL_malloc(SIZE);
+    buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
+    if ((buff == NULL) || (strbuf == NULL)) {
+        BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n",
+                   (long)EVP_ENCODE_LENGTH(bsize));
+        goto end;
+    }
+
+    in = BIO_new(BIO_s_file());
+    out = BIO_new(BIO_s_file());
+    if ((in == NULL) || (out == NULL)) {
+        ERR_print_errors(bio_err);
+        goto end;
+    }
+    if (debug) {
+        BIO_set_callback(in, BIO_debug_callback);
+        BIO_set_callback(out, BIO_debug_callback);
+        BIO_set_callback_arg(in, (char *)bio_err);
+        BIO_set_callback_arg(out, (char *)bio_err);
+    }
+
+    if (inf == NULL) {
+#ifndef OPENSSL_NO_SETVBUF_IONBF
+        if (bufsize != NULL)
+            setvbuf(stdin, (char *)NULL, _IONBF, 0);
+#endif                          /* ndef OPENSSL_NO_SETVBUF_IONBF */
+        BIO_set_fp(in, stdin, BIO_NOCLOSE);
+    } else {
+        if (BIO_read_filename(in, inf) <= 0) {
+            perror(inf);
+            goto end;
+        }
+    }
+
+    if (!str && passarg) {
+        if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
+            BIO_printf(bio_err, "Error getting password\n");
+            goto end;
+        }
+        str = pass;
+    }
+
+    if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
+        for (;;) {
+            char buf[200];
+
+            BIO_snprintf(buf, sizeof buf, "enter %s %s password:",
+                         OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
+                         (enc) ? "encryption" : "decryption");
+            strbuf[0] = '\0';
+            i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc);
+            if (i == 0) {
+                if (strbuf[0] == '\0') {
+                    ret = 1;
+                    goto end;
+                }
+                str = strbuf;
+                break;
+            }
+            if (i < 0) {
+                BIO_printf(bio_err, "bad password read\n");
+                goto end;
+            }
+        }
+    }
+
+    if (outf == NULL) {
+        BIO_set_fp(out, stdout, BIO_NOCLOSE);
+#ifndef OPENSSL_NO_SETVBUF_IONBF
+        if (bufsize != NULL)
+            setvbuf(stdout, (char *)NULL, _IONBF, 0);
+#endif                          /* ndef OPENSSL_NO_SETVBUF_IONBF */
 #ifdef OPENSSL_SYS_VMS
-		{
-		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
-		out = BIO_push(tmpbio, out);
-		}
+        {
+            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+            out = BIO_push(tmpbio, out);
+        }
+#endif
+    } else {
+        if (BIO_write_filename(out, outf) <= 0) {
+            perror(outf);
+            goto end;
+        }
+    }
+
+    rbio = in;
+    wbio = out;
+
+#ifdef ZLIB
+
+    if (do_zlib) {
+        if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
+            goto end;
+        if (enc)
+            wbio = BIO_push(bzl, wbio);
+        else
+            rbio = BIO_push(bzl, rbio);
+    }
+#endif
+
+    if (base64) {
+        if ((b64 = BIO_new(BIO_f_base64())) == NULL)
+            goto end;
+        if (debug) {
+            BIO_set_callback(b64, BIO_debug_callback);
+            BIO_set_callback_arg(b64, (char *)bio_err);
+        }
+        if (olb64)
+            BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+        if (enc)
+            wbio = BIO_push(b64, wbio);
+        else
+            rbio = BIO_push(b64, rbio);
+    }
+
+    if (cipher != NULL) {
+        /*
+         * Note that str is NULL if a key was passed on the command line, so
+         * we get no salt in that case. Is this a bug?
+         */
+        if (str != NULL) {
+            /*
+             * Salt handling: if encrypting generate a salt and write to
+             * output BIO. If decrypting read salt from input BIO.
+             */
+            unsigned char *sptr;
+            if (nosalt)
+                sptr = NULL;
+            else {
+                if (enc) {
+                    if (hsalt) {
+                        if (!set_hex(hsalt, salt, sizeof salt)) {
+                            BIO_printf(bio_err, "invalid hex salt value\n");
+                            goto end;
+                        }
+                    } else if (RAND_bytes(salt, sizeof salt) <= 0)
+                        goto end;
+                    /*
+                     * If -P option then don't bother writing
+                     */
+                    if ((printkey != 2)
+                        && (BIO_write(wbio, magic,
+                                      sizeof magic - 1) != sizeof magic - 1
+                            || BIO_write(wbio,
+                                         (char *)salt,
+                                         sizeof salt) != sizeof salt)) {
+                        BIO_printf(bio_err, "error writing output file\n");
+                        goto end;
+                    }
+                } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
+                           || BIO_read(rbio,
+                                       (unsigned char *)salt,
+                                       sizeof salt) != sizeof salt) {
+                    BIO_printf(bio_err, "error reading input file\n");
+                    goto end;
+                } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
+                    BIO_printf(bio_err, "bad magic number\n");
+                    goto end;
+                }
+
+                sptr = salt;
+            }
+
+            EVP_BytesToKey(cipher, dgst, sptr,
+                           (unsigned char *)str, strlen(str), 1, key, iv);
+            /*
+             * zero the complete buffer or the string passed from the command
+             * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
+             */
+            if (str == strbuf)
+                OPENSSL_cleanse(str, SIZE);
+            else
+                OPENSSL_cleanse(str, strlen(str));
+        }
+        if (hiv != NULL) {
+            int siz = EVP_CIPHER_iv_length(cipher);
+            if (siz == 0) {
+                BIO_printf(bio_err, "warning: iv not use by this cipher\n");
+            } else if (!set_hex(hiv, iv, sizeof iv)) {
+                BIO_printf(bio_err, "invalid hex iv value\n");
+                goto end;
+            }
+        }
+        if ((hiv == NULL) && (str == NULL)
+            && EVP_CIPHER_iv_length(cipher) != 0) {
+            /*
+             * No IV was explicitly set and no IV was generated during
+             * EVP_BytesToKey. Hence the IV is undefined, making correct
+             * decryption impossible.
+             */
+            BIO_printf(bio_err, "iv undefined\n");
+            goto end;
+        }
+        if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
+            BIO_printf(bio_err, "invalid hex key value\n");
+            goto end;
+        }
+
+        if ((benc = BIO_new(BIO_f_cipher())) == NULL)
+            goto end;
+
+        /*
+         * Since we may be changing parameters work on the encryption context
+         * rather than calling BIO_set_cipher().
+         */
+
+        BIO_get_cipher_ctx(benc, &ctx);
+
+        if (non_fips_allow)
+            EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW);
+
+        if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
+            BIO_printf(bio_err, "Error setting cipher %s\n",
+                       EVP_CIPHER_name(cipher));
+            ERR_print_errors(bio_err);
+            goto end;
+        }
+
+        if (nopad)
+            EVP_CIPHER_CTX_set_padding(ctx, 0);
+
+        if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
+            BIO_printf(bio_err, "Error setting cipher %s\n",
+                       EVP_CIPHER_name(cipher));
+            ERR_print_errors(bio_err);
+            goto end;
+        }
+
+        if (debug) {
+            BIO_set_callback(benc, BIO_debug_callback);
+            BIO_set_callback_arg(benc, (char *)bio_err);
+        }
+
+        if (printkey) {
+            if (!nosalt) {
+                printf("salt=");
+                for (i = 0; i < (int)sizeof(salt); i++)
+                    printf("%02X", salt[i]);
+                printf("\n");
+            }
+            if (cipher->key_len > 0) {
+                printf("key=");
+                for (i = 0; i < cipher->key_len; i++)
+                    printf("%02X", key[i]);
+                printf("\n");
+            }
+            if (cipher->iv_len > 0) {
+                printf("iv =");
+                for (i = 0; i < cipher->iv_len; i++)
+                    printf("%02X", iv[i]);
+                printf("\n");
+            }
+            if (printkey == 2) {
+                ret = 0;
+                goto end;
+            }
+        }
+    }
+
+    /* Only encrypt/decrypt as we write the file */
+    if (benc != NULL)
+        wbio = BIO_push(benc, wbio);
+
+    for (;;) {
+        inl = BIO_read(rbio, (char *)buff, bsize);
+        if (inl <= 0)
+            break;
+        if (BIO_write(wbio, (char *)buff, inl) != inl) {
+            BIO_printf(bio_err, "error writing output file\n");
+            goto end;
+        }
+    }
+    if (!BIO_flush(wbio)) {
+        BIO_printf(bio_err, "bad decrypt\n");
+        goto end;
+    }
+
+    ret = 0;
+    if (verbose) {
+        BIO_printf(bio_err, "bytes read   :%8ld\n", BIO_number_read(in));
+        BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
+    }
+ end:
+    ERR_print_errors(bio_err);
+    if (strbuf != NULL)
+        OPENSSL_free(strbuf);
+    if (buff != NULL)
+        OPENSSL_free(buff);
+    if (in != NULL)
+        BIO_free(in);
+    if (out != NULL)
+        BIO_free_all(out);
+    if (benc != NULL)
+        BIO_free(benc);
+    if (b64 != NULL)
+        BIO_free(b64);
+#ifdef ZLIB
+    if (bzl != NULL)
+        BIO_free(bzl);
 #endif
-		}
-	else
-		{
-		if (BIO_write_filename(out,outf) <= 0)
-			{
-			perror(outf);
-			goto end;
-			}
-		}
-
-	rbio=in;
-	wbio=out;
-
-	if (base64)
-		{
-		if ((b64=BIO_new(BIO_f_base64())) == NULL)
-			goto end;
-		if (debug)
-			{
-			BIO_set_callback(b64,BIO_debug_callback);
-			BIO_set_callback_arg(b64,bio_err);
-			}
-		if (olb64)
-			BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
-		if (enc)
-			wbio=BIO_push(b64,wbio);
-		else
-			rbio=BIO_push(b64,rbio);
-		}
-
-	if (cipher != NULL)
-		{
-		/* Note that str is NULL if a key was passed on the command
-		 * line, so we get no salt in that case. Is this a bug?
-		 */
-		if (str != NULL)
-			{
-			/* Salt handling: if encrypting generate a salt and
-			 * write to output BIO. If decrypting read salt from
-			 * input BIO.
-			 */
-			unsigned char *sptr;
-			if(nosalt) sptr = NULL;
-			else {
-				if(enc) {
-					if(hsalt) {
-						if(!set_hex(hsalt,salt,sizeof salt)) {
-							BIO_printf(bio_err,
-								"invalid hex salt value\n");
-							goto end;
-						}
-					} else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
-						goto end;
-					/* If -P option then don't bother writing */
-					if((printkey != 2)
-					   && (BIO_write(wbio,magic,
-							 sizeof magic-1) != sizeof magic-1
-					       || BIO_write(wbio,
-							    (char *)salt,
-							    sizeof salt) != sizeof salt)) {
-						BIO_printf(bio_err,"error writing output file\n");
-						goto end;
-					}
-				} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
-					  || BIO_read(rbio,
-						      (unsigned char *)salt,
-				    sizeof salt) != sizeof salt) {
-					BIO_printf(bio_err,"error reading input file\n");
-					goto end;
-				} else if(memcmp(mbuf,magic,sizeof magic-1)) {
-				    BIO_printf(bio_err,"bad magic number\n");
-				    goto end;
-				}
-
-				sptr = salt;
-			}
-
-			EVP_BytesToKey(cipher,EVP_md5(),sptr,
-				(unsigned char *)str,
-				strlen(str),1,key,iv);
-			/* zero the complete buffer or the string
-			 * passed from the command line
-			 * bug picked up by
-			 * Larry J. Hughes Jr. <hughes@indiana.edu> */
-			if (str == strbuf)
-				OPENSSL_cleanse(str,SIZE);
-			else
-				OPENSSL_cleanse(str,strlen(str));
-			}
-		if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv))
-			{
-			BIO_printf(bio_err,"invalid hex iv value\n");
-			goto end;
-			}
-		if ((hiv == NULL) && (str == NULL))
-			{
-			/* No IV was explicitly set and no IV was generated
-			 * during EVP_BytesToKey. Hence the IV is undefined,
-			 * making correct decryption impossible. */
-			BIO_printf(bio_err, "iv undefined\n");
-			goto end;
-			}
-		if ((hkey != NULL) && !set_hex(hkey,key,sizeof key))
-			{
-			BIO_printf(bio_err,"invalid hex key value\n");
-			goto end;
-			}
-
-		if ((benc=BIO_new(BIO_f_cipher())) == NULL)
-			goto end;
-		BIO_set_cipher(benc,cipher,key,iv,enc);
-		if (nopad)
-			{
-			EVP_CIPHER_CTX *ctx;
-			BIO_get_cipher_ctx(benc, &ctx);
-			EVP_CIPHER_CTX_set_padding(ctx, 0);
-			}
-		if (debug)
-			{
-			BIO_set_callback(benc,BIO_debug_callback);
-			BIO_set_callback_arg(benc,bio_err);
-			}
-
-		if (printkey)
-			{
-			if (!nosalt)
-				{
-				printf("salt=");
-				for (i=0; i<sizeof salt; i++)
-					printf("%02X",salt[i]);
-				printf("\n");
-				}
-			if (cipher->key_len > 0)
-				{
-				printf("key=");
-				for (i=0; i<cipher->key_len; i++)
-					printf("%02X",key[i]);
-				printf("\n");
-				}
-			if (cipher->iv_len > 0)
-				{
-				printf("iv =");
-				for (i=0; i<cipher->iv_len; i++)
-					printf("%02X",iv[i]);
-				printf("\n");
-				}
-			if (printkey == 2)
-				{
-				ret=0;
-				goto end;
-				}
-			}
-		}
-
-	/* Only encrypt/decrypt as we write the file */
-	if (benc != NULL)
-		wbio=BIO_push(benc,wbio);
-
-	for (;;)
-		{
-		inl=BIO_read(rbio,(char *)buff,bsize);
-		if (inl <= 0) break;
-		if (BIO_write(wbio,(char *)buff,inl) != inl)
-			{
-			BIO_printf(bio_err,"error writing output file\n");
-			goto end;
-			}
-		}
-	if (!BIO_flush(wbio))
-		{
-		BIO_printf(bio_err,"bad decrypt\n");
-		goto end;
-		}
-
-	ret=0;
-	if (verbose)
-		{
-		BIO_printf(bio_err,"bytes read   :%8ld\n",BIO_number_read(in));
-		BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
-		}
-end:
-	ERR_print_errors(bio_err);
-	if (strbuf != NULL) OPENSSL_free(strbuf);
-	if (buff != NULL) OPENSSL_free(buff);
-	if (in != NULL) BIO_free(in);
-	if (out != NULL) BIO_free_all(out);
-	if (benc != NULL) BIO_free(benc);
-	if (b64 != NULL) BIO_free(b64);
-	if(pass) OPENSSL_free(pass);
-	apps_shutdown();
-	EXIT(ret);
-	}
+    if (pass)
+        OPENSSL_free(pass);
+    apps_shutdown();
+    OPENSSL_EXIT(ret);
+}
 
 int set_hex(char *in, unsigned char *out, int size)
-	{
-	int i,n;
-	unsigned char j;
-
-	n=strlen(in);
-	if (n > (size*2))
-		{
-		BIO_printf(bio_err,"hex string is too long\n");
-		return(0);
-		}
-	memset(out,0,size);
-	for (i=0; i<n; i++)
-		{
-		j=(unsigned char)*in;
-		*(in++)='\0';
-		if (j == 0) break;
-		if ((j >= '0') && (j <= '9'))
-			j-='0';
-		else if ((j >= 'A') && (j <= 'F'))
-			j=j-'A'+10;
-		else if ((j >= 'a') && (j <= 'f'))
-			j=j-'a'+10;
-		else
-			{
-			BIO_printf(bio_err,"non-hex digit\n");
-			return(0);
-			}
-		if (i&1)
-			out[i/2]|=j;
-		else
-			out[i/2]=(j<<4);
-		}
-	return(1);
-	}
+{
+    int i, n;
+    unsigned char j;
+
+    n = strlen(in);
+    if (n > (size * 2)) {
+        BIO_printf(bio_err, "hex string is too long\n");
+        return (0);
+    }
+    memset(out, 0, size);
+    for (i = 0; i < n; i++) {
+        j = (unsigned char)*in;
+        *(in++) = '\0';
+        if (j == 0)
+            break;
+        if ((j >= '0') && (j <= '9'))
+            j -= '0';
+        else if ((j >= 'A') && (j <= 'F'))
+            j = j - 'A' + 10;
+        else if ((j >= 'a') && (j <= 'f'))
+            j = j - 'a' + 10;
+        else {
+            BIO_printf(bio_err, "non-hex digit\n");
+            return (0);
+        }
+        if (i & 1)
+            out[i / 2] |= j;
+        else
+            out[i / 2] = (j << 4);
+    }
+    return (1);
+}