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-rw-r--r--app/openssl/apps/enc.c724
1 files changed, 724 insertions, 0 deletions
diff --git a/app/openssl/apps/enc.c b/app/openssl/apps/enc.c
new file mode 100644
index 00000000..076225c4
--- /dev/null
+++ b/app/openssl/apps/enc.c
@@ -0,0 +1,724 @@
+/* apps/enc.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * 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:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * 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
+ * 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
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * 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
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "apps.h"
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/rand.h>
+#include <openssl/pem.h>
+#include <openssl/comp.h>
+#include <ctype.h>
+
+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
+
+static void show_ciphers(const OBJ_NAME *name,void *bio_)
+ {
+ BIO *bio=bio_;
+ static int n;
+
+ 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," ");
+ }
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+ {
+ 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];
+#ifndef OPENSSL_NO_ENGINE
+ char *engine = NULL;
+#endif
+ const EVP_MD *dgst=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;
+#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 ((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 (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);
+ }
+#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_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,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) && !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,sizeof key))
+ {
+ 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 (!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
+ 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);
+ }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 07:55:08 +0000