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-rw-r--r--crypto/rc4/rc4.c232
1 files changed, 109 insertions, 123 deletions
diff --git a/crypto/rc4/rc4.c b/crypto/rc4/rc4.c
index c900b260554a..99082e891934 100644
--- a/crypto/rc4/rc4.c
+++ b/crypto/rc4/rc4.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
@@ -62,132 +62,118 @@
#include <openssl/rc4.h>
#include <openssl/evp.h>
-char *usage[]={
-"usage: rc4 args\n",
-"\n",
-" -in arg - input file - default stdin\n",
-" -out arg - output file - default stdout\n",
-" -key key - password\n",
-NULL
+char *usage[] = {
+ "usage: rc4 args\n",
+ "\n",
+ " -in arg - input file - default stdin\n",
+ " -out arg - output file - default stdout\n",
+ " -key key - password\n",
+ NULL
};
int main(int argc, char *argv[])
- {
- FILE *in=NULL,*out=NULL;
- char *infile=NULL,*outfile=NULL,*keystr=NULL;
- RC4_KEY key;
- char buf[BUFSIZ];
- int badops=0,i;
- char **pp;
- unsigned char md[MD5_DIGEST_LENGTH];
+{
+ FILE *in = NULL, *out = NULL;
+ char *infile = NULL, *outfile = NULL, *keystr = NULL;
+ RC4_KEY key;
+ char buf[BUFSIZ];
+ int badops = 0, i;
+ char **pp;
+ unsigned char md[MD5_DIGEST_LENGTH];
+
+ argc--;
+ argv++;
+ while (argc >= 1) {
+ if (strcmp(*argv, "-in") == 0) {
+ if (--argc < 1)
+ goto bad;
+ infile = *(++argv);
+ } else if (strcmp(*argv, "-out") == 0) {
+ if (--argc < 1)
+ goto bad;
+ outfile = *(++argv);
+ } else if (strcmp(*argv, "-key") == 0) {
+ if (--argc < 1)
+ goto bad;
+ keystr = *(++argv);
+ } else {
+ fprintf(stderr, "unknown option %s\n", *argv);
+ badops = 1;
+ break;
+ }
+ argc--;
+ argv++;
+ }
- argc--;
- argv++;
- while (argc >= 1)
- {
- if (strcmp(*argv,"-in") == 0)
- {
- if (--argc < 1) goto bad;
- infile= *(++argv);
- }
- else if (strcmp(*argv,"-out") == 0)
- {
- if (--argc < 1) goto bad;
- outfile= *(++argv);
- }
- else if (strcmp(*argv,"-key") == 0)
- {
- if (--argc < 1) goto bad;
- keystr= *(++argv);
- }
- else
- {
- fprintf(stderr,"unknown option %s\n",*argv);
- badops=1;
- break;
- }
- argc--;
- argv++;
- }
+ if (badops) {
+ bad:
+ for (pp = usage; (*pp != NULL); pp++)
+ fprintf(stderr, "%s", *pp);
+ exit(1);
+ }
- if (badops)
- {
-bad:
- for (pp=usage; (*pp != NULL); pp++)
- fprintf(stderr,"%s",*pp);
- exit(1);
- }
+ if (infile == NULL)
+ in = stdin;
+ else {
+ in = fopen(infile, "r");
+ if (in == NULL) {
+ perror("open");
+ exit(1);
+ }
- if (infile == NULL)
- in=stdin;
- else
- {
- in=fopen(infile,"r");
- if (in == NULL)
- {
- perror("open");
- exit(1);
- }
+ }
+ if (outfile == NULL)
+ out = stdout;
+ else {
+ out = fopen(outfile, "w");
+ if (out == NULL) {
+ perror("open");
+ exit(1);
+ }
+ }
- }
- if (outfile == NULL)
- out=stdout;
- else
- {
- out=fopen(outfile,"w");
- if (out == NULL)
- {
- perror("open");
- exit(1);
- }
- }
-
#ifdef OPENSSL_SYS_MSDOS
- /* This should set the file to binary mode. */
- {
-#include <fcntl.h>
- setmode(fileno(in),O_BINARY);
- setmode(fileno(out),O_BINARY);
- }
+ /* This should set the file to binary mode. */
+ {
+# include <fcntl.h>
+ setmode(fileno(in), O_BINARY);
+ setmode(fileno(out), O_BINARY);
+ }
#endif
- if (keystr == NULL)
- { /* get key */
- i=EVP_read_pw_string(buf,BUFSIZ,"Enter RC4 password:",0);
- if (i != 0)
- {
- OPENSSL_cleanse(buf,BUFSIZ);
- fprintf(stderr,"bad password read\n");
- exit(1);
- }
- keystr=buf;
- }
+ if (keystr == NULL) { /* get key */
+ i = EVP_read_pw_string(buf, BUFSIZ, "Enter RC4 password:", 0);
+ if (i != 0) {
+ OPENSSL_cleanse(buf, BUFSIZ);
+ fprintf(stderr, "bad password read\n");
+ exit(1);
+ }
+ keystr = buf;
+ }
- EVP_Digest((unsigned char *)keystr,strlen(keystr),md,NULL,EVP_md5(),NULL);
- OPENSSL_cleanse(keystr,strlen(keystr));
- RC4_set_key(&key,MD5_DIGEST_LENGTH,md);
-
- for(;;)
- {
- i=fread(buf,1,BUFSIZ,in);
- if (i == 0) break;
- if (i < 0)
- {
- perror("read");
- exit(1);
- }
- RC4(&key,(unsigned int)i,(unsigned char *)buf,
- (unsigned char *)buf);
- i=fwrite(buf,(unsigned int)i,1,out);
- if (i != 1)
- {
- perror("write");
- exit(1);
- }
- }
- fclose(out);
- fclose(in);
- exit(0);
- return(1);
- }
+ EVP_Digest((unsigned char *)keystr, strlen(keystr), md, NULL, EVP_md5(),
+ NULL);
+ OPENSSL_cleanse(keystr, strlen(keystr));
+ RC4_set_key(&key, MD5_DIGEST_LENGTH, md);
+ for (;;) {
+ i = fread(buf, 1, BUFSIZ, in);
+ if (i == 0)
+ break;
+ if (i < 0) {
+ perror("read");
+ exit(1);
+ }
+ RC4(&key, (unsigned int)i, (unsigned char *)buf,
+ (unsigned char *)buf);
+ i = fwrite(buf, (unsigned int)i, 1, out);
+ if (i != 1) {
+ perror("write");
+ exit(1);
+ }
+ }
+ fclose(out);
+ fclose(in);
+ exit(0);
+ return (1);
+}