1 files changed, 165 insertions, 0 deletions

diff --git a/src/lib/libcrypto/des/fcrypt.c b/src/lib/libcrypto/des/fcrypt.c
new file mode 100644
index 0000000000..387d97f28d
--- /dev/null
+++ b/src/lib/libcrypto/des/fcrypt.c
@@ -0,0 +1,165 @@
+/* NOCW */
+#include <stdio.h>
+
+/* This version of crypt has been developed from my MIT compatible
+ * DES library.
+ * Eric Young (eay@cryptsoft.com)
+ */
+
+/* Modification by Jens Kupferschmidt (Cu)
+ * I have included directive PARA for shared memory computers.
+ * I have included a directive LONGCRYPT to using this routine to cipher
+ * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN
+ * definition is the maximum of length of password and can changed. I have
+ * defined 24.
+ */
+
+#include "des_locl.h"
+
+/* Added more values to handle illegal salt values the way normal
+ * crypt() implementations do.  The patch was sent by 
+ * Bjorn Gronvall <bg@sics.se>
+ */
+static unsigned const char con_salt[128]={
+0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,
+0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1,
+0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,
+0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,
+0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,
+0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01,
+0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
+0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A,
+0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12,
+0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,
+0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22,
+0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24,
+0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,
+0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,
+0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,
+0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,
+};
+
+static unsigned const char cov_2char[64]={
+0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
+0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
+0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
+0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
+0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
+0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
+0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
+0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
+};
+
+void fcrypt_body(DES_LONG *out,DES_key_schedule *ks,
+                 DES_LONG Eswap0, DES_LONG Eswap1);
+
+char *DES_crypt(const char *buf, const char *salt)
+        {
+        static char buff[14];
+
+#ifndef CHARSET_EBCDIC
+        return(DES_fcrypt(buf,salt,buff));
+#else
+        char e_salt[2+1];
+        char e_buf[32+1];       /* replace 32 by 8 ? */
+        char *ret;
+
+        /* Copy at most 2 chars of salt */
+        if ((e_salt[0] = salt[0]) != '\0')
+            e_salt[1] = salt[1];
+
+        /* Copy at most 32 chars of password */
+        strncpy (e_buf, buf, sizeof(e_buf));
+
+        /* Make sure we have a delimiter */
+        e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0';
+
+        /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */
+        ebcdic2ascii(e_salt, e_salt, sizeof e_salt);
+
+        /* Convert the cleartext password to ASCII */
+        ebcdic2ascii(e_buf, e_buf, sizeof e_buf);
+
+        /* Encrypt it (from/to ASCII) */
+        ret = DES_fcrypt(e_buf,e_salt,buff);
+
+        /* Convert the result back to EBCDIC */
+        ascii2ebcdic(ret, ret, strlen(ret));
+        
+        return ret;
+#endif
+        }
+
+
+char *DES_fcrypt(const char *buf, const char *salt, char *ret)
+        {
+        unsigned int i,j,x,y;
+        DES_LONG Eswap0,Eswap1;
+        DES_LONG out[2],ll;
+        DES_cblock key;
+        DES_key_schedule ks;
+        unsigned char bb[9];
+        unsigned char *b=bb;
+        unsigned char c,u;
+
+        /* eay 25/08/92
+         * If you call crypt("pwd","*") as often happens when you
+         * have * as the pwd field in /etc/passwd, the function
+         * returns *\0XXXXXXXXX
+         * The \0 makes the string look like * so the pwd "*" would
+         * crypt to "*".  This was found when replacing the crypt in
+         * our shared libraries.  People found that the disabled
+         * accounts effectively had no passwd :-(. */
+#ifndef CHARSET_EBCDIC
+        x=ret[0]=((salt[0] == '\0')?'A':salt[0]);
+        Eswap0=con_salt[x]<<2;
+        x=ret[1]=((salt[1] == '\0')?'A':salt[1]);
+        Eswap1=con_salt[x]<<6;
+#else
+        x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]);
+        Eswap0=con_salt[x]<<2;
+        x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]);
+        Eswap1=con_salt[x]<<6;
+#endif
+
+/* EAY
+r=strlen(buf);
+r=(r+7)/8;
+*/
+        for (i=0; i<8; i++)
+                {
+                c= *(buf++);
+                if (!c) break;
+                key[i]=(c<<1);
+                }
+        for (; i<8; i++)
+                key[i]=0;
+
+        DES_set_key_unchecked(&key,&ks);
+        fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1);
+
+        ll=out[0]; l2c(ll,b);
+        ll=out[1]; l2c(ll,b);
+        y=0;
+        u=0x80;
+        bb[8]=0;
+        for (i=2; i<13; i++)
+                {
+                c=0;
+                for (j=0; j<6; j++)
+                        {
+                        c<<=1;
+                        if (bb[y] & u) c|=1;
+                        u>>=1;
+                        if (!u)
+                                {
+                                y++;
+                                u=0x80;
+                                }
+                        }
+                ret[i]=cov_2char[c];
+                }
+        ret[13]='\0';
+        return(ret);
+        }
+