Multiple Data Compression and Encryption using iterative Technique. B105

spatlou

RCS file: declerations.h,v
Working file: declerations.h
head: 1.5
branch:
locks: strict
        root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;     selected revisions: 5
description:
This header fil would contain all declerations.
Declared mainmenu()
----------------------------
revision 1.5    locked by: root;
date: 2017/10/06 10:18:43; author: root; state: Exp; lines: +1 -1
changed creatMasterArray() return to char*
----------------------------
revision 1.4
date: 2017/10/06 10:17:00; author: root; state: Exp; lines: +1 -0
Changet return value of creatMasterArray to int*
----------------------------
revision 1.3
date: 2017/10/05 07:09:07; author: root; state: Exp; lines: +1 -0
declared fileopen()
----------------------------
revision 1.2
date: 2017/10/03 10:36:42; author: root; state: Exp; lines: +2 -0
declared compression() decompression()
----------------------------
revision 1.1
date: 2017/10/03 10:15:43; author: root; state: Exp;
Initial revision
=============================================================================

bhardwaj_himanshu

Hello everyone i got stuck in compression4 function,I got index value for each character now i have to convert that index value into string to perform bit manipulation operation.i am getting error like invalid operand.
I am using sprintf() for converting the integer into string

Sprintf(arraywhereIstoring , type of value to be converted \n , index value);
I am using this syntax but giving error
If anybody have suggestions for this please discuss.

Thank you

sg1407217

RCS file: headers.h,v
Working file: headers.h
head: 1.2
branch:
locks: strict
        root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;     selected revisions: 2
description:
new header file included fcntl.h
----------------------------
revision 1.2    locked by: root;
date: 2017/10/09 11:16:04; author: root; state: Exp; lines: +1 -0
in this string.h header file is included.
----------------------------
revision 1.1
date: 2017/10/06 07:45:55; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: decleration.h,v
Working file: decleration.h
head: 1.12
branch:
locks: strict
        root: 1.12
access list:
symbolic names:
keyword substitution: kv
total revisions: 12;    selected revisions: 12
description:
In this 3 decleration function is declare.
----------------------------
revision 1.12   locked by: root;
date: 2017/10/12 17:47:06; author: root; state: Exp; lines: +6 -6
typo
----------------------------
revision 1.11
date: 2017/10/12 17:40:57; author: root; state: Exp; lines: +1 -1
typo
----------------------------
revision 1.10
date: 2017/10/12 17:39:44; author: root; state: Exp; lines: +1 -1
fopen is replaced by fopn.
----------------------------
revision 1.9
date: 2017/10/12 17:37:22; author: root; state: Exp; lines: +14 -0
function changed to function pointer.
----------------------------
revision 1.8
date: 2017/10/12 17:18:33; author: root; state: Exp; lines: +2 -0
function is replaced by function pointer.
----------------------------
revision 1.7
date: 2017/10/10 09:25:07; author: root; state: Exp; lines: +1 -0
findIndex() is decleraed.
----------------------------
revision 1.6
date: 2017/10/10 05:38:35; author: root; state: Exp; lines: +6 -0
compress2 3 4 5 6 7() is decleraed.
----------------------------
revision 1.5
date: 2017/10/10 05:18:59; author: root; state: Exp; lines: +1 -0
codelength() function is decleared to determine codelength of a ma.
----------------------------
revision 1.4
date: 2017/10/09 11:15:24; author: root; state: Exp; lines: +1 -0
in this string.h header file included.
----------------------------
revision 1.3
date: 2017/10/07 10:14:23; author: root; state: Exp; lines: +1 -0
fileopen() function is decleraed.
----------------------------
revision 1.2
date: 2017/10/06 11:48:11; author: root; state: Exp; lines: +1 -0
new creatmasterArray() declared
----------------------------
revision 1.1
date: 2017/10/06 06:07:03; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: main.c,v
Working file: main.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
----------------------------
revision 1.1    locked by: root;
date: 2017/10/06 11:04:37; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: mainmenu.c,v
Working file: mainmenu.c
head: 1.5
branch:
locks: strict
        root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;     selected revisions: 5
description:
In this mainmenu is displayed.
----------------------------
revision 1.5    locked by: root;
date: 2017/10/09 05:23:24; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.4
date: 2017/10/09 05:21:44; author: root; state: Exp; lines: +1 -0
*** empty log message ***
----------------------------
revision 1.3
date: 2017/10/06 08:14:32; author: root; state: Exp; lines: +0 -3
While loop included
----------------------------
revision 1.2
date: 2017/10/06 08:10:10; author: root; state: Exp; lines: +10 -7
In this we include while loop for multiple iteration.
----------------------------
revision 1.1
date: 2017/10/06 06:08:34; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: mdcaeuit.c,v
Working file: mdcaeuit.c
head: 1.4
branch:
locks: strict
        root: 1.4
access list:
symbolic names:
keyword substitution: kv
total revisions: 4;     selected revisions: 4
description:
While loop included.
----------------------------
revision 1.4    locked by: root;
date: 2017/10/12 17:46:13; author: root; state: Exp; lines: +2 -2
*** empty log message ***
----------------------------
revision 1.3
date: 2017/10/12 17:24:58; author: root; state: Exp; lines: +3 -3
typo
----------------------------
revision 1.2
date: 2017/10/12 17:20:56; author: root; state: Exp; lines: +7 -4
function is replacedby fuction pointer.
----------------------------
revision 1.1
date: 2017/10/06 08:18:23; author: root; state: Exp;
Initial revision
=============================================================================

sg1407217

RCS file: compression.c,v
Working file: compression.c
head: 1.28
branch:
locks: strict
root: 1.28
access list:
symbolic names:
keyword substitution: kv
total revisions: 28; selected revisions: 28
description:
We call fileopen fuction and show its return value.
----------------------------
revision 1.23
date: 2017/10/10 11:15:13; author: root; state: Exp; lines: +10 -1
encrytedkey file is make
and write master array in it.
----------------------------
revision 1.22
date: 2017/10/10 09:28:59; author: root; state: Exp; lines: +1 -1
typo
----------------------------
revision 1.21
date: 2017/10/10 09:26:26; author: root; state: Exp; lines: +1 -1
lseek() is used to take the file descriptor at starting of file.
----------------------------
revision 1.20
date: 2017/10/10 05:42:29; author: root; state: Exp; lines: +0 -2
*** empty log message ***
----------------------------
revision 1.19
date: 2017/10/10 05:40:18; author: root; state: Exp; lines: +27 -0
switch function is define in which codelength is passed.
acc. to codelength corresponding function is called.
compress2 3 4 5 6 7().
----------------------------
revision 1.18
date: 2017/10/10 05:20:37; author: root; state: Exp; lines: +8 -4
In this firstly we determine length of master array using strlength().
Then we determine the codelength of master array by calling codelength()
and print string length and codelength of master array.
----------------------------
revision 1.13
date: 2017/10/09 05:01:49; author: root; state: Exp; lines: +1 -1
*ma is replaced by ma in printf statement.
----------------------------
revision 1.12
date: 2017/10/09 04:57:43; author: root; state: Exp; lines: +1 -1
printf statement is included.
----------------------------
revision 1.11
date: 2017/10/09 04:55:50; author: root; state: Exp; lines: +1 -1
close function is included.
----------------------------
revision 1.10
date: 2017/10/09 04:50:45; author: root; state: Exp; lines: +1 -1
*ma at printf.
----------------------------
revision 1.9
date: 2017/10/09 04:44:12; author: root; state: Exp; lines: +2 -1
ma is taken as character.
----------------------------
revision 1.8
date: 2017/10/07 10:15:50; author: root; state: Exp; lines: +1 -1
; mistake is corrected.
----------------------------
revision 1.7
date: 2017/10/07 10:10:01; author: root; state: Exp; lines: +1 -1
Printf statement is commented.
----------------------------
revision 1.6
date: 2017/10/06 11:52:51; author: root; state: Exp; lines: +1 -1
error corrected
----------------------------
revision 1.5
date: 2017/10/06 11:50:59; author: root; state: Exp; lines: +1 -1
error correct in printf statement.
----------------------------
revision 1.4
date: 2017/10/06 11:48:47; author: root; state: Exp; lines: +5 -5
creatmastArray() function is called.
and print the master array.
----------------------------
revision 1.3
date: 2017/10/06 11:14:47; author: root; state: Exp; lines: +9 -1
In this an fs variable is taken and store value return from fileopen.
and also close the fileopen.
----------------------------
revision 1.2
date: 2017/10/06 11:07:01; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.1
date: 2017/10/06 07:50:10; author: root; state: Exp;
Initial revision
=============================================================================

sg1407217

RCS file: fileopen.c,v
Working file: fileopen.c
head: 1.6
branch:
locks: strict
        root: 1.6
access list:
symbolic names:
keyword substitution: kv
total revisions: 6;     selected revisions: 6
description:
In this empty file is created name by namefile.
----------------------------
revision 1.6    locked by: root;
date: 2017/10/09 05:21:43; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.5
date: 2017/10/09 04:56:52; author: root; state: Exp; lines: +1 -1
close function is commented.
----------------------------
revision 1.4
date: 2017/10/07 10:20:02; author: root; state: Exp; lines: +2 -1
} mistake is corrected.
----------------------------
revision 1.3
date: 2017/10/07 10:19:03; author: root; state: Exp; lines: +1 -1
Fs is changed to Fs variable.
----------------------------
revision 1.2
date: 2017/10/06 11:49:55; author: root; state: Exp; lines: +6 -0
in this file error is checked.
----------------------------
revision 1.1
date: 2017/10/06 07:53:15; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: findIndex.c,v
Working file: findIndex.c
head: 1.2
branch:
locks: strict
        root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;     selected revisions: 2
description:
----------------------------
revision 1.2    locked by: root;
date: 2017/10/10 11:07:32; author: root; state: Exp; lines: +2 -1
*** empty log message ***
----------------------------
revision 1.1
date: 2017/10/10 10:42:34; author: root; state: Exp;
Initial revision
=============================================================================
RCS file: unique.c,v
Working file: unique.c
head: 1.5
branch:
locks: strict
        root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5;     selected revisions: 5
description:
In this distinct charachter is computed and store in master array.
----------------------------
revision 1.5    locked by: root;
date: 2017/10/12 17:54:36; author: root; state: Exp; lines: +2 -0
if !ma is included
----------------------------
revision 1.4
date: 2017/10/09 11:34:45; author: root; state: Exp; lines: +2 -2
*** empty log message ***
----------------------------
revision 1.3
date: 2017/10/09 11:29:53; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.2
date: 2017/10/09 11:21:38; author: root; state: Exp; lines: +1 -1
!= is corrected.
----------------------------
revision 1.1
date: 2017/10/09 11:16:30; author: root; state: Exp;
Initial revision
=============================================================================
RCS file: creatmastArray.c,v
Working file: creatmastArray.c
head: 1.12
branch:
locks: strict
        root: 1.12
access list:
symbolic names:
keyword substitution: kv
total revisions: 12;    selected revisions: 12
description:
In this master array is created using malloc
----------------------------
revision 1.12   locked by: root;
date: 2017/10/12 17:53:07; author: root; state: Exp; lines: +9 -8
malloc is replaced by realloc for dynamic memory allocation.
----------------------------
revision 1.11
date: 2017/10/12 17:37:55; author: root; state: Exp; lines: +2 -1
*** empty log message ***
----------------------------
revision 1.10
date: 2017/10/10 09:27:03; author: root; state: Exp; lines: +4 -4
*** empty log message ***
----------------------------
revision 1.9
date: 2017/10/10 04:51:19; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.8
date: 2017/10/09 11:25:29; author: root; state: Exp; lines: +12 -6
*** empty log message ***
----------------------------
revision 1.7
date: 2017/10/09 05:25:01; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.6
date: 2017/10/09 05:23:23; author: root; state: Exp; lines: +1 -0
*** empty log message ***
----------------------------
revision 1.5
date: 2017/10/09 04:56:17; author: root; state: Exp; lines: +1 -0
\0 value is appiled at the end of array.
----------------------------
revision 1.4
date: 2017/10/09 04:49:51; author: root; state: Exp; lines: +1 -1
i is take a char.
----------------------------
revision 1.3
date: 2017/10/09 04:47:06; author: root; state: Exp; lines: +3 -3
ret is declear as int type and "" is remove from exit function.
----------------------------
revision 1.2
date: 2017/10/09 04:44:49; author: root; state: Exp; lines: +5 -5
eof is taken as value.
----------------------------
revision 1.1
date: 2017/10/06 11:49:33; author: root; state: Exp;
Initial revision
=============================================================================
RCS file: codelength.c,v
Working file: codelength.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
This function is used to determined the codelength of ma and return it's value.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:19:49; author: root; state: Exp;
Initial revision
=============================================================================
RCS file: compression2.c,v
Working file: compression2.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
compress2() initalize.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:39:00; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: compression3.c,v
Working file: compression3.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
compress3() initialize.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:39:15; author: root; state: Exp;
Initial revision

sg1407217

RCS file: compression4.c,v
Working file: compression4.c
head: 1.12
branch:
locks: strict
        root: 1.12
access list:
symbolic names:
keyword substitution: kv
total revisions: 12;    selected revisions: 12
description:
----------------------------
revision 1.12   locked by: root;
date: 2017/10/12 17:37:49; author: root; state: Exp; lines: +4 -2
*** empty log message ***
----------------------------
revision 1.11
date: 2017/10/12 08:09:31; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.10
date: 2017/10/12 08:08:59; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.9
date: 2017/10/12 08:06:30; author: root; state: Exp; lines: +8 -1
special case is included when the no. of character is odd.
we append 0x0f at last byte to form ascii value of that byte.
and write in our compressed file.
----------------------------
revision 1.8
date: 2017/10/10 11:20:19; author: root; state: Exp; lines: +10 -2
*** empty log message ***
----------------------------
revision 1.7
date: 2017/10/10 11:17:45; author: root; state: Exp; lines: +3 -3
*** empty log message ***
----------------------------
revision 1.6
date: 2017/10/10 11:09:47; author: root; state: Exp; lines: +9 -3
*** empty log message ***
----------------------------
revision 1.5
date: 2017/10/10 11:07:20; author: root; state: Exp; lines: +2 -2
typo
----------------------------
revision 1.4
date: 2017/10/10 10:49:50; author: root; state: Exp; lines: +1 -1
*** empty log message ***
----------------------------
revision 1.3
date: 2017/10/10 10:49:17; author: root; state: Exp; lines: +6 -6
*** empty log message ***
----------------------------
revision 1.2
date: 2017/10/10 10:45:30; author: root; state: Exp; lines: +3 -3
*** empty log message ***
----------------------------
revision 1.1
date: 2017/10/10 10:42:32; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: compression5.c,v
Working file: compression5.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
compress5() initalize.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:39:39; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: compression6.c,v
Working file: compression6.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
compress6() initalized.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:39:51; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: compression7.c,v
Working file: compression7.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
compress7() initalized.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/10 05:40:05; author: root; state: Exp;
Initial revision
=============================================================================
RCS file: decompression.c,v
Working file: decompression.c
head: 1.2
branch:
locks: strict
        root: 1.2
access list:
symbolic names:
keyword substitution: kv
total revisions: 2;     selected revisions: 2
description:
In this decompression message is displayed.
----------------------------
revision 1.2    locked by: root;
date: 2017/10/12 17:19:00; author: root; state: Exp; lines: +51 -2
In this compressed file is taken and store in an array.
and one decompressed file is make.
----------------------------
revision 1.1
date: 2017/10/06 06:08:05; author: root; state: Exp;
Initial revision
=============================================================================

RCS file: extract.c,v
Working file: extract.c
head: 1.1
branch:
locks: strict
        root: 1.1
access list:
symbolic names:
keyword substitution: kv
total revisions: 1;     selected revisions: 1
description:
In this extract function is initalize.
the purpose of it to extract the original character from our asii code had maken.
----------------------------
revision 1.1    locked by: root;
date: 2017/10/12 17:19:53; author: root; state: Exp;
Initial revision

bhardwaj_himanshu

Hello Everyone

While i am doing Compression for a file whose co of distinct character(Encryption key) value is 11 when i compress this file it gone success but when i am compressing another file whose no of distinct character (encryption Key) value is 10,then it also gone success but the no of unique character now becomes 11 (10 distinct character of this file + 01 no of distinct character of previous file)
it overwrites only 10 characters but previous file has 11 distinct character so 01 character is still remaining in the file and append with this new 10 character.

If anyone have some idea about it why it is happening and how i can fix this please discuss.

Thank you

sg1407217

hi himanshu,
u can nullified the before writing data on same file using memset function. Which is used as:

void *memset(void *s, int c, size_t n);

The memset() function fills the first n bytes of the memory area pointed to by s with the constant byte c.
In your code u, can use the value of c is 0. so, that it make empty file before writing data on it.

bhardwaj_himanshu

thanks for your meaningful comment it is working now.

Multiple Data Compression and Encryption using iterative Technique. B105

Howdy, Stranger!

Categories