Need help in character pointer Post: 302235662

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Top Forums Programming Need help in character pointer Post 302235662 by jagan_kalluri on Friday 12th of September 2008 11:27:22 AM

09-12-2008

Registered User

Need help in character pointer

Hi,

I am trying to divide my input to different type of out puts for some other use.

ex: logical_name : jkl00001

expected out put : model=jkl and num=00001

here is the code i actually written

/*******************************************************************/
void update_new_logical_name(char *logical_name)
/**********************************************************************/
{
int next=0,ret=0,n;
char model[4];
int num[6];
char *name;

name=logical_name;

for(n=0;n<3;n++)
{
model[n]=name[n];

}

model[4]='\0';
for(n=3;n<8;n++)
{
num[n-3]=name[n];
}
num[6]='\0';

#ifdef DEBUG

printf("\n\nmodel== '%s',number=='%d'\n",model,num);

#endif

}

by using the above code i am not able to print anything .num displays some address and model displays nothing.

Some body please correct me

I need it urgently.
Thx,
jagan

jagan_kalluri

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LEARN ABOUT OSX

rand_bytes

RAND_bytes(3)							      OpenSSL							     RAND_bytes(3)

NAME

       RAND_bytes, RAND_pseudo_bytes - generate random data

SYNOPSIS

	#include <openssl/rand.h>

	int RAND_bytes(unsigned char *buf, int num);

	int RAND_pseudo_bytes(unsigned char *buf, int num);

DESCRIPTION

       RAND_bytes() puts num cryptographically strong pseudo-random bytes into buf. An error occurs if the PRNG has not been seeded with enough
       randomness to ensure an unpredictable byte sequence.

       RAND_pseudo_bytes() puts num pseudo-random bytes into buf.  Pseudo-random byte sequences generated by RAND_pseudo_bytes() will be unique if
       they are of sufficient length, but are not necessarily unpredictable. They can be used for non-cryptographic purposes and for certain
       purposes in cryptographic protocols, but usually not for key generation etc.

       The contents of buf is mixed into the entropy pool before retrieving the new pseudo-random bytes unless disabled at compile time (see FAQ).

RETURN VALUES

       RAND_bytes() returns 1 on success, 0 otherwise. The error code can be obtained by ERR_get_error(3). RAND_pseudo_bytes() returns 1 if the
       bytes generated are cryptographically strong, 0 otherwise. Both functions return -1 if they are not supported by the current RAND method.

SEE ALSO

       rand(3), ERR_get_error(3), RAND_add(3)

HISTORY

       RAND_bytes() is available in all versions of SSLeay and OpenSSL.  It has a return value since OpenSSL 0.9.5. RAND_pseudo_bytes() was added
       in OpenSSL 0.9.5.

50								    2013-03-05							     RAND_bytes(3)