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Top Forums Programming Returning Strings from C program to Unix shell script Post 66350 by reborg on Sunday 13th of March 2005 02:03:50 PM
Old 03-13-2005
That's not really the way things are done in Unix.

There is an old tenet in Unix programming which says, if you have nothing to say don't say anything, in other words if there is no reason for output from your program don't have any. So taking that into account you should not have any debugging output.

That said you could make sure you have the correct information by making sure the outut of the "correct" printf has a well defined format, by prefixing it with something, like this.

Code:
printf("DECRYPTED_DATA %s", decrypted_password);

he the script would for example become
Code:
clear_text_password=$(my_C_program | awk '/DECRYPTED_DATA/{print $2}' )
if [[ $? -eq 0 ]] ; then
     #The password was returned correctly
     #Do whatever you like here
     echo "The decrypted value is: ${clear_text_password}
else
     echo "Password decryption failed"
     exit 1
fi

 

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LDAP_COMPARE(3) 							 1							   LDAP_COMPARE(3)

ldap_compare - Compare value of attribute found in entry specified with DN

SYNOPSIS
mixed ldap_compare (resource $link_identifier, string $dn, string $attribute, string $value) DESCRIPTION
Compare $value of $attribute with value of same attribute in an LDAP directory entry. PARAMETERS
o $link_identifier - An LDAP link identifier, returned by ldap_connect(3). o $dn - The distinguished name of an LDAP entity. o $attribute - The attribute name. o $value - The compared value. RETURN VALUES
Returns TRUE if $value matches otherwise returns FALSE. Returns -1 on error. EXAMPLES
The following example demonstrates how to check whether or not given password matches the one defined in DN specified entry. Example #1 Complete example of password check <?php $ds=ldap_connect("localhost"); // assuming the LDAP server is on this host if ($ds) { // bind if (ldap_bind($ds)) { // prepare data $dn = "cn=Matti Meikku, ou=My Unit, o=My Company, c=FI"; $value = "secretpassword"; $attr = "password"; // compare value $r=ldap_compare($ds, $dn, $attr, $value); if ($r === -1) { echo "Error: " . ldap_error($ds); } elseif ($r === true) { echo "Password correct."; } elseif ($r === false) { echo "Wrong guess! Password incorrect."; } } else { echo "Unable to bind to LDAP server."; } ldap_close($ds); } else { echo "Unable to connect to LDAP server."; } ?> NOTES
Warning ldap_compare(3) can NOT be used to compare BINARY values! PHP Documentation Group LDAP_COMPARE(3)
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