openldap-devel April 2024

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ldap_get_values() called on binary data - does this return an error, or garbage data?
by Graham Leggett 03 Apr '24

03 Apr '24

Hi all, Looking back in time to the definitions of ldap_get_values() and ldap_get_values_len(), we are told that "If the attribute values are binary in nature, and thus not suitable to be returned as an array of char *'s, the ldap_get_values_len() routine can be used instead." This has been historically vague - first off, what happens if an attempt is made to call ldap_get_values() on binary data, do you get an error, or garbage data? The source isn't giving me a clear answer. Second question is how do you know which of ldap_get_values() or ldap_get_values_len() to call? Obviously you can manually know this, but I'm interested in automated behaviour. What is the canonical way to discover that if you queried a jpegPhoto (for example) that the result would be binary? To be clear, the end goal it to patch the following documentation to make this clear: https://www.openldap.org/software/man.cgi?query=ldap_get_values&apropos=0&s… Regards, Graham --

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openldap-devel April 2024