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Define LDAP_NO_ATTRS if necessary.

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Commit 83aaac41c6 introduced the use of
LDAP_NO_ATTRS to avoid requesting a dummy attribute when doing search+bind
LDAP authentication.  It turns out that not all LDAP implementations define
that macro, but its value is fixed by the protocol so we can define it
ourselves if it's missing.

Author: Thomas Munro
Reported-By: Ashutosh Sharma
Discussion: https://postgr.es/m/CAE9k0Pm6FKCfPCiAr26-L_SMGOA7dT_k0%2B3pEbB8%2B-oT39xRpw%40mail.gmail.com
This commit is contained in:
Peter Eisentraut
2017-09-13 08:20:45 -04:00
parent 69835bc898
commit 1a2fdc99a4
1 changed files with 5 additions and 0 deletions
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5
src/backend/libpq/auth.c
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@ -2398,6 +2398,11 @@ InitializeLDAPConnection(Port *port, LDAP **ldap)
#define LPH_USERNAME "$username"
#define LPH_USERNAME_LEN (sizeof(LPH_USERNAME) - 1)
/* Not all LDAP implementations define this. */
#ifndef LDAP_NO_ATTRS
#define LDAP_NO_ATTRS "1.1"
#endif
/*
* Return a newly allocated C string copied from "pattern" with all
* occurrences of the placeholder "$username" replaced with "user_name".