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Diffstat (limited to 'libraries/liblber/options.c')
| -rw-r--r-- | libraries/liblber/options.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/libraries/liblber/options.c b/libraries/liblber/options.c new file mode 100644 index 0000000..a31c8ec --- /dev/null +++ b/libraries/liblber/options.c @@ -0,0 +1,237 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1998-2022 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +#include "portable.h" + +#include <ac/stdlib.h> +#include <ac/string.h> +#include <ac/stdarg.h> +#include "lber-int.h" + +char ber_pvt_opt_on; /* used to get a non-NULL address for *_OPT_ON */ + +struct lber_options ber_int_options = { + LBER_UNINITIALIZED, 0, 0 }; + +static BerMemoryFunctions ber_int_memory_fns_datum; + +int +ber_get_option( + void *item, + int option, + void *outvalue) +{ + const BerElement *ber; + const Sockbuf *sb; + + if(outvalue == NULL) { + /* no place to get to */ + ber_errno = LBER_ERROR_PARAM; + return LBER_OPT_ERROR; + } + + if(item == NULL) { + switch ( option ) { + case LBER_OPT_BER_DEBUG: + * (int *) outvalue = ber_int_debug; + return LBER_OPT_SUCCESS; + + case LBER_OPT_MEMORY_INUSE: + /* The memory inuse is a global variable on kernel implementations. + * This means that memory debug is shared by all LDAP processes + * so for this variable to have much meaning, only one LDAP process + * should be running and memory inuse should be initialized to zero + * using the lber_set_option() function during startup. + * The counter is not accurate for multithreaded ldap applications. + */ +#ifdef LDAP_MEMORY_DEBUG + * (int *) outvalue = ber_int_meminuse; + return LBER_OPT_SUCCESS; +#else + return LBER_OPT_ERROR; +#endif + + case LBER_OPT_LOG_PRINT_FILE: + *((FILE**)outvalue) = (FILE*)ber_pvt_err_file; + return LBER_OPT_SUCCESS; + + case LBER_OPT_LOG_PRINT_FN: + *(BER_LOG_PRINT_FN *)outvalue = ber_pvt_log_print; + return LBER_OPT_SUCCESS; + } + + ber_errno = LBER_ERROR_PARAM; + return LBER_OPT_ERROR; + } + + ber = item; + sb = item; + + switch(option) { + case LBER_OPT_BER_OPTIONS: + assert( LBER_VALID( ber ) ); + * (int *) outvalue = ber->ber_options; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_DEBUG: + assert( LBER_VALID( ber ) ); + * (int *) outvalue = ber->ber_debug; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_REMAINING_BYTES: + assert( LBER_VALID( ber ) ); + *((ber_len_t *) outvalue) = ber_pvt_ber_remaining(ber); + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_TOTAL_BYTES: + assert( LBER_VALID( ber ) ); + *((ber_len_t *) outvalue) = ber_pvt_ber_total(ber); + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_BYTES_TO_WRITE: + assert( LBER_VALID( ber ) ); + *((ber_len_t *) outvalue) = ber_pvt_ber_write(ber); + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_MEMCTX: + assert( LBER_VALID( ber ) ); + *((void **) outvalue) = ber->ber_memctx; + return LBER_OPT_SUCCESS; + + default: + /* bad param */ + ber_errno = LBER_ERROR_PARAM; + break; + } + + return LBER_OPT_ERROR; +} + +int +ber_set_option( + void *item, + int option, + LDAP_CONST void *invalue) +{ + BerElement *ber; + Sockbuf *sb; + + if(invalue == NULL) { + /* no place to set from */ + ber_errno = LBER_ERROR_PARAM; + return LBER_OPT_ERROR; + } + + if(item == NULL) { + switch ( option ) { + case LBER_OPT_BER_DEBUG: + ber_int_debug = * (const int *) invalue; + return LBER_OPT_SUCCESS; + + case LBER_OPT_LOG_PRINT_FN: + ber_pvt_log_print = (BER_LOG_PRINT_FN) invalue; + return LBER_OPT_SUCCESS; + + case LBER_OPT_LOG_PRINT_FILE: + ber_pvt_err_file = (void *) invalue; + return LBER_OPT_SUCCESS; + + case LBER_OPT_MEMORY_INUSE: + /* The memory inuse is a global variable on kernel implementations. + * This means that memory debug is shared by all LDAP processes + * so for this variable to have much meaning, only one LDAP process + * should be running and memory inuse should be initialized to zero + * using the lber_set_option() function during startup. + * The counter is not accurate for multithreaded applications. + */ +#ifdef LDAP_MEMORY_DEBUG + ber_int_meminuse = * (int *) invalue; + return LBER_OPT_SUCCESS; +#else + return LBER_OPT_ERROR; +#endif + case LBER_OPT_MEMORY_FNS: + if ( ber_int_memory_fns == NULL ) + { + const BerMemoryFunctions *f = + (const BerMemoryFunctions *) invalue; + /* make sure all functions are provided */ + if(!( f->bmf_malloc && f->bmf_calloc + && f->bmf_realloc && f->bmf_free )) + { + ber_errno = LBER_ERROR_PARAM; + return LBER_OPT_ERROR; + } + + ber_int_memory_fns = &ber_int_memory_fns_datum; + + AC_MEMCPY(ber_int_memory_fns, f, + sizeof(BerMemoryFunctions)); + + return LBER_OPT_SUCCESS; + } + break; + + case LBER_OPT_LOG_PROC: + ber_int_log_proc = (BER_LOG_FN)invalue; + return LBER_OPT_SUCCESS; + } + + ber_errno = LBER_ERROR_PARAM; + return LBER_OPT_ERROR; + } + + ber = item; + sb = item; + + switch(option) { + case LBER_OPT_BER_OPTIONS: + assert( LBER_VALID( ber ) ); + ber->ber_options = * (const int *) invalue; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_DEBUG: + assert( LBER_VALID( ber ) ); + ber->ber_debug = * (const int *) invalue; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_REMAINING_BYTES: + assert( LBER_VALID( ber ) ); + ber->ber_end = &ber->ber_ptr[* (const ber_len_t *) invalue]; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_TOTAL_BYTES: + assert( LBER_VALID( ber ) ); + ber->ber_end = &ber->ber_buf[* (const ber_len_t *) invalue]; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_BYTES_TO_WRITE: + assert( LBER_VALID( ber ) ); + ber->ber_ptr = &ber->ber_buf[* (const ber_len_t *) invalue]; + return LBER_OPT_SUCCESS; + + case LBER_OPT_BER_MEMCTX: + assert( LBER_VALID( ber ) ); + ber->ber_memctx = *(void **)invalue; + return LBER_OPT_SUCCESS; + + default: + /* bad param */ + ber_errno = LBER_ERROR_PARAM; + break; + } + + return LBER_OPT_ERROR; +} |