version 1.109, 2007/04/04 15:51:10
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version 1.110, 2007/07/23 10:57:23
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/* decode.c - ber input decoding routines */ |
/* decode.c - ber input decoding routines */ |
/* $OpenLDAP: pkg/ldap/libraries/liblber/decode.c,v 1.108 2007/03/23 14:27:38 hyc Exp $ */ |
/* $OpenLDAP: pkg/ldap/libraries/liblber/decode.c,v 1.109 2007/04/04 15:51:10 hallvard Exp $ */ |
/* This work is part of OpenLDAP Software <http://www.openldap.org/>. |
/* This work is part of OpenLDAP Software <http://www.openldap.org/>. |
* |
* |
* Copyright 1998-2007 The OpenLDAP Foundation. |
* Copyright 1998-2007 The OpenLDAP Foundation. |
Line 49 static ber_len_t ber_getnint LDAP_P((
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Line 49 static ber_len_t ber_getnint LDAP_P((
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int |
int |
ber_decode_oid( BerValue *in, BerValue *out ) |
ber_decode_oid( BerValue *in, BerValue *out ) |
{ |
{ |
unsigned char *der = (unsigned char *) in->bv_val; |
const unsigned char *der; |
unsigned long val, val1; |
unsigned long val; |
int i, len; |
unsigned val1; |
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ber_len_t i; |
char *ptr; |
char *ptr; |
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assert( in != NULL ); |
assert( in != NULL ); |
assert( out != NULL ); |
assert( out != NULL ); |
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/* expands by 5/2, and we add dots - call it 3 */ |
/* need 4 chars/inbyte + \0 for input={7f 7f 7f...} */ |
if ( !out->bv_val || out->bv_len < in->bv_len * 3 ) |
if ( !out->bv_val || (out->bv_len+3)/4 <= in->bv_len ) |
return -1; |
return -1; |
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val1 = der[0] / 40; |
ptr = NULL; |
val = der[0] - val1 * 40; |
der = (unsigned char *) in->bv_val; |
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len = sprintf( out->bv_val, "%ld.%ld", val1, val ); |
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ptr = out->bv_val + len; |
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val = 0; |
val = 0; |
for ( i=1; i<in->bv_len; i++ ) { |
for ( i=0; i < in->bv_len; i++ ) { |
val = val << 7; |
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val |= der[i] & 0x7f; |
val |= der[i] & 0x7f; |
if ( !( der[i] & 0x80 )) { |
if ( !( der[i] & 0x80 )) { |
ptr += sprintf( ptr, ".%ld", val ); |
if ( ptr == NULL ) { |
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/* Initial "x.y": val=x*40+y, x<=2, y<40 if x=2 */ |
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ptr = out->bv_val; |
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val1 = (val < 80 ? val/40 : 2); |
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val -= val1*40; |
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ptr += sprintf( ptr, "%u", val1 ); |
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} |
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ptr += sprintf( ptr, ".%lu", val ); |
val = 0; |
val = 0; |
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} else if ( val - 1UL < LBER_OID_COMPONENT_MAX >> 7 ) { |
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val <<= 7; |
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} else { |
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/* val would overflow, or is 0 from invalid initial 0x80 octet */ |
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return -1; |
} |
} |
} |
} |
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if ( ptr == NULL || val != 0 ) |
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return -1; |
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out->bv_len = ptr - out->bv_val; |
out->bv_len = ptr - out->bv_val; |
return 0; |
return 0; |
} |
} |