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Prep for in-place parsing. Cache a ber_tag byte.

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No visible impact from these changes.
This commit is contained in:
Howard Chu 2002-01-06 02:23:36 +00:00
parent 0c36372134
commit b92e0011dd
2 changed files with 19 additions and 3 deletions
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20
libraries/liblber/decode.c
View File

@ -44,10 +44,16 @@ ber_get_tag( BerElement *ber )
assert( ber != NULL );
assert( LBER_VALID( ber ) );
if ( ber_read( ber, (char *) &xbyte, 1 ) != 1 ) {
if ( ber_pvt_ber_remaining( ber ) < 1 ) {
return LBER_DEFAULT;
}
if ( ber->ber_ptr == ber->ber_buf )
xbyte = *ber->ber_ptr;
else
xbyte = ber->ber_tag;
ber->ber_ptr++;
tag = xbyte;
if ( (xbyte & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) {
@ -146,6 +152,7 @@ ber_skip_tag( BerElement *ber, ber_len_t *len )
if( *len > (ber_len_t) ber_pvt_ber_remaining( ber ) ) {
return LBER_DEFAULT;
}
ber->ber_tag = *ber->ber_ptr;
return tag;
}
@ -161,11 +168,13 @@ ber_peek_tag(
*/
char *save;
ber_tag_t tag;
ber_tag_t tag, old;
old = ber->ber_tag;
save = ber->ber_ptr;
tag = ber_skip_tag( ber, len );
ber->ber_ptr = save;
ber->ber_tag = old;
return tag;
}
@ -213,6 +222,7 @@ ber_getnint(
} else {
*num = 0;
}
ber->ber_tag = *ber->ber_ptr;
return len;
}
@ -271,6 +281,7 @@ ber_get_stringb(
if ( (ber_len_t) ber_read( ber, buf, datalen ) != datalen ) {
return LBER_DEFAULT;
}
ber->ber_tag = *ber->ber_ptr;
buf[datalen] = '\0';
@ -423,6 +434,7 @@ ber_get_stringbv( BerElement *ber, struct berval *bv )
return LBER_DEFAULT;
}
bv->bv_val[bv->bv_len] = '\0';
ber->ber_tag = *ber->ber_ptr;
return tag;
}
@ -499,6 +511,7 @@ ber_get_bitstringa(
*buf = NULL;
return LBER_DEFAULT;
}
ber->ber_tag = *ber->ber_ptr;
*blen = datalen * 8 - unusedbits;
return tag;
@ -520,6 +533,7 @@ ber_get_null( BerElement *ber )
if ( len != 0 ) {
return LBER_DEFAULT;
}
ber->ber_tag = *ber->ber_ptr;
return( tag );
}
@ -558,6 +572,7 @@ ber_first_element(
*last = NULL;
return LBER_DEFAULT;
}
ber->ber_tag = *ber->ber_ptr;
*last = ber->ber_ptr + *len;
@ -743,6 +758,7 @@ ber_scanf ( BerElement *ber,
if ( (rc = ber_skip_tag( ber, &len )) == LBER_DEFAULT )
break;
ber->ber_ptr += len;
ber->ber_tag = *ber->ber_ptr;
break;
case '{': /* begin sequence */

2
libraries/liblber/io.c
View File

@ -594,7 +594,7 @@ fill_buffer:
}
if (ber->ber_buf==NULL) {
ber->ber_buf = (char *) LBER_MALLOC( ber->ber_len );
ber->ber_buf = (char *) LBER_MALLOC( ber->ber_len + 1 );
if (ber->ber_buf==NULL) {
return LBER_DEFAULT;
}