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* keybox-search.c (blob_cmp_mail): Use case-insensitive compare 

because mail addresses are in general case insensitive (well
RFC2822 allows for case sensitive mailbox parts, but this is in
general considired a Bad Thing). Add additional substr parameter
to allow for substring matches within the mail address.  Change
all callers to pass this along.
(blob_cmp_name): Likewise but do the case-insensitive search only
in sub string mode.
(keybox_search): Implement MAILSUB and SUBSTR mode.

* stringhelp.c (ascii_memcasemem): New.
This commit is contained in:
Werner Koch 2002-02-25 18:18:18 +00:00
parent 488243f56e
commit 2a2d713359
2 changed files with 65 additions and 20 deletions
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12
kbx/ChangeLog
View File

@ -1,3 +1,15 @@
2002-02-25 Werner Koch <wk@gnupg.org>
* keybox-search.c (blob_cmp_mail): Use case-insensitive compare
because mail addresses are in general case insensitive (well
RFC2822 allows for case sensitive mailbox parts, but this is in
general considired a Bad Thing). Add additional substr parameter
to allow for substring matches within the mail address. Change
all callers to pass this along.
(blob_cmp_name): Likewise but do the case-insensitive search only
in sub string mode.
(keybox_search): Implement MAILSUB and SUBSTR mode.
2002-01-21 Werner Koch <wk@gnupg.org>
* keybox-search.c (keybox_search): Allow KEYDB_SEARCH_MODE_FPR20.

73
kbx/keybox-search.c
View File

@ -24,6 +24,7 @@
#include <string.h>
#include <assert.h>
#include "../jnlib/stringhelp.h" /* ascii_xxxx() */
#include "keybox-defs.h"
#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
@ -138,7 +139,8 @@ blob_cmp_fpr (KEYBOXBLOB blob, const unsigned char *fpr)
static int
blob_cmp_name (KEYBOXBLOB blob, int idx, const char *name, size_t namelen)
blob_cmp_name (KEYBOXBLOB blob, int idx,
const char *name, size_t namelen, int substr)
{
const unsigned char *buffer;
size_t length;
@ -190,8 +192,16 @@ blob_cmp_name (KEYBOXBLOB blob, int idx, const char *name, size_t namelen)
if (len < 2)
continue; /* empty name or 0 not stored */
len--;
if (len == namelen && !memcmp (buffer+off, name, len))
return 1; /* found */
if (substr)
{
if (ascii_memcasemem (buffer+off, len, name, namelen))
return 1; /* found */
}
else
{
if (len == namelen && !memcmp (buffer+off, name, len))
return 1; /* found */
}
}
return 0; /* not found */
}
@ -206,15 +216,23 @@ blob_cmp_name (KEYBOXBLOB blob, int idx, const char *name, size_t namelen)
return 0; /* out of bounds */
if (len < 1)
return 0; /* empty name */
return len == namelen && !memcmp (buffer+off, name, len);
if (substr)
{
return !!ascii_memcasemem (buffer+off, len, name, namelen);
}
else
{
return len == namelen && !memcmp (buffer+off, name, len);
}
}
}
/* compare all email addresses of the subject */
/* compare all email addresses of the subject. With SUBSTR given as
True a substring search is done in the mail address */
static int
blob_cmp_mail (KEYBOXBLOB blob, const char *name, size_t namelen)
blob_cmp_mail (KEYBOXBLOB blob, const char *name, size_t namelen, int substr)
{
const unsigned char *buffer;
size_t length;
@ -268,10 +286,18 @@ blob_cmp_mail (KEYBOXBLOB blob, const char *name, size_t namelen)
continue; /* empty name or trailing 0 not stored */
len--; /* one back */
if ( len < 3 || buffer[off+len] != '>')
continue; /* not a prober email address */
continue; /* not a proper email address */
len--;
if (len == namelen && !memcmp (buffer+off+1, name, len))
return 1; /* found */
if (substr)
{
if (ascii_memcasemem (buffer+off+1, len, name, namelen))
return 1; /* found */
}
else
{
if (len == namelen && !ascii_memcasecmp (buffer+off+1, name, len))
return 1; /* found */
}
}
return 0; /* not found */
}
@ -314,7 +340,7 @@ has_issuer (KEYBOXBLOB blob, const char *name)
return 0;
namelen = strlen (name);
return blob_cmp_name (blob, 0 /* issuer */, name, namelen);
return blob_cmp_name (blob, 0 /* issuer */, name, namelen, 0);
}
static int
@ -332,7 +358,7 @@ has_issuer_sn (KEYBOXBLOB blob, const char *name,
namelen = strlen (name);
return (blob_cmp_sn (blob, sn, snlen)
&& blob_cmp_name (blob, 0 /* issuer */, name, namelen));
&& blob_cmp_name (blob, 0 /* issuer */, name, namelen, 0));
}
static int
@ -356,11 +382,11 @@ has_subject (KEYBOXBLOB blob, const char *name)
return 0;
namelen = strlen (name);
return blob_cmp_name (blob, 1 /* subject */, name, namelen);
return blob_cmp_name (blob, 1 /* subject */, name, namelen, 0);
}
static int
has_subject_or_alt (KEYBOXBLOB blob, const char *name)
has_subject_or_alt (KEYBOXBLOB blob, const char *name, int substr)
{
size_t namelen;
@ -370,12 +396,13 @@ has_subject_or_alt (KEYBOXBLOB blob, const char *name)
return 0;
namelen = strlen (name);
return blob_cmp_name (blob, -1 /* all subject names*/, name, namelen);
return blob_cmp_name (blob, -1 /* all subject names*/, name,
namelen, substr);
}
static int
has_mail (KEYBOXBLOB blob, const char *name)
has_mail (KEYBOXBLOB blob, const char *name, int substr)
{
size_t namelen;
@ -387,7 +414,7 @@ has_mail (KEYBOXBLOB blob, const char *name)
namelen = strlen (name);
if (namelen && name[namelen-1] == '>')
namelen--;
return blob_cmp_mail (blob, name, namelen);
return blob_cmp_mail (blob, name, namelen, substr);
}
@ -564,15 +591,21 @@ keybox_search (KEYBOX_HANDLE hd, KEYBOX_SEARCH_DESC *desc, size_t ndesc)
never_reached ();
break;
case KEYDB_SEARCH_MODE_EXACT:
if (has_subject_or_alt (blob, desc[n].u.name))
if (has_subject_or_alt (blob, desc[n].u.name, 0))
goto found;
break;
case KEYDB_SEARCH_MODE_MAIL:
if (has_mail (blob, desc[n].u.name))
if (has_mail (blob, desc[n].u.name, 0))
goto found;
break;
case KEYDB_SEARCH_MODE_MAILSUB:
if (has_mail (blob, desc[n].u.name, 1))
goto found;
break;
case KEYDB_SEARCH_MODE_SUBSTR:
case KEYDB_SEARCH_MODE_MAILSUB:
if (has_subject_or_alt (blob, desc[n].u.name, 1))
goto found;
break;
case KEYDB_SEARCH_MODE_MAILEND:
case KEYDB_SEARCH_MODE_WORDS:
never_reached (); /* not yet implemented */