/*
+ * Copyright notice from original mutt:
* Copyright (C) 2001 Thomas Roessler <roessler@does-not-exist.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111, USA.
+ *
+ * This file is part of mutt-ng, see http://www.muttng.org/.
+ * It's licensed under the GNU General Public License,
+ * please see the file GPL in the top level source directory.
*/
/* This module peeks at a PGP signature and figures out the hash
* algorithm.
*/
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include "mutt.h"
+#include "handler.h"
#include "pgp.h"
#include "pgppacket.h"
#include "mime.h"
#include <string.h>
#include <ctype.h>
-static struct
-{
+#include "lib/debug.h"
+
+static struct {
short id;
const char *name;
-}
-HashAlgorithms[] =
-{
- { 1, "pgp-md5" },
- { 2, "pgp-sha1" },
- { 3, "pgp-ripemd160" },
- { 5, "pgp-md2" },
- { 6, "pgp-tiger192" },
- { 7, "pgp-haval-5-160" },
- { 8, "pgp-sha256" },
- { 9, "pgp-sha384" },
- { 10, "pgp-sha512" },
- { -1, NULL }
+} HashAlgorithms[] = {
+ {
+ 1, "pgp-md5"}, {
+ 2, "pgp-sha1"}, {
+ 3, "pgp-ripemd160"}, {
+ 5, "pgp-md2"}, {
+ 6, "pgp-tiger192"}, {
+ 7, "pgp-haval-5-160"}, {
+ 8, "pgp-sha256"}, {
+ 9, "pgp-sha384"}, {
+ 10, "pgp-sha512"}, {
+ -1, NULL}
};
static const char *pgp_hash_to_micalg (short id)
{
int i;
-
+
for (i = 0; HashAlgorithms[i].id >= 0; i++)
if (HashAlgorithms[i].id == id)
return HashAlgorithms[i].name;
return "x-unknown";
}
-static void pgp_dearmor (FILE *in, FILE *out)
+static void pgp_dearmor (FILE * in, FILE * out)
{
char line[HUGE_STRING];
- long start;
- long end;
+ off_t start;
+ off_t end;
char *r;
STATE state;
-
+
memset (&state, 0, sizeof (STATE));
state.fpin = in;
state.fpout = out;
-
+
/* find the beginning of ASCII armor */
-
- while ((r = fgets (line, sizeof (line), in)) != NULL)
- {
+
+ while ((r = fgets (line, sizeof (line), in)) != NULL) {
if (!strncmp (line, "-----BEGIN", 10))
break;
}
- if (r == NULL)
- {
- dprint (1, (debugfile, "pgp_dearmor: Can't find begin of ASCII armor.\n"));
+ if (r == NULL) {
+ debug_print (1, ("Can't find begin of ASCII armor.\n"));
return;
}
/* skip the armor header */
-
- while ((r = fgets (line, sizeof (line), in)) != NULL)
- {
+
+ while ((r = fgets (line, sizeof (line), in)) != NULL) {
SKIPWS (r);
- if (!*r) break;
+ if (!*r)
+ break;
}
- if (r == NULL)
- {
- dprint (1, (debugfile, "pgp_dearmor: Armor header doesn't end.\n"));
+ if (r == NULL) {
+ debug_print (1, ("Armor header doesn't end.\n"));
return;
}
-
+
/* actual data starts here */
- start = ftell (in);
-
+ start = ftello (in);
+
/* find the checksum */
-
- while ((r = fgets (line, sizeof (line), in)) != NULL)
- {
+
+ while ((r = fgets (line, sizeof (line), in)) != NULL) {
if (*line == '=' || !strncmp (line, "-----END", 8))
break;
}
- if (r == NULL)
- {
- dprint (1, (debugfile, "pgp_dearmor: Can't find end of ASCII armor.\n"));
+ if (r == NULL) {
+ debug_print (1, ("Can't find end of ASCII armor.\n"));
return;
}
-
- if ((end = ftell (in) - strlen (line)) < start)
- {
- dprint (1, (debugfile, "pgp_dearmor: end < start???\n"));
+
+ if ((end = ftello (in) - str_len (line)) < start) {
+ debug_print (1, ("end < start???\n"));
return;
}
-
- if (fseek (in, start, SEEK_SET) == -1)
- {
- dprint (1, (debugfile, "pgp_dearmor: Can't seekto start.\n"));
+
+ if (fseeko (in, start, SEEK_SET) == -1) {
+ debug_print (1, ("Can't seekto start.\n"));
return;
}
- mutt_decode_base64 (&state, end - start, 0, (iconv_t) -1);
+ mutt_decode_base64 (&state, end - start, 0, (iconv_t) - 1);
}
static short pgp_mic_from_packet (unsigned char *p, size_t len)
{
/* is signature? */
- if ((p[0] & 0x3f) != PT_SIG)
- {
- dprint (1, (debugfile, "pgp_mic_from_packet: tag = %d, want %d.\n",
- p[0]&0x3f, PT_SIG));
+ if ((p[0] & 0x3f) != PT_SIG) {
+ debug_print (1, ("tag = %d, want %d.\n", p[0] & 0x3f, PT_SIG));
return -1;
}
-
+
if (len >= 18 && p[1] == 3)
/* version 3 signature */
return (short) p[17];
else if (len >= 5 && p[1] == 4)
/* version 4 signature */
return (short) p[4];
- else
- {
- dprint (1, (debugfile, "pgp_mic_from_packet: Bad signature packet.\n"));
+ else {
+ debug_print (1, ("Bad signature packet.\n"));
return -1;
}
}
{
FILE *in = NULL;
FILE *out = NULL;
-
+
char tempfile[_POSIX_PATH_MAX];
-
+
unsigned char *p;
size_t l;
-
+
short rv = -1;
-
+
mutt_mktemp (tempfile);
- if ((out = safe_fopen (tempfile, "w+")) == NULL)
- {
+ if ((out = safe_fopen (tempfile, "w+")) == NULL) {
mutt_perror (tempfile);
goto bye;
}
unlink (tempfile);
-
- if ((in = fopen (fname, "r")) == NULL)
- {
+
+ if ((in = fopen (fname, "r")) == NULL) {
mutt_perror (fname);
goto bye;
}
-
+
pgp_dearmor (in, out);
rewind (out);
- if ((p = pgp_read_packet (out, &l)) != NULL)
- {
+ if ((p = pgp_read_packet (out, &l)) != NULL) {
rv = pgp_mic_from_packet (p, l);
}
- else
- {
- dprint (1, (debugfile, "pgp_find_hash: No packet.\n"));
+ else {
+ debug_print (1, ("No packet.\n"));
}
-
- bye:
-
+
+bye:
+
safe_fclose (&in);
safe_fclose (&out);
pgp_release_packet ();
{
return pgp_hash_to_micalg (pgp_find_hash (fname));
}
-
projects / apps / madmutt.git / blobdiff