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Diffstat (limited to 'camel/providers/nntp/camel-nntp-stream.c')
-rw-r--r--camel/providers/nntp/camel-nntp-stream.c462
1 files changed, 0 insertions, 462 deletions
diff --git a/camel/providers/nntp/camel-nntp-stream.c b/camel/providers/nntp/camel-nntp-stream.c
deleted file mode 100644
index 9072a8b75a..0000000000
--- a/camel/providers/nntp/camel-nntp-stream.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*-
- *
- * Author:
- * Michael Zucchi <notzed@ximian.com>
- *
- * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * 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 02111-1307
- * USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <errno.h>
-
-#include <string.h>
-#include <stdio.h>
-
-#include <glib.h>
-
-#include "camel-nntp-stream.h"
-
-extern int camel_verbose_debug;
-#define dd(x) (camel_verbose_debug?(x):0)
-
-static CamelObjectClass *parent_class = NULL;
-
-/* Returns the class for a CamelStream */
-#define CS_CLASS(so) CAMEL_NNTP_STREAM_CLASS(CAMEL_OBJECT_GET_CLASS(so))
-
-#define CAMEL_NNTP_STREAM_SIZE (4096)
-#define CAMEL_NNTP_STREAM_LINE (1024) /* maximum line size */
-
-static int
-stream_fill(CamelNNTPStream *is)
-{
- int left = 0;
-
- if (is->source) {
- left = is->end - is->ptr;
- memcpy(is->buf, is->ptr, left);
- is->end = is->buf + left;
- is->ptr = is->buf;
- left = camel_stream_read(is->source, is->end, CAMEL_NNTP_STREAM_SIZE - (is->end - is->buf));
- if (left > 0) {
- is->end += left;
- is->end[0] = '\n';
- return is->end - is->ptr;
- } else {
- dd(printf("NNTP_STREAM_FILL(ERROR): '%s'\n", strerror(errno)));
- return -1;
- }
- }
-
- return 0;
-}
-
-static ssize_t
-stream_read(CamelStream *stream, char *buffer, size_t n)
-{
- CamelNNTPStream *is = (CamelNNTPStream *)stream;
- char *o, *oe;
- unsigned char *p, *e, c;
- int state;
-
- if (is->mode != CAMEL_NNTP_STREAM_DATA || n == 0)
- return 0;
-
- o = buffer;
- oe = buffer + n;
- state = is->state;
-
- /* Need to copy/strip '.'s and whatnot */
- p = is->ptr;
- e = is->end;
-
- switch(state) {
- state_0:
- case 0: /* start of line, always read at least 3 chars */
- while (e - p < 3) {
- is->ptr = p;
- if (stream_fill(is) == -1)
- return -1;
- p = is->ptr;
- e = is->end;
- }
- if (p[0] == '.') {
- if (p[1] == '\r' && p[2] == '\n') {
- is->ptr = p+3;
- is->mode = CAMEL_NNTP_STREAM_EOD;
- is->state = 0;
- dd(printf("NNTP_STREAM_READ(%d):\n%.*s\n", o-buffer, o-buffer, buffer));
- return o-buffer;
- }
- p++;
- }
- state = 1;
- /* FALLS THROUGH */
- case 1: /* looking for next sol */
- while (o < oe) {
- c = *p++;
- if (c == '\n') {
- /* end of input sentinal check */
- if (p > e) {
- is->ptr = e;
- if (stream_fill(is) == -1)
- return -1;
- p = is->ptr;
- e = is->end;
- } else {
- *o++ = '\n';
- state = 0;
- goto state_0;
- }
- } else if (c != '\r') {
- *o++ = c;
- }
- }
- break;
- }
-
- is->ptr = p;
- is->state = state;
-
- dd(printf("NNTP_STREAM_READ(%d):\n%.*s\n", o-buffer, o-buffer, buffer));
-
- return o-buffer;
-}
-
-static ssize_t
-stream_write(CamelStream *stream, const char *buffer, size_t n)
-{
- CamelNNTPStream *is = (CamelNNTPStream *)stream;
-
- return camel_stream_write(is->source, buffer, n);
-}
-
-static int
-stream_close(CamelStream *stream)
-{
- /* nop? */
- return 0;
-}
-
-static int
-stream_flush(CamelStream *stream)
-{
- /* nop? */
- return 0;
-}
-
-static gboolean
-stream_eos(CamelStream *stream)
-{
- CamelNNTPStream *is = (CamelNNTPStream *)stream;
-
- return is->mode != CAMEL_NNTP_STREAM_DATA;
-}
-
-static int
-stream_reset(CamelStream *stream)
-{
- /* nop? reset literal mode? */
- return 0;
-}
-
-static void
-camel_nntp_stream_class_init (CamelStreamClass *camel_nntp_stream_class)
-{
- CamelStreamClass *camel_stream_class = (CamelStreamClass *)camel_nntp_stream_class;
-
- parent_class = camel_type_get_global_classfuncs( CAMEL_OBJECT_TYPE );
-
- /* virtual method definition */
- camel_stream_class->read = stream_read;
- camel_stream_class->write = stream_write;
- camel_stream_class->close = stream_close;
- camel_stream_class->flush = stream_flush;
- camel_stream_class->eos = stream_eos;
- camel_stream_class->reset = stream_reset;
-}
-
-static void
-camel_nntp_stream_init(CamelNNTPStream *is, CamelNNTPStreamClass *isclass)
-{
- /* +1 is room for appending a 0 if we need to for a line */
- is->ptr = is->end = is->buf = g_malloc(CAMEL_NNTP_STREAM_SIZE+1);
- is->lineptr = is->linebuf = g_malloc(CAMEL_NNTP_STREAM_LINE+1);
- is->lineend = is->linebuf + CAMEL_NNTP_STREAM_LINE;
-
- /* init sentinal */
- is->ptr[0] = '\n';
-
- is->state = 0;
- is->mode = CAMEL_NNTP_STREAM_LINE;
-}
-
-static void
-camel_nntp_stream_finalise(CamelNNTPStream *is)
-{
- g_free(is->buf);
- g_free(is->linebuf);
- if (is->source)
- camel_object_unref((CamelObject *)is->source);
-}
-
-CamelType
-camel_nntp_stream_get_type (void)
-{
- static CamelType camel_nntp_stream_type = CAMEL_INVALID_TYPE;
-
- if (camel_nntp_stream_type == CAMEL_INVALID_TYPE) {
- camel_nntp_stream_type = camel_type_register( camel_stream_get_type(),
- "CamelNNTPStream",
- sizeof( CamelNNTPStream ),
- sizeof( CamelNNTPStreamClass ),
- (CamelObjectClassInitFunc) camel_nntp_stream_class_init,
- NULL,
- (CamelObjectInitFunc) camel_nntp_stream_init,
- (CamelObjectFinalizeFunc) camel_nntp_stream_finalise );
- }
-
- return camel_nntp_stream_type;
-}
-
-/**
- * camel_nntp_stream_new:
- *
- * Returns a NULL stream. A null stream is always at eof, and
- * always returns success for all reads and writes.
- *
- * Return value: the stream
- **/
-CamelStream *
-camel_nntp_stream_new(CamelStream *source)
-{
- CamelNNTPStream *is;
-
- is = (CamelNNTPStream *)camel_object_new(camel_nntp_stream_get_type ());
- camel_object_ref((CamelObject *)source);
- is->source = source;
-
- return (CamelStream *)is;
-}
-
-/* Get one line from the nntp stream */
-int
-camel_nntp_stream_line(CamelNNTPStream *is, unsigned char **data, unsigned int *len)
-{
- register unsigned char c, *p, *o, *oe;
- int newlen, oldlen;
- unsigned char *e;
-
- if (is->mode == CAMEL_NNTP_STREAM_EOD) {
- *data = is->linebuf;
- *len = 0;
- return 0;
- }
-
- o = is->linebuf;
- oe = is->lineend - 1;
- p = is->ptr;
- e = is->end;
-
- /* Data mode, convert leading '..' to '.', and stop when we reach a solitary '.' */
- if (is->mode == CAMEL_NNTP_STREAM_DATA) {
- /* need at least 3 chars in buffer */
- while (e-p < 3) {
- is->ptr = p;
- if (stream_fill(is) == -1)
- return -1;
- p = is->ptr;
- e = is->end;
- }
-
- /* check for isolated '.\r\n' or begging of line '.' */
- if (p[0] == '.') {
- if (p[1] == '\r' && p[2] == '\n') {
- is->ptr = p+3;
- is->mode = CAMEL_NNTP_STREAM_EOD;
- *data = is->linebuf;
- *len = 0;
- is->linebuf[0] = 0;
-
- dd(printf("NNTP_STREAM_LINE(END)\n"));
-
- return 0;
- }
- p++;
- }
- }
-
- while (1) {
- while (o < oe) {
- c = *p++;
- if (c == '\n') {
- /* sentinal? */
- if (p> e) {
- is->ptr = e;
- if (stream_fill(is) == -1)
- return -1;
- p = is->ptr;
- e = is->end;
- } else {
- is->ptr = p;
- *data = is->linebuf;
- *len = o - is->linebuf;
- *o = 0;
-
- dd(printf("NNTP_STREAM_LINE(%d): '%s'\n", *len, *data));
-
- return 1;
- }
- } else if (c != '\r') {
- *o++ = c;
- }
- }
-
- /* limit this for bad server data? */
- oldlen = o - is->linebuf;
- newlen = (is->lineend - is->linebuf) * 3 / 2;
- is->lineptr = is->linebuf = g_realloc(is->linebuf, newlen);
- is->lineend = is->linebuf + newlen;
- oe = is->lineend - 1;
- o = is->linebuf + oldlen;
- }
-
- return -1;
-}
-
-/* returns -1 on error, 0 if last lot of data, >0 if more remaining */
-int camel_nntp_stream_gets(CamelNNTPStream *is, unsigned char **start, unsigned int *len)
-{
- int max;
- unsigned char *end;
-
- *len = 0;
-
- max = is->end - is->ptr;
- if (max == 0) {
- max = stream_fill(is);
- if (max <= 0)
- return max;
- }
-
- *start = is->ptr;
- end = memchr(is->ptr, '\n', max);
- if (end)
- max = (end - is->ptr) + 1;
- *start = is->ptr;
- *len = max;
- is->ptr += max;
-
- dd(printf("NNTP_STREAM_GETS(%s,%d): '%.*s'\n", end==NULL?"more":"last", *len, (int)*len, *start));
-
- return end == NULL?1:0;
-}
-
-void camel_nntp_stream_set_mode(CamelNNTPStream *is, camel_nntp_stream_mode_t mode)
-{
- is->mode = mode;
-}
-
-/* returns -1 on erorr, 0 if last data, >0 if more data left */
-int camel_nntp_stream_getd(CamelNNTPStream *is, unsigned char **start, unsigned int *len)
-{
- unsigned char *p, *e, *s;
- int state;
-
- *len = 0;
-
- if (is->mode == CAMEL_NNTP_STREAM_EOD)
- return 0;
-
- if (is->mode == CAMEL_NNTP_STREAM_LINE) {
- g_warning("nntp_stream reading data in line mode\n");
- return 0;
- }
-
- state = is->state;
- p = is->ptr;
- e = is->end;
-
- while (e - p < 3) {
- is->ptr = p;
- if (stream_fill(is) == -1)
- return -1;
- p = is->ptr;
- e = is->end;
- }
-
- s = p;
-
- do {
- switch(state) {
- case 0:
- /* check leading '.', ... */
- if (p[0] == '.') {
- if (p[1] == '\r' && p[2] == '\n') {
- is->ptr = p+3;
- *len = p-s;
- *start = s;
- is->mode = CAMEL_NNTP_STREAM_EOD;
- is->state = 0;
-
- dd(printf("NNTP_STREAM_GETD(%s,%d): '%.*s'\n", "last", *len, (int)*len, *start));
-
- return 0;
- }
-
- /* If at start, just skip '.', else return data upto '.' but skip it */
- if (p == s) {
- s++;
- p++;
- } else {
- is->ptr = p+1;
- *len = p-s;
- *start = s;
- is->state = 1;
-
- dd(printf("NNTP_STREAM_GETD(%s,%d): '%.*s'\n", "more", *len, (int)*len, *start));
-
- return 1;
- }
- }
- state = 1;
- case 1:
- /* Scan for sentinal */
- while ((*p++)!='\n')
- ;
-
- if (p > e) {
- p = e;
- } else {
- state = 0;
- }
- break;
- }
- } while ((e-p) >= 3);
-
- is->state = state;
- is->ptr = p;
- *len = p-s;
- *start = s;
-
- dd(printf("NNTP_STREAM_GETD(%s,%d): '%.*s'\n", "more", *len, (int)*len, *start));
-
- return 1;
-}
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