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freebsd-ports/net/asterisk14/files/patch-apps::app_txfax.c
Maxim Sobolev 7dfc5ecd1b Fix build on 4.x. Untested due to the lack of 4.x system. 
No PORTREVISION bump since it doens't change package content.

Submitted by:	Andriy I Pylypenko <bamby@ua.fm>
2006-07-20 00:19:08 +00:00

327 lines
9.8 KiB
C
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$FreeBSD$
--- apps/app_txfax.c.orig
+++ apps/app_txfax.c
@@ -0,0 +1,320 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Trivial application to send a TIFF file as a FAX
+ *
+ * Copyright (C) 2003, Steve Underwood
+ *
+ * Steve Underwood <steveu@coppice.org>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#if !defined(__FreeBSD__) || __FreeBSD_version < 500028
+#include <inttypes.h>
+#else
+#include <stdint.h>
+#endif
+#include <pthread.h>
+#include <errno.h>
+#if !defined(__FreeBSD__) || __FreeBSD_version >= 503000
+#include <tgmath.h>
+#endif
+#include <tiffio.h>
+
+#include <spandsp.h>
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision:$")
+
+#include "asterisk/lock.h"
+#include "asterisk/file.h"
+#include "asterisk/logger.h"
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/module.h"
+#include "asterisk/translate.h"
+
+static char *tdesc = "Trivial FAX Transmit Application";
+
+static char *app = "TxFAX";
+
+static char *synopsis = "Send a FAX file";
+
+static char *descrip =
+" TxFAX(filename[|caller][|debug]): Send a given TIFF file to the channel as a FAX.\n"
+"The \"caller\" option makes the application behave as a calling machine,\n"
+"rather than the answering machine. The default behaviour is to behave as\n"
+"an answering machine.\n"
+"Uses LOCALSTATIONID to identify itself to the remote end.\n"
+" LOCALHEADERINFO to generate a header line on each page.\n"
+"Sets REMOTESTATIONID to the receiver CSID.\n"
+"Returns -1 when the user hangs up, or if the file does not exist.\n"
+"Returns 0 otherwise.\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+#define MAX_BLOCK_SIZE 240
+
+static void span_message(int level, const char *msg)
+{
+ int ast_level;
+
+ if (level == SPAN_LOG_WARNING)
+ ast_level = __LOG_WARNING;
+ else if (level == SPAN_LOG_WARNING)
+ ast_level = __LOG_WARNING;
+ else
+ ast_level = __LOG_DEBUG;
+ ast_log(ast_level, __FILE__, __LINE__, __PRETTY_FUNCTION__, msg);
+}
+/*- End of function --------------------------------------------------------*/
+
+static void t30_flush(t30_state_t *s, int which)
+{
+ //TODO:
+}
+/*- End of function --------------------------------------------------------*/
+
+static void phase_e_handler(t30_state_t *s, void *user_data, int result)
+{
+ struct ast_channel *chan;
+ char far_ident[21];
+
+ chan = (struct ast_channel *) user_data;
+ if (result == T30_ERR_OK)
+ {
+ t30_get_far_ident(s, far_ident);
+ pbx_builtin_setvar_helper(chan, "REMOTESTATIONID", far_ident);
+ }
+ else
+ {
+ ast_log(LOG_DEBUG, "==============================================================================\n");
+ ast_log(LOG_DEBUG, "Fax send not successful - result (%d) %s.\n", result, t30_completion_code_to_str(result));
+ ast_log(LOG_DEBUG, "==============================================================================\n");
+ }
+}
+/*- End of function --------------------------------------------------------*/
+
+static int txfax_exec(struct ast_channel *chan, void *data)
+{
+ int res = 0;
+ char source_file[256];
+ char *x;
+ char *s;
+ char *t;
+ char *v;
+ int option;
+ int len;
+ t30_state_t fax;
+ int calling_party;
+ int verbose;
+ int samples;
+
+ struct localuser *u;
+ struct ast_frame *inf = NULL;
+ struct ast_frame outf;
+
+ int original_read_fmt;
+ int original_write_fmt;
+
+ uint8_t __buf[sizeof(uint16_t)*MAX_BLOCK_SIZE + 2*AST_FRIENDLY_OFFSET];
+ uint8_t *buf = __buf + AST_FRIENDLY_OFFSET;
+
+ if (chan == NULL)
+ {
+ ast_log(LOG_WARNING, "Fax transmit channel is NULL. Giving up.\n");
+ return -1;
+ }
+
+ span_set_message_handler(span_message);
+
+ /* The next few lines of code parse out the filename and header from the input string */
+ if (data == NULL)
+ {
+ /* No data implies no filename or anything is present */
+ ast_log(LOG_WARNING, "Txfax requires an argument (filename)\n");
+ return -1;
+ }
+
+ calling_party = FALSE;
+ verbose = FALSE;
+ source_file[0] = '\0';
+
+ for (option = 0, v = s = data; v; option++, s++)
+ {
+ t = s;
+ v = strchr(s, '|');
+ s = (v) ? v : s + strlen(s);
+ strncpy((char *) buf, t, s - t);
+ buf[s - t] = '\0';
+ if (option == 0)
+ {
+ /* The first option is always the file name */
+ len = s - t;
+ if (len > 255)
+ len = 255;
+ strncpy(source_file, t, len);
+ source_file[len] = '\0';
+ }
+ else if (strncmp("caller", t, s - t) == 0)
+ {
+ calling_party = TRUE;
+ }
+ else if (strncmp("debug", t, s - t) == 0)
+ {
+ verbose = TRUE;
+ }
+ }
+
+ /* Done parsing */
+
+ LOCAL_USER_ADD(u);
+
+ if (chan->_state != AST_STATE_UP)
+ {
+ /* Shouldn't need this, but checking to see if channel is already answered
+ * Theoretically asterisk should already have answered before running the app */
+ res = ast_answer(chan);
+ }
+
+ if (!res)
+ {
+ original_read_fmt = chan->readformat;
+ if (original_read_fmt != AST_FORMAT_SLINEAR)
+ {
+ res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
+ if (res < 0)
+ {
+ ast_log(LOG_WARNING, "Unable to set to linear read mode, giving up\n");
+ return -1;
+ }
+ }
+ original_write_fmt = chan->writeformat;
+ if (original_write_fmt != AST_FORMAT_SLINEAR)
+ {
+ res = ast_set_write_format(chan, AST_FORMAT_SLINEAR);
+ if (res < 0)
+ {
+ ast_log(LOG_WARNING, "Unable to set to linear write mode, giving up\n");
+ res = ast_set_read_format(chan, original_read_fmt);
+ if (res)
+ ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", chan->name);
+ return -1;
+ }
+ }
+ fax_init(&fax, calling_party, NULL);
+ if (verbose)
+ fax.logging.level = SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW;
+
+ x = pbx_builtin_getvar_helper(chan, "LOCALSTATIONID");
+ if (x && x[0])
+ t30_set_local_ident(&fax, x);
+ x = pbx_builtin_getvar_helper(chan, "LOCALHEADERINFO");
+ if (x && x[0])
+ t30_set_header_info(&fax, x);
+ t30_set_tx_file(&fax, source_file, -1, -1);
+ //t30_set_phase_b_handler(&fax, phase_b_handler, chan);
+ //t30_set_phase_d_handler(&fax, phase_d_handler, chan);
+ t30_set_phase_e_handler(&fax, phase_e_handler, chan);
+ while (ast_waitfor(chan, -1) > -1)
+ {
+ inf = ast_read(chan);
+ if (inf == NULL)
+ {
+ res = -1;
+ break;
+ }
+ if (inf->frametype == AST_FRAME_VOICE)
+ {
+ if (fax_rx(&fax, inf->data, inf->samples))
+ break;
+ samples = (inf->samples <= MAX_BLOCK_SIZE) ? inf->samples : MAX_BLOCK_SIZE;
+ len = fax_tx(&fax, (int16_t *) &buf[AST_FRIENDLY_OFFSET], samples);
+ if (len)
+ {
+ memset(&outf, 0, sizeof(outf));
+ outf.frametype = AST_FRAME_VOICE;
+ outf.subclass = AST_FORMAT_SLINEAR;
+ outf.datalen = len*sizeof(int16_t);
+ outf.samples = len;
+ outf.data = &buf[AST_FRIENDLY_OFFSET];
+ outf.offset = AST_FRIENDLY_OFFSET;
+ if (ast_write(chan, &outf) < 0)
+ {
+ ast_log(LOG_WARNING, "Unable to write frame to channel; %s\n", strerror(errno));
+ break;
+ }
+ }
+ }
+ ast_frfree(inf);
+ }
+ if (inf == NULL)
+ {
+ ast_log(LOG_DEBUG, "Got hangup\n");
+ res = -1;
+ }
+ if (original_read_fmt != AST_FORMAT_SLINEAR)
+ {
+ res = ast_set_read_format(chan, original_read_fmt);
+ if (res)
+ ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", chan->name);
+ }
+ if (original_write_fmt != AST_FORMAT_SLINEAR)
+ {
+ res = ast_set_write_format(chan, original_write_fmt);
+ if (res)
+ ast_log(LOG_WARNING, "Unable to restore write format on '%s'\n", chan->name);
+ }
+ fax_release(&fax);
+ }
+ else
+ {
+ ast_log(LOG_WARNING, "Could not answer channel '%s'\n", chan->name);
+ }
+ LOCAL_USER_REMOVE(u);
+ return res;
+}
+/*- End of function --------------------------------------------------------*/
+
+int unload_module(void)
+{
+ STANDARD_HANGUP_LOCALUSERS;
+ return ast_unregister_application(app);
+}
+/*- End of function --------------------------------------------------------*/
+
+int load_module(void)
+{
+ return ast_register_application(app, txfax_exec, synopsis, descrip);
+}
+/*- End of function --------------------------------------------------------*/
+
+char *description(void)
+{
+ return tdesc;
+}
+/*- End of function --------------------------------------------------------*/
+
+int usecount(void)
+{
+ int res;
+
+ STANDARD_USECOUNT(res);
+ return res;
+}
+/*- End of function --------------------------------------------------------*/
+
+char *key(void)
+{
+ return ASTERISK_GPL_KEY;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/
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