Support for software flow control

Correct termios2 baud rate calculation
Based on suggestion by joluxer <linuxer@quantentunnel.de>.
2021-10-28 11:35:11 +02:00 · 2021-06-18 17:10:22 +02:00 · 2021-06-18 16:17:13 +02:00 · 2021-06-18 16:17:13 +02:00 · 2021-06-18 16:17:13 +02:00 · 2021-06-18 16:17:13 +02:00
13 changed files with 690 additions and 340 deletions
@@ -20,7 +20,7 @@ Makefile

 # build
 *.o
-/ttynvt
+/src/ttynvt

 /ttynvt-*.tar.gz
 /ttynvt-*.tar.xz
@@ -0,0 +1,6 @@
+-kr -i4 --no-tabs --line-length79 -di16
+--braces-after-if-line --brace-indent0 --dont-cuddle-else --cuddle-do-while
+--blank-lines-after-declarations --blank-lines-after-procedures
+--break-after-boolean-operator
+--no-space-after-casts
+--else-endif-column0
@@ -1,20 +1,7 @@
-# Build ttynvt
-#

 MAINTAINERCLEANFILES = \
 	aclocal.m4 autom4te.cache compile config.h.in config.h.in~ configure \
 	depcomp install-sh missing \
-	Makefile.in
+	Makefile.in */Makefile.in

-CFLAGS_OPT  = -O3
-CFLAGS_WARN = -Wall -Wextra -Werror -Wno-unused-parameter
-
-bin_PROGRAMS = ttynvt
-
-ttynvt_SOURCES = \
-	ttynvt.c \
-	telnet_basic.c telnet_rfc2217.c telnet.h telnet_param.h
-
-ttynvt_CPPFLAGS = -I$(top_builddir) $(FUSE_CFLAGS) $(CFLAGS_OPT) $(CFLAGS_WARN)
-
-ttynvt_LDADD = $(FUSE_LIBS)
+SUBDIRS = src
@@ -1,4 +1,4 @@
-m4_define([pkg_version],  [0.10])
+m4_define([pkg_version],  [0.14])
 #m4_define([pkg_revision], [005])
 m4_define([pkg_version],  m4_ifdef([pkg_revision], [pkg_version.pkg_revision], [pkg_version]))

@@ -32,6 +32,7 @@ PKG_CHECK_MODULES(FUSE, fuse)
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([
 Makefile
+src/Makefile
 ])
 AC_OUTPUT

@@ -0,0 +1,12 @@
+
+CFLAGS_WARN = -Wall -Wextra -Werror -Wno-unused-parameter
+
+bin_PROGRAMS = ttynvt
+
+ttynvt_SOURCES = \
+	ttynvt.c nvt_log.c nvt_log.h \
+	telnet_basic.c telnet_rfc2217.c telnet.h telnet_param.h
+
+ttynvt_CPPFLAGS = -I$(top_builddir) $(FUSE_CFLAGS) $(CFLAGS_WARN)
+
+ttynvt_LDADD = $(FUSE_LIBS)
@@ -0,0 +1,84 @@
+/*
+ * Logging functions
+ */
+#include <stdarg.h>
+#include <stdio.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include "nvt_log.h"
+
+#include <sys/syscall.h>
+#define gettid() (pid_t)syscall(__NR_gettid)
+
+char            log_level = 0;
+char            log_stdout = 0;
+
+static const char *_hms_txt(char *buf, unsigned int len)
+{
+    struct timeval  tv;
+    unsigned int    sod, hh, mm, ss;
+
+    gettimeofday(&tv, NULL);
+
+    sod = tv.tv_sec % (24 * 3600);
+    hh = sod / 3600;
+    mm = (sod - hh * 3600) / 60;
+    ss = sod - hh * 3600 - mm * 60;
+    snprintf(buf, len, "%02d:%02d:%02d.%06d",
+             hh, mm, ss, (unsigned int)tv.tv_usec);
+
+    return buf;
+}
+
+void nvt_log(int prio, const char *fmt, ...)
+{
+    va_list         arg;
+    char            buf[256], buft[64];
+    const char     *eol;
+    int             len;
+
+    va_start(arg, fmt);
+    len = vsnprintf(buf, sizeof(buf), fmt, arg);
+
+    if (log_stdout)
+    {
+        eol = (len > 0 && buf[len - 1] != '\n') ? "\n" : "";
+        printf("%s: [%d] %d: %s%s",
+               _hms_txt(buft, sizeof(buft)), gettid(), prio, buf, eol);
+    }
+    else
+    {
+        syslog(prio, "[%d] %s", gettid(), buf);
+    }
+
+    va_end(arg);
+}
+
+#define BPL 16                  /* Bytes per line */
+
+void nvt_log_buf(int prio, const char *txt, const void *ptr_, unsigned int len)
+{
+    unsigned int    ix, i, imax;
+    int             l, n;
+    char            buf[128];
+    const unsigned char *ptr = ptr_;
+
+    for (ix = 0; ix < len || (len == 0 && ix == 0); ix += BPL)
+    {
+        n = snprintf(buf, sizeof(buf), "%s: %04x:", txt, ix);
+        if (n <= 0)
+            return;             /* Just playing it safe */
+        imax = (len - ix < BPL) ? len - ix : BPL;
+        for (i = 0; i < imax; i++)
+        {
+            l = snprintf(buf + n, sizeof(buf) - n, " %02x", *ptr++);
+            if (l <= 0)
+                return;         /* Just playing it safe */
+            n += l;
+        }
+        nvt_log(prio, "%s\n", buf);
+    }
+}
@@ -0,0 +1,26 @@
+/*
+ * Logging functions
+ */
+#ifndef NVT_LOG_H
+#define NVT_LOG_H
+
+#include <syslog.h>
+
+#define _PRF_N_(no) __attribute__((__format__(__printf__, (no), (no) + 1)))
+#define _PRF2_ _PRF_N_(2)
+
+_PRF2_ void     nvt_log(int prio, const char *fmt, ...);
+void            nvt_log_buf(int prio, const char *txt,
+                            const void *ptr, unsigned int len);
+
+extern char     log_level;
+extern char     log_stdout;
+
+#define DBG(...) \
+    if (log_level > 0) nvt_log(LOG_DEBUG, __VA_ARGS__)
+#define DBG2(...) \
+    if (log_level > 1) nvt_log(LOG_DEBUG, __VA_ARGS__)
+#define DBG2_BUF(txt, ptr, len) \
+    if (log_level > 1) nvt_log_buf(LOG_DEBUG, txt, ptr, len)
+
+#endif /* NVT_LOG_H */
@@ -31,7 +31,7 @@ extern tn_ctx_t *telnet_ctx_init(void *cctx, srv_tx_f * ftx, srv_rx_f * frx,

 extern int      telnet_open(tn_ctx_t * tcc);

-extern int      telnet_rx(tn_ctx_t * tcc, char *buf, size_t * plen);
+extern int      telnet_rx(tn_ctx_t * tcc, char *buf, int *plen);
 extern int      telnet_tx(tn_ctx_t * tcc, const char *buf, int len);

 extern void     telnet_set_opt(tn_ctx_t * tcc, int opt, int prm,
@@ -42,10 +42,10 @@ extern void     telnet_rfc2217_handle_opt(tn_ctx_t * tcc, int opt,

 extern void     telnet_rfc2217_cfg(tn_ctx_t * tcc, int cmd,
                                   const void *val, int nd);
-extern void     telnet_rfc2217_ctl(tn_ctx_t * tcc, int cmd);
+extern void     telnet_rfc2217_ctl(tn_ctx_t * tcc, unsigned int val);

 /*RFC2217 modem state*/
-#define TNS_STATE_CD     0x80
+#define TNS_STATE_DCD    0x80
 #define TNS_STATE_RI     0x40
 #define TNS_STATE_DSR    0x20
 #define TNS_STATE_CTS    0x10
@@ -60,11 +60,12 @@ extern void     telnet_rfc2217_ctl(tn_ctx_t * tcc, int cmd);

 /*RFC2217 control commands*/
 #define TNS_CTL_NOFLOW      1
-#define TNS_CTL_XONOFF      2
+#define TNS_CTL_XONOFF_OUT  2
 #define TNS_CTL_CTSRTS      3
 #define TNS_CTL_DTR_ON      8
 #define TNS_CTL_DTR_OFF     9
 #define TNS_CTL_RTS_ON     11
 #define TNS_CTL_RTS_OFF    12
+#define TNS_CTL_XONOFF_IN  15

 #endif /*TELNET_H */
@@ -121,18 +121,18 @@ static void _telnet_handle_opt(tn_ctx_t * tcc, int opt,
    }
 }

-int telnet_rx(tn_ctx_t * tcc, char *buf, size_t * plen)
+int telnet_rx(tn_ctx_t * tcc, char *buf, int *plen)
 {
    char           *s, *p;
    unsigned char  *pu;
-    size_t          len, rem;
+    int             len, rem;
    int             np, nd;
    int             b1, b2;

    len = *plen;
    tcc->bytes_rx += len;

-    if (len < (size_t) tcc->off_rx)
+    if (len < (int)tcc->off_rx)
        tcc->off_rx = 0;

    for (s = buf + tcc->off_rx, rem = len - tcc->off_rx; rem > 0; s = p)
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2018 Lars Thrane A/S
+ * SPDX-License-Identifier: GPL-2.0
+ *
+ * Telnet parameters
+ */
+#ifndef TELNET_PARAM_H
+#define TELNET_PARAM_H
+
+
+/*
+ * Telnet commands
+ */
+
+#define TNC_F0_SE   (0xf0)      /* End of subnegotiation parameters */
+#define TNC_F1_NOP  (0xf1)      /* No operation                     */
+#define TNC_F2_MARK (0xf2)      /* The data stream portion of a Synch.
+                                   This should always be accompanied
+                                   by a TCP Urgent notification. */
+#define TNC_F3_BRK  (0xf3)      /* NVT character BRK.               */
+#define TNC_F4_IP   (0xf4)      /* The function IP (interrupt process) */
+#define TNC_F5_AO   (0xf5)      /* The function AO (abort output)   */
+#define TNC_F6_AYT  (0xf6)      /* The function AYT (are you there) */
+#define TNC_F7_EC   (0xf7)      /* The function EC (erase charceter) */
+#define TNC_F8_EL   (0xf8)      /* The function EL (erase line)     */
+#define TNC_F9_GA   (0xf9)      /* The GA signal (go ahead)         */
+#define TNC_FA_SB   (0xfa)      /* Subnegotiation begin             */
+#define TNC_FB_WILL (0xfb)      /* Indicates the desire to begin
+                                   performing, or confirmation that
+                                   you are now performing, the
+                                   indicated option. */
+#define TNC_FC_WONT (0xfc)      /* Indicates the refusal to perform,
+                                   or continue performing, the
+                                   indicated option. */
+#define TNC_FD_DO   (0xfd)      /* Indicates the request that the
+                                   other party perform, or
+                                   confirmation that you are expecting
+                                   the other party to perform, the
+                                   indicated option. */
+#define TNC_FE_DONT (0xfe)      /* Indicates the demand that the
+                                   other party stop performing,
+                                   or confirmation that you are no
+                                   longer expecting the other party
+                                   to perform, the indicated option. */
+#define TNC_FF_IAC  (0xff)      /* Interpret as Command / data byte */
+
+
+/*
+ * Telnet options
+ */
+
+/*
+ * https://www.iana.org/assignments/telnet-options/telnet-options.xhtml
+ *
+ *   0  00  Binary Transmission                 [RFC856]
+ *   1  01  Echo                                [RFC857]
+ *   2  02  Reconnection                        [DDN Protocol Handbook, ... ]
+ *   3  03  Suppress Go Ahead                   [RFC858]
+ *   4  04  Approx Message Size Negotiation     ["The Ethernet, ..." ]
+ *   5  05  Status                              [RFC859]
+ *   6  06  Timing Mark                         [RFC860]
+ *   7  07  Remote Controlled Trans and Echo    [RFC726]
+ *   8  08  Output Line Width                   [DDN Protocol Handbook, ... ]
+ *   9  09  Output Page Size                    [DDN Protocol Handbook, ... ]
+ *  10  0a  Output Carriage-Return Disposition  [RFC652]
+ *  11  0b  Output Horizontal Tab Stops         [RFC653]
+ *  12  0c  Output Horizontal Tab Disposition   [RFC654]
+ *  13  0d  Output Formfeed Disposition         [RFC655]
+ *  14  0e  Output Vertical Tabstops            [RFC656]
+ *  15  0f  Output Vertical Tab Disposition     [RFC657]
+ *  16  10  Output Linefeed Disposition         [RFC658]
+ *  17  11  Extended ASCII                      [RFC698]
+ *  18  12  Logout                              [RFC727]
+ *  19  13  Byte Macro                          [RFC735]
+ *  20  14  Data Entry Terminal                 [RFC1043][RFC732]
+ *  21  15  SUPDUP                              [RFC736][RFC734]
+ *  22  16  SUPDUP Output                       [RFC749]
+ *  23  17  Send Location                       [RFC779]
+ *  24  18  Terminal Type                       [RFC1091]
+ *  25  19  End of Record                       [RFC885]
+ *  26  1a  TACACS User Identification          [RFC927]
+ *  27  1b  Output Marking                      [RFC933]
+ *  28  1c  Terminal Location Number            [RFC946]
+ *  29  1d  Telnet 3270 Regime                  [RFC1041]
+ *  30  1e  X.3 PAD                             [RFC1053]
+ *  31  1f  Negotiate About Window Size         [RFC1073]
+ *  32  20  Terminal Speed                      [RFC1079]
+ *  33  21  Remote Flow Control                 [RFC1372]
+ *  34  22  Linemode                            [RFC1184]
+ *  35  23  X Display Location                  [RFC1096]
+ *  36  24  Environment Option                  [RFC1408]
+ *  37  25  Authentication Option               [RFC2941]
+ *  38  26  Encryption Option                   [RFC2946]
+ *  39  27  New Environment Option              [RFC1572]
+ *  40  28  TN3270E                             [RFC2355]
+ *  41  29  XAUTH                               [Rob_Earhart]
+ *  42  2a  CHARSET                             [RFC2066]
+ *  43  2b  Telnet Remote Serial Port (RSP)     [Robert_Barnes]
+ *  44  2c  Com Port Control Option             [RFC2217]
+ *  45  2d  Telnet Suppress Local Echo          [Wirt_Atmar]
+ *  46  2e  Telnet Start TLS                    [Michael_Boe]
+ *  47  2f  KERMIT                              [RFC2840]
+ *  48  30  SEND-URL                            [David_Croft]
+ *  49  31  FORWARD_X                           [Jeffrey_Altman]
+ *  50-137  32-89  Unassigned                   [IANA]
+ * 138  8a  TELOPT PRAGMA LOGON                 [Steve_McGregory]
+ * 139  8b  TELOPT SSPI LOGON                   [Steve_McGregory]
+ * 140  8c  TELOPT PRAGMA HEARTBEAT             [Steve_McGregory]
+ * 141-254  8d-fe  Unassigned
+ * 255  ff  Extended-Options-List               [RFC861]
+*/
+
+#define TNO_BINARY   0          /* 00  Binary Transmission          */
+#define TNO_ECHO     1          /* 01  Echo                         */
+#define TNO_SUPP_GA  3          /* 03  Suppress Go Ahead            */
+#define TNO_LOGOUT  18          /* 12  Logout                       */
+#define TNO_TTYP    24          /* 18  Terminal Type                */
+#define TNO_NAWS    31          /* 1f  Negotiate About Window Size  */
+#define TNO_NEO     39          /* 27  New Environment Option       */
+#define TNO_CPCO    44          /* 2c  RFC 2217                     */
+#define TNO_KERMIT  47          /* 2f  Kermit                       */
+
+#endif /* TELNET_PARAM_H */
@@ -43,10 +43,12 @@ void telnet_rfc2217_cfg(tn_ctx_t * tcc, int cmd, const void *val, int nd)
    telnet_set_opt(tcc, TNO_CPCO, cmd, val, nd);
 }

-void telnet_rfc2217_ctl(tn_ctx_t * tcc, int cmd)
+void telnet_rfc2217_ctl(tn_ctx_t * tcc, unsigned int val)
 {
+    unsigned char   byte = val;
+
    if (!tcc->mode_rfc2217)
        return;

-    telnet_set_opt(tcc, TNO_CPCO, TNS_SET_CONTROL, &cmd, 1);
+    telnet_set_opt(tcc, TNO_CPCO, TNS_SET_CONTROL, &byte, 1);
 }
@@ -1,123 +0,0 @@
-/*
- * Copyright (c) 2018 Lars Thrane A/S
- * SPDX-License-Identifier: GPL-2.0
- *
- * Telnet parameters
- */
-#ifndef TELNET_PARAM_H
-#define TELNET_PARAM_H
-
-
-/*
- * Telnet commands
- */
-
-#define TNC_F0_SE   (0xf0)      /* End of subnegotiation parameters */
-#define TNC_F1_NOP  (0xf1)      /* No operation                     */
-#define TNC_F2_MARK (0xf2)      /* The data stream portion of a Synch.
-                                   This should always be accompanied
-                                   by a TCP Urgent notification. */
-#define TNC_F3_BRK  (0xf3)      /* NVT character BRK.               */
-#define TNC_F4_IP   (0xf4)      /* The function IP (interrupt process) */
-#define TNC_F5_AO   (0xf5)      /* The function AO (abort output)   */
-#define TNC_F6_AYT  (0xf6)      /* The function AYT (are you there) */
-#define TNC_F7_EC   (0xf7)      /* The function EC (erase charceter) */
-#define TNC_F8_EL   (0xf8)      /* The function EL (erase line)     */
-#define TNC_F9_GA   (0xf9)      /* The GA signal (go ahead)         */
-#define TNC_FA_SB   (0xfa)      /* Subnegotiation begin             */
-#define TNC_FB_WILL (0xfb)      /* Indicates the desire to begin
-                                   performing, or confirmation that
-                                   you are now performing, the
-                                   indicated option. */
-#define TNC_FC_WONT (0xfc)      /* Indicates the refusal to perform,
-                                   or continue performing, the
-                                   indicated option. */
-#define TNC_FD_DO   (0xfd)      /* Indicates the request that the
-                                   other party perform, or
-                                   confirmation that you are expecting
-                                   the other party to perform, the
-                                   indicated option. */
-#define TNC_FE_DONT (0xfe)      /* Indicates the demand that the
-                                   other party stop performing,
-                                   or confirmation that you are no
-                                   longer expecting the other party
-                                   to perform, the indicated option. */
-#define TNC_FF_IAC  (0xff)      /* Interpret as Command / data byte */
-
-
-/*
- * Telnet options
- */
-
-/*
- * https://www.iana.org/assignments/telnet-options/telnet-options.xhtml
- *
- * 0 	Binary Transmission					[RFC856]
- * 1 	Echo								[RFC857]
- * 2 	Reconnection						[DDN Protocol Handbook, ... ]
- * 3 	Suppress Go Ahead					[RFC858]
- * 4 	Approx Message Size Negotiation		["The Ethernet, ... ]
- * 5 	Status								[RFC859]
- * 6 	Timing Mark							[RFC860]
- * 7 	Remote Controlled Trans and Echo	[RFC726]
- * 8 	Output Line Width					[DDN Protocol Handbook, ... ]
- * 9 	Output Page Size					[DDN Protocol Handbook, ... ]
- * 10 	Output Carriage-Return Disposition	[RFC652]
- * 11 	Output Horizontal Tab Stops			[RFC653]
- * 12 	Output Horizontal Tab Disposition	[RFC654]
- * 13 	Output Formfeed Disposition			[RFC655]
- * 14 	Output Vertical Tabstops			[RFC656]
- * 15 	Output Vertical Tab Disposition		[RFC657]
- * 16 	Output Linefeed Disposition			[RFC658]
- * 17 	Extended ASCII						[RFC698]
- * 18 	Logout								[RFC727]
- * 19 	Byte Macro							[RFC735]
- * 20 	Data Entry Terminal					[RFC1043][RFC732]
- * 21 	SUPDUP								[RFC736][RFC734]
- * 22 	SUPDUP Output						[RFC749]
- * 23 	Send Location						[RFC779]
- * 24 	Terminal Type						[RFC1091]
- * 25 	End of Record						[RFC885]
- * 26 	TACACS User Identification			[RFC927]
- * 27 	Output Marking						[RFC933]
- * 28 	Terminal Location Number			[RFC946]
- * 29 	Telnet 3270 Regime					[RFC1041]
- * 30 	X.3 PAD								[RFC1053]
- * 31 	Negotiate About Window Size			[RFC1073]
- * 32 	Terminal Speed						[RFC1079]
- * 33 	Remote Flow Control					[RFC1372]
- * 34 	Linemode							[RFC1184]
- * 35 	X Display Location					[RFC1096]
- * 36 	Environment Option					[RFC1408]
- * 37 	Authentication Option				[RFC2941]
- * 38 	Encryption Option					[RFC2946]
- * 39 	New Environment Option				[RFC1572]
- * 40 	TN3270E								[RFC2355]
- * 41 	XAUTH								[Rob_Earhart]
- * 42 	CHARSET								[RFC2066]
- * 43 	Telnet Remote Serial Port (RSP)		[Robert_Barnes]
- * 44 	Com Port Control Option				[RFC2217]
- * 45 	Telnet Suppress Local Echo			[Wirt_Atmar]
- * 46 	Telnet Start TLS					[Michael_Boe]
- * 47 	KERMIT								[RFC2840]
- * 48 	SEND-URL							[David_Croft]
- * 49 	FORWARD_X							[Jeffrey_Altman]
- * 50-137 	Unassigned						[IANA]
- * 138 	TELOPT PRAGMA LOGON					[Steve_McGregory]
- * 139 	TELOPT SSPI LOGON					[Steve_McGregory]
- * 140 	TELOPT PRAGMA HEARTBEAT				[Steve_McGregory]
- * 141-254 	Unassigned
- * 255 	Extended-Options-List				[RFC861]
-*/
-
-#define TNO_BINARY   0          /* Binary Transmission          */
-#define TNO_ECHO     1          /* Echo                         */
-#define TNO_SUPP_GA  3          /* Suppress Go Ahead            */
-#define TNO_LOGOUT  18          /* Logout                       */
-#define TNO_TTYP    24          /* Terminal Type                */
-#define TNO_NAWS    31          /* Negotiate About Window Size  */
-#define TNO_NEO     39          /* New Environment Option       */
-#define TNO_CPCO    44          /* RFC 2217                     */
-#define TNO_KERMIT  47          /* Kermit                       */
-
-#endif /* TELNET_PARAM_H */
Author	SHA1	Message	Date
Frank Rolsted Jensen	9cff495183	Support for software flow control	2021-10-28 11:35:11 +02:00
Kim Woelders	f759c0e3cc	Correct termios2 baud rate calculation Based on suggestion by joluxer <linuxer@quantentunnel.de>.	2021-06-18 17:10:22 +02:00
Kim Woelders	0606891b78	Add indent profile + formatting tweak	2021-06-18 16:17:13 +02:00
joluxer	899596fd5b	Use all baudrate for traditional termios known to linux kernel 5.10.	2021-06-18 16:17:13 +02:00
joluxer	a21ba0cb9c	Make some variable storage bit width agnostic for transport.	2021-06-18 16:17:13 +02:00
Kim Woelders	8f03384964	print_help(): Add missing options to run in foreground Suggested by joluxer <linuxer@quantentunnel.de>.	2021-06-18 16:17:13 +02:00
Kim Woelders	b314659125	Fix potentially incorrect speed check We don't know if tio is termios or termios2.	2021-06-18 07:21:53 +02:00
Kim Woelders	42a4e2e062	ttynvt_ioctl(): Cleanups around TCSET.. handling Avoid nested switches and unnecessary block level.	2021-06-18 07:21:53 +02:00
Kim Woelders	0b402cdb6b	Remove pointless CFLAGS_OPT It would normally be overridden by the default automake CFLAGS="-g -O2".	2021-06-14 18:35:10 +02:00
Kim Woelders	302ed6d796	Include asm/ioctls.h for TCSETSF2 and friends Some targets appear to need that.	2021-01-20 18:34:53 +01:00
Kim Woelders	bf11b1dd15	Add support for termios2 ioctls Based on patch by Thomas Shaddack <shaddack@shaddack.mauriceward.com> https://www.improwis.com/projects/sw_SerialOverIP_RFC2217/	2021-01-14 07:41:43 +01:00
Kim Woelders	33de2e875c	Add a couple of debug logs From patch by Thomas Shaddack <shaddack@shaddack.mauriceward.com> https://www.improwis.com/projects/sw_SerialOverIP_RFC2217/	2021-01-14 07:40:40 +01:00
Kim Woelders	eccd32fdfb	telnet_param.h: Show hex codes too Inspired by Thomas Shaddack <shaddack@shaddack.mauriceward.com> https://www.improwis.com/projects/sw_SerialOverIP_RFC2217/	2021-01-14 07:19:05 +01:00
Kim Woelders	089b733f27	Indent	2021-01-14 07:18:48 +01:00
Kim Woelders	41802ce7e9	Include poll.h, not sys/poll.h ... the posixly correct location.	2020-10-08 17:36:55 +02:00
Kim Woelders	e51a98e4b2	Handle CRTSCTS properly	2019-09-10 06:52:00 +02:00
Kim Woelders	9db6c5d83c	Move logging functions to separate file	2019-09-05 11:36:49 +02:00
Kim Woelders	e3675b9e89	Move ttynvt source to src/	2019-09-05 11:36:49 +02:00
Kim Woelders	cf6b334bcc	ttynvt version 0.14	2019-03-21 08:52:05 +01:00
Kim Woelders	09e96e72f7	Add some more debug	2019-03-21 08:46:08 +01:00
Kim Woelders	688fc53caf	Proper flow-control handling Patch by FRJ.	2019-03-21 08:45:36 +01:00
Kim Woelders	4d1d6978e4	Don't clear readable flag on poll When the slave becomes readable we set the pollin flag, and cleared it in ttynvt_poll(). So if ttynvt_poll() is called twice, the readable flag was lost. Now we clear it in ttynvt_read() if there actually are no more data to be read.	2019-01-16 11:17:18 +01:00
Kim Woelders	8f03aabe30	Add timestamp when logging to stdout	2018-10-31 12:09:37 +01:00
Kim Woelders	3cad2c060d	ttynvt version 0.13	2018-10-25 11:24:45 +02:00
Kim Woelders	89f8ec8018	Reorder MCR debug printouts More logical, IMO...	2018-10-25 11:19:46 +02:00
Kim Woelders	de0845a9ce	Consistently use DCD, not CD	2018-10-25 11:18:45 +02:00
Kim Woelders	732eb8da25	Refactor termios parsing for rfc2217 and debug And show the termios on TCGETS too.	2018-10-25 11:18:45 +02:00
Kim Woelders	0f95e0779e	Avoid close error on FD_MASTER after DCD drop	2018-10-25 11:18:45 +02:00
Kim Woelders	0cc9b58a65	Close master pty on DCD drop if not CLOCAL	2018-10-25 11:18:24 +02:00
Kim Woelders	314e4b1b99	Flushing ioctl fixups - Propagate TCFLSH to slave. - Actually send flush requests to server. - TCIFLUSH, TCOFLUSH, and TCIOFLUSH are not ioctls but TCFLSH arguments. - Re-enable read polls if input is flushed.	2018-10-25 07:27:21 +02:00
Kim Woelders	effca015a8	Fix running on big endian RFC2217 options with one byte values were always sent with value = 0.	2018-10-25 07:27:21 +02:00
Kim Woelders	85394b243e	ttynvt version 0.12	2018-10-17 14:53:59 +02:00
Kim Woelders	673ddd9739	Fix RFC2217 server death We now properly kick the connected clients hanging in reads (cu) instead of locking up.	2018-10-17 13:51:55 +02:00
Kim Woelders	1e05632ec0	Eliminate ttynvt_t::tmp_buf ttynvt_read() and _read_net() both used this buffer which could cause things to mess up entirely.	2018-10-17 11:15:00 +02:00
Kim Woelders	86aebe372e	Add TIOCSCTTY/TIOCNOTTY name decoding	2018-10-17 08:11:46 +02:00
Kim Woelders	71de4b1ab4	Set RTS if CRTSCTS is set	2018-10-17 08:11:46 +02:00
Kim Woelders	a05b17f142	Properly exit on SIGTERM Previously we could get hung when killed, e.g. when using cu. When using minicom or screen this problem did not seem to occur.	2018-10-17 08:11:46 +02:00
Kim Woelders	ef3d01556e	Properly initialize termios struct before use in ttynvt_open()	2018-10-17 08:11:46 +02:00
Kim Woelders	2fe0428d92	Use struct termios in ttynvt_t and drop static one. Also set termios on pty slave on init.	2018-10-17 08:11:03 +02:00
Kim Woelders	af3c3d4162	Always set POLLOUT on slave poll	2018-10-17 08:11:03 +02:00
Kim Woelders	540ddd5659	Fix polling of pty slave	2018-10-17 08:11:03 +02:00
Kim Woelders	6dc40e44e2	Enable debug logging data too	2018-10-17 08:11:03 +02:00
Kim Woelders	08e7fb1d7e	More debug	2018-10-17 08:11:03 +02:00
Kim Woelders	d85251400f	Optionally print debug to stdout	2018-10-17 08:11:03 +02:00
Kim Woelders	e8913f62af	Logging cleanups - Consistently use %m instead of strerror(errno) - Add some missing \n's	2018-10-17 08:11:03 +02:00
Kim Woelders	44ddf67386	Avoid (s)size_t for portability	2018-10-17 08:11:03 +02:00
Kim Woelders	2d993212c5	Cosmetics	2018-10-17 08:11:03 +02:00
Kim Woelders	00430e5f64	ttynvt version 0.11	2018-10-04 09:38:24 +02:00
Kim Woelders	1ded3b11d2	ICS-664: Fix "cu problem" In ttynvt_read(), the "interrupted" signal may be delivered after installing the handler (fuse_req_interrupt_func()) but before calling read(). If this happens the signal intended to be delivered while in the read() function call (SIGUSR2) is handled before the read(), and we may hang indefinitely.	2018-10-04 09:32:02 +02:00
Kim Woelders	bf21ada8c7	Indent	2018-10-03 15:06:52 +02:00
Frank Rolsted Jensen	e68e140ef0	ttynvt version 0.10	2018-09-12 14:04:23 +02:00
Frank Rolsted Jensen	02a2149c1f	Add LICENSE	2018-06-07 11:37:24 +00:00