Patch from Alan Clucas (somewhat polished) providing command-line

options to select and configure serial port mode.

[originally from svn r8617]

cmdline.c

@@ -192,6 +192,16 @@ int cmdline_process_param(char *p, char *value, int need_save, Config *cfg)
 	SAVEABLE(0);
 	default_protocol = cfg->protocol = PROT_RAW;
     }
+    if (!strcmp(p, "-serial")) {
+	RETURN(1);
+	/* Serial is not NONNETWORK in an odd sense of the word */
+	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
+	SAVEABLE(0);
+	default_protocol = cfg->protocol = PROT_SERIAL;
+	/* The host parameter will already be loaded into cfg->host, so copy it across */
+	strncpy(cfg->serline, cfg->host, sizeof(cfg->serline) - 1);
+	cfg->serline[sizeof(cfg->serline) - 1] = '\0';
+    }
     if (!strcmp(p, "-v")) {
 	RETURN(1);
 	flags |= FLAG_VERBOSE;
@@ -435,7 +445,100 @@ int cmdline_process_param(char *p, char *value, int need_save, Config *cfg)
 	SAVEABLE(1);
 	cfg->addressfamily = ADDRTYPE_IPV6;
     }
+    if (!strcmp(p, "-sercfg")) {
+	char* nextitem;
+	RETURN(2);
+	UNAVAILABLE_IN(TOOLTYPE_FILETRANSFER | TOOLTYPE_NONNETWORK);
+	SAVEABLE(1);
+	if (cfg->protocol != PROT_SERIAL)
+	    cmdline_error("the -sercfg option can only be used with the "
+			  "serial protocol");
+	/* Value[0] contains one or more , separated values, like 19200,8,n,1,X */
+	nextitem = value;
+	while (nextitem[0] != '\0') {
+	    int length, skip;
+	    char *end = strchr(nextitem, ',');
+	    if (!end) {
+		length = strlen(nextitem);
+		skip = 0;
+	    } else {
+		length = end - nextitem;
+		nextitem[length] = '\0';
+		skip = 1;
+	    }
+	    if (length == 1) {
+		switch (*nextitem) {
+		  case '1':
+		    cfg->serstopbits = 2;
+		    break;
+		  case '2':
+		    cfg->serstopbits = 4;
+		    break;
 
+		  case '5':
+		    cfg->serdatabits = 5;
+		    break;
+		  case '6':
+		    cfg->serdatabits = 6;
+		    break;
+		  case '7':
+		    cfg->serdatabits = 7;
+		    break;
+		  case '8':
+		    cfg->serdatabits = 8;
+		    break;
+		  case '9':
+		    cfg->serdatabits = 9;
+		    break;
+
+		  case 'n':
+		    cfg->serparity = SER_PAR_NONE;
+		    break;
+		  case 'o':
+		    cfg->serparity = SER_PAR_ODD;
+		    break;
+		  case 'e':
+		    cfg->serparity = SER_PAR_EVEN;
+		    break;
+		  case 'm':
+		    cfg->serparity = SER_PAR_MARK;
+		    break;
+		  case 's':
+		    cfg->serparity = SER_PAR_SPACE;
+		    break;
+
+		  case 'N':
+		    cfg->serflow = SER_FLOW_NONE;
+		    break;
+		  case 'X':
+		    cfg->serflow = SER_FLOW_XONXOFF;
+		    break;
+		  case 'R':
+		    cfg->serflow = SER_FLOW_RTSCTS;
+		    break;
+		  case 'D':
+		    cfg->serflow = SER_FLOW_DSRDTR;
+		    break;
+
+		  default:
+		    cmdline_error("Unrecognised suboption \"-sercfg %c\"",
+				  *nextitem);
+		}
+	    } else if (length == 3 && !strncmp(nextitem,"1.5",3)) {
+		/* Messy special case */
+		cfg->serstopbits = 3;
+	    } else {
+		int serspeed = atoi(nextitem);
+		if (serspeed != 0) {
+		    cfg->serspeed = serspeed;
+		} else {
+		    cmdline_error("Unrecognised suboption \"-sercfg %s\"",
+				  nextitem);
+		}
+	    }
+	    nextitem += length + skip;
+	}
+    }
     return ret;			       /* unrecognised */
 }
 

doc/index.but

@@ -206,6 +206,7 @@ saved sessions from
 \IM{-raw} \c{-raw} command-line option
 \IM{-rlogin} \c{-rlogin} command-line option
 \IM{-ssh} \c{-ssh} command-line option
+\IM{-serial} \c{-serial} command-line option
 \IM{-cleanup} \c{-cleanup} command-line option
 \IM{-load} \c{-load} command-line option
 \IM{-v} \c{-v} command-line option
@@ -228,6 +229,7 @@ saved sessions from
 \IM{-2} \c{-2} command-line option
 \IM{-i} \c{-i} command-line option
 \IM{-pgpfp} \c{-pgpfp} command-line option
+\IM{-sercfg} \c{-sercfg} command-line option
 
 \IM{removing registry entries} removing registry entries
 \IM{removing registry entries} registry entries, removing

doc/man-pl.but

@@ -52,6 +52,10 @@ to aid in verifying new files released by the PuTTY team.
 
 \dd Force raw mode.
 
+\dt \cw{-serial}
+
+\dd Force serial mode.
+
 \dt \cw{-P} \e{port}
 
 \dd Connect to port \e{port}.
@@ -145,6 +149,29 @@ tunnel all their connections. Only works in SSH.
 
 \dd Don't start a remote command or shell at all (SSH-2 only).
 
+\dt \cw{\-sercfg} \e{configuration-string}
+
+\dd Specify the configuration parameters for the serial port, in
+\cw{-serial} mode. \e{configuration-string} should be a
+comma-separated list of configuration parameters as follows:
+
+\lcont{
+
+\b Any single digit from 5 to 9 sets the number of data bits.
+
+\b \cq{1}, \cq{1.5} or \cq{2} sets the number of stop bits.
+
+\b Any other numeric string is interpreted as a baud rate.
+
+\b A single lower-case letter specifies the parity: \cq{n} for none,
+\cq{o} for odd, \cq{e} for even, \cq{m} for mark and \cq{s} for space.
+
+\b A single upper-case letter specifies the flow control: \cq{N} for
+none, \cq{X} for XON/XOFF, \cq{R} for RTS/CTS and \cq{D} for
+DSR/DTR.
+
+}
+
 \S{plink-manpage-more-information} MORE INFORMATION
 
 For more information on plink, it's probably best to go and look at

doc/man-putt.but

@@ -160,7 +160,7 @@ in verifying new files released by the PuTTY team.
 straight from the command line without having to go through the
 configuration box first.
 
-\dt \cw{\-ssh}, \cw{\-telnet}, \cw{\-rlogin}, \cw{\-raw}
+\dt \cw{\-ssh}, \cw{\-telnet}, \cw{\-rlogin}, \cw{\-raw}, \cw{\-serial}
 
 \dd Select the protocol \cw{putty} will use to make the connection.
 
@@ -223,6 +223,29 @@ pseudo-terminal at the server end.
 keys, this key file must be in PuTTY's format, not OpenSSH's or
 anyone else's.
 
+\dt \cw{\-sercfg} \e{configuration-string}
+
+\dd Specify the configuration parameters for the serial port, in
+\cw{-serial} mode. \e{configuration-string} should be a
+comma-separated list of configuration parameters as follows:
+
+\lcont{
+
+\b Any single digit from 5 to 9 sets the number of data bits.
+
+\b \cq{1}, \cq{1.5} or \cq{2} sets the number of stop bits.
+
+\b Any other numeric string is interpreted as a baud rate.
+
+\b A single lower-case letter specifies the parity: \cq{n} for none,
+\cq{o} for odd, \cq{e} for even, \cq{m} for mark and \cq{s} for space.
+
+\b A single upper-case letter specifies the flow control: \cq{N} for
+none, \cq{X} for XON/XOFF, \cq{R} for RTS/CTS and \cq{D} for
+DSR/DTR.
+
+}
+
 \S{putty-manpage-saved-sessions} SAVED SESSIONS
 
 Saved sessions are stored in a \cw{.putty/sessions} subdirectory in

doc/plink.but

@@ -51,7 +51,7 @@ use Plink:
 \c   -pgpfp    print PGP key fingerprints and exit
 \c   -v        show verbose messages
 \c   -load sessname  Load settings from saved session
-\c   -ssh -telnet -rlogin -raw
+\c   -ssh -telnet -rlogin -raw -serial
 \c             force use of a particular protocol
 \c   -P port   connect to specified port
 \c   -l user   connect with specified username
@@ -78,6 +78,8 @@ use Plink:
 \c   -N        don't start a shell/command (SSH-2 only)
 \c   -nc host:port
 \c             open tunnel in place of session (SSH-2 only)
+\c   -sercfg configuration-string (e.g. 19200,8,n,1,X)
+\c             Specify the serial configuration (serial only)
 
 Once this works, you are ready to use Plink.
 

doc/using.but

@@ -550,9 +550,9 @@ window}, or a \i{Windows shortcut}).
 
 \S{using-cmdline-session} Starting a session from the command line
 
-\I\c{-ssh}\I\c{-telnet}\I\c{-rlogin}\I\c{-raw}These options allow
+\I\c{-ssh}\I\c{-telnet}\I\c{-rlogin}\I\c{-raw}\I\c{-serial}These
-you to bypass the configuration window and launch straight into a
+options allow you to bypass the configuration window and launch
-session.
+straight into a session.
 
 To start a connection to a server called \c{host}:
 
@@ -569,6 +569,10 @@ URLs} in web browsers):
 
 \c putty.exe telnet://host[:port]/
 
+To start a connection to a serial port, e.g. COM1:
+
+\c putty.exe -serial com1
+
 In order to start an existing saved session called \c{sessionname},
 use the \c{-load} option (described in \k{using-cmdline-load}).
 
@@ -618,7 +622,7 @@ must be the very first thing on the command line. This form of the
 option is deprecated.)
 
 \S2{using-cmdline-protocol} Selecting a protocol: \c{-ssh},
-\c{-telnet}, \c{-rlogin}, \c{-raw}
+\c{-telnet}, \c{-rlogin}, \c{-raw} \c{-serial}
 
 To choose which protocol you want to connect with, you can use one
 of these options:
@@ -631,6 +635,8 @@ of these options:
 
 \b \i\c{-raw} selects the raw protocol.
 
+\b \i\c{-serial} selects a serial connection.
+
 These options are not available in the file transfer tools PSCP and
 PSFTP (which only work with the SSH protocol).
 
@@ -915,3 +921,27 @@ on this.
 This option causes the PuTTY tools not to run as normal, but instead
 to display the fingerprints of the PuTTY PGP Master Keys, in order to
 aid with \i{verifying new versions}. See \k{pgpkeys} for more information.
+
+\S2{using-cmdline-sercfg} \i\c{-sercfg}: specify serial port
+\i{configuration}
+
+This option specifies the configuration parameters for the serial
+port (baud rate, stop bits etc). Its argument is interpreted as a
+comma-separated list of configuration options, which can be as
+follows:
+
+\b Any single digit from 5 to 9 sets the number of data bits.
+
+\b \cq{1}, \cq{1.5} or \cq{2} sets the number of stop bits.
+
+\b Any other numeric string is interpreted as a baud rate.
+
+\b A single lower-case letter specifies the parity: \cq{n} for none,
+\cq{o} for odd, \cq{e} for even, \cq{m} for mark and \cq{s} for space.
+
+\b A single upper-case letter specifies the flow control: \cq{N} for
+none, \cq{X} for XON/XOFF, \cq{R} for RTS/CTS and \cq{D} for
+DSR/DTR.
+
+For example, \cq{-sercfg 19200,8,n,1,N} denotes a baud rate of
+19200, 8 data bits, no parity, 1 stop bit and no flow control.

unix/uxplink.c

@@ -565,6 +565,8 @@ static void usage(void)
     printf("  -N        don't start a shell/command (SSH-2 only)\n");
     printf("  -nc host:port\n");
     printf("            open tunnel in place of session (SSH-2 only)\n");
+    printf("  -sercfg configuration-string (e.g. 19200,8,n,1,X)\n");
+    printf("            Specify the serial configuration (serial only)\n");
     exit(1);
 }
 

windows/winplink.c

@@ -193,6 +193,8 @@ static void usage(void)
     printf("  -N        don't start a shell/command (SSH-2 only)\n");
     printf("  -nc host:port\n");
     printf("            open tunnel in place of session (SSH-2 only)\n");
+    printf("  -sercfg configuration-string (e.g. 19200,8,n,1,X)\n");
+    printf("            Specify the serial configuration (serial only)\n");
     exit(1);
 }