ncurses 5.8 - patch 20110307
[ncurses.git] / ncurses / trace / lib_tracebits.c
index a92e00a8624e4341e752616d12777f01aed3a24f..d19d0e420acce2675896cbdf70f31783bdb52b9f 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ * Copyright (c) 1998-2008,2011 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
 /****************************************************************************
  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ *     and: Thomas E. Dickey                        1996-on                 *
  ****************************************************************************/
 
 #include <curses.priv.h>
-#include <term.h>      /* cur_term */
 
-MODULE_ID("$Id: lib_tracebits.c,v 1.3 1999/08/21 21:43:48 tom Exp $")
+MODULE_ID("$Id: lib_tracebits.c,v 1.19 2011/01/09 00:23:03 tom Exp $")
 
-#if defined(SVR4_TERMIO) && !defined(_POSIX_SOURCE)
+#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
 #define _POSIX_SOURCE
 #endif
 
 #if HAVE_SYS_TERMIO_H
-#include <sys/termio.h>        /* needed for ISC */
+#include <sys/termio.h>                /* needed for ISC */
 #endif
 
 #ifdef __EMX__
 #include <io.h>
-#include <fcntl.h>
 #endif
 
 /* may be undefined if we're using termio.h */
 #ifndef TOSTOP
 #define TOSTOP 0
 #endif
+
 #ifndef IEXTEN
 #define IEXTEN 0
 #endif
 
+#ifndef ONLCR
+#define ONLCR 0
+#endif
+
+#ifndef OCRNL
+#define OCRNL 0
+#endif
+
+#ifndef ONOCR
+#define ONOCR 0
+#endif
+
+#ifndef ONLRET
+#define ONLRET 0
+#endif
+
 #ifdef TRACE
 
-typedef struct {unsigned int val; const char *name;} BITNAMES;
+typedef struct {
+    unsigned int val;
+    const char *name;
+} BITNAMES;
 
-static void lookup_bits(char *buf, const BITNAMES *table, const char *label, unsigned int val)
+static void
+lookup_bits(char *buf, const BITNAMES * table, const char *label, unsigned int val)
 {
-       const BITNAMES *sp;
-
-       (void) strcat(buf, label);
-       (void) strcat(buf, ": {");
-       for (sp = table; sp->name; sp++)
-               if (sp->val != 0
-               && (val & sp->val) == sp->val)
-               {
-                       (void) strcat(buf, sp->name);
-                       (void) strcat(buf, ", ");
-               }
-       if (buf[strlen(buf) - 2] == ',')
-               buf[strlen(buf) - 2] = '\0';
-       (void) strcat(buf,"} ");
+    const BITNAMES *sp;
+
+    (void) strcat(buf, label);
+    (void) strcat(buf, ": {");
+    for (sp = table; sp->name; sp++)
+       if (sp->val != 0
+           && (val & sp->val) == sp->val) {
+           (void) strcat(buf, sp->name);
+           (void) strcat(buf, ", ");
+       }
+    if (buf[strlen(buf) - 2] == ',')
+       buf[strlen(buf) - 2] = '\0';
+    (void) strcat(buf, "} ");
 }
 
-char *_nc_tracebits(void)
+NCURSES_EXPORT(char *)
+_nc_trace_ttymode(TTY * tty)
 /* describe the state of the terminal control bits exactly */
 {
-char   *buf;
-static const   BITNAMES
+    char *buf;
 
 #ifdef TERMIOS
-iflags[] =
+    static const BITNAMES iflags[] =
     {
-       {BRKINT,        "BRKINT"},
-       {IGNBRK,        "IGNBRK"},
-       {IGNPAR,        "IGNPAR"},
-       {PARMRK,        "PARMRK"},
-       {INPCK,         "INPCK"},
-       {ISTRIP,        "ISTRIP"},
-       {INLCR,         "INLCR"},
-       {IGNCR,         "IGNC"},
-       {ICRNL,         "ICRNL"},
-       {IXON,          "IXON"},
-       {IXOFF,         "IXOFF"},
-       {0,             NULL}
+       {BRKINT, "BRKINT"},
+       {IGNBRK, "IGNBRK"},
+       {IGNPAR, "IGNPAR"},
+       {PARMRK, "PARMRK"},
+       {INPCK, "INPCK"},
+       {ISTRIP, "ISTRIP"},
+       {INLCR, "INLCR"},
+       {IGNCR, "IGNC"},
+       {ICRNL, "ICRNL"},
+       {IXON, "IXON"},
+       {IXOFF, "IXOFF"},
+       {0, NULL}
 #define ALLIN  (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF)
-    },
-oflags[] =
+    }, oflags[] =
     {
-       {OPOST,         "OPOST"},
-       {0,             NULL}
-#define ALLOUT (OPOST)
-    },
-cflags[] =
+       {OPOST, "OPOST"},
+       {OFLAGS_TABS, "XTABS"},
+       {ONLCR, "ONLCR"},
+       {OCRNL, "OCRNL"},
+       {ONOCR, "ONOCR"},
+       {ONLRET, "ONLRET"},
+       {0, NULL}
+#define ALLOUT (OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET)
+    }, cflags[] =
     {
-       {CLOCAL,        "CLOCAL"},
-       {CREAD,         "CREAD"},
-       {CSTOPB,        "CSTOPB"},
+       {CLOCAL, "CLOCAL"},
+       {CREAD, "CREAD"},
+       {CSTOPB, "CSTOPB"},
 #if !defined(CS5) || !defined(CS8)
-       {CSIZE,         "CSIZE"},
+       {CSIZE, "CSIZE"},
 #endif
-       {HUPCL,         "HUPCL"},
-       {PARENB,        "PARENB"},
-       {PARODD|PARENB, "PARODD"},      /* concession to readability */
-       {0,             NULL}
+       {HUPCL, "HUPCL"},
+       {PARENB, "PARENB"},
+       {PARODD | PARENB, "PARODD"},    /* concession to readability */
+       {0, NULL}
 #define ALLCTRL        (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD)
-    },
-lflags[] =
+    }, lflags[] =
     {
-       {ECHO,          "ECHO"},
-       {ECHOE|ECHO,    "ECHOE"},       /* concession to readability */
-       {ECHOK|ECHO,    "ECHOK"},       /* concession to readability */
-       {ECHONL,        "ECHONL"},
-       {ICANON,        "ICANON"},
-       {ISIG,          "ISIG"},
-       {NOFLSH,        "NOFLSH"},
-       {TOSTOP,        "TOSTOP"},
-       {IEXTEN,        "IEXTEN"},
-       {0,             NULL}
+       {ECHO, "ECHO"},
+       {ECHOE | ECHO, "ECHOE"},        /* concession to readability */
+       {ECHOK | ECHO, "ECHOK"},        /* concession to readability */
+       {ECHONL, "ECHONL"},
+       {ICANON, "ICANON"},
+       {ISIG, "ISIG"},
+       {NOFLSH, "NOFLSH"},
+       {TOSTOP, "TOSTOP"},
+       {IEXTEN, "IEXTEN"},
+       {0, NULL}
 #define ALLLOCAL       (ECHO|ECHONL|ICANON|ISIG|NOFLSH|TOSTOP|IEXTEN)
     };
 
-
     buf = _nc_trace_buf(0,
-       8 + sizeof(iflags) +
-       8 + sizeof(oflags) +
-       8 + sizeof(cflags) +
-       8 + sizeof(lflags) +
-       8);
+                       8 + sizeof(iflags) +
+                       8 + sizeof(oflags) +
+                       8 + sizeof(cflags) +
+                       8 + sizeof(lflags) +
+                       8);
+    if (buf != 0) {
 
-    if (cur_term->Nttyb.c_iflag & ALLIN)
-       lookup_bits(buf, iflags, "iflags", cur_term->Nttyb.c_iflag);
+       if (tty->c_iflag & ALLIN)
+           lookup_bits(buf, iflags, "iflags", tty->c_iflag);
 
-    if (cur_term->Nttyb.c_oflag & ALLOUT)
-       lookup_bits(buf, oflags, "oflags", cur_term->Nttyb.c_oflag);
+       if (tty->c_oflag & ALLOUT)
+           lookup_bits(buf, oflags, "oflags", tty->c_oflag);
 
-    if (cur_term->Nttyb.c_cflag & ALLCTRL)
-       lookup_bits(buf, cflags, "cflags", cur_term->Nttyb.c_cflag);
+       if (tty->c_cflag & ALLCTRL)
+           lookup_bits(buf, cflags, "cflags", tty->c_cflag);
 
 #if defined(CS5) && defined(CS8)
-    switch (cur_term->Nttyb.c_cflag & CSIZE) {
-#if defined(CS5) && (CS5 != 0)
-    case CS5:  strcat(buf, "CS5 ");    break;
-#endif
-#if defined(CS6) && (CS6 != 0)
-    case CS6:  strcat(buf, "CS6 ");    break;
+       {
+           static struct {
+               int value;
+               const char *name;
+           } csizes[] = {
+#define CS_DATA(name) { name, #name " " }
+               CS_DATA(CS5),
+#ifdef CS6
+                   CS_DATA(CS6),
 #endif
-#if defined(CS7) && (CS7 != 0)
-    case CS7:  strcat(buf, "CS7 ");    break;
-#endif
-#if defined(CS8) && (CS8 != 0)
-    case CS8:  strcat(buf, "CS8 ");    break;
-#endif
-    default:   strcat(buf, "CSIZE? "); break;
-    }
+#ifdef CS7
+                   CS_DATA(CS7),
 #endif
+                   CS_DATA(CS8),
+           };
+           const char *result = "CSIZE? ";
+           int value = (tty->c_cflag & CSIZE);
+           unsigned n;
 
-    if (cur_term->Nttyb.c_lflag & ALLLOCAL)
-       lookup_bits(buf, lflags, "lflags", cur_term->Nttyb.c_lflag);
+           if (value != 0) {
+               for (n = 0; n < SIZEOF(csizes); n++) {
+                   if (csizes[n].value == value) {
+                       result = csizes[n].name;
+                       break;
+                   }
+               }
+           }
+           strcat(buf, result);
+       }
+#endif
 
+       if (tty->c_lflag & ALLLOCAL)
+           lookup_bits(buf, lflags, "lflags", tty->c_lflag);
+    }
 #else
     /* reference: ttcompat(4M) on SunOS 4.1 */
 #ifndef EVENP
@@ -193,33 +228,38 @@ lflags[] =
 #define TANDEM 0
 #endif
 
-cflags[] =
+    static const BITNAMES cflags[] =
     {
-       {CBREAK,        "CBREAK"},
-       {CRMOD,         "CRMOD"},
-       {ECHO,          "ECHO"},
-       {EVENP,         "EVENP"},
-       {LCASE,         "LCASE"},
-       {LLITOUT,       "LLITOUT"},
-       {ODDP,          "ODDP"},
-       {RAW,           "RAW"},
-       {TANDEM,        "TANDEM"},
-       {XTABS,         "XTABS"},
-       {0,             NULL}
+       {CBREAK, "CBREAK"},
+       {CRMOD, "CRMOD"},
+       {ECHO, "ECHO"},
+       {EVENP, "EVENP"},
+       {LCASE, "LCASE"},
+       {LLITOUT, "LLITOUT"},
+       {ODDP, "ODDP"},
+       {RAW, "RAW"},
+       {TANDEM, "TANDEM"},
+       {XTABS, "XTABS"},
+       {0, NULL}
 #define ALLCTRL        (CBREAK|CRMOD|ECHO|EVENP|LCASE|LLITOUT|ODDP|RAW|TANDEM|XTABS)
     };
 
     buf = _nc_trace_buf(0,
-       8 + sizeof(cflags));
-
-    if (cur_term->Nttyb.sg_flags & ALLCTRL)
-    {
-       lookup_bits(buf, cflags, "cflags", cur_term->Nttyb.sg_flags);
+                       8 + sizeof(cflags));
+    if (buf != 0) {
+       if (tty->sg_flags & ALLCTRL) {
+           lookup_bits(buf, cflags, "cflags", tty->sg_flags);
+       }
     }
-
 #endif
-    return(buf);
+    return (buf);
+}
+
+NCURSES_EXPORT(char *)
+_nc_tracebits(void)
+{
+    return _nc_trace_ttymode(&(cur_term->Nttyb));
 }
 #else
-char *_nc_tracebits(void) { static char tmp[] = ""; return tmp; }
+EMPTY_MODULE(_nc_empty_lib_tracebits)
 #endif /* TRACE */