/* Work-alike for termcap, plus extra features.
Copyright (C) 1985, 1986, 1993, 1994, 1995, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007, 2008, 2011 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Boston, MA 02110-1301, USA. */
/* Emacs config.h may rename various library functions such as malloc. */
-#ifdef HAVE_CONFIG_H
#include <config.h>
-#endif
-
-#ifdef emacs
-
-#include <lisp.h> /* xmalloc is here */
-/* Get the O_* definitions for open et al. */
+#include <setjmp.h>
#include <sys/file.h>
-#ifdef HAVE_FCNTL_H
#include <fcntl.h>
-#endif
-#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#endif
-
-#else /* not emacs */
-
-#ifdef STDC_HEADERS
-#include <stdlib.h>
-#include <string.h>
-#else
-char *getenv ();
-char *malloc ();
-char *realloc ();
-#endif
-
-/* Do this after the include, in case string.h prototypes bcopy. */
-#if (defined(HAVE_STRING_H) || defined(STDC_HEADERS)) && !defined(bcopy)
-#define bcopy(s, d, n) memcpy ((d), (s), (n))
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
+#include "lisp.h"
+#include "tparam.h"
+#ifdef MSDOS
+#include "msdos.h"
#endif
-#endif /* not emacs */
-
#ifndef NULL
#define NULL (char *) 0
#endif
-#ifndef O_RDONLY
-#define O_RDONLY 0
-#endif
-
/* BUFSIZE is the initial size allocated for the buffer
for reading the termcap file.
It is not a limit.
#define TERMCAP_FILE "/etc/termcap"
#endif
-#ifndef emacs
-static void
-memory_out ()
-{
- write (2, "virtual memory exhausted\n", 25);
- exit (1);
-}
-
-static char *
-xmalloc (size)
- unsigned size;
-{
- register char *tem = malloc (size);
-
- if (!tem)
- memory_out ();
- return tem;
-}
-
-static char *
-xrealloc (ptr, size)
- char *ptr;
- unsigned size;
-{
- register char *tem = realloc (ptr, size);
-
- if (!tem)
- memory_out ();
- return tem;
-}
-#endif /* not emacs */
\f
/* Looking up capabilities in the entry already found. */
for tgetnum, tgetflag and tgetstr to find. */
static char *term_entry;
-static char *tgetst1 ();
+static char *tgetst1 (char *ptr, char **area);
/* Search entry BP for capability CAP.
Return a pointer to the capability (in BP) if found,
0 if not found. */
static char *
-find_capability (bp, cap)
- register char *bp, *cap;
+find_capability (register char *bp, register const char *cap)
{
for (; *bp; bp++)
if (bp[0] == ':'
}
int
-tgetnum (cap)
- char *cap;
+tgetnum (const char *cap)
{
register char *ptr = find_capability (term_entry, cap);
if (!ptr || ptr[-1] != '#')
}
int
-tgetflag (cap)
- char *cap;
+tgetflag (const char *cap)
{
register char *ptr = find_capability (term_entry, cap);
return ptr && ptr[-1] == ':';
If AREA is null, space is allocated with `malloc'. */
char *
-tgetstr (cap, area)
- char *cap;
- char **area;
+tgetstr (const char *cap, char **area)
{
register char *ptr = find_capability (term_entry, cap);
if (!ptr || (ptr[-1] != '=' && ptr[-1] != '~'))
gives meaning of character following \, or a space if no special meaning.
Sixteen characters per line within the string. */
-static char esctab[]
+static const char esctab[]
= " \057\026 \047\014 \
\025 \015 \
\005 \013 \
gives meaning of character following \, or a space if no special meaning.
Eight characters per line within the string. */
-static char esctab[]
+static const char esctab[]
= " \007\010 \033\014 \
\012 \
\015 \011 \013 \
or NULL if PTR is NULL. */
static char *
-tgetst1 (ptr, area)
- char *ptr;
- char **area;
+tgetst1 (char *ptr, char **area)
{
register char *p, *r;
register int c;
cut[last_p_param].len = r - cut[last_p_param].beg;
for (i = 0, wp = ret; i <= last_p_param; wp += cut[i++].len)
- bcopy (cut[i].beg, wp, cut[i].len);
+ memcpy (wp, cut[i].beg, cut[i].len);
r = wp;
}
}
\f
/* Outputting a string with padding. */
-#ifndef emacs
-short ospeed;
-/* If OSPEED is 0, we use this as the actual baud rate. */
-int tputs_baud_rate;
-#endif
-
char PC;
-#ifndef emacs
-/* Actual baud rate if positive;
- - baud rate / 100 if negative. */
-
-static int speeds[] =
- {
- 0, 50, 75, 110, 135, 150, -2, -3, -6, -12,
- -18, -24, -48, -96, -192, -288, -384, -576, -1152
- };
-
-#endif /* not emacs */
-
void
-tputs (str, nlines, outfun)
- register char *str;
- int nlines;
- register int (*outfun) ();
+tputs (register const char *str, int nlines, int (*outfun) (int))
{
register int padcount = 0;
register int speed;
-#ifdef emacs
- extern EMACS_INT baud_rate;
speed = baud_rate;
/* For quite high speeds, convert to the smaller
units to avoid overflow. */
if (speed > 10000)
speed = - speed / 100;
-#else
- if (ospeed == 0)
- speed = tputs_baud_rate;
- else
- speed = speeds[ospeed];
-#endif
if (!str)
return;
struct termcap_buffer
{
char *beg;
- int size;
+ ptrdiff_t size;
char *ptr;
int ateof;
- int full;
+ ptrdiff_t full;
};
/* Forward declarations of static functions. */
-static int scan_file ();
-static char *gobble_line ();
-static int compare_contin ();
-static int name_match ();
+static int scan_file (char *str, int fd, register struct termcap_buffer *bufp);
+static char *gobble_line (int fd, register struct termcap_buffer *bufp, char *append_end);
+static int compare_contin (register char *str1, register char *str2);
+static int name_match (char *line, char *name);
#ifdef MSDOS /* MW, May 1993 */
static int
-valid_filename_p (fn)
- char *fn;
+valid_filename_p (char *fn)
{
return *fn == '/' || fn[1] == ':';
}
in it, and some other value otherwise. */
int
-tgetent (bp, name)
- char *bp, *name;
+tgetent (char *bp, const char *name)
{
register char *termcap_name;
register int fd;
register char *bp1;
char *tc_search_point;
char *term;
- int malloc_size = 0;
+ ptrdiff_t malloc_size = 0;
register int c;
char *tcenv = NULL; /* TERMCAP value, if it contains :tc=. */
char *indirect = NULL; /* Terminal type in :tc= in TERMCAP value. */
buf.size = BUFSIZE;
/* Add 1 to size to ensure room for terminating null. */
buf.beg = (char *) xmalloc (buf.size + 1);
- term = indirect ? indirect : name;
+ term = indirect ? indirect : (char *)name;
if (!bp)
{
if (scan_file (term, fd, &buf) == 0)
{
close (fd);
- free (buf.beg);
+ xfree (buf.beg);
if (malloc_size)
- free (bp);
+ xfree (bp);
return 0;
}
/* Free old `term' if appropriate. */
if (term != name)
- free (term);
+ xfree (term);
/* If BP is malloc'd by us, make sure it is big enough. */
if (malloc_size)
{
- int offset1 = bp1 - bp, offset2 = tc_search_point - bp;
+ ptrdiff_t offset1 = bp1 - bp, offset2 = tc_search_point - bp;
malloc_size = offset1 + buf.size;
bp = termcap_name = (char *) xrealloc (bp, malloc_size);
bp1 = termcap_name + offset1;
}
close (fd);
- free (buf.beg);
+ xfree (buf.beg);
if (malloc_size)
bp = (char *) xrealloc (bp, bp1 - bp + 1);
or 0 if no entry is found in the file. */
static int
-scan_file (str, fd, bufp)
- char *str;
- int fd;
- register struct termcap_buffer *bufp;
+scan_file (char *str, int fd, register struct termcap_buffer *bufp)
{
register char *end;
by termcap entry LINE. */
static int
-name_match (line, name)
- char *line, *name;
+name_match (char *line, char *name)
{
register char *tem;
}
static int
-compare_contin (str1, str2)
- register char *str1, *str2;
+compare_contin (register char *str1, register char *str2)
{
register int c1, c2;
while (1)
thing as one line. The caller decides when a line is continued. */
static char *
-gobble_line (fd, bufp, append_end)
- int fd;
- register struct termcap_buffer *bufp;
- char *append_end;
+gobble_line (int fd, register struct termcap_buffer *bufp, char *append_end)
{
register char *end;
register int nread;
register char *buf = bufp->beg;
- register char *tem;
if (!append_end)
append_end = bufp->ptr;
{
if (bufp->full == bufp->size)
{
- bufp->size *= 2;
+ ptrdiff_t ptr_offset = bufp->ptr - buf;
+ ptrdiff_t append_end_offset = append_end - buf;
+ ptrdiff_t size;
+ if ((min (PTRDIFF_MAX, SIZE_MAX) - 1) / 2 < bufp->size)
+ memory_full (SIZE_MAX);
+ size = 2 * bufp->size;
/* Add 1 to size to ensure room for terminating null. */
- tem = (char *) xrealloc (buf, bufp->size + 1);
- bufp->ptr = (bufp->ptr - buf) + tem;
- append_end = (append_end - buf) + tem;
- bufp->beg = buf = tem;
+ bufp->beg = buf = (char *) xrealloc (buf, size + 1);
+ bufp->size = size;
+ bufp->ptr = buf + ptr_offset;
+ append_end = buf + append_end_offset;
}
}
else
{
append_end -= bufp->ptr - buf;
- bcopy (bufp->ptr, buf, bufp->full -= bufp->ptr - buf);
+ memcpy (buf, bufp->ptr, bufp->full -= bufp->ptr - buf);
bufp->ptr = buf;
}
if (!(nread = read (fd, buf + bufp->full, bufp->size - bufp->full)))
#include <stdio.h>
-main (argc, argv)
- int argc;
- char **argv;
+static void
+tprint (char *cap)
+{
+ char *x = tgetstr (cap, 0);
+ register char *y;
+
+ printf ("%s: ", cap);
+ if (x)
+ {
+ for (y = x; *y; y++)
+ if (*y <= ' ' || *y == 0177)
+ printf ("\\%0o", *y);
+ else
+ putchar (*y);
+ free (x);
+ }
+ else
+ printf ("none");
+ putchar ('\n');
+}
+
+int
+main (int argc, char **argv)
{
char *term;
char *buf;
printf ("co: %d\n", tgetnum ("co"));
printf ("am: %d\n", tgetflag ("am"));
-}
-
-tprint (cap)
- char *cap;
-{
- char *x = tgetstr (cap, 0);
- register char *y;
- printf ("%s: ", cap);
- if (x)
- {
- for (y = x; *y; y++)
- if (*y <= ' ' || *y == 0177)
- printf ("\\%0o", *y);
- else
- putchar (*y);
- free (x);
- }
- else
- printf ("none");
- putchar ('\n');
+ return 0;
}
#endif /* TEST */
-
-/* arch-tag: c2e8d427-2271-4fac-95fe-411857238b80
- (do not change this comment) */