Adding upstream version 5.2.37.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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1435 changed files with 757174 additions and 0 deletions
320
lib/readline/colors.c
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320
lib/readline/colors.c
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/* `dir', `vdir' and `ls' directory listing programs for GNU.
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Modified by Chet Ramey for Readline.
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Copyright (C) 1985, 1988, 1990-1991, 1995-2021
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Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Richard Stallman and David MacKenzie. */
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/* Color support by Peter Anvin <Peter.Anvin@linux.org> and Dennis
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Flaherty <dennisf@denix.elk.miles.com> based on original patches by
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Greg Lee <lee@uhunix.uhcc.hawaii.edu>. */
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#define READLINE_LIBRARY
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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#endif
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#include "rlconf.h"
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#if defined __TANDEM
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# define _XOPEN_SOURCE_EXTENDED 1
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# define _TANDEM_SOURCE 1
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# include <sys/types.h>
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# include <sys/stat.h>
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#endif
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#include <stdio.h>
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#include "posixstat.h" // stat related macros (S_ISREG, ...)
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#include <fcntl.h> // S_ISUID
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#ifndef S_ISDIR
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# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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// strlen()
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#if defined (HAVE_STRING_H)
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# include <string.h>
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#else /* !HAVE_STRING_H */
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# include <strings.h>
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#endif /* !HAVE_STRING_H */
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// abort()
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#if defined (HAVE_STDLIB_H)
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# include <stdlib.h>
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#else
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# include "ansi_stdlib.h"
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#endif /* HAVE_STDLIB_H */
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#include "readline.h"
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#include "rldefs.h"
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#ifdef COLOR_SUPPORT
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#include "xmalloc.h"
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#include "colors.h"
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static bool is_colored (enum indicator_no type);
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static void restore_default_color (void);
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#define RL_COLOR_PREFIX_EXTENSION ".readline-colored-completion-prefix"
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COLOR_EXT_TYPE *_rl_color_ext_list = 0;
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/* Output a color indicator (which may contain nulls). */
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void
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_rl_put_indicator (const struct bin_str *ind)
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{
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fwrite (ind->string, ind->len, 1, rl_outstream);
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}
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static bool
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is_colored (enum indicator_no colored_filetype)
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{
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size_t len = _rl_color_indicator[colored_filetype].len;
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char const *s = _rl_color_indicator[colored_filetype].string;
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return ! (len == 0
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|| (len == 1 && strncmp (s, "0", 1) == 0)
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|| (len == 2 && strncmp (s, "00", 2) == 0));
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}
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static void
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restore_default_color (void)
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{
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_rl_put_indicator (&_rl_color_indicator[C_LEFT]);
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_rl_put_indicator (&_rl_color_indicator[C_RIGHT]);
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}
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void
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_rl_set_normal_color (void)
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{
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if (is_colored (C_NORM))
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{
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_rl_put_indicator (&_rl_color_indicator[C_LEFT]);
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_rl_put_indicator (&_rl_color_indicator[C_NORM]);
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_rl_put_indicator (&_rl_color_indicator[C_RIGHT]);
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}
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}
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static struct bin_str *
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_rl_custom_readline_prefix (void)
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{
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size_t len;
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COLOR_EXT_TYPE *ext;
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len = strlen (RL_COLOR_PREFIX_EXTENSION);
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for (ext = _rl_color_ext_list; ext; ext = ext->next)
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if (ext->ext.len == len && STREQN (ext->ext.string, RL_COLOR_PREFIX_EXTENSION, len))
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return (&ext->seq);
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return (NULL);
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}
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bool
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_rl_print_prefix_color (void)
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{
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struct bin_str *s;
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/* What do we want to use for the prefix? Let's try cyan first, see colors.h */
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s = _rl_custom_readline_prefix ();
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if (s == 0)
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s = &_rl_color_indicator[C_PREFIX];
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if (s->string != NULL)
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{
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if (is_colored (C_NORM))
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restore_default_color ();
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_rl_put_indicator (&_rl_color_indicator[C_LEFT]);
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_rl_put_indicator (s);
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_rl_put_indicator (&_rl_color_indicator[C_RIGHT]);
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return 0;
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}
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else
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return 1;
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}
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/* Returns whether any color sequence was printed. */
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bool
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_rl_print_color_indicator (const char *f)
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{
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enum indicator_no colored_filetype;
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COLOR_EXT_TYPE *ext; /* Color extension */
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size_t len; /* Length of name */
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const char* name;
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char *filename;
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struct stat astat, linkstat;
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mode_t mode;
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int linkok; /* 1 == ok, 0 == dangling symlink, -1 == missing */
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int stat_ok;
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name = f;
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/* This should already have undergone tilde expansion */
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filename = 0;
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if (rl_filename_stat_hook)
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{
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filename = savestring (f);
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(*rl_filename_stat_hook) (&filename);
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name = filename;
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}
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#if defined (HAVE_LSTAT)
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stat_ok = lstat(name, &astat);
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#else
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stat_ok = stat(name, &astat);
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#endif
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if (stat_ok == 0)
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{
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mode = astat.st_mode;
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#if defined (HAVE_LSTAT)
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if (S_ISLNK (mode))
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{
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linkok = stat (name, &linkstat) == 0;
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if (linkok && strncmp (_rl_color_indicator[C_LINK].string, "target", 6) == 0)
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mode = linkstat.st_mode;
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}
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else
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#endif
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linkok = 1;
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}
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else
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linkok = -1;
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/* Is this a nonexistent file? If so, linkok == -1. */
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if (linkok == -1 && _rl_color_indicator[C_MISSING].string != NULL)
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colored_filetype = C_MISSING;
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else if (linkok == 0 && _rl_color_indicator[C_ORPHAN].string != NULL)
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colored_filetype = C_ORPHAN; /* dangling symlink */
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else if(stat_ok != 0)
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{
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static enum indicator_no filetype_indicator[] = FILETYPE_INDICATORS;
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colored_filetype = filetype_indicator[normal]; //f->filetype];
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}
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else
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{
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if (S_ISREG (mode))
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{
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colored_filetype = C_FILE;
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#if defined (S_ISUID)
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if ((mode & S_ISUID) != 0 && is_colored (C_SETUID))
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colored_filetype = C_SETUID;
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else
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#endif
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#if defined (S_ISGID)
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if ((mode & S_ISGID) != 0 && is_colored (C_SETGID))
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colored_filetype = C_SETGID;
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else
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#endif
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if (is_colored (C_CAP) && 0) //f->has_capability)
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colored_filetype = C_CAP;
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else if ((mode & S_IXUGO) != 0 && is_colored (C_EXEC))
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colored_filetype = C_EXEC;
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else if ((1 < astat.st_nlink) && is_colored (C_MULTIHARDLINK))
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colored_filetype = C_MULTIHARDLINK;
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}
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else if (S_ISDIR (mode))
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{
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colored_filetype = C_DIR;
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#if defined (S_ISVTX)
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if ((mode & S_ISVTX) && (mode & S_IWOTH)
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&& is_colored (C_STICKY_OTHER_WRITABLE))
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colored_filetype = C_STICKY_OTHER_WRITABLE;
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else
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#endif
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if ((mode & S_IWOTH) != 0 && is_colored (C_OTHER_WRITABLE))
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colored_filetype = C_OTHER_WRITABLE;
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#if defined (S_ISVTX)
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else if ((mode & S_ISVTX) != 0 && is_colored (C_STICKY))
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colored_filetype = C_STICKY;
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#endif
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}
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#if defined (S_ISLNK)
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else if (S_ISLNK (mode))
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colored_filetype = C_LINK;
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#endif
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else if (S_ISFIFO (mode))
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colored_filetype = C_FIFO;
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#if defined (S_ISSOCK)
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else if (S_ISSOCK (mode))
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colored_filetype = C_SOCK;
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#endif
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#if defined (S_ISBLK)
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else if (S_ISBLK (mode))
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colored_filetype = C_BLK;
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#endif
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else if (S_ISCHR (mode))
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colored_filetype = C_CHR;
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else
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{
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/* Classify a file of some other type as C_ORPHAN. */
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colored_filetype = C_ORPHAN;
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}
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}
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/* Check the file's suffix only if still classified as C_FILE. */
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ext = NULL;
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if (colored_filetype == C_FILE)
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{
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/* Test if NAME has a recognized suffix. */
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len = strlen (name);
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name += len; /* Pointer to final \0. */
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for (ext = _rl_color_ext_list; ext != NULL; ext = ext->next)
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{
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if (ext->ext.len <= len
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&& strncmp (name - ext->ext.len, ext->ext.string,
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ext->ext.len) == 0)
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break;
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}
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}
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free (filename); /* NULL or savestring return value */
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{
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const struct bin_str *const s
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= ext ? &(ext->seq) : &_rl_color_indicator[colored_filetype];
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if (s->string != NULL)
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{
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/* Need to reset so not dealing with attribute combinations */
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if (is_colored (C_NORM))
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restore_default_color ();
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_rl_put_indicator (&_rl_color_indicator[C_LEFT]);
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_rl_put_indicator (s);
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_rl_put_indicator (&_rl_color_indicator[C_RIGHT]);
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return 0;
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}
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else
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return 1;
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}
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}
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void
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_rl_prep_non_filename_text (void)
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{
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if (_rl_color_indicator[C_END].string != NULL)
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_rl_put_indicator (&_rl_color_indicator[C_END]);
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else
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{
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_rl_put_indicator (&_rl_color_indicator[C_LEFT]);
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_rl_put_indicator (&_rl_color_indicator[C_RESET]);
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_rl_put_indicator (&_rl_color_indicator[C_RIGHT]);
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}
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}
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#endif /* COLOR_SUPPORT */
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