/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo). */
-/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
+/* Copyright (C) 1988-2017 Free Software Foundation, Inc.
- This file is part of GNU Readline, a library for reading lines
- of text with interactive input and history editing.
+ This file is part of the GNU Readline Library (Readline), a library
+ for reading lines of text with interactive input and history editing.
- Readline is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+ Readline is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Readline is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Readline is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Readline; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif /* HAVE_STDLIB_H */
#include <sys/types.h>
-#ifdef HAVE_PWD_H
+#if defined (HAVE_PWD_H)
#include <pwd.h>
-#endif /* HAVE_PWD_H */
+#endif
#include "tilde.h"
# include "xmalloc.h"
#endif /* TEST || STATIC_MALLOC */
-#if defined (HAVE_GETPWNAM) && !defined (HAVE_GETPW_DECLS)
+#if !defined (HAVE_GETPW_DECLS)
+# if defined (HAVE_GETPWUID)
extern struct passwd *getpwuid PARAMS((uid_t));
+# endif
+# if defined (HAVE_GETPWNAM)
extern struct passwd *getpwnam PARAMS((const char *));
-#endif /* defined (HAVE_GETPWNAM) && !HAVE_GETPW_DECLS */
+# endif
+#endif /* !HAVE_GETPW_DECLS */
#if !defined (savestring)
#define savestring(x) strcpy ((char *)xmalloc (1 + strlen (x)), (x))
the tilde which starts the expansion. Place the length of the text
which identified this tilde starter in LEN, excluding the tilde itself. */
static int
-tilde_find_prefix (string, len)
- const char *string;
- int *len;
+tilde_find_prefix (const char *string, int *len)
{
register int i, j, string_len;
register char **prefixes;
/* Find the end of a tilde expansion in STRING, and return the index of
the character which ends the tilde definition. */
static int
-tilde_find_suffix (string)
- const char *string;
+tilde_find_suffix (const char *string)
{
register int i, j, string_len;
register char **suffixes;
/* Return a new string which is the result of tilde expanding STRING. */
char *
-tilde_expand (string)
- const char *string;
+tilde_expand (const char *string)
{
char *result;
int result_size, result_index;
string += end;
expansion = tilde_expand_word (tilde_word);
- free (tilde_word);
+
+ if (expansion == 0)
+ expansion = tilde_word;
+ else
+ xfree (tilde_word);
len = strlen (expansion);
#ifdef __CYGWIN__
strcpy (result + result_index, expansion);
result_index += len;
}
- free (expansion);
+ xfree (expansion);
}
result[result_index] = '\0';
non-null, the index of the end of the prefix into FNAME is returned in
the location it points to. */
static char *
-isolate_tilde_prefix (fname, lenp)
- const char *fname;
- int *lenp;
+isolate_tilde_prefix (const char *fname, int *lenp)
{
char *ret;
int i;
return ret;
}
+#if 0
+/* Public function to scan a string (FNAME) beginning with a tilde and find
+ the portion of the string that should be passed to the tilde expansion
+ function. Right now, it just calls tilde_find_suffix and allocates new
+ memory, but it can be expanded to do different things later. */
+char *
+tilde_find_word (const char *fname, int flags, int *lenp)
+{
+ int x;
+ char *r;
+
+ x = tilde_find_suffix (fname);
+ if (x == 0)
+ {
+ r = savestring (fname);
+ if (lenp)
+ *lenp = 0;
+ }
+ else
+ {
+ r = (char *)xmalloc (1 + x);
+ strncpy (r, fname, x);
+ r[x] = '\0';
+ if (lenp)
+ *lenp = x;
+ }
+
+ return r;
+}
+#endif
+
/* Return a string that is PREFIX concatenated with SUFFIX starting at
SUFFIND. */
static char *
-glue_prefix_and_suffix (prefix, suffix, suffind)
- char *prefix;
- const char *suffix;
- int suffind;
+glue_prefix_and_suffix (char *prefix, const char *suffix, int suffind)
{
char *ret;
int plen, slen;
tilde. If there is no expansion, call tilde_expansion_failure_hook.
This always returns a newly-allocated string, never static storage. */
char *
-tilde_expand_word (filename)
- const char *filename;
+tilde_expand_word (const char *filename)
{
char *dirname, *expansion, *username;
int user_len;
{
/* Prefix $HOME to the rest of the string. */
expansion = sh_get_env_value ("HOME");
+#if defined (_WIN32)
+ if (expansion == 0)
+ expansion = sh_get_env_value ("APPDATA");
+#endif
/* If there is no HOME variable, look up the directory in
the password database. */
if (expansion)
{
dirname = glue_prefix_and_suffix (expansion, filename, user_len);
- free (username);
- free (expansion);
+ xfree (username);
+ xfree (expansion);
return (dirname);
}
}
/* No preexpansion hook, or the preexpansion hook failed. Look in the
password database. */
dirname = (char *)NULL;
-#ifdef HAVE_GETPWNAM
+#if defined (HAVE_GETPWNAM)
user_entry = getpwnam (username);
+#else
+ user_entry = 0;
+#endif
if (user_entry == 0)
{
/* If the calling program has a special syntax for expanding tildes,
if (expansion)
{
dirname = glue_prefix_and_suffix (expansion, filename, user_len);
- free (expansion);
+ xfree (expansion);
}
}
- free (username);
/* If we don't have a failure hook, or if the failure hook did not
expand the tilde, return a copy of what we were passed. */
if (dirname == 0)
dirname = savestring (filename);
}
+#if defined (HAVE_GETPWENT)
else
- {
- free (username);
- dirname = glue_prefix_and_suffix (user_entry->pw_dir, filename, user_len);
- }
+ dirname = glue_prefix_and_suffix (user_entry->pw_dir, filename, user_len);
+#endif
+ xfree (username);
+#if defined (HAVE_GETPWENT)
endpwent ();
#endif
return (dirname);
#undef NULL
#include <stdio.h>
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
char *result, line[512];
int done = 0;
exit (0);
}
-static void memory_error_and_abort ();
+static void memory_error_and_abort (void);
static void *
-xmalloc (bytes)
- size_t bytes;
+xmalloc (size_t bytes)
{
void *temp = (char *)malloc (bytes);
}
static void *
-xrealloc (pointer, bytes)
- void *pointer;
- int bytes;
+xrealloc (void *pointer, int bytes)
{
void *temp;
}
static void
-memory_error_and_abort ()
+memory_error_and_abort (void)
{
fprintf (stderr, "readline: out of virtual memory\n");
abort ();
projects / thirdparty / binutils-gdb.git / blobdiff