/* variables.c -- Functions for hacking shell variables. */
-/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
- Bash 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.
+ Bash 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.
- Bash 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.
+ Bash 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 Bash; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "config.h"
#include "posixstat.h"
#include "posixtime.h"
-#if defined (qnx)
-# if defined (qnx6)
-# include <sy/netmgr.h>
+#if defined (__QNX__)
+# if defined (__QNXNTO__)
+# include <sys/netmgr.h>
# else
# include <sys/vc.h>
-# endif /* !qnx6 */
-#endif /* qnx */
+# endif /* !__QNXNTO__ */
+#endif /* __QNX__ */
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#include <stdio.h>
#include "chartypes.h"
-#include <pwd.h>
+#if defined (HAVE_PWD_H)
+# include <pwd.h>
+#endif
#include "bashansi.h"
#include "bashintl.h"
#include "input.h"
#include "hashcmd.h"
#include "pathexp.h"
+#include "alias.h"
#include "builtins/getopt.h"
#include "builtins/common.h"
extern char *this_command_name;
extern char *command_execution_string;
extern time_t shell_start_time;
+extern int assigning_in_environment;
+extern int executing_builtin;
#if defined (READLINE)
extern int no_line_editing;
/* The value of $$. */
pid_t dollar_dollar_pid;
+/* Non-zero means that we have to remake EXPORT_ENV. */
+int array_needs_making = 1;
+
+/* The number of times BASH has been executed. This is set
+ by initialize_variables (). */
+int shell_level = 0;
+
/* An array which is passed to commands as their environment. It is
manufactured from the union of the initial environment and the
shell variables that are marked for export. */
static int winsize_assigned; /* assigned to LINES or COLUMNS */
#endif
-/* Non-zero means that we have to remake EXPORT_ENV. */
-int array_needs_making = 1;
-
-/* The number of times BASH has been executed. This is set
- by initialize_variables (). */
-int shell_level = 0;
-
/* Some forward declarations. */
static void create_variable_tables __P((void));
static void make_vers_array __P((void));
#endif
-static SHELL_VAR *null_assign __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *null_assign __P((SHELL_VAR *, char *, arrayind_t, char *));
#if defined (ARRAY_VARS)
-static SHELL_VAR *null_array_assign __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *null_array_assign __P((SHELL_VAR *, char *, arrayind_t, char *));
#endif
static SHELL_VAR *get_self __P((SHELL_VAR *));
#if defined (ARRAY_VARS)
static SHELL_VAR *init_dynamic_array_var __P((char *, sh_var_value_func_t *, sh_var_assign_func_t *, int));
+static SHELL_VAR *init_dynamic_assoc_var __P((char *, sh_var_value_func_t *, sh_var_assign_func_t *, int));
#endif
-static SHELL_VAR *assign_seconds __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *assign_seconds __P((SHELL_VAR *, char *, arrayind_t, char *));
static SHELL_VAR *get_seconds __P((SHELL_VAR *));
static SHELL_VAR *init_seconds_var __P((void));
static int brand __P((void));
static void sbrand __P((unsigned long)); /* set bash random number generator. */
-static SHELL_VAR *assign_random __P((SHELL_VAR *, char *, arrayind_t));
+static void seedrand __P((void)); /* seed generator randomly */
+static SHELL_VAR *assign_random __P((SHELL_VAR *, char *, arrayind_t, char *));
static SHELL_VAR *get_random __P((SHELL_VAR *));
-static SHELL_VAR *assign_lineno __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *assign_lineno __P((SHELL_VAR *, char *, arrayind_t, char *));
static SHELL_VAR *get_lineno __P((SHELL_VAR *));
-static SHELL_VAR *assign_subshell __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *assign_subshell __P((SHELL_VAR *, char *, arrayind_t, char *));
static SHELL_VAR *get_subshell __P((SHELL_VAR *));
+static SHELL_VAR *get_bashpid __P((SHELL_VAR *));
+
#if defined (HISTORY)
static SHELL_VAR *get_histcmd __P((SHELL_VAR *));
#endif
+#if defined (READLINE)
+static SHELL_VAR *get_comp_wordbreaks __P((SHELL_VAR *));
+static SHELL_VAR *assign_comp_wordbreaks __P((SHELL_VAR *, char *, arrayind_t, char *));
+#endif
+
#if defined (PUSHD_AND_POPD) && defined (ARRAY_VARS)
-static SHELL_VAR *assign_dirstack __P((SHELL_VAR *, char *, arrayind_t));
+static SHELL_VAR *assign_dirstack __P((SHELL_VAR *, char *, arrayind_t, char *));
static SHELL_VAR *get_dirstack __P((SHELL_VAR *));
#endif
#if defined (ARRAY_VARS)
static SHELL_VAR *get_groupset __P((SHELL_VAR *));
+
+static SHELL_VAR *build_hashcmd __P((SHELL_VAR *));
+static SHELL_VAR *get_hashcmd __P((SHELL_VAR *));
+static SHELL_VAR *assign_hashcmd __P((SHELL_VAR *, char *, arrayind_t, char *));
+static SHELL_VAR *build_aliasvar __P((SHELL_VAR *));
+static SHELL_VAR *get_aliasvar __P((SHELL_VAR *));
+static SHELL_VAR *assign_aliasvar __P((SHELL_VAR *, char *, arrayind_t, char *));
#endif
static SHELL_VAR *get_funcname __P((SHELL_VAR *));
static SHELL_VAR *make_new_variable __P((const char *, HASH_TABLE *));
static SHELL_VAR *bind_variable_internal __P((const char *, char *, HASH_TABLE *, int, int));
+static void dispose_variable_value __P((SHELL_VAR *));
static void free_variable_hash_data __P((PTR_T));
static VARLIST *vlist_alloc __P((int));
/* Now, name = env variable name, string = env variable value, and
char_index == strlen (name) */
+ temp_var = (SHELL_VAR *)NULL;
+
/* If exported function, define it now. Don't import functions from
the environment in privileged mode. */
if (privmode == 0 && read_but_dont_execute == 0 && STREQN ("() {", string, 4))
}
# endif
#endif
- else
+ else if (legal_identifier (name))
{
temp_var = bind_variable (name, string, 0);
VSETATTR (temp_var, (att_exported | att_imported));
set_auto_export (temp_var); /* XXX */
#endif
-#if defined (qnx)
+#if defined (__QNX__)
/* set node id -- don't import it from the environment */
{
char node_name[22];
-# if defined (qnx6)
+# if defined (__QNXNTO__)
netmgr_ndtostr(ND2S_LOCAL_STR, ND_LOCAL_NODE, node_name, sizeof(node_name));
# else
qnx_nidtostr (getnid (), node_name, sizeof (node_name));
#endif /* HISTORY */
/* Seed the random number generator. */
- sbrand (dollar_dollar_pid + shell_start_time);
+ seedrand ();
/* Handle some "special" variables that we may have inherited from a
parent shell. */
{
sv_history_control ("HISTCONTROL");
sv_histignore ("HISTIGNORE");
+ sv_histtimefmt ("HISTTIMEFORMAT");
}
#endif /* HISTORY */
#if defined (ARRAY_VARS)
else if (array_p (var))
print_array_assignment (var, 0);
+ else if (assoc_p (var))
+ print_assoc_assignment (var, 0);
#endif /* ARRAY_VARS */
else
{
print_var_function (var)
SHELL_VAR *var;
{
+ char *x;
+
if (function_p (var) && var_isset (var))
- printf ("%s", named_function_string ((char *)NULL, function_cell(var), 1));
+ {
+ x = named_function_string ((char *)NULL, function_cell(var), FUNC_MULTILINE|FUNC_EXTERNAL);
+ printf ("%s", x);
+ }
}
/* **************************************************************** */
} \
while (0)
+#define INIT_DYNAMIC_ASSOC_VAR(var, gfunc, afunc) \
+ do \
+ { \
+ v = make_new_assoc_variable (var); \
+ v->dynamic_value = gfunc; \
+ v->assign_func = afunc; \
+ } \
+ while (0)
+
static SHELL_VAR *
-null_assign (self, value, unused)
+null_assign (self, value, unused, key)
SHELL_VAR *self;
char *value;
arrayind_t unused;
+ char *key;
{
return (self);
}
#if defined (ARRAY_VARS)
static SHELL_VAR *
-null_array_assign (self, value, ind)
+null_array_assign (self, value, ind, key)
SHELL_VAR *self;
char *value;
arrayind_t ind;
+ char *key;
{
return (self);
}
VSETATTR (v, attrs);
return v;
}
-#endif
+static SHELL_VAR *
+init_dynamic_assoc_var (name, getfunc, setfunc, attrs)
+ char *name;
+ sh_var_value_func_t *getfunc;
+ sh_var_assign_func_t *setfunc;
+ int attrs;
+{
+ SHELL_VAR *v;
+
+ v = find_variable (name);
+ if (v)
+ return (v);
+ INIT_DYNAMIC_ASSOC_VAR (name, getfunc, setfunc);
+ if (attrs)
+ VSETATTR (v, attrs);
+ return v;
+}
+#endif
/* The value of $SECONDS. This is the number of seconds since shell
invocation, or, the number of seconds since the last assignment + the
static intmax_t seconds_value_assigned;
static SHELL_VAR *
-assign_seconds (self, value, unused)
+assign_seconds (self, value, unused, key)
SHELL_VAR *self;
char *value;
arrayind_t unused;
+ char *key;
{
if (legal_number (value, &seconds_value_assigned) == 0)
seconds_value_assigned = 0;
static int
brand ()
{
+#if 0
rseed = rseed * 1103515245 + 12345;
return ((unsigned int)((rseed >> 16) & 32767)); /* was % 32768 */
+#else
+ /* From "Random number generators: good ones are hard to find",
+ Park and Miller, Communications of the ACM, vol. 31, no. 10,
+ October 1988, p. 1195. filtered through FreeBSD */
+ long h, l;
+
+ if (rseed == 0)
+ seedrand ();
+ h = rseed / 127773;
+ l = rseed % 127773;
+ rseed = 16807 * l - 2836 * h;
+#if 0
+ if (rseed < 0)
+ rseed += 0x7fffffff;
+#endif
+ return ((unsigned int)(rseed & 32767)); /* was % 32768 */
+#endif
}
/* Set the random number generator seed to SEED. */
last_random_value = 0;
}
+static void
+seedrand ()
+{
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+ sbrand (tv.tv_sec ^ tv.tv_usec ^ getpid ());
+}
+
static SHELL_VAR *
-assign_random (self, value, unused)
+assign_random (self, value, unused, key)
SHELL_VAR *self;
char *value;
arrayind_t unused;
+ char *key;
{
sbrand (strtoul (value, (char **)NULL, 10));
if (subshell_environment)
- seeded_subshell = 1;
+ seeded_subshell = getpid ();
return (self);
}
int
get_random_number ()
{
- int rv;
+ int rv, pid;
/* Reset for command and process substitution. */
- if (subshell_environment && seeded_subshell == 0)
+ pid = getpid ();
+ if (subshell_environment && seeded_subshell != pid)
{
- sbrand (rseed + getpid() + NOW);
- seeded_subshell = 1;
+ seedrand ();
+ seeded_subshell = pid;
}
do
}
static SHELL_VAR *
-assign_lineno (var, value, unused)
+assign_lineno (var, value, unused, key)
SHELL_VAR *var;
char *value;
arrayind_t unused;
+ char *key;
{
intmax_t new_value;
}
static SHELL_VAR *
-assign_subshell (var, value, unused)
+assign_subshell (var, value, unused, key)
SHELL_VAR *var;
char *value;
arrayind_t unused;
+ char *key;
{
intmax_t new_value;
return (var);
}
+static SHELL_VAR *
+get_bashpid (var)
+ SHELL_VAR *var;
+{
+ int pid;
+ char *p;
+
+ pid = getpid ();
+ p = itos (pid);
+
+ FREE (value_cell (var));
+ VSETATTR (var, att_integer|att_readonly);
+ var_setvalue (var, p);
+ return (var);
+}
+
static SHELL_VAR *
get_bash_command (var)
SHELL_VAR *var;
{
char *p;
-
if (the_printed_command_except_trap)
p = savestring (the_printed_command_except_trap);
else
if (rl_completer_word_break_characters == 0 && bash_readline_initialized == 0)
enable_hostname_completion (perform_hostname_completion);
- var_setvalue (var, rl_completer_word_break_characters);
+ FREE (value_cell (var));
+ var_setvalue (var, savestring (rl_completer_word_break_characters));
return (var);
}
/* When this function returns, rl_completer_word_break_characters points to
malloced memory. */
static SHELL_VAR *
-assign_comp_wordbreaks (self, value, unused)
+assign_comp_wordbreaks (self, value, unused, key)
SHELL_VAR *self;
char *value;
arrayind_t unused;
+ char *key;
{
if (rl_completer_word_break_characters &&
rl_completer_word_break_characters != rl_basic_word_break_characters)
#if defined (PUSHD_AND_POPD) && defined (ARRAY_VARS)
static SHELL_VAR *
-assign_dirstack (self, value, ind)
+assign_dirstack (self, value, ind, key)
SHELL_VAR *self;
char *value;
arrayind_t ind;
+ char *key;
{
set_dirstack_element (ind, 1, value);
return self;
}
return (self);
}
+
+static SHELL_VAR *
+build_hashcmd (self)
+ SHELL_VAR *self;
+{
+ HASH_TABLE *h;
+ int i;
+ char *k, *v;
+ BUCKET_CONTENTS *item;
+
+ h = assoc_cell (self);
+ if (h)
+ assoc_dispose (h);
+
+ if (hashed_filenames == 0 || HASH_ENTRIES (hashed_filenames) == 0)
+ {
+ var_setvalue (self, (char *)NULL);
+ return self;
+ }
+
+ h = assoc_create (hashed_filenames->nbuckets);
+ for (i = 0; i < hashed_filenames->nbuckets; i++)
+ {
+ for (item = hash_items (i, hashed_filenames); item; item = item->next)
+ {
+ k = savestring (item->key);
+ v = pathdata(item)->path;
+ assoc_insert (h, k, v);
+ }
+ }
+
+ var_setvalue (self, (char *)h);
+ return self;
+}
+
+static SHELL_VAR *
+get_hashcmd (self)
+ SHELL_VAR *self;
+{
+ build_hashcmd (self);
+ return (self);
+}
+
+static SHELL_VAR *
+assign_hashcmd (self, value, ind, key)
+ SHELL_VAR *self;
+ char *value;
+ arrayind_t ind;
+ char *key;
+{
+ phash_insert (key, value, 0, 0);
+ return (build_hashcmd (self));
+}
+
+static SHELL_VAR *
+build_aliasvar (self)
+ SHELL_VAR *self;
+{
+ HASH_TABLE *h;
+ int i;
+ char *k, *v;
+ BUCKET_CONTENTS *item;
+
+ h = assoc_cell (self);
+ if (h)
+ assoc_dispose (h);
+
+ if (aliases == 0 || HASH_ENTRIES (aliases) == 0)
+ {
+ var_setvalue (self, (char *)NULL);
+ return self;
+ }
+
+ h = assoc_create (aliases->nbuckets);
+ for (i = 0; i < aliases->nbuckets; i++)
+ {
+ for (item = hash_items (i, aliases); item; item = item->next)
+ {
+ k = savestring (item->key);
+ v = ((alias_t *)(item->data))->value;
+ assoc_insert (h, k, v);
+ }
+ }
+
+ var_setvalue (self, (char *)h);
+ return self;
+}
+
+static SHELL_VAR *
+get_aliasvar (self)
+ SHELL_VAR *self;
+{
+ build_aliasvar (self);
+ return (self);
+}
+
+static SHELL_VAR *
+assign_aliasvar (self, value, ind, key)
+ SHELL_VAR *self;
+ char *value;
+ arrayind_t ind;
+ char *key;
+{
+ add_alias (key, value);
+ return (build_aliasvar (self));
+}
#endif /* ARRAY_VARS */
/* If ARRAY_VARS is not defined, this just returns the name of any
INIT_DYNAMIC_VAR ("LINENO", (char *)NULL, get_lineno, assign_lineno);
VSETATTR (v, att_integer);
+ INIT_DYNAMIC_VAR ("BASHPID", (char *)NULL, get_bashpid, null_assign);
+ VSETATTR (v, att_integer|att_readonly);
+
#if defined (HISTORY)
INIT_DYNAMIC_VAR ("HISTCMD", (char *)NULL, get_histcmd, (sh_var_assign_func_t *)NULL);
VSETATTR (v, att_integer);
# endif /* DEBUGGER */
v = init_dynamic_array_var ("BASH_SOURCE", get_self, null_array_assign, att_noassign|att_nounset);
v = init_dynamic_array_var ("BASH_LINENO", get_self, null_array_assign, att_noassign|att_nounset);
+
+ v = init_dynamic_assoc_var ("BASH_CMDS", get_hashcmd, assign_hashcmd, att_nofree);
+ v = init_dynamic_assoc_var ("BASH_ALIASES", get_aliasvar, assign_aliasvar, att_nofree);
#endif
v = init_funcname_var ();
then also search the temporarily built list of exported variables.
The lookup order is:
temporary_env
- shell_variables list
+ shell_variables list
*/
SHELL_VAR *
find_variable (name)
const char *name;
{
- return (find_variable_internal (name, (expanding_redir == 0 && this_shell_builtin != 0)));
+ return (find_variable_internal (name, (expanding_redir == 0 && (assigning_in_environment || executing_builtin))));
}
/* Look up the function entry whose name matches STRING.
find_function_def (name)
const char *name;
{
+#if defined (DEBUGGER)
return ((FUNCTION_DEF *)hash_lookup (name, shell_function_defs));
+#else
+ return ((FUNCTION_DEF *)0);
+#endif
}
/* Return the value of VAR. VAR is assumed to have been the result of a
#if defined (ARRAY_VARS)
else if (array_p (var))
return (array_reference (array_cell (var), 0));
+ else if (assoc_p (var))
+ return (assoc_reference (assoc_cell (var), "0"));
#endif
else
return (value_cell (var));
}
if (old_var == 0)
- new_var = bind_variable_internal (name, "", vc->table, HASH_NOSRCH, 0);
+ new_var = make_new_variable (name, vc->table);
else
{
new_var = make_new_variable (name, vc->table);
inherit its value. Watch to see if this causes problems with
things like `x=4 local x'. */
if (was_tmpvar)
- var_setvalue (new_var, savestring (tmp_value));
+ var_setvalue (new_var, savestring (tmp_value));
new_var->attributes = exported_p (old_var) ? att_exported : 0;
}
return (new_var);
}
-#if defined (ARRAY_VARS)
-SHELL_VAR *
-make_local_array_variable (name)
- char *name;
-{
- SHELL_VAR *var;
- ARRAY *array;
-
- var = make_local_variable (name);
- if (var == 0 || array_p (var))
- return var;
-
- array = array_create ();
-
- FREE (value_cell(var));
- var_setarray (var, array);
- VSETATTR (var, att_array);
- return var;
-}
-#endif /* ARRAY_VARS */
-
/* Create a new shell variable with name NAME. */
static SHELL_VAR *
new_shell_variable (name)
entry = make_new_variable (name, global_variables->table);
array = array_create ();
+
var_setarray (entry, array);
VSETATTR (entry, att_array);
return entry;
}
+
+SHELL_VAR *
+make_local_array_variable (name)
+ char *name;
+{
+ SHELL_VAR *var;
+ ARRAY *array;
+
+ var = make_local_variable (name);
+ if (var == 0 || array_p (var))
+ return var;
+
+ array = array_create ();
+
+ dispose_variable_value (var);
+ var_setarray (var, array);
+ VSETATTR (var, att_array);
+ return var;
+}
+
+SHELL_VAR *
+make_new_assoc_variable (name)
+ char *name;
+{
+ SHELL_VAR *entry;
+ HASH_TABLE *hash;
+
+ entry = make_new_variable (name, global_variables->table);
+ hash = assoc_create (0);
+
+ var_setassoc (entry, hash);
+ VSETATTR (entry, att_assoc);
+ return entry;
+}
+
+SHELL_VAR *
+make_local_assoc_variable (name)
+ char *name;
+{
+ SHELL_VAR *var;
+ HASH_TABLE *hash;
+
+ var = make_local_variable (name);
+ if (var == 0 || assoc_p (var))
+ return var;
+
+ dispose_variable_value (var);
+ hash = assoc_create (0);
+
+ var_setassoc (var, hash);
+ VSETATTR (var, att_assoc);
+ return var;
+}
#endif
char *
{
char *retval, *oval;
intmax_t lval, rval;
- int expok, olen;
+ int expok, olen, op;
/* If this variable has had its type set to integer (via `declare -i'),
then do expression evaluation on it and store the result. The
rval += lval;
retval = itos (rval);
}
+#if defined (CASEMOD_ATTRS)
+ else if (capcase_p (var) || uppercase_p (var) || lowercase_p (var))
+ {
+ if (flags & ASS_APPEND)
+ {
+ oval = get_variable_value (var);
+ if (oval == 0) /* paranoia */
+ oval = "";
+ olen = STRLEN (oval);
+ retval = (char *)xmalloc (olen + (value ? STRLEN (value) : 0) + 1);
+ strcpy (retval, oval);
+ if (value)
+ strcpy (retval+olen, value);
+ }
+ else if (*value)
+ retval = savestring (value);
+ else
+ {
+ retval = (char *)xmalloc (1);
+ retval[0] = '\0';
+ }
+ op = capcase_p (var) ? CASE_CAPITALIZE
+ : (uppercase_p (var) ? CASE_UPPER : CASE_LOWER);
+ oval = sh_modcase (retval, (char *)0, op);
+ free (retval);
+ retval = oval;
+ }
+#endif /* CASEMOD_ATTRS */
else if (value)
{
if (flags & ASS_APPEND)
{
INVALIDATE_EXPORTSTR (entry);
newval = (aflags & ASS_APPEND) ? make_variable_value (entry, value, aflags) : value;
- entry = (*(entry->assign_func)) (entry, newval, -1);
+ entry = (*(entry->assign_func)) (entry, newval, -1, 0);
if (newval != value)
- free (newval);
+ free (newval);
return (entry);
}
else
array_insert (array_cell (entry), 0, newval);
free (newval);
}
+ else if (assoc_p (entry))
+ {
+ assoc_insert (assoc_cell (entry), "0", newval);
+ free (newval);
+ }
else
#endif
{
for (vc = shell_variables; vc; vc = vc->down)
{
if (vc_isfuncenv (vc) || vc_isbltnenv (vc))
- {
- v = hash_lookup (name, vc->table);
- if (v)
+ {
+ v = hash_lookup (name, vc->table);
+ if (v)
return (bind_variable_internal (name, value, vc->table, 0, flags));
- }
+ }
}
return (bind_variable_internal (name, value, global_variables->table, 0, flags));
}
/* If we're appending, we need the old value, so use
make_variable_value */
t = (aflags & ASS_APPEND) ? make_variable_value (var, value, aflags) : value;
- (*(var->assign_func)) (var, t, -1);
+ (*(var->assign_func)) (var, t, -1, 0);
if (t != value && t)
free (t);
}
return (entry);
}
+#if defined (DEBUGGER)
/* Bind a function definition, which includes source file and line number
information in addition to the command, into the FUNCTION_DEF hash table.*/
void
elt->data = (PTR_T *)entry;
}
}
+#endif /* DEBUGGER */
/* Add STRING, which is of the form foo=bar, to the temporary environment
HASH_TABLE (temporary_env). The functions in execute_cmd.c are
}
temp = name + offset + 1;
-#if 0
- temp = (xstrchr (temp, '~') != 0) ? bash_tilde_expand (temp, 1) : savestring (temp);
- value = expand_string_unsplit_to_string (temp, 0);
- free (temp);
-#else
value = expand_assignment_string_to_string (temp, 0);
-#endif
}
if (temporary_env == 0)
var_setfunc (copy, copy_command (function_cell (var)));
#if defined (ARRAY_VARS)
else if (array_p (var))
- var_setarray (copy, dup_array (array_cell (var)));
+ var_setarray (copy, array_copy (array_cell (var)));
+ else if (assoc_p (var))
+ var_setassoc (copy, assoc_copy (assoc_cell (var)));
#endif
else if (value_cell (var))
var_setvalue (copy, savestring (value_cell (var)));
/* **************************************************************** */
/* Dispose of the information attached to VAR. */
-void
-dispose_variable (var)
+static void
+dispose_variable_value (var)
SHELL_VAR *var;
{
- if (var == 0)
- return;
-
if (function_p (var))
dispose_command (function_cell (var));
#if defined (ARRAY_VARS)
else if (array_p (var))
array_dispose (array_cell (var));
+ else if (assoc_p (var))
+ assoc_dispose (assoc_cell (var));
#endif
else
FREE (value_cell (var));
+}
+
+void
+dispose_variable (var)
+ SHELL_VAR *var;
+{
+ if (var == 0)
+ return;
+
+ if (nofree_p (var) == 0)
+ dispose_variable_value (var);
FREE_EXPORTSTR (var);
return 0;
}
+#if defined (DEBUGGER)
int
unbind_function_def (name)
const char *name;
return 0;
}
+#endif /* DEBUGGER */
/* Make the variable associated with NAME go away. HASH_LIST is the
hash table from which this variable should be deleted (either
We also need to add it back into the correct hash table. */
if (old_var && local_p (old_var) && variable_context == old_var->context)
{
+ if (nofree_p (old_var))
+ var_setvalue (old_var, (char *)NULL);
#if defined (ARRAY_VARS)
- if (array_p (old_var))
+ else if (array_p (old_var))
array_dispose (array_cell (old_var));
- else
+ else if (assoc_p (old_var))
+ assoc_dispose (assoc_cell (old_var));
#endif
+ else
FREE (value_cell (old_var));
/* Reset the attributes. Preserve the export attribute if the variable
- came from a temporary environment. Make sure it stays local, and
- make it invisible. */
+ came from a temporary environment. Make sure it stays local, and
+ make it invisible. */
old_var->attributes = (exported_p (old_var) && tempvar_p (old_var)) ? att_exported : 0;
VSETATTR (old_var, att_local);
VSETATTR (old_var, att_invisible);
{
hash_flush (temporary_env, pushf);
hash_dispose (temporary_env);
- temporary_env = (HASH_TABLE *)NULL;
+ temporary_env = (HASH_TABLE *)NULL;
array_needs_making = 1;
value = array_to_assignment_string (array_cell (var));
# else
continue; /* XXX array vars cannot yet be exported */
+# endif
+ else if (assoc_p (var))
+# if 0
+ value = assoc_to_assignment_string (assoc_cell (var));
+# else
+ continue; /* XXX associative array vars cannot yet be exported */
# endif
#endif
else
#if 0 /* not yet */
#if defined (ARRAY_VARS)
- if (array_p (var))
+ if (array_p (var) || assoc_p (var))
free (value);
#endif
#endif
if (array_needs_making)
{
if (export_env)
- strvec_flush (export_env);
+ strvec_flush (export_env);
/* Make a guess based on how many shell variables and functions we
have. Since there will always be array variables, and array
export_env[export_env_index = 0] = (char *)NULL;
/* Make a dummy variable context from the temporary_env, stick it on
- the front of shell_variables, call make_var_export_array on the
- whole thing to flatten it, and convert the list of SHELL_VAR *s
- to the form needed by the environment. */
+ the front of shell_variables, call make_var_export_array on the
+ whole thing to flatten it, and convert the list of SHELL_VAR *s
+ to the form needed by the environment. */
if (temporary_env)
- {
- tcxt = new_var_context ((char *)NULL, 0);
- tcxt->table = temporary_env;
- tcxt->down = shell_variables;
- }
+ {
+ tcxt = new_var_context ((char *)NULL, 0);
+ tcxt->table = temporary_env;
+ tcxt->down = shell_variables;
+ }
else
- tcxt = shell_variables;
+ tcxt = shell_variables;
temp_array = make_var_export_array (tcxt);
if (temp_array)
add_temp_array_to_env (temp_array, 0, 0);
if (tcxt != shell_variables)
- free (tcxt);
+ free (tcxt);
#if defined (RESTRICTED_SHELL)
/* Restricted shells may not export shell functions. */
{
t = v->down;
dispose_var_context (v);
- }
+ }
delete_all_variables (global_variables->table);
shell_variables = global_variables;
else if (r > 0)
/* Can't match any of rest of elements in sorted list. Take this out
if it causes problems in certain environments. */
- break;
+ break;
}
return -1;
}
(*(special_vars[i].function)) (name);
}
+/* Special variables that need hooks to be run when they are unset as part
+ of shell reinitialization should have their sv_ functions run here. */
+void
+reinit_special_variables ()
+{
+#if defined (READLINE)
+ sv_comp_wordbreaks ("COMP_WORDBREAKS");
+#endif
+ sv_globignore ("GLOBIGNORE");
+ sv_opterr ("OPTERR");
+}
+
void
sv_ifs (name)
char *name;
sv_globignore (name)
char *name;
{
- setup_glob_ignore (name);
+ if (privileged_mode == 0)
+ setup_glob_ignore (name);
}
#if defined (READLINE)
sv = find_variable (name);
if (sv == 0)
- rl_completer_word_break_characters = (char *)NULL;
+ reset_completer_word_break_chars ();
}
/* What to do just after one of the TERMxxx variables has changed.
projects / thirdparty / bash.git / blobdiff