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Bash-4.3 distribution sources and documentation

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This commit is contained in:
Chet Ramey
2014-02-26 09:36:43 -05:00
parent 4539d736f1
commit ac50fbac37
497 changed files with 129395 additions and 87598 deletions
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60
shell.c
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@@ -1,6 +1,6 @@
/* shell.c -- GNU's idea of the POSIX shell specification. */
/* Copyright (C) 1987-2010 Free Software Foundation, Inc.
/* Copyright (C) 1987-2012 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@@ -214,7 +214,11 @@ static int make_login_shell; /* Make this shell be a `-bash' shell. */
static int want_initial_help; /* --help option */
int debugging_mode = 0; /* In debugging mode with --debugger */
int no_line_editing = 0; /* Don't do fancy line editing. */
#if defined (READLINE)
int no_line_editing = 0; /* non-zero -> don't do fancy line editing. */
#else
int no_line_editing = 1; /* can't have line editing without readline */
#endif
int dump_translatable_strings; /* Dump strings in $"...", don't execute. */
int dump_po_strings; /* Dump strings in $"..." in po format */
int wordexp_only = 0; /* Do word expansion only */
@@ -248,7 +252,9 @@ static const struct {
{ "noprofile", Int, &no_profile, (char **)0x0 },
{ "norc", Int, &no_rc, (char **)0x0 },
{ "posix", Int, &posixly_correct, (char **)0x0 },
#if defined (WORDEXP_OPTION)
{ "protected", Int, &protected_mode, (char **)0x0 },
#endif
{ "rcfile", Charp, (int *)0x0, &bashrc_file },
#if defined (RESTRICTED_SHELL)
{ "restricted", Int, &restricted, (char **)0x0 },
@@ -375,7 +381,7 @@ main (argc, argv, env)
#endif
/* Catch early SIGINTs. */
code = setjmp (top_level);
code = setjmp_nosigs (top_level);
if (code)
exit (2);
@@ -441,7 +447,7 @@ main (argc, argv, env)
shell_name++;
shell_reinitialize ();
if (setjmp (top_level))
if (setjmp_nosigs (top_level))
exit (2);
}
@@ -714,7 +720,7 @@ main (argc, argv, env)
/* Bind remaining args to $1 ... $n */
arg_index = bind_args (argv, arg_index, argc, 1);
if (debugging_mode && locally_skip_execution == 0 && running_setuid == 0)
if (debugging_mode && locally_skip_execution == 0 && running_setuid == 0 && dollar_vars[1])
start_debugger ();
/* Do the things that should be done only for interactive shells. */
@@ -913,7 +919,7 @@ exit_shell (s)
#endif /* PROCESS_SUBSTITUTION */
#if defined (HISTORY)
if (interactive_shell)
if (remember_on_history)
maybe_save_shell_history ();
#endif /* HISTORY */
@@ -953,6 +959,24 @@ sh_exit (s)
exit (s);
}
/* Exit a subshell, which includes calling the exit trap. We don't want to
do any more cleanup, since a subshell is created as an exact copy of its
parent. */
void
subshell_exit (s)
int s;
{
fflush (stdout);
fflush (stderr);
/* Do trap[0] if defined. Allow it to override the exit status
passed to us. */
if (signal_is_trapped (0))
s = run_exit_trap ();
sh_exit (s);
}
/* Source the bash startup files. If POSIXLY_CORRECT is non-zero, we obey
the Posix.2 startup file rules: $ENV is expanded, and if the file it
names exists, that file is sourced. The Posix.2 rules are in effect
@@ -1216,13 +1240,13 @@ run_wordexp (words)
int code, nw, nb;
WORD_LIST *wl, *tl, *result;
code = setjmp (top_level);
code = setjmp_nosigs (top_level);
if (code != NOT_JUMPED)
{
switch (code)
{
/* Some kind of throw to top_level has occured. */
/* Some kind of throw to top_level has occurred. */
case FORCE_EOF:
return last_command_exit_value = 127;
case ERREXIT:
@@ -1291,7 +1315,7 @@ run_one_command (command)
{
int code;
code = setjmp (top_level);
code = setjmp_nosigs (top_level);
if (code != NOT_JUMPED)
{
@@ -1300,7 +1324,7 @@ run_one_command (command)
#endif /* PROCESS_SUBSTITUTION */
switch (code)
{
/* Some kind of throw to top_level has occured. */
/* Some kind of throw to top_level has occurred. */
case FORCE_EOF:
return last_command_exit_value = 127;
case ERREXIT:
@@ -1583,7 +1607,7 @@ set_shell_name (argv0)
{
if (*shell_name == '-')
shell_name++;
login_shell++;
login_shell = 1;
}
if (shell_name[0] == 's' && shell_name[1] == 'h' && shell_name[2] == '\0')
@@ -1619,7 +1643,9 @@ init_noninteractive ()
expand_aliases = posixly_correct; /* XXX - was 0 not posixly_correct */
no_line_editing = 1;
#if defined (JOB_CONTROL)
set_job_control (0);
/* Even if the shell is not interactive, enable job control if the -i or
-m option is supplied at startup. */
set_job_control (forced_interactive||jobs_m_flag);
#endif /* JOB_CONTROL */
}
@@ -1638,7 +1664,11 @@ get_current_user_info ()
/* Don't fetch this more than once. */
if (current_user.user_name == 0)
{
#if defined (__TANDEM)
entry = getpwnam (getlogin ());
#else
entry = getpwuid (current_user.uid);
#endif
if (entry)
{
current_user.user_name = savestring (entry->pw_name);
@@ -1712,7 +1742,7 @@ shell_initialize ()
#endif
/* Initialize the data structures for storing and running jobs. */
initialize_job_control (0);
initialize_job_control (jobs_m_flag);
/* Initialize input streams to null. */
initialize_bash_input ();
@@ -1757,6 +1787,8 @@ shell_reinitialize ()
forced_interactive = interactive_shell = subshell_environment = 0;
expand_aliases = 0;
/* XXX - should we set jobs_m_flag to 0 here? */
#if defined (HISTORY)
bash_history_reinit (0);
#endif /* HISTORY */
@@ -1800,7 +1832,7 @@ show_shell_usage (fp, extra)
fprintf (fp, "\t--%s\n", long_args[i].name);
fputs (_("Shell options:\n"), fp);
fputs (_("\t-irsD or -c command or -O shopt_option\t\t(invocation only)\n"), fp);
fputs (_("\t-ilrsD or -c command or -O shopt_option\t\t(invocation only)\n"), fp);
for (i = 0, set_opts = 0; shell_builtins[i].name; i++)
if (STREQ (shell_builtins[i].name, "set"))