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More sh updates (with related changes to everything else). Switched

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to using getopt and cleaned up the resulting mess.  if-then-else-fi
is now basically working (given a bunch of constraints).
 -Erik
This commit is contained in:
Eric Andersen
2000-07-28 15:14:45 +00:00
parent 6a99aaf020
commit 501c88b245
11 changed files with 421 additions and 193 deletions
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25
shell/cmdedit.c
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@ -84,6 +84,7 @@ static int cmdedit_termw = 80; /* actual terminal width */
static int cmdedit_scroll = 27; /* width of EOL scrolling region */
static int history_counter = 0; /* Number of commands in history list */
static int reset_term = 0; /* Set to true if the terminal needs to be reset upon exit */
static int exithandler_set = 0; /* Set to true when atexit() has been called */
struct history {
char *s;
@ -709,10 +710,32 @@ extern void cmdedit_read_input(char* prompt, char command[BUFSIZ])
extern void cmdedit_init(void)
{
atexit(cmdedit_reset_term);
if(exithandler_set == 0) {
atexit(cmdedit_reset_term); /* be sure to do this only once */
exithandler_set = 1;
}
signal(SIGKILL, clean_up_and_die);
signal(SIGINT, clean_up_and_die);
signal(SIGQUIT, clean_up_and_die);
signal(SIGTERM, clean_up_and_die);
}
/*
** Undo the effects of cmdedit_init() as good as we can:
** I am not aware of a way to revoke an atexit() handler,
** but, fortunately, our particular handler can be made
** a no-op by setting reset_term = 0.
*/
extern void cmdedit_terminate(void)
{
cmdedit_reset_term();
reset_term = 0;
signal(SIGKILL, SIG_DFL);
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
signal(SIGTERM, SIG_DFL);
}
#endif /* BB_FEATURE_SH_COMMAND_EDITING */