Vladimir N. Oleynik writes:

Last patch have synced form Manuel Nova III xxreadtoken() function,
corrected (C) form dash debian/copyright, removed my small mistake
with IFS_BROKEN (thanks by Herbert), and synced cmdedit.c from
current CVS (removed libc5 support, your email correction, my (C) year
corertion).
This commit is contained in:
Eric Andersen 2003-07-29 06:38:40 +00:00
parent 9cdef5d928
commit 81fe123040
2 changed files with 97 additions and 33 deletions

View File

@ -5,6 +5,10 @@
* Copyright (c) 1989, 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Copyright (c) 1997-2003 Herbert Xu <herbert@debian.org>
* was re-ported from NetBSD and debianized.
*
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
@ -22,14 +26,11 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This version of ash is adapted from the source in Debian's ash 0.3.8-5
* package.
* Maintainer Herbert Xu <herbert@debian.org> (C) 1997-2002
*
* Modified by Vladimir Oleynik <dzo@simtreas.ru> to be used in busybox
*
*
* Original copyright notice is retained at the end of this file.
* Original BSD copyright notice is retained at the end of this file.
*/
/*
@ -1485,8 +1486,11 @@ static const char defpathvar[] =
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin";
#ifdef IFS_BROKEN
static const char defifsvar[] = "IFS= \t\n";
#endif
#define defifs (defifsvar + 4)
#else
static const char defifs[] = " \t\n";
#endif
static struct var varinit[] = {
#ifdef IFS_BROKEN
@ -9848,6 +9852,89 @@ out:
* have parseword (readtoken1?) handle both words and redirection.]
*/
#define NEW_xxreadtoken
#ifdef NEW_xxreadtoken
/* singles must be first! */
static const char xxreadtoken_chars[7] = { '\n', '(', ')', '&', '|', ';', 0 };
static const char xxreadtoken_tokens[] = {
TNL, TLP, TRP, /* only single occurrence allowed */
TBACKGND, TPIPE, TSEMI, /* if single occurrence */
TEOF, /* corresponds to trailing nul */
TAND, TOR, TENDCASE, /* if double occurrence */
};
#define xxreadtoken_doubles \
(sizeof(xxreadtoken_tokens) - sizeof(xxreadtoken_chars))
#define xxreadtoken_singles \
(sizeof(xxreadtoken_chars) - xxreadtoken_doubles - 1)
static int xxreadtoken()
{
int c;
if (tokpushback) {
tokpushback = 0;
return lasttoken;
}
if (needprompt) {
setprompt(2);
needprompt = 0;
}
startlinno = plinno;
for (;;) { /* until token or start of word found */
c = pgetc_macro();
if ((c != ' ') && (c != '\t')
#ifdef CONFIG_ASH_ALIAS
&& (c != PEOA)
#endif
) {
if (c == '#') {
while ((c = pgetc()) != '\n' && c != PEOF);
pungetc();
} else if (c == '\\') {
if (pgetc() != '\n') {
pungetc();
goto READTOKEN1;
}
startlinno = ++plinno;
if (doprompt)
setprompt(2);
} else {
const char *p
= xxreadtoken_chars + sizeof(xxreadtoken_chars) - 1;
if (c != PEOF) {
if (c == '\n') {
plinno++;
needprompt = doprompt;
}
p = strchr(xxreadtoken_chars, c);
if (p == NULL) {
READTOKEN1:
return readtoken1(c, BASESYNTAX, (char *) NULL, 0);
}
if (p - xxreadtoken_chars >= xxreadtoken_singles) {
if (pgetc() == *p) { /* double occurrence? */
p += xxreadtoken_doubles + 1;
} else {
pungetc();
}
}
}
return lasttoken = xxreadtoken_tokens[p - xxreadtoken_chars];
}
}
}
}
#else
#define RETURN(token) return lasttoken = token
static int
@ -9918,7 +10005,7 @@ breakloop:
return readtoken1(c, BASESYNTAX, (char *)NULL, 0);
#undef RETURN
}
#endif /* NEW_xxreadtoken */
/*
@ -10909,10 +10996,6 @@ redirect(union node *redir, int flags)
}
/*
* Undo the effects of the last redirection.
*/
@ -10962,7 +11045,6 @@ clearredir(int drop)
}
/*
* Copy a file descriptor to be >= to. Returns -1
* if the source file descriptor is closed, EMPTY if there are no unused
@ -11073,7 +11155,6 @@ binop:
}
static void
shcmd(union node *cmd, FILE *fp)
{
@ -11422,7 +11503,6 @@ trapcmd(int argc, char **argv)
}
/*
* Clear traps on a fork.
*/
@ -11445,7 +11525,6 @@ clear_traps(void)
}
/*
* Set the signal handler for the specified signal. The routine figures
* out what it should be set to.
@ -11546,7 +11625,6 @@ ignoresig(int signo)
}
/*
* Signal handler.
*/
@ -11565,7 +11643,6 @@ onsig(int signo)
}
/*
* Called to execute a trap. Perhaps we should avoid entering new trap
* handlers while we are executing a trap handler.
@ -11591,12 +11668,10 @@ dotrap(void)
}
/*
* Controls whether the shell is interactive or not.
*/
void
setinteractive(int on)
{
@ -11691,7 +11766,6 @@ exitshell(void)
}
#endif
out:
out1c('\n');
_exit(status);
/* NOTREACHED */
}
@ -11780,7 +11854,6 @@ setvar(const char *name, const char *val, int flags)
}
/*
* Same as setvar except that the variable and value are passed in
* the first argument as name=value. Since the first argument will
@ -11830,7 +11903,6 @@ setvareq(char *s, int flags)
}
/*
* Process a linked list of variable assignments.
*/
@ -11866,7 +11938,6 @@ lookupvar(const char *name)
}
/*
* Search the environment of a builtin command.
*/
@ -11884,7 +11955,6 @@ bltinlookup(const char *name)
}
/*
* Generate a list of variables satisfying the given conditions.
*/
@ -11917,7 +11987,6 @@ listvars(int on, int off, char ***end)
}
/*
* POSIX requires that 'set' (but not export or readonly) output the
* variables in lexicographic order - by the locale's collating order (sigh).
@ -12054,7 +12123,6 @@ localcmd(int argc, char **argv)
/*
* Called after a function returns.
* Interrupts must be off.
@ -12568,7 +12636,7 @@ ulimitcmd(int argc, char **argv)
if (all || argptr[1])
error("too many arguments");
if (strcmp(p, "unlimited") == 0)
if (strncmp(p, "unlimited\n", 9) == 0)
val = RLIM_INFINITY;
else {
val = (rlim_t) 0;

View File

@ -2,14 +2,14 @@
/*
* Termios command line History and Editting.
*
* Copyright (c) 1986-2001 may safely be consumed by a BSD or GPL license.
* Copyright (c) 1986-2003 may safely be consumed by a BSD or GPL license.
* Written by: Vladimir Oleynik <dzo@simtreas.ru>
*
* Used ideas:
* Adam Rogoyski <rogoyski@cs.utexas.edu>
* Dave Cinege <dcinege@psychosis.com>
* Jakub Jelinek (c) 1995
* Erik Andersen <andersee@debian.org> (Majorly adjusted for busybox)
* Erik Andersen <andersen@codepoet.org> (Majorly adjusted for busybox)
*
* This code is 'as is' with no warranty.
*
@ -163,11 +163,6 @@ static int my_gid;
#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
/* It seems that libc5 doesn't know what a sighandler_t is... */
#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
typedef void (*sighandler_t) (int);
#endif
static void cmdedit_setwidth(int w, int redraw_flg);
static void win_changed(int nsig)
@ -264,6 +259,7 @@ static inline void out1str(const char *s)
if ( s )
fputs(s, stdout);
}
static inline void beep(void)
{
putchar('\007');