d1e4d7ce7d
Jobctl warning commented out. Largely untested. Change-Id: I4dffe23a2855a374628c820703b51591633aed64
923 lines
18 KiB
C
923 lines
18 KiB
C
/* $NetBSD: glob.c,v 1.27 2013/07/16 17:47:43 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1980, 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)glob.c 8.1 (Berkeley) 5/31/93";
|
|
#else
|
|
__RCSID("$NetBSD: glob.c,v 1.27 2013/07/16 17:47:43 christos Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <errno.h>
|
|
#include <glob.h>
|
|
#include <stdarg.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "csh.h"
|
|
#include "extern.h"
|
|
|
|
static int noglob;
|
|
static int gargsiz, pargsiz;
|
|
|
|
/*
|
|
* Values for gflag
|
|
*/
|
|
#define G_NONE 0 /* No globbing needed */
|
|
#define G_GLOB 1 /* string contains *?[] characters */
|
|
#define G_CSH 2 /* string contains ~`{ characters */
|
|
|
|
#define GLOBSPACE 100 /* Alloc increment */
|
|
|
|
#define LBRC '{'
|
|
#define RBRC '}'
|
|
#define LBRK '['
|
|
#define RBRK ']'
|
|
#define EOS '\0'
|
|
|
|
Char **gargv = NULL;
|
|
Char **pargv = NULL;
|
|
long gargc = 0;
|
|
long pargc = 0;
|
|
|
|
/*
|
|
* globbing is now done in two stages. In the first pass we expand
|
|
* csh globbing idioms ~`{ and then we proceed doing the normal
|
|
* globbing if needed ?*[
|
|
*
|
|
* Csh type globbing is handled in globexpand() and the rest is
|
|
* handled in glob() which is part of the 4.4BSD libc.
|
|
*
|
|
*/
|
|
static Char *globtilde(Char **, Char *);
|
|
static Char *handleone(Char *, Char **, int);
|
|
static Char **libglob(Char **);
|
|
static Char **globexpand(Char **);
|
|
static int globbrace(Char *, Char *, Char ***);
|
|
static void expbrace(Char ***, Char ***, size_t);
|
|
static int pmatch(Char *, Char *);
|
|
static void pword(void);
|
|
static void psave(int);
|
|
static void backeval(Char *, int);
|
|
|
|
static Char *
|
|
globtilde(Char **nv, Char *s)
|
|
{
|
|
Char gbuf[MAXPATHLEN], *b, *e, *gstart, *u;
|
|
|
|
gstart = gbuf;
|
|
*gstart++ = *s++;
|
|
u = s;
|
|
for (b = gstart, e = &gbuf[MAXPATHLEN - 1];
|
|
*s && *s != '/' && *s != ':' && b < e;
|
|
*b++ = *s++)
|
|
continue;
|
|
*b = EOS;
|
|
if (gethdir(gstart)) {
|
|
blkfree(nv);
|
|
if (*gstart)
|
|
stderror(ERR_UNKUSER, vis_str(gstart));
|
|
else
|
|
stderror(ERR_NOHOME);
|
|
}
|
|
b = &gstart[Strlen(gstart)];
|
|
while (*s)
|
|
*b++ = *s++;
|
|
*b = EOS;
|
|
--u;
|
|
xfree((ptr_t) u);
|
|
return (Strsave(gstart));
|
|
}
|
|
|
|
static int
|
|
globbrace(Char *s, Char *p, Char ***bl)
|
|
{
|
|
Char gbuf[MAXPATHLEN];
|
|
Char *lm, *pe, *pl, *pm, **nv, **vl;
|
|
int i, len, size;
|
|
|
|
size = GLOBSPACE;
|
|
nv = vl = xmalloc(sizeof(Char *) * (size_t)size);
|
|
*vl = NULL;
|
|
len = 0;
|
|
/* copy part up to the brace */
|
|
for (lm = gbuf, p = s; *p != LBRC; *lm++ = *p++)
|
|
continue;
|
|
|
|
/* check for balanced braces */
|
|
for (i = 0, pe = ++p; *pe; pe++)
|
|
if (*pe == LBRK) {
|
|
/* Ignore everything between [] */
|
|
for (++pe; *pe != RBRK && *pe != EOS; pe++)
|
|
continue;
|
|
if (*pe == EOS) {
|
|
blkfree(nv);
|
|
return (-RBRK);
|
|
}
|
|
}
|
|
else if (*pe == LBRC)
|
|
i++;
|
|
else if (*pe == RBRC) {
|
|
if (i == 0)
|
|
break;
|
|
i--;
|
|
}
|
|
|
|
if (i != 0 || *pe == '\0') {
|
|
blkfree(nv);
|
|
return (-RBRC);
|
|
}
|
|
|
|
for (i = 0, pl = pm = p; pm <= pe; pm++)
|
|
switch (*pm) {
|
|
case LBRK:
|
|
for (++pm; *pm != RBRK && *pm != EOS; pm++)
|
|
continue;
|
|
if (*pm == EOS) {
|
|
*vl = NULL;
|
|
blkfree(nv);
|
|
return (-RBRK);
|
|
}
|
|
break;
|
|
case LBRC:
|
|
i++;
|
|
break;
|
|
case RBRC:
|
|
if (i) {
|
|
i--;
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case ',':
|
|
if (i && *pm == ',')
|
|
break;
|
|
else {
|
|
Char savec = *pm;
|
|
|
|
*pm = EOS;
|
|
(void)Strcpy(lm, pl);
|
|
(void)Strcat(gbuf, pe + 1);
|
|
*pm = savec;
|
|
*vl++ = Strsave(gbuf);
|
|
len++;
|
|
pl = pm + 1;
|
|
if (vl == &nv[size]) {
|
|
size += GLOBSPACE;
|
|
nv = (Char **)xrealloc((ptr_t) nv,
|
|
(size_t)size * sizeof(Char *));
|
|
vl = &nv[size - GLOBSPACE];
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
*vl = NULL;
|
|
*bl = nv;
|
|
return (len);
|
|
}
|
|
|
|
static void
|
|
expbrace(Char ***nvp, Char ***elp, size_t size)
|
|
{
|
|
Char **ex, **nv, *s, **vl;
|
|
|
|
vl = nv = *nvp;
|
|
if (elp != NULL)
|
|
ex = *elp;
|
|
else
|
|
for (ex = vl; *ex; ex++)
|
|
continue;
|
|
|
|
for (s = *vl; s; s = *++vl) {
|
|
Char *b, **bp, **vp;
|
|
|
|
/* leave {} untouched for find */
|
|
if (s[0] == '{' && (s[1] == '\0' || (s[1] == '}' && s[2] == '\0')))
|
|
continue;
|
|
if ((b = Strchr(s, '{')) != NULL) {
|
|
Char **bl;
|
|
int len;
|
|
|
|
if ((len = globbrace(s, b, &bl)) < 0) {
|
|
xfree((ptr_t)nv);
|
|
stderror(ERR_MISSING, -len);
|
|
}
|
|
xfree((ptr_t) s);
|
|
if (len == 1) {
|
|
*vl-- = *bl;
|
|
xfree((ptr_t) bl);
|
|
continue;
|
|
}
|
|
len = blklen(bl);
|
|
if (&ex[len] >= &nv[size]) {
|
|
ptrdiff_t l, e;
|
|
|
|
l = &ex[len] - &nv[size];
|
|
size += (size_t)(GLOBSPACE > l ? GLOBSPACE : l);
|
|
l = vl - nv;
|
|
e = ex - nv;
|
|
nv = (Char **)xrealloc((ptr_t)nv,
|
|
(size_t)size * sizeof(Char *));
|
|
vl = nv + l;
|
|
ex = nv + e;
|
|
}
|
|
vp = vl--;
|
|
*vp = *bl;
|
|
len--;
|
|
for (bp = ex; bp != vp; bp--)
|
|
bp[len] = *bp;
|
|
ex += len;
|
|
vp++;
|
|
for (bp = bl + 1; *bp; *vp++ = *bp++)
|
|
continue;
|
|
xfree((ptr_t)bl);
|
|
}
|
|
|
|
}
|
|
if (elp != NULL)
|
|
*elp = ex;
|
|
*nvp = nv;
|
|
}
|
|
|
|
static Char **
|
|
globexpand(Char **v)
|
|
{
|
|
Char **ex, **nv, *s, **vl;
|
|
size_t size;
|
|
|
|
size = GLOBSPACE;
|
|
nv = vl = xmalloc(sizeof(Char *) * size);
|
|
*vl = NULL;
|
|
|
|
/*
|
|
* Step 1: expand backquotes.
|
|
*/
|
|
while ((s = *v++) != NULL) {
|
|
if (Strchr(s, '`')) {
|
|
int i;
|
|
|
|
(void) dobackp(s, 0);
|
|
for (i = 0; i < pargc; i++) {
|
|
*vl++ = pargv[i];
|
|
if (vl == &nv[size]) {
|
|
size += GLOBSPACE;
|
|
nv = (Char **)xrealloc((ptr_t) nv,
|
|
(size_t)size * sizeof(Char *));
|
|
vl = &nv[size - GLOBSPACE];
|
|
}
|
|
}
|
|
xfree((ptr_t)pargv);
|
|
pargv = NULL;
|
|
}
|
|
else {
|
|
*vl++ = Strsave(s);
|
|
if (vl == &nv[size]) {
|
|
size += GLOBSPACE;
|
|
nv = (Char **)xrealloc((ptr_t)nv,
|
|
size * sizeof(Char *));
|
|
vl = &nv[size - GLOBSPACE];
|
|
}
|
|
}
|
|
}
|
|
*vl = NULL;
|
|
|
|
if (noglob)
|
|
return (nv);
|
|
|
|
/*
|
|
* Step 2: expand braces
|
|
*/
|
|
ex = vl;
|
|
expbrace(&nv, &ex, size);
|
|
|
|
/*
|
|
* Step 3: expand ~
|
|
*/
|
|
vl = nv;
|
|
for (s = *vl; s; s = *++vl)
|
|
if (*s == '~')
|
|
*vl = globtilde(nv, s);
|
|
vl = nv;
|
|
return (vl);
|
|
}
|
|
|
|
static Char *
|
|
handleone(Char *str, Char **vl, int action)
|
|
{
|
|
Char *cp, **vlp;
|
|
|
|
vlp = vl;
|
|
switch (action) {
|
|
case G_ERROR:
|
|
setname(vis_str(str));
|
|
blkfree(vl);
|
|
stderror(ERR_NAME | ERR_AMBIG);
|
|
/* NOTREACHED */
|
|
case G_APPEND:
|
|
trim(vlp);
|
|
str = Strsave(*vlp++);
|
|
do {
|
|
cp = Strspl(str, STRspace);
|
|
xfree((ptr_t)str);
|
|
str = Strspl(cp, *vlp);
|
|
xfree((ptr_t)cp);
|
|
}
|
|
while (*++vlp);
|
|
blkfree(vl);
|
|
break;
|
|
case G_IGNORE:
|
|
str = Strsave(strip(*vlp));
|
|
blkfree(vl);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (str);
|
|
}
|
|
|
|
static Char **
|
|
libglob(Char **vl)
|
|
{
|
|
glob_t globv;
|
|
char *ptr;
|
|
int gflgs, magic, match, nonomatch;
|
|
|
|
gflgs = GLOB_NOMAGIC;
|
|
magic = 0;
|
|
match = 0;
|
|
nonomatch = adrof(STRnonomatch) != 0;
|
|
|
|
if (!vl || !vl[0])
|
|
return (vl);
|
|
|
|
globv.gl_offs = 0;
|
|
globv.gl_pathv = 0;
|
|
globv.gl_pathc = 0;
|
|
|
|
if (nonomatch)
|
|
gflgs |= GLOB_NOCHECK;
|
|
|
|
do {
|
|
ptr = short2qstr(*vl);
|
|
switch (glob(ptr, gflgs, 0, &globv)) {
|
|
case GLOB_ABORTED:
|
|
setname(vis_str(*vl));
|
|
stderror(ERR_NAME | ERR_GLOB);
|
|
/* NOTREACHED */
|
|
case GLOB_NOSPACE:
|
|
stderror(ERR_NOMEM);
|
|
/* NOTREACHED */
|
|
default:
|
|
break;
|
|
}
|
|
if (globv.gl_flags & GLOB_MAGCHAR) {
|
|
match |= (globv.gl_matchc != 0);
|
|
magic = 1;
|
|
}
|
|
gflgs |= GLOB_APPEND;
|
|
}
|
|
while (*++vl);
|
|
vl = (globv.gl_pathc == 0 || (magic && !match && !nonomatch)) ?
|
|
NULL : blk2short(globv.gl_pathv);
|
|
globfree(&globv);
|
|
return (vl);
|
|
}
|
|
|
|
Char *
|
|
globone(Char *str, int action)
|
|
{
|
|
Char *v[2], **vl, **vo;
|
|
int gflg;
|
|
|
|
noglob = adrof(STRnoglob) != 0;
|
|
gflag = 0;
|
|
v[0] = str;
|
|
v[1] = 0;
|
|
tglob(v);
|
|
gflg = gflag;
|
|
if (gflg == G_NONE)
|
|
return (strip(Strsave(str)));
|
|
|
|
if (gflg & G_CSH) {
|
|
/*
|
|
* Expand back-quote, tilde and brace
|
|
*/
|
|
vo = globexpand(v);
|
|
if (noglob || (gflg & G_GLOB) == 0) {
|
|
if (vo[0] == NULL) {
|
|
xfree((ptr_t)vo);
|
|
return (Strsave(STRNULL));
|
|
}
|
|
if (vo[1] != NULL)
|
|
return (handleone(str, vo, action));
|
|
else {
|
|
str = strip(vo[0]);
|
|
xfree((ptr_t) vo);
|
|
return (str);
|
|
}
|
|
}
|
|
}
|
|
else if (noglob || (gflg & G_GLOB) == 0)
|
|
return (strip(Strsave(str)));
|
|
else
|
|
vo = v;
|
|
|
|
vl = libglob(vo);
|
|
if ((gflg & G_CSH) && vl != vo)
|
|
blkfree(vo);
|
|
if (vl == NULL) {
|
|
setname(vis_str(str));
|
|
stderror(ERR_NAME | ERR_NOMATCH);
|
|
}
|
|
if (vl[0] == NULL) {
|
|
xfree((ptr_t)vl);
|
|
return (Strsave(STRNULL));
|
|
}
|
|
if (vl[1] != NULL)
|
|
return (handleone(str, vl, action));
|
|
else {
|
|
str = strip(*vl);
|
|
xfree((ptr_t)vl);
|
|
return (str);
|
|
}
|
|
}
|
|
|
|
Char **
|
|
globall(Char **v)
|
|
{
|
|
Char **vl, **vo;
|
|
int gflg;
|
|
|
|
gflg = gflag;
|
|
if (!v || !v[0]) {
|
|
gargv = saveblk(v);
|
|
gargc = blklen(gargv);
|
|
return (gargv);
|
|
}
|
|
|
|
noglob = adrof(STRnoglob) != 0;
|
|
|
|
if (gflg & G_CSH)
|
|
/*
|
|
* Expand back-quote, tilde and brace
|
|
*/
|
|
vl = vo = globexpand(v);
|
|
else
|
|
vl = vo = saveblk(v);
|
|
|
|
if (!noglob && (gflg & G_GLOB)) {
|
|
vl = libglob(vo);
|
|
if ((gflg & G_CSH) && vl != vo)
|
|
blkfree(vo);
|
|
}
|
|
else
|
|
trim(vl);
|
|
|
|
gargc = vl ? blklen(vl) : 0;
|
|
return (gargv = vl);
|
|
}
|
|
|
|
void
|
|
ginit(void)
|
|
{
|
|
gargsiz = GLOBSPACE;
|
|
gargv = xmalloc(sizeof(Char *) * (size_t)gargsiz);
|
|
gargv[0] = 0;
|
|
gargc = 0;
|
|
}
|
|
|
|
void
|
|
rscan(Char **t, void (*f)(int))
|
|
{
|
|
Char *p;
|
|
|
|
while ((p = *t++) != NULL)
|
|
while (*p)
|
|
(*f) (*p++);
|
|
}
|
|
|
|
void
|
|
trim(Char **t)
|
|
{
|
|
Char *p;
|
|
|
|
while ((p = *t++) != NULL)
|
|
while (*p)
|
|
*p++ &= TRIM;
|
|
}
|
|
|
|
void
|
|
tglob(Char **t)
|
|
{
|
|
Char *p, c;
|
|
|
|
while ((p = *t++) != NULL) {
|
|
if (*p == '~' || *p == '=')
|
|
gflag |= G_CSH;
|
|
else if (*p == '{' &&
|
|
(p[1] == '\0' || (p[1] == '}' && p[2] == '\0')))
|
|
continue;
|
|
while ((c = *p++) != '\0') {
|
|
/*
|
|
* eat everything inside the matching backquotes
|
|
*/
|
|
if (c == '`') {
|
|
gflag |= G_CSH;
|
|
while (*p && *p != '`')
|
|
if (*p++ == '\\') {
|
|
if (*p) /* Quoted chars */
|
|
p++;
|
|
else
|
|
break;
|
|
}
|
|
if (*p) /* The matching ` */
|
|
p++;
|
|
else
|
|
break;
|
|
}
|
|
else if (c == '{')
|
|
gflag |= G_CSH;
|
|
else if (isglob(c))
|
|
gflag |= G_GLOB;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Command substitute cp. If literal, then this is a substitution from a
|
|
* << redirection, and so we should not crunch blanks and tabs, separating
|
|
* words only at newlines.
|
|
*/
|
|
Char **
|
|
dobackp(Char *cp, int literal)
|
|
{
|
|
Char word[MAXPATHLEN], *ep, *lp, *rp;
|
|
|
|
if (pargv) {
|
|
#ifdef notdef
|
|
abort();
|
|
#endif
|
|
blkfree(pargv);
|
|
}
|
|
pargsiz = GLOBSPACE;
|
|
pargv = xmalloc(sizeof(Char *) * (size_t)pargsiz);
|
|
pargv[0] = NULL;
|
|
pargcp = pargs = word;
|
|
pargc = 0;
|
|
pnleft = MAXPATHLEN - 4;
|
|
for (;;) {
|
|
for (lp = cp; *lp != '`'; lp++) {
|
|
if (*lp == 0) {
|
|
if (pargcp != pargs)
|
|
pword();
|
|
return (pargv);
|
|
}
|
|
psave(*lp);
|
|
}
|
|
lp++;
|
|
for (rp = lp; *rp && *rp != '`'; rp++)
|
|
if (*rp == '\\') {
|
|
rp++;
|
|
if (!*rp)
|
|
goto oops;
|
|
}
|
|
if (!*rp) {
|
|
oops:
|
|
stderror(ERR_UNMATCHED, '`');
|
|
}
|
|
ep = Strsave(lp);
|
|
ep[rp - lp] = 0;
|
|
backeval(ep, literal);
|
|
cp = rp + 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
backeval(Char *cp, int literal)
|
|
{
|
|
struct command faket;
|
|
char tibuf[BUFSIZE];
|
|
Char ibuf[BUFSIZE], *fakecom[2], *ip;
|
|
int pvec[2], c, quoted;
|
|
ssize_t icnt;
|
|
int hadnl;
|
|
|
|
hadnl = 0;
|
|
icnt = 0;
|
|
quoted = (literal || (cp[0] & QUOTE)) ? QUOTE : 0;
|
|
faket.t_dtyp = NODE_COMMAND;
|
|
faket.t_dflg = 0;
|
|
faket.t_dlef = 0;
|
|
faket.t_drit = 0;
|
|
faket.t_dspr = 0;
|
|
faket.t_dcom = fakecom;
|
|
fakecom[0] = STRfakecom1;
|
|
fakecom[1] = 0;
|
|
|
|
/*
|
|
* We do the psave job to temporarily change the current job so that the
|
|
* following fork is considered a separate job. This is so that when
|
|
* backquotes are used in a builtin function that calls glob the "current
|
|
* job" is not corrupted. We only need one level of pushed jobs as long as
|
|
* we are sure to fork here.
|
|
*/
|
|
psavejob();
|
|
|
|
/*
|
|
* It would be nicer if we could integrate this redirection more with the
|
|
* routines in sh.sem.c by doing a fake execute on a builtin function that
|
|
* was piped out.
|
|
*/
|
|
mypipe(pvec);
|
|
if (pfork(&faket, -1) == 0) {
|
|
struct wordent fparaml;
|
|
struct command *t;
|
|
|
|
(void)close(pvec[0]);
|
|
(void)dmove(pvec[1], 1);
|
|
(void)dmove(SHERR, 2);
|
|
initdesc();
|
|
/*
|
|
* Bugfix for nested backquotes by Michael Greim <greim@sbsvax.UUCP>,
|
|
* posted to comp.bugs.4bsd 12 Sep. 1989.
|
|
*/
|
|
if (pargv) /* mg, 21.dec.88 */
|
|
blkfree(pargv), pargv = 0, pargsiz = 0;
|
|
/* mg, 21.dec.88 */
|
|
arginp = cp;
|
|
for (arginp = cp; *cp; cp++) {
|
|
*cp &= TRIM;
|
|
if (*cp == '\n' || *cp == '\r')
|
|
*cp = ';';
|
|
}
|
|
|
|
/*
|
|
* In the child ``forget'' everything about current aliases or
|
|
* eval vectors.
|
|
*/
|
|
alvec = NULL;
|
|
evalvec = NULL;
|
|
alvecp = NULL;
|
|
evalp = NULL;
|
|
(void) lex(&fparaml);
|
|
if (seterr)
|
|
stderror(ERR_OLD);
|
|
alias(&fparaml);
|
|
t = syntax(fparaml.next, &fparaml, 0);
|
|
if (seterr)
|
|
stderror(ERR_OLD);
|
|
if (t)
|
|
t->t_dflg |= F_NOFORK;
|
|
(void)signal(SIGTSTP, SIG_IGN);
|
|
(void)signal(SIGTTIN, SIG_IGN);
|
|
(void)signal(SIGTTOU, SIG_IGN);
|
|
execute(t, -1, NULL, NULL);
|
|
exitstat();
|
|
}
|
|
xfree((ptr_t)cp);
|
|
(void)close(pvec[1]);
|
|
c = 0;
|
|
ip = NULL;
|
|
do {
|
|
int cnt;
|
|
|
|
cnt = 0;
|
|
|
|
for (;;) {
|
|
if (icnt == 0) {
|
|
int i;
|
|
|
|
ip = ibuf;
|
|
do
|
|
icnt = read(pvec[0], tibuf, BUFSIZE);
|
|
while (icnt == -1 && errno == EINTR);
|
|
if (icnt <= 0) {
|
|
c = -1;
|
|
break;
|
|
}
|
|
for (i = 0; i < icnt; i++)
|
|
ip[i] = (unsigned char) tibuf[i];
|
|
}
|
|
if (hadnl)
|
|
break;
|
|
--icnt;
|
|
c = (*ip++ & TRIM);
|
|
if (c == 0)
|
|
break;
|
|
if (c == '\n') {
|
|
/*
|
|
* Continue around the loop one more time, so that we can eat
|
|
* the last newline without terminating this word.
|
|
*/
|
|
hadnl = 1;
|
|
continue;
|
|
}
|
|
if (!quoted && (c == ' ' || c == '\t'))
|
|
break;
|
|
cnt++;
|
|
psave(c | quoted);
|
|
}
|
|
/*
|
|
* Unless at end-of-file, we will form a new word here if there were
|
|
* characters in the word, or in any case when we take text literally.
|
|
* If we didn't make empty words here when literal was set then we
|
|
* would lose blank lines.
|
|
*/
|
|
if (c != -1 && (cnt || literal))
|
|
pword();
|
|
hadnl = 0;
|
|
} while (c >= 0);
|
|
(void)close(pvec[0]);
|
|
pwait();
|
|
prestjob();
|
|
}
|
|
|
|
static void
|
|
psave(int c)
|
|
{
|
|
if (--pnleft <= 0)
|
|
stderror(ERR_WTOOLONG);
|
|
*pargcp++ = (Char)c;
|
|
}
|
|
|
|
static void
|
|
pword(void)
|
|
{
|
|
psave(0);
|
|
if (pargc == pargsiz - 1) {
|
|
pargsiz += GLOBSPACE;
|
|
pargv = (Char **)xrealloc((ptr_t)pargv,
|
|
(size_t)pargsiz * sizeof(Char *));
|
|
}
|
|
pargv[pargc++] = Strsave(pargs);
|
|
pargv[pargc] = NULL;
|
|
pargcp = pargs;
|
|
pnleft = MAXPATHLEN - 4;
|
|
}
|
|
|
|
int
|
|
Gmatch(Char *string, Char *pattern)
|
|
{
|
|
Char **blk, **p;
|
|
int gpol, gres;
|
|
|
|
gpol = 1;
|
|
gres = 0;
|
|
|
|
if (*pattern == '^') {
|
|
gpol = 0;
|
|
pattern++;
|
|
}
|
|
|
|
blk = xmalloc(GLOBSPACE * sizeof(Char *));
|
|
blk[0] = Strsave(pattern);
|
|
blk[1] = NULL;
|
|
|
|
expbrace(&blk, NULL, GLOBSPACE);
|
|
|
|
for (p = blk; *p; p++)
|
|
gres |= pmatch(string, *p);
|
|
|
|
blkfree(blk);
|
|
return(gres == gpol);
|
|
}
|
|
|
|
static int
|
|
pmatch(Char *string, Char *pattern)
|
|
{
|
|
int match, negate_range;
|
|
Char patternc, rangec, stringc;
|
|
|
|
for (;; ++string) {
|
|
stringc = *string & TRIM;
|
|
patternc = *pattern++;
|
|
switch (patternc) {
|
|
case 0:
|
|
return (stringc == 0);
|
|
case '?':
|
|
if (stringc == 0)
|
|
return (0);
|
|
break;
|
|
case '*':
|
|
if (!*pattern)
|
|
return (1);
|
|
while (*string)
|
|
if (Gmatch(string++, pattern))
|
|
return (1);
|
|
return (0);
|
|
case '[':
|
|
match = 0;
|
|
if ((negate_range = (*pattern == '^')) != 0)
|
|
pattern++;
|
|
while ((rangec = *pattern++) != '\0') {
|
|
if (rangec == ']')
|
|
break;
|
|
if (match)
|
|
continue;
|
|
if (rangec == '-' && *(pattern-2) != '[' && *pattern != ']') {
|
|
match = (stringc <= (*pattern & TRIM) &&
|
|
(*(pattern-2) & TRIM) <= stringc);
|
|
pattern++;
|
|
}
|
|
else
|
|
match = (stringc == (rangec & TRIM));
|
|
}
|
|
if (rangec == 0)
|
|
stderror(ERR_NAME | ERR_MISSING, ']');
|
|
if (match == negate_range)
|
|
return (0);
|
|
break;
|
|
default:
|
|
if ((patternc & TRIM) != stringc)
|
|
return (0);
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
Gcat(Char *s1, Char *s2)
|
|
{
|
|
Char *p, *q;
|
|
ptrdiff_t n;
|
|
|
|
for (p = s1; *p++;)
|
|
continue;
|
|
for (q = s2; *q++;)
|
|
continue;
|
|
n = (p - s1) + (q - s2) - 1;
|
|
if (++gargc >= gargsiz) {
|
|
gargsiz += GLOBSPACE;
|
|
gargv = (Char **)xrealloc((ptr_t)gargv,
|
|
(size_t)gargsiz * sizeof(Char *));
|
|
}
|
|
gargv[gargc] = 0;
|
|
p = gargv[gargc - 1] = xmalloc((size_t)n * sizeof(Char));
|
|
for (q = s1; (*p++ = *q++) != '\0';)
|
|
continue;
|
|
for (p--, q = s2; (*p++ = *q++) != '\0';)
|
|
continue;
|
|
}
|
|
|
|
#ifdef FILEC
|
|
int
|
|
sortscmp(const ptr_t a, const ptr_t b)
|
|
{
|
|
#if defined(NLS) && !defined(NOSTRCOLL)
|
|
char buf[2048];
|
|
#endif
|
|
|
|
if (!a) /* check for NULL */
|
|
return (b ? 1 : 0);
|
|
if (!b)
|
|
return (-1);
|
|
|
|
if (!*(Char **)a) /* check for NULL */
|
|
return (*(Char **)b ? 1 : 0);
|
|
if (!*(Char **)b)
|
|
return (-1);
|
|
|
|
#if defined(NLS) && !defined(NOSTRCOLL)
|
|
(void)strcpy(buf, short2str(*(Char **)a));
|
|
return ((int)strcoll(buf, short2str(*(Char **)b)));
|
|
#else
|
|
return ((int)Strcmp(*(Char **)a, *(Char **)b));
|
|
#endif
|
|
}
|
|
#endif /* FILEC */
|