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tweak some iop/conservative_fds-related things I picked up while thinking lksh

This commit is contained in:
tg 2015-10-09 19:29:50 +00:00
parent 22fff17047
commit fc48729336
6 changed files with 28 additions and 24 deletions
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6
eval.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.173 2015/10/09 17:48:48 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.174 2015/10/09 19:29:47 tg Exp $");
/*
* string expansion
@ -1334,8 +1334,8 @@ comsub(Expand *xp, const char *cp, int fn MKSH_A_UNUSED)
if ((io->ioflag & IOTYPE) != IOREAD)
errorf("%s: %s", "funny $() command",
snptreef(NULL, 32, "%R", io));
shf = shf_open(name = evalstr(io->name, DOTILDE), O_RDONLY, 0,
SHF_MAPHI|SHF_CLEXEC);
shf = shf_open(name = evalstr(io->ioname, DOTILDE), O_RDONLY,
0, SHF_MAPHI | SHF_CLEXEC);
if (shf == NULL)
warningf(!Flag(FTALKING), "%s: %s %s: %s", name,
"can't open", "$(<...) input", cstrerror(errno));

6
exec.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.166 2015/10/09 17:48:49 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.167 2015/10/09 19:29:48 tg Exp $");
#ifndef MKSH_DEFAULT_EXECSHELL
#define MKSH_DEFAULT_EXECSHELL MKSH_UNIXROOT "/bin/sh"
@ -1369,7 +1369,7 @@ static int
iosetup(struct ioword *iop, struct tbl *tp)
{
int u = -1;
char *cp = iop->name;
char *cp = iop->ioname;
int iotype = iop->ioflag & IOTYPE;
bool do_open = true, do_close = false;
int flags = 0;
@ -1381,7 +1381,7 @@ iosetup(struct ioword *iop, struct tbl *tp)
/* Used for tracing and error messages to print expanded cp */
iotmp = *iop;
iotmp.name = (iotype == IOHERE) ? NULL : cp;
iotmp.ioname = (iotype == IOHERE) ? NULL : cp;
iotmp.ioflag |= IONAMEXP;
if (Flag(FXTRACE)) {

4
lex.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.211 2015/10/09 17:48:51 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.212 2015/10/09 19:29:48 tg Exp $");
/*
* states while lexing word
@ -951,7 +951,7 @@ yylex(int cf)
ungetsc(c2);
}
iop->name = NULL;
iop->ioname = NULL;
iop->delim = NULL;
iop->heredoc = NULL;
/* free word */

4
sh.h
View File

@ -172,7 +172,7 @@
#endif
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.747 2015/10/09 17:48:52 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.748 2015/10/09 19:29:49 tg Exp $");
#endif
#define MKSH_VERSION "R51 2015/10/05"
@ -1398,7 +1398,7 @@ struct op {
* IO redirection
*/
struct ioword {
char *name; /* filename (unused if heredoc) */
char *ioname; /* filename (unused if heredoc) */
char *delim; /* delimiter for <<, <<- */
char *heredoc; /* content of heredoc */
unsigned short ioflag; /* action (below) */

10
syn.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.105 2015/10/09 17:48:53 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.106 2015/10/09 19:29:50 tg Exp $");
struct nesting_state {
int start_token; /* token than began nesting (eg, FOR) */
@ -210,18 +210,22 @@ synio(int cf)
yyerror("too many %ss\n", "<<");
*herep++ = iop;
} else
iop->name = yylval.cp;
iop->ioname = yylval.cp;
if (iop->ioflag & IOBASH) {
char *cp;
nextiop = alloc(sizeof(*iop), ATEMP);
nextiop->name = cp = alloc(5, ATEMP);
#ifdef MKSH_CONSERVATIVE_FDS
nextiop->ioname = cp = alloc(3, ATEMP);
#else
nextiop->ioname = cp = alloc(5, ATEMP);
if (iop->unit > 9) {
*cp++ = CHAR;
*cp++ = digits_lc[iop->unit / 10];
}
#endif
*cp++ = CHAR;
*cp++ = digits_lc[iop->unit % 10];
*cp = EOS;

22
tree.c
View File

@ -3,7 +3,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012, 2013, 2015
* mirabilos <tg@mirbsd.org>
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
* are retained or reproduced in an accompanying document, permission
@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.77 2015/09/06 19:47:01 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.78 2015/10/09 19:29:50 tg Exp $");
#define INDENT 8
@ -286,11 +286,11 @@ pioact(struct shf *shf, struct ioword *iop)
if (type == IOHERE) {
if (iop->delim && !(iop->ioflag & IONDELIM))
wdvarput(shf, iop->delim, 0, WDS_TPUTS);
} else if (iop->name) {
} else if (iop->ioname) {
if (flag & IONAMEXP)
print_value_quoted(shf, iop->name);
print_value_quoted(shf, iop->ioname);
else
wdvarput(shf, iop->name, 0, WDS_TPUTS);
wdvarput(shf, iop->ioname, 0, WDS_TPUTS);
}
shf_putc(' ', shf);
prevent_semicolon = false;
@ -672,8 +672,8 @@ iocopy(struct ioword **iow, Area *ap)
q = alloc(sizeof(struct ioword), ap);
ior[i] = q;
*q = *p;
if (p->name != NULL)
q->name = wdcopy(p->name, ap);
if (p->ioname != NULL)
q->ioname = wdcopy(p->ioname, ap);
if (p->delim != NULL)
q->delim = wdcopy(p->delim, ap);
if (p->heredoc != NULL)
@ -730,7 +730,7 @@ iofree(struct ioword **iow, Area *ap)
iop = iow;
while ((p = *iop++) != NULL) {
afree(p->name, ap);
afree(p->ioname, ap);
afree(p->delim, ap);
afree(p->heredoc, ap);
afree(p, ap);
@ -936,13 +936,13 @@ dumpioact(struct shf *shf, struct op *t)
dumpwdvar(shf, iop->delim);
shf_putc('>', shf);
}
if (iop->name) {
if (iop->ioname) {
if (iop->ioflag & IONAMEXP) {
shf_puts(",name=", shf);
print_value_quoted(shf, iop->name);
print_value_quoted(shf, iop->ioname);
} else {
shf_puts(",name<", shf);
dumpwdvar(shf, iop->name);
dumpwdvar(shf, iop->ioname);
shf_putc('>', shf);
}
}