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fix x+=<<

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tg
2014-10-12 19:55:01 +00:00
parent 1971bb2ad4
commit 4afe543fa0
3 changed files with 29 additions and 8 deletions
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9
exec.c
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@@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.133 2014/10/03 17:32:11 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.134 2014/10/12 19:55:00 tg Exp $");
#ifndef MKSH_DEFAULT_EXECSHELL
#define MKSH_DEFAULT_EXECSHELL "/bin/sh"
@@ -94,11 +94,14 @@ execute(struct op * volatile t,
/* the variable assignment begins with a valid varname */
(ccp = skip_wdvarname(t->vars[0], true)) != t->vars[0] &&
/* and has no right-hand side (i.e. "varname=") */
ccp[0] == CHAR && ccp[1] == '=' && ccp[2] == EOS &&
ccp[0] == CHAR && ((ccp[1] == '=' && ccp[2] == EOS) ||
/* or "varname+=" */ (ccp[1] == '+' && ccp[2] == CHAR &&
ccp[3] == '=' && ccp[4] == EOS)) &&
/* plus we can have a here document content */
herein(t->ioact[0], &cp) == 0 && cp && *cp) {
char *sp = cp, *dp;
size_t n = ccp - t->vars[0] + 2, z;
size_t n = ccp - t->vars[0] + (ccp[1] == '+' ? 4 : 2);
size_t z;
/* drop redirection (will be garbage collected) */
t->ioact = NULL;