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catch missing variable names in typeset, to avoid confusing Hugues Moretto-Viry with bogus “read-only” messages

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tg 2013-03-30 15:39:26 +00:00
parent 5c2f250abc
commit 57e4c1a19f
1 changed files with 5 additions and 2 deletions
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7
var.c
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@ -27,7 +27,7 @@
#include <sys/sysctl.h> #include <sys/sysctl.h>
#endif #endif
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.166 2013/02/18 22:24:52 tg Exp $"); __RCSID("$MirOS: src/bin/mksh/var.c,v 1.167 2013/03/30 15:39:26 tg Exp $");
/*- /*-
* Variables * Variables
@ -708,6 +708,10 @@ typeset(const char *var, uint32_t set, uint32_t clr, int field, int base)
/* check for valid variable name, search for value */ /* check for valid variable name, search for value */
val = skip_varname(var, false); val = skip_varname(var, false);
if (val == var) {
/* no variable name given */
return (NULL);
}
if (*val == '[') { if (*val == '[') {
if (set_refflag != SRF_NOP) if (set_refflag != SRF_NOP)
errorf("%s: %s", var, errorf("%s: %s", var,
@ -742,7 +746,6 @@ typeset(const char *var, uint32_t set, uint32_t clr, int field, int base)
* must have a = when setting a variable by importing * must have a = when setting a variable by importing
* the original environment, otherwise be empty; we * the original environment, otherwise be empty; we
* also end up here when a variable name was invalid * also end up here when a variable name was invalid
* or none given
*/ */
return (NULL); return (NULL);
} else { } else {