static struct varinit *
findvar(struct varinit *vp, const char *name)
{
for (; vp; vp = (struct varinit *)get_addr((vp->next_offset))) {
if (varequal((char *)get_addr(vp->name_offset), name)) {
break;
}
}
return vp;
}
void
setvareq(char *s, int flags)
{
struct var *vp, **vpp;
int len;
if (aflag)
flags |= VEXPORT;
vpp = hashvar(s);
for (vp = *vpp ; vp ; vp = vp->next) {
if (varequal(s, vp->text)) {
if (vp->flags & VREADONLY) {
len = strchr(s, '=') - s;
error("%.*s: is read only", len, s);
}
INTOFF;
if (vp->func && (flags & VNOFUNC) == 0)
(*vp->func)(strchr(s, '=') + 1);
if ((vp->flags & (VTEXTFIXED|VSTACK)) == 0)
ckfree(vp->text);
vp->flags &= ~(VTEXTFIXED|VSTACK|VUNSET);
vp->flags |= flags;
vp->text = s;
/*
* We could roll this to a function, to handle it as
* a regular variable function callback, but why bother?
*/
if (vp == &vmpath || (vp == &vmail && ! mpathset()))
chkmail(1);
if ((vp->flags & VEXPORT) && localevar(s)) {
putenv(s);
(void) setlocale(LC_ALL, "");
}
INTON;
return;
}
}
/* not found */
vp = ckmalloc(sizeof (*vp));
vp->flags = flags;
vp->text = s;
vp->next = *vpp;
vp->func = NULL;
INTOFF;
*vpp = vp;
if ((vp->flags & VEXPORT) && localevar(s)) {
putenv(s);
(void) setlocale(LC_ALL, "");
}
INTON;
}
char *
bltinlookup(char *name, int doall)
{
struct strlist *sp;
struct var *v;
for (sp = cmdenviron ; sp ; sp = sp->next) {
if (varequal(sp->text, name))
return strchr(sp->text, '=') + 1;
}
for (v = *hashvar(name) ; v ; v = v->next) {
if (varequal(v->text, name)) {
if ((v->flags & VUNSET)
|| (!doall && (v->flags & VEXPORT) == 0))
return NULL;
return strchr(v->text, '=') + 1;
}
}
return NULL;
}
STATIC int
localevar(char *s)
{
static char *lnames[7] = {
"ALL", "COLLATE", "CTYPE", "MONETARY",
"NUMERIC", "TIME", NULL
};
char **ss;
if (*s != 'L')
return 0;
if (varequal(s + 1, "ANG"))
return 1;
if (strncmp(s + 1, "C_", 2) != 0)
return 0;
for (ss = lnames; *ss ; ss++)
if (varequal(s + 3, *ss))
return 1;
return 0;
}
char *
lookupvar(char *name)
{
struct var *v;
for (v = *hashvar(name) ; v ; v = v->next) {
if (varequal(v->text, name)) {
if (v->flags & VUNSET)
return NULL;
return strchr(v->text, '=') + 1;
}
}
return NULL;
}