diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/shell/ash.c b/shell/ash.c index 3604af4..5bb5935 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -2237,14 +2237,15 @@ bltinlookup(const char *name) * will go away. * Called with interrupts off. */ -static void +static struct var * setvareq(char *s, int flags) { struct var *vp, **vpp; vpp = hashvar(s); flags |= (VEXPORT & (((unsigned) (1 - aflag)) - 1)); - vp = *findvar(vpp, s); + vpp = findvar(vpp, s); + vp = *vpp; if (vp) { if ((vp->flags & (VREADONLY|VDYNAMIC)) == VREADONLY) { const char *n; @@ -2257,7 +2258,7 @@ setvareq(char *s, int flags) } if (flags & VNOSET) - return; + goto out; if (vp->var_func && !(flags & VNOFUNC)) vp->var_func(var_end(s)); @@ -2271,14 +2272,14 @@ setvareq(char *s, int flags) out_free: if ((flags & (VTEXTFIXED|VSTACK|VNOSAVE)) == VNOSAVE) free(s); - return; + goto out; } flags |= vp->flags & ~(VTEXTFIXED|VSTACK|VNOSAVE|VUNSET); } else { /* variable s is not found */ if (flags & VNOSET) - return; + goto out; if ((flags & (VEXPORT|VREADONLY|VSTRFIXED|VUNSET)) == VUNSET) goto out_free; vp = ckzalloc(sizeof(*vp)); @@ -2290,13 +2291,16 @@ setvareq(char *s, int flags) s = ckstrdup(s); vp->var_text = s; vp->flags = flags; + + out: + return vp; } /* * Set the value of a variable. The flags argument is ored with the * flags of the variable. If val is NULL, the variable is unset. */ -static void +static struct var * setvar(const char *name, const char *val, int flags) { const char *q; @@ -2304,6 +2308,7 @@ setvar(const char *name, const char *val, int flags) char *nameeq; size_t namelen; size_t vallen; + struct var *vp; q = endofname(name); p = strchrnul(q, '='); @@ -2325,8 +2330,10 @@ setvar(const char *name, const char *val, int flags) p = mempcpy(p, val, vallen); } *p = '\0'; - setvareq(nameeq, flags | VNOSAVE); + vp = setvareq(nameeq, flags | VNOSAVE); INT_ON; + + return vp; } static void FAST_FUNC @@ -9336,10 +9343,9 @@ mklocal(char *name) if (vp == NULL) { /* variable did not exist yet */ if (eq) - setvareq(name, VSTRFIXED); + vp = setvareq(name, VSTRFIXED); else - setvar(name, NULL, VSTRFIXED); - vp = *vpp; /* the new variable */ + vp = setvar(name, NULL, VSTRFIXED); lvp->flags = VUNSET; } else { lvp->text = vp->var_text; |