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-rw-r--r--sysif.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sysif.c b/sysif.c
index 286dcca6..ee219ff3 100644
--- a/sysif.c
+++ b/sysif.c
@@ -671,11 +671,13 @@ static val chmod_wrap(val target, val mode)
case chm_add: cmode |= bits; break;
case chm_sub: cmode &= ~bits; break;
case chm_set:
- cmode &= ~mask;
- if (implicit_all || (who & CHM_O) != 0)
- cmode &= ~S_ISVTX; /* GNU Coreutils 8.28 chmod behavior */
- if (!S_ISDIR(cmode))
- cmode &= ~(S_ISUID | S_ISGID);
+ if (cs == chm_perm) {
+ cmode &= ~mask;
+ if (implicit_all || (who & CHM_O) != 0)
+ cmode &= ~S_ISVTX; /* GNU Coreutils 8.28 chmod behavior */
+ if (!S_ISDIR(cmode))
+ cmode &= ~(S_ISUID | S_ISGID);
+ }
cmode |= bits;
break;
}