OS-4277 lx procfs /proc/{pid}/environ always empty [handle empty env …

…vector]
TritonDataCenter · May 7, 2015 · 42a9be3 · 42a9be3
1 parent 734281d
commit 42a9be3
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/usr/src/uts/common/fs/proc/prargv.c b/usr/src/uts/common/fs/proc/prargv.c
@@ -298,6 +298,14 @@ prreadenvv(proc_t *p, char *buf, size_t bufsz, size_t *slen)
 		if (tmp == NULL)
 			break;
 	}
+	if (cnt == 0) {
+		/* Return empty string. */
+		buf[0] = '\0';
+		*slen = 1;
+		mutex_enter(&p->p_lock);
+		VERIFY(p->p_proc_flag & P_PR_LOCK);
+		return (0);
+	}
 
 	/*
 	 * Allocate space to store env array.