[incubator-nuttx] 02/02: sched/env: Check for incoming parameter validity in unsetenv()

[pkarashchenko]

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pkarashchenko pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git

commit dc2b2dcb3f7f4561f880fbbbaa60fab90984ffa4
Author: Ville Juven <ville.ju...@unikie.com>
AuthorDate: Mon Jun 13 15:51:12 2022 +0300

    sched/env: Check for incoming parameter validity in unsetenv()
    
    Something the function did not do, check the incoming parameter is vlaid
---
 sched/environ/env_unsetenv.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sched/environ/env_unsetenv.c b/sched/environ/env_unsetenv.c
index be491474c4..62f9fd8a99 100644
--- a/sched/environ/env_unsetenv.c
+++ b/sched/environ/env_unsetenv.c
@@ -63,7 +63,15 @@ int unsetenv(FAR const char *name)
   FAR struct task_group_s *group = rtcb->group;
   int idx;
 
-  DEBUGASSERT(name && group);
+  DEBUGASSERT(group);
+
+  /* Check the incoming parameter */
+
+  if (name == NULL || *name == '\0' || strchr(name, '=') != NULL)
+    {
+      set_errno(EINVAL);
+      return ERROR;
+    }
 
   /* Check if the variable exists */