[incubator-nuttx-apps] branch master updated: fix issue with reading ipv6 routes. Handle space ahead of first line of route.

[xiaoxiang]

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


The following commit(s) were added to refs/heads/master by this push:
     new fd22b6372 fix issue with reading ipv6 routes.  Handle space ahead of 
first line of route.
fd22b6372 is described below

commit fd22b6372255e642617d9d95275df240e8d31fea
Author: mlondono74 <43219046+mlondon...@users.noreply.github.com>
AuthorDate: Thu Nov 17 15:34:08 2022 -0500

    fix issue with reading ipv6 routes.  Handle space ahead of first line of 
route.
---
 netutils/netlib/netlib_ipv6route.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/netutils/netlib/netlib_ipv6route.c 
b/netutils/netlib/netlib_ipv6route.c
index 59858b661..c35e26f4a 100644
--- a/netutils/netlib/netlib_ipv6route.c
+++ b/netutils/netlib/netlib_ipv6route.c
@@ -28,7 +28,7 @@
 #include <string.h>
 #include <assert.h>
 #include <errno.h>
-
+#include <ctype.h>
 #include <arpa/inet.h>
 
 #include "netutils/netlib.h"
@@ -110,6 +110,7 @@ ssize_t netlib_read_ipv6route(FILE *stream,
   char line[PROCFS_LINELEN];
   FAR char *addr;
   int ret;
+  int idx = 0;
 
   DEBUGASSERT(stream != NULL && route != NULL);
 
@@ -131,9 +132,14 @@ ssize_t netlib_read_ipv6route(FILE *stream,
       return 0;
     }
 
-  /* The first line of the group should consist of a number index */
+  /* First non-space char of 1st line should be a number index */
+
+  while (isspace(line[idx]))
+    {
+      idx++;
+    }
 
-  if (line[0] < '0' || line[0] > 9)
+  if (line[idx] < '0' || line[idx] > '9')
     {
       return -EINVAL;
     }