[PATCH i-g-t 05/12] lib/igt_drm_fdinfo: Detect invalid drm-client-id

[Umesh Nerlige Ramappa]

On Fri, Apr 05, 2024 at 01:00:49AM -0500, Lucas De Marchi wrote:
>Use strtol() for string to long conversion which allows us to detect if
>there was an invalid number. It also has the advantage that it already
>ignores leading spaces.
>
>Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
>---
> lib/igt_drm_fdinfo.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
>diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c
>index de1962efa..8eb5e5eed 100644
>--- a/lib/igt_drm_fdinfo.c
>+++ b/lib/igt_drm_fdinfo.c
>@@ -216,6 +216,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
> 		uint64_t val = 0;
> 		size_t keylen;
> 		const char *v;
>+		char *end_ptr;
> 		int idx;
>
> 		_buf = NULL;
>@@ -229,11 +230,9 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
> 			}
> 		}  else if (strstartswith(l, "drm-client-id:", &keylen)) {
> 			v = l + keylen;
>-			v = ignore_space(v);
>-			if (*v) {
>-				info->id = atol(v);
>+			info->id = strtol(v, &end_ptr, 10);
>+			if (end_ptr != v)
> 				good++;
>-			}

Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>

> 		} else if (strstartswith(l, "drm-pdev:", &keylen)) {
> 			v = l + keylen;
> 			v = ignore_space(v);
>-- 
>2.44.0
>