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-rw-r--r--libc/gen/pw_scan.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/libc/gen/pw_scan.c b/libc/gen/pw_scan.c
index 09556a3..849effa 100644
--- a/libc/gen/pw_scan.c
+++ b/libc/gen/pw_scan.c
@@ -60,8 +60,12 @@ static const char rcsid[] =
* Some software assumes that IDs are short. We should emit warnings
* for id's which can not be stored in a short, but we are more liberal
* by default, warning for IDs greater than USHRT_MAX.
+ *
+ * If pw_big_ids_warning is anything other than -1 on entry to pw_scan()
+ * it will be set based on the existance of PW_SCAN_BIG_IDS in the
+ * environment.
*/
-int pw_big_ids_warning = 1;
+int pw_big_ids_warning = -1;
int
pw_scan(bp, pw)
@@ -72,6 +76,9 @@ pw_scan(bp, pw)
int root;
char *p, *sh;
+ if (pw_big_ids_warning == -1)
+ pw_big_ids_warning = getenv("PW_SCAN_BIG_IDS") == NULL ? 1 : 0;
+
pw->pw_fields = 0;
if (!(pw->pw_name = strsep(&bp, ":"))) /* login */
goto fmt;