pal: Strerror_s(3) cannot return ERANGE in case of the short buffer.

Such the condition seems not treated as a runtime constraint violation. The best solution is hence to guarantee that the zero status means that a NUL-terminated string is returned. Signed-off-by: Seigo Tanimura <[email protected]>
fluent · Jan 18, 2024 · b09f688 · b09f688
1 parent 0429d82
commit b09f688
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/src/flb_pal.c b/src/flb_pal.c
@@ -63,12 +63,7 @@ int flb_strerror_r(int errnum, char *buf, size_t buflen)
     return strerror_r(errnum, buf, buflen);
 #endif
 #elif defined(FLB_HAVE_STRERROR_S)
-    int ret;
-
-    ret = (int) strerror_s(buf, (rsize_t)buflen, (errno_t)errnum);
-    if (0 != ret) {
-        ret = ERANGE;
-    }
+    return (int) strerror_s(buf, (rsize_t)buflen, (errno_t)errnum);
 #endif
 }
 #endif