fix scanf %c conversion wrongly storing a terminating null byte

[musl] / src / stdio / vfscanf.c

diff --git a/src/stdio/vfscanf.c b/src/stdio/vfscanf.c
index 6bea6ad..bb92848 100644 (file)
--- a/src/stdio/vfscanf.c
+++ b/src/stdio/vfscanf.c
@@ -265,8 +265,10 @@ int vfscanf(FILE *restrict f, const char *restrict fmt, va_list ap)
                                if (size == SIZE_l) *(wchar_t **)dest = wcs;
                                else *(char **)dest = s;
                        }
-                       if (wcs) wcs[i] = 0;
-                       if (s) s[i] = 0;
+                       if (t != 'c') {
+                               if (wcs) wcs[i] = 0;
+                               if (s) s[i] = 0;
+                       }
                        break;
                case 'p':
                case 'X':