sleep: fix fractional arguments in non-POSIX locale

function                                             old     new   delta
sleep_main                                           390     379     -11

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

1 files changed, 11 insertions, 7 deletions

diff --git a/coreutils/sleep.c b/coreutils/sleep.c
index 12798d9a7..9acb2d15f 100644
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -49,6 +49,9 @@ int sleep_main(int argc UNUSED_PARAM, char **argv)
 
 #if ENABLE_FEATURE_FLOAT_SLEEP
 
+# if ENABLE_LOCALE_SUPPORT
+        setlocale (LC_NUMERIC, "C");
+# endif
         duration = 0;
         do {
                 char *arg = *argv;
@@ -62,14 +65,15 @@ int sleep_main(int argc UNUSED_PARAM, char **argv)
                         d = strtod(arg, &pp);
                         if (errno || *pp)
                                 bb_show_usage();
-                        arg[len] = sv;
-                        len--;
-                        sv = arg[len];
-                        arg[len] = '1';
-                        duration += d * xatoul_sfx(&arg[len], sfx);
-                        arg[len] = sv;
-                } else
+                        arg += len;
+                        *arg-- = sv;
+                        sv = *arg;
+                        *arg = '1';
+                        duration += d * xatoul_sfx(arg, sfx);
+                        *arg = sv;
+                } else {
                         duration += xatoul_sfx(arg, sfx);
+                }
         } while (*++argv);
 
         ts.tv_sec = MAXINT(typeof(ts.tv_sec));