bc: convert to "G trick" - this returns bc to zero bss increase

[oweals/busybox.git] / coreutils / cp.c

diff --git a/coreutils/cp.c b/coreutils/cp.c
index 455bffbba1299f03aca7fc63e1337be2a6310626..b26c0e9547c8a45a2f01ec15d6a79dfd1a984853 100644 (file)
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -24,6 +24,11 @@
 //config:      help
 //config:      Enable long options.
 //config:      Also add support for --parents option.
+//config:
+//config:config FEATURE_CP_REFLINK
+//config:      bool "Enable --reflink[=auto]"
+//config:      default y
+//config:      depends on FEATURE_CP_LONG_OPTIONS
 
 //applet:IF_CP(APPLET_NOEXEC(cp, cp, BB_DIR_BIN, BB_SUID_DROP, cp))
 /* NOEXEC despite cases when it can be a "runner" (cp -r LARGE_DIR NEW_DIR) */
@@ -72,10 +77,14 @@ int cp_main(int argc, char **argv)
 #if ENABLE_FEATURE_CP_LONG_OPTIONS
                /*OPT_rmdest  = FILEUTILS_RMDEST = 1 << FILEUTILS_CP_OPTNUM */
                OPT_parents = 1 << (FILEUTILS_CP_OPTNUM+1),
+               OPT_reflink = 1 << (FILEUTILS_CP_OPTNUM+2),
 #endif
        };
 
 #if ENABLE_FEATURE_CP_LONG_OPTIONS
+# if ENABLE_FEATURE_CP_REFLINK
+       char *reflink = NULL;
+# endif
        flags = getopt32long(argv, "^"
                FILEUTILS_CP_OPTSTR
                "\0"
@@ -99,7 +108,22 @@ int cp_main(int argc, char **argv)
                "update\0"         No_argument "u"
                "remove-destination\0" No_argument "\xff"
                "parents\0"        No_argument "\xfe"
+# if ENABLE_FEATURE_CP_REFLINK
+               "reflink\0"        Optional_argument "\xfd"
+               , &reflink
+# endif
        );
+# if ENABLE_FEATURE_CP_REFLINK
+       BUILD_BUG_ON((int)OPT_reflink != (int)FILEUTILS_REFLINK);
+       if (flags & FILEUTILS_REFLINK) {
+               if (!reflink)
+                       flags |= FILEUTILS_REFLINK_ALWAYS;
+               else if (strcmp(reflink, "always") == 0)
+                       flags |= FILEUTILS_REFLINK_ALWAYS;
+               else if (strcmp(reflink, "auto") != 0)
+                       bb_show_usage();
+       }
+# endif
 #else
        flags = getopt32(argv, "^"
                FILEUTILS_CP_OPTSTR