diff options
| -rw-r--r-- | archival/cpio.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/archival/cpio.c b/archival/cpio.c index f525419b8..daf6cffc9 100644 --- a/archival/cpio.c +++ b/archival/cpio.c @@ -38,6 +38,13 @@ //config: depends on FEATURE_CPIO_O //config: help //config: Passthrough mode. Rarely used. +//config: +//config:config FEATURE_CPIO_IGNORE_DEVNO +//config: bool "Support --ignore-devno like GNU cpio" +//config: default y +//config: depends on FEATURE_CPIO_O && LONG_OPTS +//config: help +//config: Optionally ignore device numbers when creating archives. //applet:IF_CPIO(APPLET(cpio, BB_DIR_BIN, BB_SUID_DROP)) @@ -75,6 +82,9 @@ //usage: "\n -R USER[:GRP] Set owner of created files" //usage: "\n -L Dereference symlinks" //usage: "\n -0 NUL terminated input" +//usage: IF_FEATURE_CPIO_IGNORE_DEVNO( +//usage: "\n --ignore-devno" +//usage: ) /* GNU cpio 2.9 --help (abridged): @@ -162,11 +172,13 @@ enum { IF_FEATURE_CPIO_P(OPTBIT_PASSTHROUGH,) IF_LONG_OPTS( OPTBIT_QUIET ,) IF_LONG_OPTS( OPTBIT_2STDOUT ,) + IF_FEATURE_CPIO_IGNORE_DEVNO(OPTBIT_IGNORE_DEVNO,) OPT_CREATE = IF_FEATURE_CPIO_O((1 << OPTBIT_CREATE )) + 0, OPT_FORMAT = IF_FEATURE_CPIO_O((1 << OPTBIT_FORMAT )) + 0, OPT_PASSTHROUGH = IF_FEATURE_CPIO_P((1 << OPTBIT_PASSTHROUGH)) + 0, OPT_QUIET = IF_LONG_OPTS( (1 << OPTBIT_QUIET )) + 0, OPT_2STDOUT = IF_LONG_OPTS( (1 << OPTBIT_2STDOUT )) + 0, + OPT_IGNORE_DEVNO = IF_FEATURE_CPIO_IGNORE_DEVNO((1 << OPTBIT_IGNORE_DEVNO)) + 0, }; #define OPTION_STR "it0uvdmLF:R:" @@ -304,6 +316,11 @@ static NOINLINE int cpio_o(void) } } +#if ENABLE_FEATURE_CPIO_IGNORE_DEVNO + if (option_mask32 & OPT_IGNORE_DEVNO) + st.st_dev = st.st_rdev = 0; +#endif + bytes += printf("070701" "%08X%08X%08X%08X%08X%08X%08X" "%08X%08X%08X%08X" /* GNU cpio uses uppercase hex */ @@ -379,6 +396,9 @@ int cpio_main(int argc UNUSED_PARAM, char **argv) "null\0" No_argument "0" "quiet\0" No_argument "\xff" "to-stdout\0" No_argument "\xfe" +#if ENABLE_FEATURE_CPIO_IGNORE_DEVNO + "ignore-devno\0" No_argument "\xfd" +#endif ; #endif |