xargs: support --no-run-if-empty (synonym to -r)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -15,10 +15,6 @@
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* http://www.opengroup.org/onlinepubs/007904975/utilities/xargs.html
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*/
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//applet:IF_XARGS(APPLET_NOEXEC(xargs, xargs, BB_DIR_USR_BIN, BB_SUID_DROP, xargs))
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//kbuild:lib-$(CONFIG_XARGS) += xargs.o
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//config:config XARGS
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//config: bool "xargs"
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//config: default y
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@ -58,6 +54,10 @@
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//config: instead of whitespace, and the quotes and backslash
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//config: are not special.
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//applet:IF_XARGS(APPLET_NOEXEC(xargs, xargs, BB_DIR_USR_BIN, BB_SUID_DROP, xargs))
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//kbuild:lib-$(CONFIG_XARGS) += xargs.o
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#include "libbb.h"
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/* This is a NOEXEC applet. Be very careful! */
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@ -89,7 +89,9 @@ struct globals {
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int idx;
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} FIX_ALIASING;
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define INIT_G() do { } while (0)
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#define INIT_G() do { \
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G.eof_str = NULL; /* need to clear by hand because we are NOEXEC applet */ \
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} while (0)
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/*
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@ -412,7 +414,12 @@ int xargs_main(int argc, char **argv)
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INIT_G();
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G.eof_str = NULL;
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#if ENABLE_DESKTOP && ENABLE_LONG_OPTS
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/* For example, Fedora's build system uses --no-run-if-empty */
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applet_long_options =
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"no-run-if-empty\0" No_argument "r"
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;
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#endif
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opt = getopt32(argv, OPTION_STR, &max_args, &max_chars, &G.eof_str, &G.eof_str);
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/* -E ""? You may wonder why not just omit -E?
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