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kbuild: add support for reading stdin with gen_init_cpio
Treat an argument of "-" as meaning "read stdin for cpio files" so gen_init_cpio can be piped into. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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@ -498,7 +498,9 @@ int main (int argc, char *argv[])
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exit(1);
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exit(1);
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}
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}
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if (! (cpio_list = fopen(argv[1], "r"))) {
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if (!strcmp(argv[1], "-"))
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cpio_list = stdin;
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else if (! (cpio_list = fopen(argv[1], "r"))) {
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fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
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fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
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argv[1], strerror(errno));
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argv[1], strerror(errno));
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usage(argv[0]);
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usage(argv[0]);
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