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kbuild: add support for reading stdin with gen_init_cpio

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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>
This commit is contained in:
Mike Frysinger 2007-05-10 22:44:28 -07:00 committed by Sam Ravnborg
parent e99c343f16
commit f2434ec1e0
1 changed files with 3 additions and 1 deletions
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4
usr/gen_init_cpio.c
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@ -498,7 +498,9 @@ int main (int argc, char *argv[])
exit(1);
}
if (! (cpio_list = fopen(argv[1], "r"))) {
if (!strcmp(argv[1], "-"))
cpio_list = stdin;
else if (! (cpio_list = fopen(argv[1], "r"))) {
fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
argv[1], strerror(errno));
usage(argv[0]);