busybox/libbb/bb_cat.c

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/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
//kbuild:lib-y += bb_cat.o
#include "libbb.h"
int FAST_FUNC bb_cat(char **argv)
{
int fd;
int retval = EXIT_SUCCESS;
if (!*argv)
argv = (char**) &bb_argv_dash;
do {
fd = open_or_warn_stdin(*argv);
if (fd >= 0) {
/* This is not a xfunc - never exits */
off_t r = bb_copyfd_eof(fd, STDOUT_FILENO);
if (fd != STDIN_FILENO)
close(fd);
if (r >= 0)
continue;
}
retval = EXIT_FAILURE;
} while (*++argv);
return retval;
}