2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
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32 #include <sys/types.h>
36 #include <capsicum_helpers.h>
45 main(int argc, char *argv[])
47 int nflag; /* if not set, output a trailing newline. */
48 int veclen; /* number of writev arguments. */
49 struct iovec *iov, *vp; /* Elements to write, current element. */
51 char newline[] = "\n";
53 if (caph_limit_stdio() < 0 || caph_enter() < 0)
56 /* This utility may NOT do getopt(3) option parsing. */
57 if (*++argv && !strcmp(*argv, "-n")) {
64 veclen = (argc >= 2) ? (argc - 2) * 2 + 1 : 0;
66 if ((vp = iov = malloc((veclen + 1) * sizeof(struct iovec))) == NULL)
69 while (argv[0] != NULL) {
72 len = strlen(argv[0]);
75 * If the next argument is NULL then this is the last argument,
76 * therefore we need to check for a trailing \c.
78 if (argv[1] == NULL) {
79 /* is there room for a '\c' and is there one? */
81 argv[0][len - 2] == '\\' &&
82 argv[0][len - 1] == 'c') {
83 /* chop it and set the no-newline flag. */
97 vp->iov_base = newline;
100 /* assert(veclen == (vp - iov)); */
104 nwrite = (veclen > IOV_MAX) ? IOV_MAX : veclen;
105 if (writev(STDOUT_FILENO, iov, nwrite) == -1)