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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:34:38 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:34:38 +0000
commitfa5845db13c5cc87a03062fedf5d9cc237d14604 (patch)
tree800970ee68d1ce0659dfbde71e1149e6a2cacf9f /compat/getopt.c
parentInitial commit. (diff)
downloadtmux-fa5845db13c5cc87a03062fedf5d9cc237d14604.tar.xz
tmux-fa5845db13c5cc87a03062fedf5d9cc237d14604.zip
Adding upstream version 3.3a.upstream/3.3a
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compat/getopt.c')
-rw-r--r--compat/getopt.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/compat/getopt.c b/compat/getopt.c
new file mode 100644
index 0000000..26e0e6d
--- /dev/null
+++ b/compat/getopt.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 1987, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* OPENBSD ORIGINAL: lib/libc/stdlib/getopt.c */
+
+#include "compat.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int BSDopterr = 1, /* if error message should be printed */
+ BSDoptind = 1, /* index into parent argv vector */
+ BSDoptopt, /* character checked for validity */
+ BSDoptreset; /* reset getopt */
+char *BSDoptarg; /* argument associated with option */
+
+#define BADCH (int)'?'
+#define BADARG (int)':'
+#define EMSG ""
+
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ */
+int
+BSDgetopt(int nargc, char *const *nargv, const char *ostr)
+{
+ static const char *place = EMSG; /* option letter processing */
+ char *oli; /* option letter list index */
+
+ if (ostr == NULL)
+ return (-1);
+
+ if (BSDoptreset || !*place) { /* update scanning pointer */
+ BSDoptreset = 0;
+ if (BSDoptind >= nargc || *(place = nargv[BSDoptind]) != '-') {
+ place = EMSG;
+ return (-1);
+ }
+ if (place[1] && *++place == '-') { /* found "--" */
+ if (place[1])
+ return (BADCH);
+ ++BSDoptind;
+ place = EMSG;
+ return (-1);
+ }
+ } /* option letter okay? */
+ if ((BSDoptopt = (int)*place++) == (int)':' ||
+ !(oli = strchr(ostr, BSDoptopt))) {
+ /*
+ * if the user didn't specify '-' as an option,
+ * assume it means -1.
+ */
+ if (BSDoptopt == (int)'-')
+ return (-1);
+ if (!*place)
+ ++BSDoptind;
+ if (BSDopterr && *ostr != ':')
+ (void)fprintf(stderr,
+ "%s: unknown option -- %c\n", getprogname(),
+ BSDoptopt);
+ return (BADCH);
+ }
+ if (*++oli != ':') { /* don't need argument */
+ BSDoptarg = NULL;
+ if (!*place)
+ ++BSDoptind;
+ }
+ else { /* need an argument */
+ if (*place) /* no white space */
+ BSDoptarg = (char *)place;
+ else if (nargc <= ++BSDoptind) { /* no arg */
+ place = EMSG;
+ if (*ostr == ':')
+ return (BADARG);
+ if (BSDopterr)
+ (void)fprintf(stderr,
+ "%s: option requires an argument -- %c\n",
+ getprogname(), BSDoptopt);
+ return (BADCH);
+ }
+ else /* white space */
+ BSDoptarg = nargv[BSDoptind];
+ place = EMSG;
+ ++BSDoptind;
+ }
+ return (BSDoptopt); /* dump back option letter */
+}