From 01a5b51315430bc714a194cd0a864d4e33d6682f Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Sat, 14 Dec 2024 23:51:29 -0500
Subject: rename getopt() so we can compile with g++ if needed.

---
 getopt.c | 15 ++++-----------
 uxd.1    |  4 +++-
 uxd.c    | 19 ++++++-------------
 3 files changed, 13 insertions(+), 25 deletions(-)

diff --git a/getopt.c b/getopt.c
index c6bf394..0c0057e 100644
--- a/getopt.c
+++ b/getopt.c
@@ -36,17 +36,12 @@ extern char *self;
 #define	ENDARGS  "--"
 
 /* this is included because index is not on some UNIX systems */
-static
-char *
-index (s, c)
-register	char	*s;
-register	int 	c;
-	{
+static char *index (char *s, int c) {
 	while (*s)
 		if (c == *s) return (s);
 		else s++;
 	return (NULL);
-	}
+}
 
 /*
  * get option letter from argument vector
@@ -60,11 +55,9 @@ char	*optarg;		/* argument associated with option */
 		fputc(optopt,stderr);fputs(" (use -h for help)\n",stderr);return(BADCH);
 
 
-int getopt(int nargc, char **nargv, char *ostr)
-{
+int my_getopt(int nargc, char **nargv, char *ostr) {
 	static char	*place = EMSG;	/* option letter processing */
-	register char	*oli;		/* option letter list index */
-	char	*index();
+	char	*oli;		/* option letter list index */
 
 	if(!*place) {			/* update scanning pointer */
 		if(optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) return(EOF);
diff --git a/uxd.1 b/uxd.1
index 87d5858..eb8b99c 100644
--- a/uxd.1
+++ b/uxd.1
@@ -75,7 +75,9 @@ NOT IMPLEMENTED YET.
 Print built\-in usage message and exit.
 .TP
 .BI \-l \ length
-Stop dumping after \fIlength\fP bytes (note: bytes, not characters).
+Stop dumping after \fIlength\fP bytes (not characters). If the limit is
+reached in the middle of a multibyte character, the entire character
+will be dumped.
 .TP
 .B  \-m
 Monochrome mode. Uses underline, bold, reverse video instead of color.
diff --git a/uxd.c b/uxd.c
index 2502463..c4ad772 100644
--- a/uxd.c
+++ b/uxd.c
@@ -3,18 +3,6 @@
 #include <string.h>
 #include <unistd.h>
 
-extern int getopt(int, char **, char *);
-extern char *optarg;
-extern int optind;
-
-/* output looks like:
-
-       0  1  2  3  4  5  6  7   8  9  A  B  C  D  E  F
-0000: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  abcdefghijklmnop
-
-...first column will extend to more digits if needed.
-*/
-
 /* UTF-8 spec summary, taken from Wikipedia and elsewhere, kept here
    for locality of reference.
 
@@ -45,6 +33,11 @@ fe ff, it's UTF-16 big-endian. We detect these and print a warning
 on stderr.
 */
 
+/* from getopt.c */
+extern int my_getopt(int, char **, char *);
+extern char *optarg;
+extern int optind;
+
 #ifndef VERSION
 #define VERSION "(unknown version)"
 #endif
@@ -127,7 +120,7 @@ void parse_options(int argc, char **argv) {
 			version();
 	}
 
-	while((opt = getopt(argc, argv, "l:rmo:s:uhv")) != -1) {
+	while((opt = my_getopt(argc, argv, "l:rmo:s:uhv")) != -1) {
 		switch(opt) {
 			case 'l':
 				limit = parse_number(optarg); break;
-- 
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