From 1ca75efcaa18be049070220a40f921d7023c790e Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Mon, 23 Dec 2024 04:29:07 -0500
Subject: rename optarg, optind to avoid possible link issues

---
 getopt.c | 22 +++++++++++-----------
 uxd.c    | 20 ++++++++++----------
 2 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/getopt.c b/getopt.c
index 0c0057e..8a23548 100644
--- a/getopt.c
+++ b/getopt.c
@@ -47,9 +47,9 @@ static char *index (char *s, int c) {
  * get option letter from argument vector
  */
 int	opterr = 1,		/* useless, never set or used */
-	optind = 1,		/* index into parent argv vector */
+	my_optind = 1,		/* index into parent argv vector */
 	optopt;			/* character checked for validity */
-char	*optarg;		/* argument associated with option */
+char	*my_optarg;		/* argument associated with option */
 
 #define tell(s)	fprintf(stderr, "%s: %s", self, s); \
 		fputc(optopt,stderr);fputs(" (use -h for help)\n",stderr);return(BADCH);
@@ -60,29 +60,29 @@ int my_getopt(int nargc, char **nargv, char *ostr) {
 	char	*oli;		/* option letter list index */
 
 	if(!*place) {			/* update scanning pointer */
-		if(optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) return(EOF);
+		if(my_optind >= nargc || *(place = nargv[my_optind]) != '-' || !*++place) return(EOF);
 		if (*place == '-') {	/* found "--" */
-			++optind;
+			++my_optind;
 			return(EOF);
 		}
 	}				/* option letter okay? */
 	if ((optopt = (int)*place++) == ARGCH || !(oli = index(ostr,optopt))) {
-		if(!*place) ++optind;
+		if(!*place) ++my_optind;
 		tell("illegal option: -");
 	}
 	if (*++oli != ARGCH) {		/* don't need argument */
-		optarg = NULL;
-		if (!*place) ++optind;
+		my_optarg = NULL;
+		if (!*place) ++my_optind;
 	}
 	else {				/* need an argument */
-		if (*place) optarg = place;	/* no white space */
-		else if (nargc <= ++optind) {	/* no arg */
+		if (*place) my_optarg = place;	/* no white space */
+		else if (nargc <= ++my_optind) {	/* no arg */
 			place = EMSG;
 			tell("option requires an argument: -");
 		}
-	 	else optarg = nargv[optind];	/* white space */
+	 	else my_optarg = nargv[my_optind];	/* white space */
 		place = EMSG;
-		++optind;
+		++my_optind;
 	}
 	return(optopt);			/* dump back option letter */
 }
diff --git a/uxd.c b/uxd.c
index 7f518e0..b1adaef 100644
--- a/uxd.c
+++ b/uxd.c
@@ -35,8 +35,8 @@ on stderr.
 
 /* from getopt.c */
 extern int my_getopt(int, char **, char *);
-extern char *optarg;
-extern int optind;
+extern char *my_optarg;
+extern int my_optind;
 
 #ifndef VERSION
 #define VERSION "(unknown version)"
@@ -293,19 +293,19 @@ void parse_args(int argc, char **argv) {
 					fprintf(stderr, "%s: multiple -d options not supported.\n", self);
 					exit(1);
 				}
-				dump_data_arg = optarg; break;
+				dump_data_arg = my_optarg; break;
 			case '1':
 				alternate_colors = 0; break;
 			case 'i':
 				print_info_opt = 1; break;
 			case 'c':
-				mono = 0; parse_colors(optarg); break;
+				mono = 0; parse_colors(my_optarg); break;
 			case 'n':
 				break; /* already handled in parse_options() */
 			case 'b':
 				bold = 1; break;
 			case 'l':
-				limit = parse_number(opt, optarg);
+				limit = parse_number(opt, my_optarg);
 				if(limit < 0) {
 					fprintf(stderr, "%s: negative limit for -l not allowed.\n", self);
 					exit(1);
@@ -316,12 +316,12 @@ void parse_args(int argc, char **argv) {
 			case 'm':
 				mono = 1; break;
 			case 'o':
-				display_offset = parse_number(opt, optarg); break;
+				display_offset = parse_number(opt, my_optarg); break;
 			case 'S':
 				seek_offset_zero = 1;
 				/* fall thru */
 			case 's':
-				seekpos = parse_number(opt, optarg);
+				seekpos = parse_number(opt, my_optarg);
 				break;
 			case 'u':
 				hex_byte_fmt = UC_BYTE_FMT; hex_addr_fmt = UC_ADDR_FMT; break;
@@ -335,16 +335,16 @@ void parse_args(int argc, char **argv) {
 	}
 
 	if(dump_data_arg) {
-		if(optind != argc) {
+		if(my_optind != argc) {
 			fprintf(stderr, "%s: cannot give a filename when -d is used.\n", self);
 			exit(1);
 		}
 	} else {
 		/* filename (if present) must come after all -options, and
 		   there can only be one filename. */
-		if(optind < (argc - 1)) usage();
+		if(my_optind < (argc - 1)) usage();
 
-		open_input(argv[optind]);
+		open_input(argv[my_optind]);
 	}
 }
 
-- 
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