From 83c09c4f0b694d754f05ddd1f34dd0c9770e47fe Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Mon, 8 Sep 2025 16:24:10 +0200
Subject: [PATCH] change read parameter into main

---
 src/discspan.c | 81 +++++++++++++++++++++-----------------------------
 1 file changed, 34 insertions(+), 47 deletions(-)

diff --git a/src/discspan.c b/src/discspan.c
index fdfb8d3..0441af9 100644
--- a/src/discspan.c
+++ b/src/discspan.c
@@ -13,45 +13,60 @@
 #define DVD5 4700000000
 #define CD 734003200
 
-typedef struct {
-	char *input;
-	char *output;
-	uint64_t split;
-} param_t;
-
 void show_version()
 {
 	printf("discspan %s\n", DISCSPAN_VERSION);
 	printf("libspandisc %s\n", get_version());
 }
 
-param_t read_argument(int argc, char *argv[])
+void print_human_read_size(const char *output, medium_t* medium)
 {
-	param_t parameter = { NULL, NULL, 0 };
+	uint64_t humanread;
+	char einheit[6] = {'B', 'K', 'M', 'G', 'T', 'P'};
+	uint8_t i = 0;
+
+	humanread = medium->freespace;
+	while (humanread >= 1024) {
+		humanread /= 1024;
+		i++;
+	}
+
+	if (i > sizeof(einheit)/sizeof(einheit[0]))
+		i = 0;
+
+	fprintf(stdout, "free space on %s: %ld bytes (%ld %c)\n", output,
+			medium->freespace, humanread, einheit[i]);
+}
+
+int main(int argc, char *argv[])
+{
+	char* input = NULL;
+	char* output = NULL;
+	uint64_t split = 0;
 
 	uint32_t c = 0;
 	while ((c = getopt(argc, argv, ":59bcf:hi:o:v")) != -1) {
 		switch (c) {
 		case 'i':
-			parameter.input = optarg;
+			input = optarg;
 			break;
 		case 'o':
-			parameter.output = optarg;
+			output = optarg;
 			break;
 		case '5':
-			parameter.split = DVD5;
+			split = DVD5;
 			break;
 		case '9':
-			parameter.split = DVD9;
+			split = DVD9;
 			break;
 		case 'b':
-			parameter.split = BLURAY;
+			split = BLURAY;
 			break;
 		case 'c':
-			parameter.split = CD;
+			split = CD;
 			break;
 		case 'f':
-			parameter.split = atoll(optarg);
+			split = atoll(optarg);
 			break;
 		case 'h':
 			show_version();
@@ -68,46 +83,18 @@ param_t read_argument(int argc, char *argv[])
 		}
 	}
 
-	return parameter;
-}
-
-void print_human_read_size(const char *output, medium_t* medium)
-{
-	uint64_t humanread;
-	char einheit[6] = {'B', 'K', 'M', 'G', 'T', 'P'};
-	uint8_t i = 0;
-
-	humanread = medium->freespace;
-	while (humanread >= 1024) {
-		humanread /= 1024;
-		i++;
-	}
-
-	if (i > sizeof(einheit)/sizeof(einheit[0]))
-		i = 0;
-
-	fprintf(stdout, "free space on %s: %ld bytes (%ld %c)\n", output,
-			medium->freespace, humanread, einheit[i]);
-}
-
-int main(int argc, char *argv[])
-{
-	param_t parameter = read_argument(argc, argv);
-
-	if (parameter.input == NULL
-			|| parameter.output == NULL
-			|| parameter.split < 2048) {
+	if (input == NULL || output == NULL || split < 2048) {
 		fprintf(stderr, "ERROR: missing arguments\n");
 		return 1;
 	}
 
-	if (access(parameter.input, F_OK) < 0) {
-		fprintf(stderr, "ERROR: %s file does not exists\n", parameter.input);
+	if (access(input, F_OK) < 0) {
+		fprintf(stderr, "ERROR: %s file does not exists\n", input);
 		return 1;
 	}
 
 	status_print = print_human_read_size;
-	span(parameter.input, parameter.output, parameter.split);
+	span(input, output, split);
 
 	return 0;
 }
-- 
2.47.3