From 538c69cbf8a2d82b05cccf3c68a1119b445d50fa Mon Sep 17 00:00:00 2001
From: 0xf8 <0xf8.dev@proton.me>
Date: Sat, 25 Feb 2023 12:27:56 -0500
Subject: [PATCH] change usleep to nanosleep, new config option. slight
 refactoring

Signed-off-by: 0xf8 <0xf8.dev@proton.me>
---
 rbtext.c | 53 ++++++++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 25 deletions(-)

diff --git a/rbtext.c b/rbtext.c
index 8f46e23..a980e57 100644
--- a/rbtext.c
+++ b/rbtext.c
@@ -1,20 +1,25 @@
 /*
-Rainbow Text (rbtext)
-$ gcc -o rbtext rbtext.c
-Created by Seelenlos <samoyo@protonmail.com>
 
-NO WARRANTY OF ANY KIND.
-NO LIABILITY TO CREATOR FOR ANY TYPE OF DAMAGE.
-I DON'T CARE HOW YOU USE OR CONFIGURE THIS PROGRAM.
+Copyright 2022 g.uwu@tutanota.com
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. 
+
 */
 
+#include <memory.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <memory.h>
+#include <time.h>
 #include <unistd.h>
 
 // How many milliseconds the program will wait until the next print ( DEFAULT = 100 )
-#define CONF_SLEEP_TIMEMS 100
+#define CONF_SLEEP_TIMEMS   (long)100
+// How many seconds (in addition to millisecond above) the program will wait ( DEFAULT = 0 )
+#define CONF_SLEEP_TIMESEC  (time_t)0
 // How many times a color should be shown before switching to the next ( DEFAULT = 2 )
 #define CONF_COLOR_LAG 2
 
@@ -33,46 +38,44 @@ const char *COLORS[] = {
     "193;71;153",   // PINK
 };
 
-
+unsigned long COLORS_SIZE = sizeof(COLORS) / sizeof(char *);
 unsigned long long t = 0;
 void genColors(char *s) {
-    char *cstr = (char *)malloc(20 * sizeof(char) + 1);
+    char *cstr = (char *)malloc(64 + 1);
 
     for (unsigned long i = 0; i < strlen(s); i++) {
-        unsigned long c = (((t + i) / CONF_COLOR_LAG) % (sizeof(COLORS) / sizeof(char *)));
-        snprintf(cstr, 20 * sizeof(char), "\e[38;2;%sm", COLORS[c]);
+        unsigned long c = (((t + i) / CONF_COLOR_LAG) % COLORS_SIZE);
+        snprintf(cstr, 64, "\e[38;2;%sm", COLORS[c]);
         printf("%s%c\e[0m",cstr,s[i]);
     }
 
     free(cstr);
 }
 
-int main(int carg, char **varg) {
-    if (carg < 2) {
+int main(int argc, char **argv) {
+    if (argc < 2) {
         // [ERROR] No arguments given. USAGE: ... <text>
-        printf("\e[1;31m[ERROR]\e[0m No arguments given.\n\tUSAGE: \e[34m%s \e[33m<text>\e[0m\n",varg[0]);
+        printf("\e[1;31m[ERROR]\e[0m No arguments given.\n\tUSAGE: \e[34m%s \e[33m<text>\e[0m\n",argv[0]);
         return 1;
     }
-
-    char *text = (char *)malloc(1024 * sizeof(char) + 1);
     
-    // Similar to pythons str.join(' ') method
+    char *text = (char *)malloc(1024 + 1);
+
     // Adds all the arguments together with spaces seperating them
-    // EG: ./rbtext hello world > "hello world"
-    for (int i = 1, j = 0; i < carg; i++) {
-        for (int k = 0; k < strlen(varg[i]); k++, j++) {
-            text[j] = varg[i][k];
-        }
+    for (int i = 1, j = 0; i < argc; i++) {
+        for (unsigned int k = 0; k < strlen(argv[i]); k++, j++)
+            text[j] = argv[i][k];
         
         text[j] = ' ';
         j++;
-    }
+    }        
 
+    struct timespec rem, req = {CONF_SLEEP_TIMESEC, CONF_SLEEP_TIMEMS*1000*1000};
     while (1) {
         printf("\r\e[2K");
         genColors(text);
         fflush(stdout);
-        usleep(CONF_SLEEP_TIMEMS*1000);
+        nanosleep(&req, &rem);
         t += 1;
     }