Add *argument*

README.md

@@ -1,3 +1,15 @@
 # mycfetch
 
-Simle neofetch.
+Simple neofetch.  
+
+Usage
+--
+Use argument to select art. If not argument provided, mycfetch uses first entry in arts list.  
+For your convenience, you can set alias for needed art.  
+
+List of arts
+--
+- `cat`  
+- `freebsd`  
+- `gentoo`  
+- `arch`  

config.h

@@ -1,29 +1,44 @@
+#include "defs.h"
+
 const int max_username_length = 128;
 const int max_hostname_length = 128;
 const int max_uptime_length   = 40;
 
-char *art[] = {
-// FreeBSD
+struct art_entry arts[] = {
+    {
+        "cat",
+        {
+            " ╱|、    ",
+            "(˚ˎ。7   ",
+            "| 、˜〵  ",
+            "じしˍ,)ノ"
+        }
+    },
+    {
+        "freebsd",
+        {
             "\033[31m_    _\033[0m",
             "\033[31m\\‾‾‾‾/\033[0m",
-    "\033[31m|^ww^|\033[0m",
+            "\033[31m|^vv^|\033[0m",
             "\033[31m\\____/\033[0m"
-
-// Gentoo
-// "\x1B[38;5;135m /‾\\",
-// "\x1B[38;5;135m( \x1B[38;5;183mo \x1B[38;5;135m\\",
-// "\x1B[38;5;135m/   /",
-// "\x1B[38;5;135m\\__/"
-
-// Arch
-// "   /\\    ",
-// "  /\\ \\  ",
-// " /    \\  ",
-// "/__/\\__\\"
-
-// Just cute cat
-// " ╱|、    ",
-// "(˚ˎ。7   ",
-// " |、˜〵  ",
-// "じしˍ,)ノ"
+        }
+    },
+    {
+        "gentoo",
+        {
+            " /‾\\ ",
+            "( o \\",
+            "/   /",
+            "\\__/ "
+        }
+    },
+    {
+        "arch",
+        {
+            "   /\\    ",
+            "  /\\ \\  ",
+            " /    \\  ",
+            "/__/\\__\\"
+        }
+    }
 };

defs.h

@@ -0,0 +1,10 @@
+#ifndef __DEFS_H__
+#define __DEFS_H__
+
+struct art_entry
+{
+    char *name;
+    char *art[4];
+};
+
+#endif /* __DEFS_H__ */

main.c

@@ -1,9 +1,22 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/utsname.h>
 #include <unistd.h>
 #include <time.h>
+#include <stdarg.h>
+#include <string.h>
 
 #include "config.h"
+#include "defs.h"
+
+void die(int code, char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    vfprintf(stderr, fmt, args);
+    va_end(args);
+    exit(code);
+}
 
 void getuptime(char *buffer, int max_length)
 {
@@ -26,21 +39,34 @@ void getuptime(char *buffer, int max_length)
 
 int main(int argc, char **argv)
 {
+    if (argc > 2) die(1, "usage: %s [artname]\n", argv[0]);
+
     struct utsname uname_buf;
-    struct timespec uptime_buf;
     char hostname[max_hostname_length];
     char username[max_username_length];
     char uptime[max_uptime_length];
 
+    int i;
+    char **art = NULL;
+
     gethostname(hostname, max_hostname_length);
     getlogin_r(username, max_username_length);
     getuptime(uptime, max_uptime_length);
 
+    if (argc == 2)
+    {
+        for (i = 0; i < sizeof(arts)/sizeof(struct art_entry); ++i)
+            if (!strcmp(arts[i].name, argv[1])) { art = arts[i].art; break; }
+        if (!art) die(1, "Art %s not found\n", argv[1]);
+    } else
+    {
+        art = arts[0].art;
+    }
+
     uname(&uname_buf);
     printf("%s %s@%s\n", art[0], username, hostname);
     printf("%s --\n",    art[1]);
     printf("%s %s %s\n", art[2], uname_buf.sysname, uname_buf.release);
     printf("%s %s\n",    art[3], uptime);
-    // #include "order.c"
     return 0;
 }