table

чување 1996daf34997281d76b186508c439029c318796c
Аутор: Страхиња Радић <contact@strahinja.org>
Датум:   Wed, 16 Sep 2020 18:36:52 +0200

Initial commit

Diffstat:
A
.gitignore
 | 
5
+++++
A
Makefile
 | 
9
+++++++++
A
defs.h
 | 
13
+++++++++++++
A
table
 | 
0

A
table.c
 | 
82
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

измењених датотека: 5, додавања: 109(+), брисања: 0(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,5 @@
+*~
+*.bak
+*.orig
+*.rej
+*.o
diff --git a/Makefile b/Makefile
@@ -0,0 +1,9 @@
+all: table
+
+table: table.o
+
+clean: table.o table
+	rm table.o table 2>/dev/null
+
+.PHONY: clean all
+
diff --git a/defs.h b/defs.h
@@ -0,0 +1,13 @@
+#ifndef __DEFS_H
+#define __DEFS_H
+
+#define PROGRAMNAME "table"
+#define VERSION "0.1"
+
+#define BUFSIZE 4096
+
+#define   CMD_NONE      0
+#define   CMD_VERSION   1
+
+#endif
+
diff --git a/table b/table
Бинарне датотеке се разликују.
diff --git a/table.c b/table.c
@@ -0,0 +1,82 @@
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include "defs.h"
+
+int
+version()
+{
+    printf("%s v%s\n", PROGRAMNAME, VERSION);
+    return 0;
+}
+
+int
+usage()
+{
+    printf("Usage: %s [-v|--version]\n", PROGRAMNAME);
+    return 0;
+}
+
+int
+error(int code, char *fmt, ...)
+{
+    char buf[BUFSIZE];
+    va_list args;
+    va_start(args, fmt);
+    vsnprintf(buf, sizeof(buf), fmt, args);
+    va_end(args);
+    fprintf(stderr, "%s: %s", PROGRAMNAME, buf);
+    return code;
+}
+
+int
+main(int argc, char **argv)
+{
+    if (argc == 1)
+    {
+        return usage();
+    }
+
+    char *arg;
+    int cmd = CMD_NONE;
+    while (arg = *argv++) {
+        if (*arg++ == '-')
+        {
+            char c = *arg++;
+            if (c == '-')
+            {
+                if (!strcmp(arg, "version"))
+                {
+                    cmd = CMD_VERSION;
+                }
+                else
+                {
+                    error(1, "Invalid argument: --%s\n", arg);
+                    return usage();
+                }
+            }
+            else
+            {
+                switch (c)
+                {
+                    case 'v':
+                        cmd = CMD_VERSION;
+                        break;
+                    default:
+                        error(1, "Invalid argument: -%c\n", c);
+                        return usage();
+                }
+            }
+        }
+        arg++;
+    }
+
+    if (cmd == CMD_VERSION)
+    {
+        return version();
+    }
+
+    error(2, "Invalid arguments\n");
+    return usage();
+}
+