From a08a2a2dbb3d150bdb2d01bd54c6ad32f02fe5fa Mon Sep 17 00:00:00 2001
From: Tom Smeding <t.j.smeding@uu.nl>
Date: Sat, 13 Jul 2024 18:33:37 +0200
Subject: waar, poging 2

---
 .gitignore  |  1 +
 Maakbestand |  7 +++++--
 main.c      | 32 +++++++++++++++++++++++++++++++-
 src/waar.c  | 12 ++++++++++++
 4 files changed, 49 insertions(+), 3 deletions(-)
 create mode 100644 src/waar.c

diff --git a/.gitignore b/.gitignore
index 6ab0ef1..b348648 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 drukkedoos
 obj/
 .ccls-cache/
+compile_commands.json
diff --git a/Maakbestand b/Maakbestand
index e760b65..98e0798 100644
--- a/Maakbestand
+++ b/Maakbestand
@@ -1,5 +1,5 @@
 CC := gcc
-CFLAGS := -Wall -Wextra -std=c11 -O2
+CFLAGS := -Wall -Wextra -std=c2x -O2
 LDFLAGS :=
 
 OBJDIR := obj
@@ -9,6 +9,8 @@ SOURCES := $(shell find src -type f -name '*.c')
 HEADERS := $(shell find src -type f -name '*.h')
 OBJECTS := $(patsubst src/%.c,obj/%.o,$(SOURCES))
 
+PROGNAMES_X := $(patsubst src/%.c,X(%),$(wildcard src/*.c))
+
 .PHONY: all clean
 
 all: $(TARGET)
@@ -17,7 +19,8 @@ clean:
 	rm -rf $(OBJDIR) $(TARGET)
 
 $(TARGET): main.c $(OBJECTS)
-	$(CC) -o $@ $^ $(LDFLAGS)
+	$(CC) -o $@ $^ $(LDFLAGS) -DPROGNAMES_XLIST="$(PROGNAMES_X)"
 
 $(OBJECTS): obj/%.o: src/%.c $(HEADERS)
+	@mkdir -p $(dir $@)
 	$(CC) $(CFLAGS) -c -o $@ $<
diff --git a/main.c b/main.c
index b5e3883..8cde9b8 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,35 @@
 #include <stdio.h>
+#include <string.h>
+
+#define X(name) int entry_ ## name (int argc, char **argv);
+PROGNAMES_XLIST
+#undef X
+
+static char* basename(char *path) {
+  size_t len = strlen(path);
+  for (size_t i = len - 1; i != 0; i--) {
+    if (path[i] == '/') return path + (i + 1);
+  }
+  return path;
+}
 
 int main(int argc, char **argv) {
-  fprintf(stderr, "Drukkedoos moet nog geïmplementeerd worden\n");
+  const char *prognamearg = basename(argv[0]);
+
+  if (strcmp(prognamearg, "drukkedoos") == 0) {
+    argv++;
+    argc--;
+    if (argc == 0) {
+      fprintf(stderr, "Gebruik: drukkedoos <commando>\n");
+      return 1;
+    }
+    prognamearg = basename(argv[0]);
+  }
+
+#define X(name) if (strcmp(argv[0], #name) == 0) return entry_ ## name (argc, argv);
+PROGNAMES_XLIST
+#undef X
+
+  fprintf(stderr, "Onbekend hulpmiddel: '%s'\n", prognamearg);
+  return 1;
 }
diff --git a/src/waar.c b/src/waar.c
new file mode 100644
index 0000000..6fa570c
--- /dev/null
+++ b/src/waar.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <string.h>
+
+int entry_waar(int argc, char **argv) {
+  if (argc == 2 && strcmp(argv[1], "-h") == 0) {
+    fprintf(stderr, "Gebruik: waar\n"
+                    "\n"
+                    "Geeft waarheid terug.\n");
+    return 0;
+  }
+  return 0;
+}
-- 
cgit v1.2.3-70-g09d2