Put some notes down

4 files changed, 62 insertions, 4 deletions

diff --git a/src/Makefile b/src/Makefile
index f2f4bf7..d3798bb 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -20,7 +20,10 @@ BINARIES := main
 
 all: main
 
-main: main.c
+main: main.o shared.o
 
-clean:
-        rm -rvf $(BINARIES)
\ No newline at end of file
+main.o: main.c shared.h
+shared.o: shared.c shared.h
+
+c clean: # huh, didn't think that would work
+        rm -rvf $(BINARIES) $(wildcard *.o)
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index f07684d..bf110c2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,7 +1,28 @@
+#include "shared.h"
+
+#include <errno.h>
+#include <error.h>
 #include <stdio.h>
 
+#include <fcntl.h>
+#include <dirent.h>
+
+int testfilter(const struct dirent *node) {
+    return 1;
+}
+
 int main() {
-    printf("We do a little trolling it's called we do a little trolling\nGod help us all\n");
+    // Alright, going to start simple. First: scanning for files. I want to do this quickly and in one motion. No reason to do things in O(n2) time if I can do it in O(n)
+
+    int nnodes = -1;
+    struct dirent **nodes = NULL;
+    if((nnodes = scandir(".", &nodes, testfilter, alphasort)) < 0)
+        error(1, errno, "scandir broke");
+
+    for(int i = 0; i < nnodes; i++) {
+        printf("%s\n", nodes[i]->d_name);
+
+    }
 
     return 0;
 }
\ No newline at end of file
diff --git a/src/shared.c b/src/shared.c
new file mode 100644
index 0000000..5e58de0
--- /dev/null
+++ b/src/shared.c
@@ -0,0 +1,20 @@
+#include "shared.h"
+
+#include <stdlib.h>
+#include <errno.h>
+#include <error.h>
+
+void* xcalloc(size_t nmemb, size_t size) {
+    void *mem = calloc(nmemb, size);
+
+    if(mem == NULL) {
+        #if defined ___VXGG___XCALLOC_EXIT_ON_ERROR___ && ___VXGG___XCALLOC_EXIT_ON_ERROR___ > 0
+            error(1, errno, "<xcalloc> Could not allocate memory");
+        #endif
+
+        abort();
+    }
+    
+
+    return mem;
+}
\ No newline at end of file
diff --git a/src/shared.h b/src/shared.h
new file mode 100644
index 0000000..ac214f7
--- /dev/null
+++ b/src/shared.h
@@ -0,0 +1,14 @@
+#ifndef __VXGG_REWRITE___SHARED_H___3880294315821___
+#define __VXGG_REWRITE___SHARED_H___3880294315821___
+
+#include <stddef.h>
+
+// Defines how `xcalloc()` should exit. `___VXGG___XCALLOC_EXIT_ON_ERROR___ > 0` calls `error()`, and thus functions registered with
+// `atexit()` and `on_exit()`. `___VXGG___XCALLOC_EXIT_ON_ERROR___ <= 0` calls `abort()` on error. `xcalloc()` will ALWAYS 'abort',
+// doing otherwise defeats the purpose of the function
+#define ___VXGG___XCALLOC_EXIT_ON_ERROR___ 1
+
+// `calloc()` with error checking. Calls `error()` or `abort()` on error depending on the value of `___VXGG___XCALLOC_EXIT_ON_ERROR___`
+void* xcalloc(size_t nmemb, size_t size);
+
+#endif
\ No newline at end of file