renaming (mostly)

1 files changed, 52 insertions, 0 deletions

diff --git a/prb_sys.c b/prb_sys.c
new file mode 100644
index 0000000..3747f18
--- /dev/null
+++ b/prb_sys.c
@@ -0,0 +1,52 @@
+/* TODO(pryazha): OS specific */
+FLS sys_read_entire_file_fls(Arena *a, const char *fname)
+{
+	FILE	*f;
+	FLS	r;
+	S32	len;
+
+	MEM0STRUCT(&r);
+
+	f = fopen(fname, "rb");
+	if (!f)
+		return r;
+
+	if (fseek(f, 0, SEEK_END) == -1)
+		goto error;
+	if ((len = ftell(f)) == -1)
+		goto error;
+	rewind(f);
+
+	r.p = push_arena(a, len+1);
+	if (!fread(r.p, len, 1, f))
+		goto error;
+	r.p[len] = 0;
+	r.len = len+1;
+
+	fclose(f);
+
+	return r;
+error:
+	fclose(f);
+	return r;
+}
+
+#define PRGE_MAX_PATH 256
+
+char *sys_getbindir(Arena *a)
+{
+	U64	size;
+	char	*path;
+	ssize_t	len;
+
+	size = PRGE_MAX_PATH*sizeof(char);
+	path = push_arena(a, size);
+
+	len = readlink("/proc/self/exe", path, size-1);
+	if (len <= 0)
+		return path;
+
+	path[len] = 0;
+
+	return path;
+}