1 files changed, 36 insertions, 0 deletions
diff --git a/src/os/linux/linux_file.c b/src/os/linux/linux_file.c
new file mode 100644
index 0000000..5071f77
--- /dev/null
+++ b/src/os/linux/linux_file.c
@@ -0,0 +1,36 @@
+#include <os/os.h>
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+char *
+os_file_read_as_string(Arena *arena, char *filepath, size_t *len)
+{
+    int fd = open(filepath, O_RDONLY);
+    if (fd == -1) {
+        printf("can't open file %s for reading\n", filepath);
+        return 0;
+    }
+
+    struct stat statbuf;
+    if (fstat(fd, &statbuf) == -1) {
+        printf("can't fstat file %s\n", filepath);
+        return 0;
+    }
+
+    char *dest = arena_push(arena, statbuf.st_size+1);
+    ssize_t bytes_read = read(fd, dest, statbuf.st_size);
+    if (bytes_read != statbuf.st_size) {
+        printf("only read %ld/%ld bytes\n", statbuf.st_size, bytes_read);
+        arena->size_used -= statbuf.st_size+1; // Todo: cleanup
+        return 0;
+    }
+    dest[bytes_read] = '\0';
+    *len = statbuf.st_size;
+
+    return dest;
+}
+
+