Dump Canvas account directory structure. Start of directory parsing.

1 files changed, 56 insertions, 43 deletions

diff --git a/canls.c b/canls.c
index f47656e..7907046 100644
--- a/canls.c
+++ b/canls.c
@@ -1,55 +1,68 @@
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <stdlib.h>		/* calloc */
+#include <string.h>		/* memmove */
+#include <unistd.h>	/* chdir */
+#include "shared.h"
 
-enum {
-	bufsize = 16,
-};
-
-typedef char byte;
-
-struct listing {
-	long id, folder_id, size;
-	char *uuid, *filename, *upload_status, *content_type, *url;
-	char *created_at, *updated_at, *unlock_at, *lock_at, thumbnail_url;
-	char *modified_at, *mime_class, *media_entry_id, *category;
-	byte locked, hidden, hidden_for_user, locked_for_user;
-};
-
-typedef struct listing Listing;
-
-int
-main()
+static char *read_dir(FILE *dir_dump, char *buf)
 {
-	FILE* infile = fopen("dump", "r");
-	if (infile == NULL) {
-		fprintf(stderr, "No dump provided. Run dump.sh.\n");
-	}
-	
-	char buf[bufsize];
-	char *contents = NULL;
+	static char *contents = NULL;
 	int read, size = 0;
-	while ((read = fread(buf, 1, bufsize, infile)) > 0) {
+	while ((read = fread(buf, 1, bufsize, dir_dump)) > 0) {
 		size += read;
 		contents = realloc(contents, size);
 		memmove(&contents[size-read], buf, read);
 	}
+	return contents;
+}
+
+const char *key_delim = "\":";
+/* Return character pointer to beginning of value. */
+char *
+getval(char *str, char *key)
+{
+	key = realloc(key, strlen(key) + strlen(key_delim) + 1);
+	strcat(key, key_delim);
+	char *rt = strstr(str, key);
+	if (rt == NULL) {
+		fprintf(stderr, "%s\n", "Invalid key.\n");
+	}
+	return rt;
+}
+
+/* Count directories. */
+int
+count_dir(char *contents)
+{
+	int count = 0;
+	char *p = contents;
+	while ((p = strstr(p, "\n")) != NULL) {
+		count++;
+		p = &p[1]; /* Increment p past the current '\n'. */
+	}
+	return count;
+}
+
+int
+main(int argc, char **argv)
+{
+
+	char *path = calloc(pathsize, sizeof(char));
+	path[0] = '/';
 
-	int i, j = 0;
-	char ch;
-	Listing *l = calloc(1, sizeof(Listing));
-	int l_size = sizeof(Listing);
-	for (i = 0; i < size; i++) {
-		ch = contents[i];
-		switch (ch) {
-		case '\n':
-			j++;
-			l_size += sizeof(Listing);
-			l = realloc(l, l_size);
-			break;
-		default:
-		}
+	chdir("dump");
+	FILE *root_stream = fopen("folders", "r");
+	if (root_stream == NULL) {
+		fprintf(stderr, "Generate a dump of your Canvas"
+			" account directory structure"
+			" using dump.sh.\n");
+		return 1;
 	}
-	printf("%d\n", l_size);
+
+	char buf[bufsize];
+	char *root_contents = read_dir(root_stream, buf);
+	int root_count = count_dir(root_contents);
+	printf("%d\n", root_count);
+
 	return 0;
 }