handle windows endline

awslabs · Oct 13, 2023 · 14fe544 · 14fe544
1 parent 2ce3be8
commit 14fe544
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/source/pem.c b/source/pem.c
@@ -232,11 +232,17 @@ int s_extract_header_type_cur(struct aws_byte_cursor cur, struct aws_byte_cursor
     }
 
     aws_byte_cursor_advance(&cur, s_begin_header_cur.len);
-    AWS_LOGF_ERROR(AWS_LS_IO_PEM, "Invalid PEM buffer: invalid end token %d:"PRInSTR, cur.len, AWS_BYTE_CURSOR_PRI(cur));
     aws_byte_cursor_advance(&cur, 1); // space after begin
-    AWS_LOGF_ERROR(AWS_LS_IO_PEM, "Invalid PEM buffer: invalid end token %d:"PRInSTR, cur.len, AWS_BYTE_CURSOR_PRI(cur));
+
+
+    /* handle CRLF on Windows by burning '\r' off the end of the buffer */
+    if (cur.len && (cur.ptr[cur.len- 1] == '\r')) {
+        cur.len--;
+    }
+
     struct aws_byte_cursor type_cur = aws_byte_cursor_advance(&cur, cur.len - s_delim_cur.len);
 
+
     if (!aws_byte_cursor_eq(&cur, &s_delim_cur)) {
         AWS_LOGF_ERROR(AWS_LS_IO_PEM, "Invalid PEM buffer: invalid end token %d:"PRInSTR, cur.len, AWS_BYTE_CURSOR_PRI(cur));
         return aws_raise_error(AWS_ERROR_PEM_MALFORMED);