/* Compile with:
   gcc -g -std=c99 -Wall -Werror -o notmuchcrash -lnotmuch notmuchcrash.c
*/

#define _POSIX_C_SOURCE 200809L

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <notmuch.h>


#define DIE(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)


void add_new_email(notmuch_database_t* db,
                   char const* filename, char const* content) {
  char mail_path[64];
  strcpy(mail_path, notmuch_database_get_path(db));
  strcat(mail_path, filename);
  FILE* mf = fopen(mail_path, "w+");
  if (!mf) DIE("Failed to open mail file");
  if (fwrite(content, strlen(content), 1, mf) != 1)
    DIE("Failed to write mail");
  if (fclose(mf)) DIE("Failed to close file");
  if (notmuch_database_add_message(db, mail_path, NULL) !=
      NOTMUCH_STATUS_FILE_NOT_EMAIL)
    DIE("Something went wrong when adding the email");
}


int main() {

  /* Create new database. */
  char db_path[32];
  strcpy(db_path, "/tmp/notmuchcrash-XXXXXX");
  if (!mkdtemp(db_path)) DIE("Failed to create unique directory");
  notmuch_database_t* db;
  if (notmuch_database_create(db_path, &db)) DIE("Failed to create database");

  /* This doesn't have to be a valid email, it will crash either way. */
  char const* mail_data = "hello";

  /* First, try to add a file before closing. */
  add_new_email(db, "/new-mail-1@example.net:2,", mail_data);
  
  /* Close the database. */
  notmuch_database_close(db);

  /* Now try again. This will crash. */
  add_new_email(db, "/new-mail-2@example.net:2,", mail_data);
  
  return 0;
}