A high-performance MongoDB driver for C
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Latest commit 9cfbeae Jan 20, 2017 @ajdavis ajdavis update libbson
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.evergreen check if mongo-orchestration started mongod Jan 16, 2017
build fix mock server's timeout logic Jan 16, 2017
doc CDRIVER-1954 getters for findandmodify opts struct Jan 5, 2017
examples CDRIVER-1167 Format mongoc with out new clang-format config Dec 12, 2016
orchestration_configs CDRIVER-1988 test with IPv6 disabled Jan 11, 2017
src update libbson Jan 20, 2017
tests CDRIVER-1407 fix socket test on FreeBSD Jan 20, 2017
.clang-format CDRIVER-1167 Add clang-format file, and remove uncrustify Dec 12, 2016
.gitattributes CDRIVER-929 line-endings in test data files Oct 19, 2015
.gitignore CDRIVER-1915 mistakes in thread example Nov 14, 2016
.gitmodules Ignore stray files/changes in submodules Oct 6, 2015
CMakeLists.txt CDRIVER-1915 omit thread example on MSVC Nov 15, 2016
CONTRIBUTING.md CDRIVER-1347 Remove static symbol files Oct 7, 2016
COPYING doc: drop appendix from license. Mar 13, 2014
Makefile.am CDRIVER-1424 Fixed distcheck Nov 2, 2016
NEWS 1.5.2 Release Jan 11, 2017
README.rst Update README links to mongoc host Nov 30, 2016
VERSION_CURRENT set version to 1.6.0-dev Jan 11, 2017
VERSION_RELEASED 1.5.2 Release Jan 11, 2017
autogen.sh CDRIVER-1080: Warn when downloading non-releases from Github Apr 14, 2016
configure.ac CDRIVER-1701 Remove useless clutter from configure output Oct 28, 2016
valgrind.suppressions CDRIVER-1884 leaks in mock server tests Dec 10, 2016




mongo-c-driver is a client library written in C for MongoDB.

mongo-c-driver depends on Libbson. Libbson will automatically be built if you do not have it installed on your system.

Documentation / Support / Feedback

The documentation is available at http://mongoc.org/. For issues with, questions about, or feedback for libmongoc, please look into our support channels. Please do not email any of the libmongoc developers directly with issues or questions - you're more likely to get an answer on the mongodb-user list on Google Groups.

Bugs / Feature Requests

Think you’ve found a bug? Want to see a new feature in libmongoc? Please open a case in our issue management tool, JIRA:

Bug reports in JIRA for all driver projects (i.e. CDRIVER, CSHARP, JAVA) and the Core Server (i.e. SERVER) project are public.

How To Ask For Help

If you are having difficulty building the driver after reading the below instructions, please email the mongodb-user list to ask for help. Please include in your email all of the following information:

  • The version of the driver you are trying to build (branch or tag).
    • Examples: master branch, 1.2.1 tag
  • Host OS, version, and architecture.
    • Examples: Windows 8 64-bit x86, Ubuntu 12.04 32-bit x86, OS X Mavericks
  • C Compiler and version.
    • Examples: GCC 4.8.2, MSVC 2013 Express, clang 3.4, XCode 5
  • The output of ./autogen.sh or ./configure (depending on whether you are building from a repository checkout or from a tarball). The output starting from "libbson was configured with the following options" is sufficient.

  • The text of the error you encountered.

Failure to include the relevant information will result in additional round-trip communications to ascertain the necessary details, delaying a useful response. Here is a made-up example of a help request that provides the relevant information:

Hello, I'm trying to build the C driver with SSL, from mongo-c-driver-1.2.1.tar.gz. I'm on Ubuntu 14.04, 64-bit Intel, with gcc 4.8.2. I run configure like:

$ ./configure --enable-sasl=yes
checking for gcc... gcc
checking whether the C compiler works... yes

... SNIPPED OUTPUT, but when you ask for help, include full output without any omissions ...

checking for pkg-config... no
checking for SASL... no
checking for sasl_client_init in -lsasl2... no
checking for sasl_client_init in -lsasl... no
configure: error: You must install the Cyrus SASL libraries and development headers to enable SASL support.

Can you tell me what I need to install? Thanks!

Security Vulnerabilities

If you’ve identified a security vulnerability in a driver or any other MongoDB project, please report it according to the instructions here.

Building the Driver from Source

Detailed installation instructions are in the manual: http://mongoc.org/libmongoc/current/installing.html

From a tarball

Download the latest release from the release page, then:

$ tar xzf mongo-c-driver-$ver.tar.gz
$ cd mongo-c-driver-$ver
$ ./configure
$ make
$ sudo make install

To see all of the options available to you during configuration, run:

$ ./configure --help

To build on Windows Vista or newer with Visual Studio 2015, do the following:

cd mongo-c-driver-$ver
cd src\libbson
cmake -DCMAKE_INSTALL_PREFIX=C:\usr -G "Visual Studio 14 Win64" .
msbuild.exe ALL_BUILD.vcxproj
msbuild.exe INSTALL.vcxproj
cd ..\..
cmake -DCMAKE_INSTALL_PREFIX=C:\usr -DBSON_ROOT_DIR=C:\usr -G "Visual Studio 14 Win64" .
msbuild.exe ALL_BUILD.vcxproj
msbuild.exe INSTALL.vcxproj

Building From Git

You can use the following to checkout and build mongo-c-driver:

$ git clone https://github.com/mongodb/mongo-c-driver.git
$ cd mongo-c-driver
$ git checkout x.y.z  # To build a particular release
$ ./autogen.sh --with-libbson=bundled
$ make
$ sudo make install

Building from Git on using Visual Studio 2015:

git clone https://github.com/mongodb/mongo-c-driver.git
cd mongo-c-driver
git checkout x.y.z # for your specific release
git submodule init
git submodule update # libbson is a submodule
cd src\libbson
cmake -DCMAKE_INSTALL_PREFIX=C:\libmongoc -G "Visual Studio 14 Win64" .
msbuild.exe ALL_BUILD.vcxproj
msbuild.exe INSTALL.vcxproj
cd ..\..
cmake -DCMAKE_INSTALL_PREFIX=C:\libmongoc -DENABLE_SSL=WINDOWS -DBSON_ROOT_DIR=C:\libmongoc -G "Visual Studio 14 Win64" .
msbuild.exe ALL_BUILD.vcxproj
msbuild.exe INSTALL.vcxproj