diff options
Diffstat (limited to 'third-party/libuv/src/unix/dl.c')
| -rw-r--r-- | third-party/libuv/src/unix/dl.c | 83 | 
1 files changed, 83 insertions, 0 deletions
| diff --git a/third-party/libuv/src/unix/dl.c b/third-party/libuv/src/unix/dl.c new file mode 100644 index 0000000000..cbffe4aa26 --- /dev/null +++ b/third-party/libuv/src/unix/dl.c @@ -0,0 +1,83 @@ +/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "uv.h" +#include "internal.h" + +#include <dlfcn.h> +#include <errno.h> +#include <string.h> +#include <locale.h> + +static int uv__dlerror(uv_lib_t* lib); + + +int uv_dlopen(const char* filename, uv_lib_t* lib) { +  dlerror(); /* Reset error status. */ +  lib->errmsg = NULL; +  lib->handle = dlopen(filename, RTLD_LAZY); +  return lib->handle ? 0 : uv__dlerror(lib); +} + + +void uv_dlclose(uv_lib_t* lib) { +  if (lib->errmsg) { +    free(lib->errmsg); +    lib->errmsg = NULL; +  } + +  if (lib->handle) { +    /* Ignore errors. No good way to signal them without leaking memory. */ +    dlclose(lib->handle); +    lib->handle = NULL; +  } +} + + +int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr) { +  dlerror(); /* Reset error status. */ +  *ptr = dlsym(lib->handle, name); +  return uv__dlerror(lib); +} + + +const char* uv_dlerror(uv_lib_t* lib) { +  return lib->errmsg ? lib->errmsg : "no error"; +} + + +static int uv__dlerror(uv_lib_t* lib) { +  const char* errmsg; + +  if (lib->errmsg) +    free(lib->errmsg); + +  errmsg = dlerror(); + +  if (errmsg) { +    lib->errmsg = strdup(errmsg); +    return -1; +  } +  else { +    lib->errmsg = NULL; +    return 0; +  } +} | 
