diff options
Diffstat (limited to 'Utilities/cmlibuv/src/unix/procfs-exepath.c')
-rw-r--r-- | Utilities/cmlibuv/src/unix/procfs-exepath.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Utilities/cmlibuv/src/unix/procfs-exepath.c b/Utilities/cmlibuv/src/unix/procfs-exepath.c new file mode 100644 index 0000000..00dc021 --- /dev/null +++ b/Utilities/cmlibuv/src/unix/procfs-exepath.c @@ -0,0 +1,45 @@ +/* Copyright libuv project 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 <stddef.h> +#include <unistd.h> + +int uv_exepath(char* buffer, size_t* size) { + ssize_t n; + + if (buffer == NULL || size == NULL || *size == 0) + return UV_EINVAL; + + n = *size - 1; + if (n > 0) + n = readlink("/proc/self/exe", buffer, n); + + if (n == -1) + return UV__ERR(errno); + + buffer[n] = '\0'; + *size = n; + + return 0; +} |