mirror of https://github.com/lukechilds/node.git
8 changed files with 164 additions and 124 deletions
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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to |
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* deal in the Software without restriction, including without limitation the |
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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* sell copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#include "uv.h" |
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#include "internal.h" |
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#include <stdlib.h> |
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#include <string.h> |
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#include <assert.h> |
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/* NOTE: FreeBSD is using it's own implementation of those functions */ |
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static struct { |
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char *str; |
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size_t len; |
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} process_title; |
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extern char** environ; |
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char** uv_setup_args(int argc, char** argv) { |
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char **new_argv; |
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char **new_env; |
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size_t size; |
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int envc; |
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char *s; |
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int i; |
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for (envc = 0; environ[envc]; envc++); |
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s = envc ? environ[envc - 1] : argv[argc - 1]; |
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process_title.str = argv[0]; |
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process_title.len = s + strlen(s) + 1 - argv[0]; |
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size = process_title.len; |
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size += (argc + 1) * sizeof(char **); |
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size += (envc + 1) * sizeof(char **); |
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if ((s = (char *) malloc(size)) == NULL) { |
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process_title.str = NULL; |
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process_title.len = 0; |
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return argv; |
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} |
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new_argv = (char **) s; |
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new_env = new_argv + argc + 1; |
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s = (char *) (new_env + envc + 1); |
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memcpy(s, process_title.str, process_title.len); |
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for (i = 0; i < argc; i++) |
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new_argv[i] = s + (argv[i] - argv[0]); |
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new_argv[argc] = NULL; |
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s += environ[0] - argv[0]; |
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for (i = 0; i < envc; i++) |
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new_env[i] = s + (environ[i] - environ[0]); |
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new_env[envc] = NULL; |
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environ = new_env; |
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return new_argv; |
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} |
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uv_err_t uv_set_process_title(const char* title) { |
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/* proctitle doesn't need to be zero terminated, last char is always '\0'.
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* Use strncpy(), it pads the remainder with nul bytes. Avoids garbage output |
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* on systems where `ps aux` prints the entire proctitle buffer, not just the |
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* characters up to the first '\0'. |
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*/ |
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if (process_title.len > 0) |
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strncpy(process_title.str, title, process_title.len - 1); |
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return uv_ok_; |
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} |
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uv_err_t uv_get_process_title(char* buffer, size_t size) { |
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uv_strlcpy(buffer, process_title.str ? process_title.str : "", size); |
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return uv_ok_; |
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} |
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