| /* 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 <stdlib.h> |
| #include <string.h> |
| |
| extern void uv__set_process_title(const char* title); |
| |
| static void* args_mem; |
| |
| static struct { |
| char* str; |
| size_t len; |
| } process_title; |
| |
| |
| char** uv_setup_args(int argc, char** argv) { |
| char** new_argv; |
| size_t size; |
| char* s; |
| int i; |
| |
| if (argc <= 0) |
| return argv; |
| |
| /* Calculate how much memory we need for the argv strings. */ |
| size = 0; |
| for (i = 0; i < argc; i++) |
| size += strlen(argv[i]) + 1; |
| |
| process_title.str = argv[0]; |
| process_title.len = argv[argc - 1] + strlen(argv[argc - 1]) - argv[0]; |
| assert(process_title.len + 1 == size); /* argv memory should be adjacent. */ |
| |
| /* Add space for the argv pointers. */ |
| size += (argc + 1) * sizeof(char*); |
| |
| new_argv = malloc(size); |
| if (new_argv == NULL) |
| return argv; |
| args_mem = new_argv; |
| |
| /* Copy over the strings and set up the pointer table. */ |
| s = (char*) &new_argv[argc + 1]; |
| for (i = 0; i < argc; i++) { |
| size = strlen(argv[i]) + 1; |
| memcpy(s, argv[i], size); |
| new_argv[i] = s; |
| s += size; |
| } |
| new_argv[i] = NULL; |
| |
| return new_argv; |
| } |
| |
| |
| uv_err_t uv_set_process_title(const char* title) { |
| if (process_title.len == 0) |
| return uv_ok_; |
| |
| /* No need to terminate, byte after is always '\0'. */ |
| strncpy(process_title.str, title, process_title.len); |
| uv__set_process_title(title); |
| |
| return uv_ok_; |
| } |
| |
| |
| uv_err_t uv_get_process_title(char* buffer, size_t size) { |
| if (process_title.len > 0) |
| strncpy(buffer, process_title.str, size); |
| else if (size > 0) |
| buffer[0] = '\0'; |
| |
| return uv_ok_; |
| } |
| |
| |
| __attribute__((destructor)) |
| static void free_args_mem(void) { |
| free(args_mem); /* Keep valgrind happy. */ |
| args_mem = NULL; |
| } |