| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "../libnetdata.h" |
| 4 | #include "spawn_library.h" |
| 5 | |
| 6 | BUFFER *argv_to_cmdline_buffer(const char **argv) { |
| 7 | BUFFER *wb = buffer_create(0, NULL); |
| 8 | |
| 9 | for(size_t i = 0; argv[i] ;i++) { |
| 10 | const char *s = argv[i]; |
| 11 | size_t len = strlen(s); |
| 12 | buffer_need_bytes(wb, len * 2 + 1); |
| 13 | |
| 14 | bool needs_quotes = false; |
| 15 | for(const char *c = s; !needs_quotes && *c ; c++) { |
| 16 | switch(*c) { |
| 17 | case ' ': |
| 18 | case '\v': |
| 19 | case '\t': |
| 20 | case '\n': |
| 21 | case '"': |
| 22 | needs_quotes = true; |
| 23 | break; |
| 24 | |
| 25 | default: |
| 26 | break; |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | if(needs_quotes && buffer_strlen(wb)) |
| 31 | buffer_strcat(wb, " \""); |
| 32 | else if(buffer_strlen(wb)) |
| 33 | buffer_putc(wb, ' '); |
| 34 | |
| 35 | for(const char *c = s; *c ; c++) { |
| 36 | switch(*c) { |
| 37 | case '"': |
| 38 | buffer_putc(wb, '\\'); |
| 39 | // fall through |
| 40 | |
| 41 | default: |
| 42 | buffer_putc(wb, *c); |
| 43 | break; |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | if(needs_quotes) |
| 48 | buffer_strcat(wb, "\""); |
| 49 | } |
| 50 | |
| 51 | return wb; |
| 52 | } |