| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "libnetdata/libnetdata.h" |
| 4 | |
| 5 | #ifndef HAVE_SETENV |
| 6 | int os_setenv(const char *name, const char *value, int overwrite) { |
| 7 | char *env_var; |
| 8 | int result; |
| 9 | |
| 10 | if (!overwrite) { |
| 11 | env_var = getenv(name); |
| 12 | if (env_var) return 0; // Already set |
| 13 | } |
| 14 | |
| 15 | size_t len = strlen(name) + strlen(value) + 2; // +2 for '=' and '\0' |
| 16 | env_var = malloc(len); |
| 17 | if (!env_var) return -1; // Allocation failure |
| 18 | snprintf(env_var, len, "%s=%s", name, value); |
| 19 | |
| 20 | result = putenv(env_var); |
| 21 | // free(env_var); // _putenv in Windows makes a copy of the string |
| 22 | return result; |
| 23 | } |
| 24 | |
| 25 | #endif |
| 26 | |
| 27 | void nd_setenv(const char *name, const char *value, int overwrite) { |
| 28 | #if defined(OS_WINDOWS) |
| 29 | if(overwrite) |
| 30 | SetEnvironmentVariable(name, value); |
| 31 | else { |
| 32 | char buf[1024]; |
| 33 | if(GetEnvironmentVariable(name, buf, sizeof(buf)) == 0) |
| 34 | SetEnvironmentVariable(name, value); |
| 35 | } |
| 36 | #endif |
| 37 | |
| 38 | #ifdef HAVE_SETENV |
| 39 | setenv(name, value, overwrite); |
| 40 | #else |
| 41 | os_setenv(name, value, overwite); |
| 42 | #endif |
| 43 | } |