| 17 | namespace LIBC_NAMESPACE_DECL { |
| 18 | |
| 19 | LLVM_LIBC_FUNCTION(char *, getenv, (const char *name)) { |
| 20 | char **env_ptr = reinterpret_cast<char **>(LIBC_NAMESPACE::app.env_ptr); |
| 21 | |
| 22 | if (name == nullptr || env_ptr == nullptr) |
| 23 | return nullptr; |
| 24 | |
| 25 | LIBC_NAMESPACE::cpp::string_view env_var_name(name); |
| 26 | if (env_var_name.size() == 0) |
| 27 | return nullptr; |
| 28 | for (char **env = env_ptr; *env != nullptr; env++) { |
| 29 | LIBC_NAMESPACE::cpp::string_view cur(*env); |
| 30 | if (!cur.starts_with(env_var_name)) |
| 31 | continue; |
| 32 | |
| 33 | if (cur[env_var_name.size()] != '=') |
| 34 | continue; |
| 35 | |
| 36 | // Remove the name and the equals sign. |
| 37 | cur.remove_prefix(env_var_name.size() + 1); |
| 38 | // We know that data is null terminated, so this is safe. |
| 39 | return const_cast<char *>(cur.data()); |
| 40 | } |
| 41 | |
| 42 | return nullptr; |
| 43 | } |
| 44 | |
| 45 | } // namespace LIBC_NAMESPACE_DECL |
nothing calls this directly
no test coverage detected