diff options
Diffstat (limited to 'hash.c')
| -rw-r--r-- | hash.c | 29 |
1 files changed, 14 insertions, 15 deletions
@@ -2139,29 +2139,28 @@ void ruby_setenv(const char *name, const char *value) { #if defined(_WIN32) - int len; - char *buf; + VALUE buf; + int failed = 0; if (strchr(name, '=')) { + fail: errno = EINVAL; rb_sys_fail("ruby_setenv"); } if (value) { - len = strlen(name) + 1 + strlen(value) + 1; - buf = ALLOCA_N(char, len); - snprintf(buf, len, "%s=%s", name, value); - putenv(buf); - - /* putenv() doesn't handle empty value */ - if (!*value) - SetEnvironmentVariable(name,value); + buf = rb_sprintf("%s=%s", name, value); } else { - len = strlen(name) + 1 + 1; - buf = ALLOCA_N(char, len); - snprintf(buf, len, "%s=", name); - putenv(buf); - SetEnvironmentVariable(name, 0); + buf = rb_sprintf("%s=", name); + } + failed = putenv(RSTRING_PTR(buf)); + /* even if putenv() failed, clean up and try to delete the + * variable from the system area. */ + rb_str_resize(buf, 0); + if (!value || !*value) { + /* putenv() doesn't handle empty value */ + if (!SetEnvironmentVariable(name,value)) goto fail; } + if (failed) goto fail; #elif defined(HAVE_SETENV) && defined(HAVE_UNSETENV) #undef setenv #undef unsetenv |