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hash.c: utility functions from ruby_setenv

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* hash.c (invalid_envname, check_envname): extract utility functions
  from ruby_setenv().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42933 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-09-13 07:28:25 +00:00
parent 24833587d3
commit 85995e88d4
1 changed files with 28 additions and 12 deletions
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40
hash.c
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@ -2585,16 +2585,32 @@ getenvblocksize()
}
#endif
#if !defined(HAVE_SETENV) || !defined(HAVE_UNSETENV)
NORETURN(static void invalid_envname(const char *name));
static void
invalid_envname(const char *name)
{
rb_syserr_fail_str(EINVAL, rb_sprintf("ruby_setenv(%s)", name));
}
static const char *
check_envname(const char *name)
{
if (strchr(name, '=')) {
invalid_envname(name);
}
return name;
}
#endif
void
ruby_setenv(const char *name, const char *value)
{
#if defined(_WIN32)
VALUE buf;
int failed = 0;
if (strchr(name, '=')) {
fail:
rb_syserr_fail_str(EINVAL, rb_sprintf("ruby_setenv(%s)", name));
}
check_envname(name);
if (value) {
const char* p = GetEnvironmentStringsA();
if (!p) goto fail; /* never happen */
@ -2615,14 +2631,18 @@ ruby_setenv(const char *name, const char *value)
if (!SetEnvironmentVariable(name, value) &&
GetLastError() != ERROR_ENVVAR_NOT_FOUND) goto fail;
}
if (failed) goto fail;
if (failed) {
fail:
invalid_envname(name);
}
#elif defined(HAVE_SETENV) && defined(HAVE_UNSETENV)
#undef setenv
#undef unsetenv
if (value) {
if (setenv(name, value, 1))
rb_sys_fail_str(rb_sprintf("setenv(%s)", name));
} else {
}
else {
#ifdef VOID_UNSETENV
unsetenv(name);
#else
@ -2633,9 +2653,7 @@ ruby_setenv(const char *name, const char *value)
#elif defined __sun
size_t len;
char **env_ptr, *str;
if (strchr(name, '=')) {
rb_syserr_fail_str(EINVAL, rb_sprintf("ruby_setenv(%s)", name));
}
len = strlen(name);
for (env_ptr = GET_ENVIRON(environ); (str = *env_ptr) != 0; ++env_ptr) {
if (!strncmp(str, name, len) && str[len] == '=') {
@ -2653,9 +2671,7 @@ ruby_setenv(const char *name, const char *value)
#else /* WIN32 */
size_t len;
int i;
if (strchr(name, '=')) {
rb_syserr_fail_str(EINVAL, rb_sprintf("ruby_setenv(%s)", name));
}
i=envix(name); /* where does it go? */
if (environ == origenviron) { /* need we copy environment? */