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* environ.cc (win_env::add_cache): Set the Windows environment variable

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using wide chars to make sure native chars don't get scrambled.
	* environ.h (build_env): Fix formatting in declaration.
	* pinfo.cc (pinfo::status_exit): Handle STATUS_NO_MEMORY.  Explain why.
This commit is contained in:
Corinna Vinschen
2013-05-24 13:32:10 +00:00
parent 592989d65c
commit 1a5dfe8ae0
4 changed files with 26 additions and 6 deletions
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7
winsup/cygwin/ChangeLog
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@@ -1,3 +1,10 @@
2013-05-24 Corinna Vinschen <corinna@vinschen.de>
* environ.cc (win_env::add_cache): Set the Windows environment variable
using wide chars to make sure native chars don't get scrambled.
* environ.h (build_env): Fix formatting in declaration.
* pinfo.cc (pinfo::status_exit): Handle STATUS_NO_MEMORY. Explain why.
2013-05-24 Corinna Vinschen <corinna@vinschen.de>
* fork.cc (frok::parent): Always set CREATE_UNICODE_ENVIRONMENT flag.

10
winsup/cygwin/environ.cc
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@@ -386,11 +386,11 @@ win_env::add_cache (const char *in_posix, const char *in_native)
MALLOC_CHECK;
if (immediate && cygwin_finished_initializing)
{
char s[namelen];
size_t n = namelen - 1;
memcpy (s, name, n);
s[n] = '\0';
SetEnvironmentVariable (s, native + namelen);
wchar_t s[sys_mbstowcs (NULL, 0, native) + 1];
sys_mbstowcs (s, sizeof s, native);
/* Hack. Relies on affected variables only having ASCII names. */
s[namelen - 1] = L'\0';
SetEnvironmentVariableW (s, s + namelen);
}
debug_printf ("posix %s", posix);
debug_printf ("native %s", native);

2
winsup/cygwin/environ.h
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@@ -45,6 +45,6 @@ extern "C" char **__cygwin_environ, ***main_environ;
extern "C" char __stdcall **cur_environ ();
#endif
char ** __reg3 build_env (const char * const *envp, PWCHAR &envblock,
int &envc, bool need_envblock);
int &envc, bool need_envblock);
#define ENV_CVT -1

13
winsup/cygwin/pinfo.cc
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@@ -144,6 +144,19 @@ pinfo::status_exit (DWORD x)
case STATUS_ILLEGAL_INSTRUCTION:
x = SIGILL;
break;
case STATUS_NO_MEMORY:
/* If the PATH environment variable is longer than about 30K and the full
Windows environment is > 32K, startup of an exec'ed process fails with
STATUS_NO_MEMORY. This happens with all Cygwin executables, as well
as, for instance, notepad, but it does not happen with CMD for some
reason. This occurs at a point where there's no return to the exec'ing
parent process, so we have to find some way to inform the user what
happened.
FIXME: For now, just return with SIGBUS set. Maybe it's better to add
a lengthy small_printf instead. */
x = SIGBUS;
break;
default:
debug_printf ("*** STATUS_%y\n", x);
x = 127 << 8;