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w32: Fix spawn functions to support Windows Xp.

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Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2023-05-03 09:18:56 +09:00
parent b9e65faa5d
commit 768d365b0f
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GPG Key ID: 640114AF89DE6054
1 changed files with 67 additions and 36 deletions
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31
common/exechelp-w32.c
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@ -452,6 +452,30 @@ post_syscall (void)
} }
/*
* Check if STARTUPINFOEXW supports PROC_THREAD_ATTRIBUTE_HANDLE_LIST.
*/
static int
check_windows_version (void)
{
static int is_vista_or_later = -1;
OSVERSIONINFO osvi;
if (is_vista_or_later == -1)
{
memset (&osvi,0,sizeof(osvi));
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionEx (&osvi);
/* The feature is available on Vista or later. */
is_vista_or_later = (osvi.dwMajorVersion >= 6);
}
return is_vista_or_later;
}
static gpg_err_code_t static gpg_err_code_t
spawn_detached (const char *pgmname, char *cmdline, spawn_detached (const char *pgmname, char *cmdline,
void (*spawn_cb) (struct spawn_cb_arg *), void *spawn_cb_arg) void (*spawn_cb) (struct spawn_cb_arg *), void *spawn_cb_arg)
@ -505,6 +529,8 @@ spawn_detached (const char *pgmname, char *cmdline,
} }
if (j) if (j)
{
if (check_windows_version ())
{ {
InitializeProcThreadAttributeList (NULL, 1, 0, &attr_list_size); InitializeProcThreadAttributeList (NULL, 1, 0, &attr_list_size);
si.lpAttributeList = xtrymalloc (attr_list_size); si.lpAttributeList = xtrymalloc (attr_list_size);
@ -518,6 +544,8 @@ spawn_detached (const char *pgmname, char *cmdline,
UpdateProcThreadAttribute (si.lpAttributeList, 0, UpdateProcThreadAttribute (si.lpAttributeList, 0,
PROC_THREAD_ATTRIBUTE_HANDLE_LIST, PROC_THREAD_ATTRIBUTE_HANDLE_LIST,
hd, sizeof (HANDLE) * j, NULL, NULL); hd, sizeof (HANDLE) * j, NULL, NULL);
}
ask_inherit = TRUE; ask_inherit = TRUE;
} }
} }
@ -783,6 +811,8 @@ gnupg_process_spawn (const char *pgmname, const char *argv[],
} }
if (j) if (j)
{
if (check_windows_version ())
{ {
InitializeProcThreadAttributeList (NULL, 1, 0, &attr_list_size); InitializeProcThreadAttributeList (NULL, 1, 0, &attr_list_size);
si.lpAttributeList = xtrymalloc (attr_list_size); si.lpAttributeList = xtrymalloc (attr_list_size);
@ -812,6 +842,7 @@ gnupg_process_spawn (const char *pgmname, const char *argv[],
UpdateProcThreadAttribute (si.lpAttributeList, 0, UpdateProcThreadAttribute (si.lpAttributeList, 0,
PROC_THREAD_ATTRIBUTE_HANDLE_LIST, PROC_THREAD_ATTRIBUTE_HANDLE_LIST,
hd, sizeof (HANDLE) * j, NULL, NULL); hd, sizeof (HANDLE) * j, NULL, NULL);
}
ask_inherit = TRUE; ask_inherit = TRUE;
} }
} }