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Add function lib/utilunix.c:my_systemv_flags()

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Signed-off-by: Slava Zanko <slavazanko@gmail.com>
This commit is contained in:
Slava Zanko 2013-01-10 16:22:59 +03:00
parent 08a825680b
commit 2406284762
2 changed files with 67 additions and 22 deletions
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1
lib/util.h
View File

@ -151,6 +151,7 @@ int close_error_pipe (int error, const char *text);
int my_system (int flags, const char *shell, const char *command);
int my_systeml (int flags, const char *shell, ...);
int my_systemv (const char *command, char *const argv[]);
int my_systemv_flags (int flags, const char *command, char *const argv[]);
void my_exit (int status);
void save_stop_handler (void);

88
lib/utilunix.c
View File

@ -202,6 +202,36 @@ my_system__restore_sigaction_handlers (my_system_sigactions_t * sigactions)
sigaction (SIGTSTP, &sigactions->stop, NULL);
}
/* --------------------------------------------------------------------------------------------- */
static GPtrArray *
my_system_make_arg_array (int flags, const char *shell, char **execute_name)
{
GPtrArray *args_array;
args_array = g_ptr_array_new ();
if ((flags & EXECUTE_AS_SHELL) != 0)
{
g_ptr_array_add (args_array, g_strdup (shell));
g_ptr_array_add (args_array, g_strdup ("-c"));
*execute_name = g_strdup (shell);
}
else
{
char *shell_token;
shell_token = shell != NULL ? strchr (shell, ' ') : NULL;
if (shell_token == NULL)
*execute_name = g_strdup (shell);
else
*execute_name = g_strndup (shell, (gsize) (shell_token - shell));
g_ptr_array_add (args_array, g_strdup (shell));
}
return args_array;
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
@ -316,10 +346,10 @@ my_system (int flags, const char *shell, const char *command)
* @return 0 if successfull, -1 otherwise
*/
int
my_systeml (int flags, const char *shell, ...)
{
char *execute_name;
GPtrArray *args_array;
int status = 0;
va_list vargs;
@ -327,33 +357,14 @@ my_systeml (int flags, const char *shell, ...)
args_array = g_ptr_array_new ();
if ((flags & EXECUTE_AS_SHELL) != 0)
{
g_ptr_array_add (args_array, g_strdup (shell));
g_ptr_array_add (args_array, g_strdup ("-c"));
execute_name = g_strdup (shell);
}
else
{
gchar *shell_token;
shell_token = shell != NULL ? strchr (shell, ' ') : NULL;
if (shell_token == NULL)
*execute_name = g_strdup (shell);
else
*execute_name = g_strndup (shell, (gsize) (shell_token - shell));
g_ptr_array_add (args_array, g_strdup (shell));
}
va_start (vargs, shell);
while ((one_arg = va_arg (vargs, char *)) != NULL)
g_ptr_array_add (args_array, g_strdup (one_arg));
g_ptr_array_add (args_array, one_arg);
va_end (vargs);
g_ptr_array_add (args_array, NULL);
status = my_systemv (execute_name, (char *const *) args_array->pdata);
status = my_systemv_flags (flags, shell, (char *const *) args_array->pdata);
g_free (execute_name);
g_ptr_array_free (args_array, TRUE);
return status;
@ -404,6 +415,39 @@ my_systemv (const char *command, char *const argv[])
return status;
}
/* --------------------------------------------------------------------------------------------- */
/**
* Call external programs with flags and with array of strings as parameters.
*
* @parameter flags addition conditions for running external programs.
* @parameter command shell (if flags contain EXECUTE_AS_SHELL), command to run otherwise.
* Shell (or command) will be found in paths described in PATH variable
* (if shell parameter doesn't begin from path delimiter)
* @parameter argv Array of strings (NULL-terminated) with parameters for command
* @return 0 if successfull, -1 otherwise
*/
int
my_systemv_flags (int flags, const char *command, char *const argv[])
{
char *execute_name = NULL;
GPtrArray *args_array;
int status = 0;
args_array = my_system_make_arg_array (flags, command, &execute_name);
for (; argv != NULL && *argv != NULL; argv++)
g_ptr_array_add (args_array, *argv);
g_ptr_array_add (args_array, NULL);
status = my_systemv (execute_name, (char *const *) args_array->pdata);
g_free (execute_name);
g_ptr_array_free (args_array, TRUE);
return status;
}
/* --------------------------------------------------------------------------------------------- */
/**