static void setup_log_stream(FILE **p_stream, const opt_tchar* stream_path)
{
if (stream_path && !(*p_stream = rsh_tfopen(stream_path, RSH_T("w"))) ) {
log_file_error(t2c(stream_path));
rsh_exit(2);
}
}
/**
* Compare paths.
*
* @param a the first path
* @param b the second path
*/
int are_paths_equal(const rsh_tchar* a, const rsh_tchar* b)
{
if (!a || !b) return 0;
if (a[0] == RSH_T('.') && IS_ANY_SLASH(a[1])) a += 2;
if (b[0] == RSH_T('.') && IS_ANY_SLASH(b[1])) b += 2;
for (; *a; ++a, ++b)
{
if (*a != *b && (!IS_ANY_SLASH(*b) || !IS_ANY_SLASH(*a)))
{
/* paths are different */
return 0;
}
}
/* check if both paths terminated */
return (*a == *b);
}
/**
* Parse command line arguments.
*
* @param cmd_line structure to store parsed options data
*/
static void parse_cmdline_options(struct parsed_cmd_line_t* cmd_line)
{
int argc;
int n_files = 0, b_opt_end = 0;
rsh_tchar** files;
rsh_tchar **parg, **end_arg;
parsed_option_t *next_opt;
#ifdef _WIN32
parg = cmd_line->warg = CommandLineToArgvW(GetCommandLineW(), &argc);
if( NULL == parg || argc < 1) {
die(_("CommandLineToArgvW failed\n"));
}
#else
argc = cmd_line->argc;
parg = cmd_line->argv;
#endif
/* allocate array for files */
files = (rsh_tchar**)rsh_malloc(argc * sizeof(rsh_tchar*));
end_arg = parg + argc;
/* loop by program arguments */
for(parg++; parg < end_arg; parg++)
{
/* if argument is not an option */
if((*parg)[0] != RSH_T('-') || (*parg)[1] == 0 || b_opt_end) {
/* it's a file, note that '-' is interpreted as stdin */
files[n_files++] = *parg;
continue;
}
assert((*parg)[0] == RSH_T('-') && (*parg)[1] != 0);
if((*parg)[1] == L'-' && (*parg)[2] == 0) {
b_opt_end = 1; /* string "--" means end of options */
continue;
}
/* check for "--" */
if((*parg)[1] == RSH_T('-')) {
cmdline_opt_t *t;
/* allocate parsed_option */
rsh_blocks_vector_add_empty(&cmd_line->options, 16, sizeof(parsed_option_t));
next_opt = rsh_blocks_vector_get_item(&cmd_line->options, cmd_line->options.size - 1, 16, parsed_option_t);
/* find the long option */
parse_long_option(next_opt, &parg);
t = next_opt->o;
/* process encoding and -o/-l options early */
if(is_output_modifier(t->type)) {
apply_option(&opt, next_opt);
}
} else if((*parg)[1] != 0) {
/* found '-'<some string> */
rsh_tchar* ptr;
/* parse short options. A string of several characters is interpreted
* as separate short options */
for(ptr = *parg + 1; *ptr; ptr++) {
cmdline_opt_t *t;
char ch = (char)*ptr;
#ifdef _WIN32
if(((unsigned)*ptr) >= 128) {
ptr[1] = 0;
fail_on_unknow_option(w2c(ptr));
}
#endif
/* allocate parsed_option */
rsh_blocks_vector_add_empty(&cmd_line->options, 16, sizeof(parsed_option_t));
next_opt = rsh_blocks_vector_get_item(&cmd_line->options, cmd_line->options.size - 1, 16, parsed_option_t);
next_opt->buf[0] = '-', next_opt->buf[1] = ch, next_opt->buf[2] = '\0';
next_opt->name = next_opt->buf;
next_opt->parameter = NULL;
/* search for the short option */
for(t = cmdline_opt; t->type && ch != t->short1 && ch != t->short2; t++);
if(!t->type) fail_on_unknow_option(next_opt->buf);
next_opt->o = t;
if(is_param_required(t->type)) {
next_opt->parameter = (ptr[1] ? ptr + 1 : *(++parg));
if(!next_opt->parameter) {
/* note: need to check for parameter here, for early -o/-l options processing */
log_error(_("argument is required for option %s\n"), next_opt->name);
rsh_exit(2);
}
}
/* process encoding and -o/-l options early */
if(is_output_modifier(t->type)) {
apply_option(&opt, next_opt);
}
if(next_opt->parameter) break; /* a parameter ends the short options string */
}
}
} /* for */
cmd_line->n_files = n_files;
cmd_line->files = files;
}
