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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "internal.h"
#include "rccexternal.h"
#include "rcctranslate.h"
int rccTranslateInit() {
return 0;
}
void rccTranslateFree() {
}
rcc_translate rccTranslateOpen(const char *from, const char *to) {
#ifdef HAVE_LIBTRANSLATE
rcc_translate translate;
if ((!from)||(!to)||(!strcasecmp(from,to))) return NULL;
if ((strlen(from)!=2)||(strlen(to)!=2)) return NULL;
translate = (rcc_translate)malloc(sizeof(rcc_translate_s));
if (!translate) return NULL;
translate->sock = rccExternalConnect(RCC_EXTERNAL_MODULE_LIBRTRANSLATE);
if (translate->sock == -1) {
free(translate);
return NULL;
}
translate->remaining = 0;
translate->prefix.cmd.cmd = RCC_EXTERNAL_COMMAND_TRANSLATE;
translate->prefix.cmd.size = sizeof(rcc_translate_prefix_s);
memcpy(translate->prefix.from, from, 3*sizeof(char));
memcpy(translate->prefix.to, to, 3*sizeof(char));
rccTranslateSetTimeout(translate, RCC_TRANSLATE_DEFAULT_TIMEOUT);
return translate;
#else
return NULL;
#endif /* HAVE_LIBTRANSLATE */
}
void rccTranslateClose(rcc_translate translate) {
#ifdef HAVE_LIBTRANSLATE
if (!translate) return;
if (translate->sock != -1) rccExternalClose(translate->sock);
free(translate);
#endif /* HAVE_LIBTRANSLATE */
}
int rccTranslateSetTimeout(rcc_translate translate, unsigned long us) {
#ifdef HAVE_LIBTRANSLATE_TIMED_TRANSLATE
if (!translate) return -1;
translate->prefix.timeout = us;
return 0;
#else
return -1;
#endif /* HAVE_LIBTRANSLATE_TIMED_TRANSLATE */
}
char *rccTranslate(rcc_translate translate, const char *buf) {
#ifdef HAVE_LIBTRANSLATE
size_t i;
rcc_external_command_s resp;
size_t err, len;
char *buffer;
if ((!translate)||(!buf)) return NULL;
if (!strcmp(translate->prefix.to, "en")) {
for (i=0;buf[i];i++)
if ((unsigned char)buf[i]>0x7F) break;
if (!buf[i]) return NULL;
}
if (translate->sock == -1) {
translate->sock = rccExternalConnect(RCC_EXTERNAL_MODULE_LIBRTRANSLATE);
if (translate->sock == -1) return NULL;
} else if (translate->remaining) {
if (translate->remaining == (size_t)-1) {
err = rccExternalRead(translate->sock, (char*)&resp, sizeof(rcc_external_command_s), 0);
if (err) return NULL;
translate->remaining = resp.size;
}
buffer = (char*)malloc(translate->remaining*sizeof(char));
if (!buffer) {
rccExternalClose(translate->sock);
translate->sock = -1;
return NULL;
}
err = rccExternalRead(translate->sock, buffer, translate->remaining, 0);
free(buffer);
if (err) {
translate->remaining = err;
return NULL;
}
translate->remaining = 0;
}
len = strlen(buf);
translate->prefix.cmd.size = sizeof(rcc_translate_prefix_s) + len - sizeof(rcc_external_command_s);
err = rccExternalWrite(translate->sock, (char*)&translate->prefix, sizeof(rcc_translate_prefix_s) - 1, 0);
if (err) {
rccExternalClose(translate->sock);
translate->sock = -1;
return NULL;
}
err = rccExternalWrite(translate->sock, buf, len + 1, 0);
if (err) {
rccExternalClose(translate->sock);
translate->sock = -1;
return NULL;
}
err = rccExternalRead(translate->sock, (char*)&resp, sizeof(rcc_external_command_s), translate->prefix.timeout);
if (err) {
if (err == sizeof(rcc_external_command_s)) {
translate->remaining = (size_t)-1;
} else {
rccExternalClose(translate->sock);
translate->sock = -1;
}
return NULL;
}
if ((resp.cmd!=RCC_EXTERNAL_COMMAND_TRANSLATE)||(!resp.size)) return NULL;
buffer = (char*)malloc(resp.size*sizeof(char));
if (!buffer) {
rccExternalClose(translate->sock);
translate->sock = -1;
return NULL;
}
err = rccExternalRead(translate->sock, buffer, resp.size, 0);
if (err) {
translate->remaining = err;
free(buffer);
return NULL;
}
return buffer;
#else
return NULL;
#endif /* HAVE_LIBTRANSLATE */
}
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