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mondain/j2c_string.c

Created January 14, 2020 15:11
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JNI example of a java string into a c string
Raw
j2c_string.c
/* Java String to C String */
static int jstr_to_cstr(JNIEnv *env, jstring jstr, char *cstr) {
jsize jlen, clen;
clen = env->GetStringUTFLength(jstr);
jlen = env->GetStringLength(jstr);
env->GetStringUTFRegion(jstr, 0, jlen, cstr);
if (env->ExceptionCheck()) {
return -EIO;
}
return 0;
}
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