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This commit is contained in:
Alan Evans
2019-07-25 15:29:31 -04:00
parent f9946083dd
commit e8e80e5d05
29 changed files with 853 additions and 222 deletions
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16
jni/utils/org_thoughtcrime_securesms_util_FileUtils.cpp
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@@ -3,6 +3,8 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <linux/memfd.h>
#include <syscall.h>
jint JNICALL Java_org_thoughtcrime_securesms_util_FileUtils_getFileDescriptorOwner
(JNIEnv *env, jclass clazz, jobject fileDescriptor)
@@ -28,4 +30,16 @@ jint JNICALL Java_org_thoughtcrime_securesms_util_FileUtils_getFileDescriptorOwn
}
return stat_struct.st_uid;
}
}
JNIEXPORT jint JNICALL Java_org_thoughtcrime_securesms_util_FileUtils_createMemoryFileDescriptor
(JNIEnv *env, jclass clazz, jstring jname)
{
const char *name = env->GetStringUTFChars(jname, NULL);
int fd = syscall(SYS_memfd_create, name, MFD_CLOEXEC);
env->ReleaseStringUTFChars(jname, name);
return fd;
}

8
jni/utils/org_thoughtcrime_securesms_util_FileUtils.h
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@@ -15,6 +15,14 @@ extern "C" {
JNIEXPORT jint JNICALL Java_org_thoughtcrime_securesms_util_FileUtils_getFileDescriptorOwner
(JNIEnv *, jclass, jobject);
/*
* Class: org_thoughtcrime_securesms_util_FileUtils
* Method: createMemoryFileDescriptor
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL Java_org_thoughtcrime_securesms_util_FileUtils_createMemoryFileDescriptor
(JNIEnv *, jclass, jstring);
#ifdef __cplusplus
}
#endif