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Add sbin overlay to system-as-root

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topjohnwu
2019-06-24 01:21:33 -07:00
parent 9ec8bc2166
commit a1a1ac0bbb
6 changed files with 100 additions and 40 deletions
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5
native/jni/utils/include/missing.h
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@@ -9,6 +9,7 @@
#define setns __setns
#define unshare __unshare
#define accept4 __accept4
#define dup3 __dup3
#define readlinkat __readlinkat
#define symlinkat __symlinkat
#define linkat __linkat
@@ -39,6 +40,10 @@ static inline int __accept4(int sockfd, struct sockaddr *addr, socklen_t *addrle
return syscall(__NR_accept4, sockfd, addr, addrlen, flags);
}
static inline int __dup3(int oldfd, int newfd, int flags) {
return syscall(__NR_dup3, oldfd, newfd, flags);
}
static inline ssize_t __readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
return syscall(__NR_readlinkat, dirfd, pathname, buf, bufsiz);
}

2
native/jni/utils/xwrap.cpp
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@@ -278,7 +278,7 @@ int xdup2(int oldfd, int newfd) {
}
int xdup3(int oldfd, int newfd, int flags) {
int ret = (int) syscall(__NR_dup3, oldfd, newfd, flags);
int ret = dup3(oldfd, newfd, flags);
if (ret == -1) {
PLOGE("dup3");
}