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Move readlinkat fix into xwrap

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topjohnwu
2020-02-03 13:24:02 +08:00
parent 0ecfb63cd6
commit 84e4bd3d41
2 changed files with 11 additions and 7 deletions
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11
native/jni/utils/xwrap.cpp
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@ -285,13 +285,24 @@ ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz) {
}
ssize_t xreadlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
// readlinkat() may fail on x86 platform, returning random value
// instead of number of bytes placed in buf (length of link)
#if defined(__i386__) || defined(__x86_64__)
memset(buf, 0, bufsiz);
ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
if (ret == -1) {
PLOGE("readlinkat %s", pathname);
}
return ret;
#else
ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
if (ret < 0) {
PLOGE("readlinkat %s", pathname);
} else {
buf[ret] = '\0';
}
return ret;
#endif
}
int xsymlink(const char *target, const char *linkpath) {