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Fix broken getxattr calls

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topjohnwu 2019-12-05 17:34:50 -05:00
parent 291c718ba2
commit 11b7076a43
1 changed files with 3 additions and 3 deletions
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6
native/jni/utils/selinux.cpp
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@ -55,7 +55,7 @@ static int __setcon(const char *ctx) {
static int __getfilecon(const char *path, char **ctx) { static int __getfilecon(const char *path, char **ctx) {
char buf[1024]; char buf[1024];
int rc = syscall(__NR_getxattr, path, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1); int rc = syscall(__NR_getxattr, path, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1);
if (rc == 0) if (rc >= 0)
*ctx = strdup(buf); *ctx = strdup(buf);
return rc; return rc;
} }
@ -63,7 +63,7 @@ static int __getfilecon(const char *path, char **ctx) {
static int __lgetfilecon(const char *path, char **ctx) { static int __lgetfilecon(const char *path, char **ctx) {
char buf[1024]; char buf[1024];
int rc = syscall(__NR_lgetxattr, path, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1); int rc = syscall(__NR_lgetxattr, path, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1);
if (rc == 0) if (rc >= 0)
*ctx = strdup(buf); *ctx = strdup(buf);
return rc; return rc;
} }
@ -71,7 +71,7 @@ static int __lgetfilecon(const char *path, char **ctx) {
static int __fgetfilecon(int fd, char **ctx) { static int __fgetfilecon(int fd, char **ctx) {
char buf[1024]; char buf[1024];
int rc = syscall(__NR_fgetxattr, fd, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1); int rc = syscall(__NR_fgetxattr, fd, XATTR_NAME_SELINUX, buf, sizeof(buf) - 1);
if (rc == 0) if (rc >= 0)
*ctx = strdup(buf); *ctx = strdup(buf);
return rc; return rc;
} }