X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust-fork%2Fustfork.c;h=983ed04f83e11316690430e494ffe4939a44bd9b;hb=fca2f1916cd9f22f410d8f22b9a0720c978c2025;hp=25f9d4cc04c31d2589e36d148684bf61d846c5aa;hpb=735bef4705cc42f25d26f25be09ba98f1efb8511;p=lttng-ust.git

diff --git a/liblttng-ust-fork/ustfork.c b/liblttng-ust-fork/ustfork.c
index 25f9d4cc..983ed04f 100644
--- a/liblttng-ust-fork/ustfork.c
+++ b/liblttng-ust-fork/ustfork.c
@@ -89,6 +89,156 @@ int daemon(int nochdir, int noclose)
 	return retval;
 }
 
+int setuid(uid_t uid)
+{
+	static int (*plibc_func)(uid_t uid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setuid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setuid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setuid */
+	retval = plibc_func(uid);
+	saved_errno = errno;
+
+	ust_after_setuid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int setgid(gid_t gid)
+{
+	static int (*plibc_func)(gid_t gid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setgid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setgid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setgid */
+	retval = plibc_func(gid);
+	saved_errno = errno;
+
+	ust_after_setgid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int seteuid(uid_t euid)
+{
+	static int (*plibc_func)(uid_t euid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "seteuid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"seteuid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real seteuid */
+	retval = plibc_func(euid);
+	saved_errno = errno;
+
+	ust_after_seteuid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int setegid(gid_t egid)
+{
+	static int (*plibc_func)(gid_t egid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setegid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setegid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setegid */
+	retval = plibc_func(egid);
+	saved_errno = errno;
+
+	ust_after_setegid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int setreuid(uid_t ruid, uid_t euid)
+{
+	static int (*plibc_func)(uid_t ruid, uid_t euid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setreuid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setreuid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setreuid */
+	retval = plibc_func(ruid, euid);
+	saved_errno = errno;
+
+	ust_after_setreuid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int setregid(gid_t rgid, gid_t egid)
+{
+	static int (*plibc_func)(gid_t rgid, gid_t egid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setregid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setregid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setregid */
+	retval = plibc_func(rgid, egid);
+	saved_errno = errno;
+
+	ust_after_setregid();
+
+	errno = saved_errno;
+	return retval;
+}
+
 #ifdef __linux__
 
 struct user_desc;
@@ -210,6 +360,56 @@ int unshare(int flags)
 	return retval;
 }
 
+int setresuid(uid_t ruid, uid_t euid, uid_t suid)
+{
+	static int (*plibc_func)(uid_t ruid, uid_t euid, uid_t suid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setresuid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setresuid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setresuid */
+	retval = plibc_func(ruid, euid, suid);
+	saved_errno = errno;
+
+	ust_after_setresuid();
+
+	errno = saved_errno;
+	return retval;
+}
+
+int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
+{
+	static int (*plibc_func)(gid_t rgid, gid_t egid, gid_t sgid) = NULL;
+	int retval;
+	int saved_errno;
+
+	if (plibc_func == NULL) {
+		plibc_func = dlsym(RTLD_NEXT, "setresgid");
+		if (plibc_func == NULL) {
+			fprintf(stderr, "libustfork: unable to find \"setresgid\" symbol\n");
+			errno = ENOSYS;
+			return -1;
+		}
+	}
+
+	/* Do the real setresgid */
+	retval = plibc_func(rgid, egid, sgid);
+	saved_errno = errno;
+
+	ust_after_setresgid();
+
+	errno = saved_errno;
+	return retval;
+}
+
 #elif defined (__FreeBSD__)
 
 pid_t rfork(int flags)