diff --git a/Gopkg.lock b/Gopkg.lock index 4db9ca0436..b9deb339ea 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -196,24 +196,13 @@ revision = "485be65581341430f9106a194a98f0f2412245fb" [[projects]] - digest = "1:1b736b39b804e69b05f0acb12bbabf5b6f7b5760db959ce58d3f5e2919f7a2c2" + digest = "1:6f614c5193761d29b3184a170380672cafd025306261ce7810e2dd99907184c4" name = "github.com/coreos/go-systemd" - packages = [ - "dbus", - "util", - ] + packages = ["dbus"] pruneopts = "NUT" revision = "9002847aa1425fb6ac49077c0a630b3b67e0fbfd" version = "v18" -[[projects]] - digest = "1:6e2ff82d2fe11ee35ec8dceb4346b8144a761f1c8655592c4ebe99a92fcec327" - name = "github.com/coreos/pkg" - packages = ["dlopen"] - pruneopts = "NUT" - revision = "97fdf19511ea361ae1c100dd393cc47f8dcfa1e1" - version = "v4" - [[projects]] digest = "1:04054595e5c5a35d1553a7f3464d18577caf597445d643992998643df56d4afd" name = "github.com/cri-o/cri-o" @@ -438,7 +427,7 @@ "protocols/grpc", ] pruneopts = "NUT" - revision = "6182fa34c64ba6eb1b6028d8b6647a86844129c4" + revision = "1b3628c43660cb198ec055d78e5c7b03809cba60" [[projects]] digest = "1:58999a98719fddbac6303cb17e8d85b945f60b72f48e3a2df6b950b97fa926f1" diff --git a/Gopkg.toml b/Gopkg.toml index c3ec71d88a..e5d65bec20 100644 --- a/Gopkg.toml +++ b/Gopkg.toml @@ -52,7 +52,7 @@ [[constraint]] name = "github.com/kata-containers/agent" - revision = "6182fa34c64ba6eb1b6028d8b6647a86844129c4" + revision = "1b3628c43660cb198ec055d78e5c7b03809cba60" [[constraint]] name = "github.com/containerd/cri-containerd" diff --git a/vendor/github.com/coreos/go-systemd/util/util.go b/vendor/github.com/coreos/go-systemd/util/util.go deleted file mode 100644 index 7828ce6f04..0000000000 --- a/vendor/github.com/coreos/go-systemd/util/util.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2015 CoreOS, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package util contains utility functions related to systemd that applications -// can use to check things like whether systemd is running. Note that some of -// these functions attempt to manually load systemd libraries at runtime rather -// than linking against them. -package util - -import ( - "fmt" - "io/ioutil" - "os" - "strings" -) - -var ( - ErrNoCGO = fmt.Errorf("go-systemd built with CGO disabled") -) - -// GetRunningSlice attempts to retrieve the name of the systemd slice in which -// the current process is running. -// This function is a wrapper around the libsystemd C library; if it cannot be -// opened, an error is returned. -func GetRunningSlice() (string, error) { - return getRunningSlice() -} - -// RunningFromSystemService tries to detect whether the current process has -// been invoked from a system service. The condition for this is whether the -// process is _not_ a user process. User processes are those running in session -// scopes or under per-user `systemd --user` instances. -// -// To avoid false positives on systems without `pam_systemd` (which is -// responsible for creating user sessions), this function also uses a heuristic -// to detect whether it's being invoked from a session leader process. This is -// the case if the current process is executed directly from a service file -// (e.g. with `ExecStart=/this/cmd`). Note that this heuristic will fail if the -// command is instead launched in a subshell or similar so that it is not -// session leader (e.g. `ExecStart=/bin/bash -c "/this/cmd"`) -// -// This function is a wrapper around the libsystemd C library; if this is -// unable to successfully open a handle to the library for any reason (e.g. it -// cannot be found), an error will be returned. -func RunningFromSystemService() (bool, error) { - return runningFromSystemService() -} - -// CurrentUnitName attempts to retrieve the name of the systemd system unit -// from which the calling process has been invoked. It wraps the systemd -// `sd_pid_get_unit` call, with the same caveat: for processes not part of a -// systemd system unit, this function will return an error. -func CurrentUnitName() (string, error) { - return currentUnitName() -} - -// IsRunningSystemd checks whether the host was booted with systemd as its init -// system. This functions similarly to systemd's `sd_booted(3)`: internally, it -// checks whether /run/systemd/system/ exists and is a directory. -// http://www.freedesktop.org/software/systemd/man/sd_booted.html -func IsRunningSystemd() bool { - fi, err := os.Lstat("/run/systemd/system") - if err != nil { - return false - } - return fi.IsDir() -} - -// GetMachineID returns a host's 128-bit machine ID as a string. This functions -// similarly to systemd's `sd_id128_get_machine`: internally, it simply reads -// the contents of /etc/machine-id -// http://www.freedesktop.org/software/systemd/man/sd_id128_get_machine.html -func GetMachineID() (string, error) { - machineID, err := ioutil.ReadFile("/etc/machine-id") - if err != nil { - return "", fmt.Errorf("failed to read /etc/machine-id: %v", err) - } - return strings.TrimSpace(string(machineID)), nil -} diff --git a/vendor/github.com/coreos/go-systemd/util/util_cgo.go b/vendor/github.com/coreos/go-systemd/util/util_cgo.go deleted file mode 100644 index 6269bc7323..0000000000 --- a/vendor/github.com/coreos/go-systemd/util/util_cgo.go +++ /dev/null @@ -1,175 +0,0 @@ -// Copyright 2016 CoreOS, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build cgo - -package util - -// #include -// #include -// #include -// -// int -// my_sd_pid_get_owner_uid(void *f, pid_t pid, uid_t *uid) -// { -// int (*sd_pid_get_owner_uid)(pid_t, uid_t *); -// -// sd_pid_get_owner_uid = (int (*)(pid_t, uid_t *))f; -// return sd_pid_get_owner_uid(pid, uid); -// } -// -// int -// my_sd_pid_get_unit(void *f, pid_t pid, char **unit) -// { -// int (*sd_pid_get_unit)(pid_t, char **); -// -// sd_pid_get_unit = (int (*)(pid_t, char **))f; -// return sd_pid_get_unit(pid, unit); -// } -// -// int -// my_sd_pid_get_slice(void *f, pid_t pid, char **slice) -// { -// int (*sd_pid_get_slice)(pid_t, char **); -// -// sd_pid_get_slice = (int (*)(pid_t, char **))f; -// return sd_pid_get_slice(pid, slice); -// } -// -// int -// am_session_leader() -// { -// return (getsid(0) == getpid()); -// } -import "C" -import ( - "fmt" - "syscall" - "unsafe" - - "github.com/coreos/pkg/dlopen" -) - -var libsystemdNames = []string{ - // systemd < 209 - "libsystemd-login.so.0", - "libsystemd-login.so", - - // systemd >= 209 merged libsystemd-login into libsystemd proper - "libsystemd.so.0", - "libsystemd.so", -} - -func getRunningSlice() (slice string, err error) { - var h *dlopen.LibHandle - h, err = dlopen.GetHandle(libsystemdNames) - if err != nil { - return - } - defer func() { - if err1 := h.Close(); err1 != nil { - err = err1 - } - }() - - sd_pid_get_slice, err := h.GetSymbolPointer("sd_pid_get_slice") - if err != nil { - return - } - - var s string - sl := C.CString(s) - defer C.free(unsafe.Pointer(sl)) - - ret := C.my_sd_pid_get_slice(sd_pid_get_slice, 0, &sl) - if ret < 0 { - err = fmt.Errorf("error calling sd_pid_get_slice: %v", syscall.Errno(-ret)) - return - } - - return C.GoString(sl), nil -} - -func runningFromSystemService() (ret bool, err error) { - var h *dlopen.LibHandle - h, err = dlopen.GetHandle(libsystemdNames) - if err != nil { - return - } - defer func() { - if err1 := h.Close(); err1 != nil { - err = err1 - } - }() - - sd_pid_get_owner_uid, err := h.GetSymbolPointer("sd_pid_get_owner_uid") - if err != nil { - return - } - - var uid C.uid_t - errno := C.my_sd_pid_get_owner_uid(sd_pid_get_owner_uid, 0, &uid) - serrno := syscall.Errno(-errno) - // when we're running from a unit file, sd_pid_get_owner_uid returns - // ENOENT (systemd <220), ENXIO (systemd 220-223), or ENODATA - // (systemd >=234) - switch { - case errno >= 0: - ret = false - case serrno == syscall.ENOENT, serrno == syscall.ENXIO, serrno == syscall.ENODATA: - // Since the implementation of sessions in systemd relies on - // the `pam_systemd` module, using the sd_pid_get_owner_uid - // heuristic alone can result in false positives if that module - // (or PAM itself) is not present or properly configured on the - // system. As such, we also check if we're the session leader, - // which should be the case if we're invoked from a unit file, - // but not if e.g. we're invoked from the command line from a - // user's login session - ret = C.am_session_leader() == 1 - default: - err = fmt.Errorf("error calling sd_pid_get_owner_uid: %v", syscall.Errno(-errno)) - } - return -} - -func currentUnitName() (unit string, err error) { - var h *dlopen.LibHandle - h, err = dlopen.GetHandle(libsystemdNames) - if err != nil { - return - } - defer func() { - if err1 := h.Close(); err1 != nil { - err = err1 - } - }() - - sd_pid_get_unit, err := h.GetSymbolPointer("sd_pid_get_unit") - if err != nil { - return - } - - var s string - u := C.CString(s) - defer C.free(unsafe.Pointer(u)) - - ret := C.my_sd_pid_get_unit(sd_pid_get_unit, 0, &u) - if ret < 0 { - err = fmt.Errorf("error calling sd_pid_get_unit: %v", syscall.Errno(-ret)) - return - } - - unit = C.GoString(u) - return -} diff --git a/vendor/github.com/coreos/go-systemd/util/util_stub.go b/vendor/github.com/coreos/go-systemd/util/util_stub.go deleted file mode 100644 index 477589e122..0000000000 --- a/vendor/github.com/coreos/go-systemd/util/util_stub.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2016 CoreOS, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build !cgo - -package util - -func getRunningSlice() (string, error) { return "", ErrNoCGO } - -func runningFromSystemService() (bool, error) { return false, ErrNoCGO } - -func currentUnitName() (string, error) { return "", ErrNoCGO } diff --git a/vendor/github.com/coreos/pkg/LICENSE b/vendor/github.com/coreos/pkg/LICENSE deleted file mode 100644 index e06d208186..0000000000 --- a/vendor/github.com/coreos/pkg/LICENSE +++ /dev/null @@ -1,202 +0,0 @@ -Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. For the purposes of this definition, - "control" means (i) the power, direct or indirect, to cause the - direction or management of such entity, whether by contract or - otherwise, or (ii) ownership of fifty percent (50%) or more of the - outstanding shares, or (iii) beneficial ownership of such entity. - - "You" (or "Your") shall mean an individual or Legal Entity - exercising permissions granted by this License. - - "Source" form shall mean the preferred form for making modifications, - including but not limited to software source code, documentation - source, and configuration files. - - "Object" form shall mean any form resulting from mechanical - transformation or translation of a Source form, including but - not limited to compiled object code, generated documentation, - and conversions to other media types. - - "Work" shall mean the work of authorship, whether in Source or - Object form, made available under the License, as indicated by a - copyright notice that is included in or attached to the work - (an example is provided in the Appendix below). - - "Derivative Works" shall mean any work, whether in Source or Object - form, that is based on (or derived from) the Work and for which the - editorial revisions, annotations, elaborations, or other modifications - represent, as a whole, an original work of authorship. For the purposes - of this License, Derivative Works shall not include works that remain - separable from, or merely link (or bind by name) to the interfaces of, - the Work and Derivative Works thereof. - - "Contribution" shall mean any work of authorship, including - the original version of the Work and any modifications or additions - to that Work or Derivative Works thereof, that is intentionally - submitted to Licensor for inclusion in the Work by the copyright owner - or by an individual or Legal Entity authorized to submit on behalf of - the copyright owner. For the purposes of this definition, "submitted" - means any form of electronic, verbal, or written communication sent - to the Licensor or its representatives, including but not limited to - communication on electronic mailing lists, source code control systems, - and issue tracking systems that are managed by, or on behalf of, the - Licensor for the purpose of discussing and improving the Work, but - excluding communication that is conspicuously marked or otherwise - designated in writing by the copyright owner as "Not a Contribution." - - "Contributor" shall mean Licensor and any individual or Legal Entity - on behalf of whom a Contribution has been received by Licensor and - subsequently incorporated within the Work. - - 2. Grant of Copyright License. Subject to the terms and conditions of - this License, each Contributor hereby grants to You a perpetual, - worldwide, non-exclusive, no-charge, royalty-free, irrevocable - copyright license to reproduce, prepare Derivative Works of, - publicly display, publicly perform, sublicense, and distribute the - Work and such Derivative Works in Source or Object form. - - 3. Grant of Patent License. Subject to the terms and conditions of - this License, each Contributor hereby grants to You a perpetual, - worldwide, non-exclusive, no-charge, royalty-free, irrevocable - (except as stated in this section) patent license to make, have made, - use, offer to sell, sell, import, and otherwise transfer the Work, - where such license applies only to those patent claims licensable - by such Contributor that are necessarily infringed by their - Contribution(s) alone or by combination of their Contribution(s) - with the Work to which such Contribution(s) was submitted. If You - institute patent litigation against any entity (including a - cross-claim or counterclaim in a lawsuit) alleging that the Work - or a Contribution incorporated within the Work constitutes direct - or contributory patent infringement, then any patent licenses - granted to You under this License for that Work shall terminate - as of the date such litigation is filed. - - 4. Redistribution. You may reproduce and distribute copies of the - Work or Derivative Works thereof in any medium, with or without - modifications, and in Source or Object form, provided that You - meet the following conditions: - - (a) You must give any other recipients of the Work or - Derivative Works a copy of this License; and - - (b) You must cause any modified files to carry prominent notices - stating that You changed the files; and - - (c) You must retain, in the Source form of any Derivative Works - that You distribute, all copyright, patent, trademark, and - attribution notices from the Source form of the Work, - excluding those notices that do not pertain to any part of - the Derivative Works; and - - (d) If the Work includes a "NOTICE" text file as part of its - distribution, then any Derivative Works that You distribute must - include a readable copy of the attribution notices contained - within such NOTICE file, excluding those notices that do not - pertain to any part of the Derivative Works, in at least one - of the following places: within a NOTICE text file distributed - as part of the Derivative Works; within the Source form or - documentation, if provided along with the Derivative Works; or, - within a display generated by the Derivative Works, if and - wherever such third-party notices normally appear. The contents - of the NOTICE file are for informational purposes only and - do not modify the License. You may add Your own attribution - notices within Derivative Works that You distribute, alongside - or as an addendum to the NOTICE text from the Work, provided - that such additional attribution notices cannot be construed - as modifying the License. - - You may add Your own copyright statement to Your modifications and - may provide additional or different license terms and conditions - for use, reproduction, or distribution of Your modifications, or - for any such Derivative Works as a whole, provided Your use, - reproduction, and distribution of the Work otherwise complies with - the conditions stated in this License. - - 5. Submission of Contributions. Unless You explicitly state otherwise, - any Contribution intentionally submitted for inclusion in the Work - by You to the Licensor shall be under the terms and conditions of - this License, without any additional terms or conditions. - Notwithstanding the above, nothing herein shall supersede or modify - the terms of any separate license agreement you may have executed - with Licensor regarding such Contributions. - - 6. Trademarks. This License does not grant permission to use the trade - names, trademarks, service marks, or product names of the Licensor, - except as required for reasonable and customary use in describing the - origin of the Work and reproducing the content of the NOTICE file. - - 7. Disclaimer of Warranty. Unless required by applicable law or - agreed to in writing, Licensor provides the Work (and each - Contributor provides its Contributions) on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or - implied, including, without limitation, any warranties or conditions - of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A - PARTICULAR PURPOSE. You are solely responsible for determining the - appropriateness of using or redistributing the Work and assume any - risks associated with Your exercise of permissions under this License. - - 8. Limitation of Liability. In no event and under no legal theory, - whether in tort (including negligence), contract, or otherwise, - unless required by applicable law (such as deliberate and grossly - negligent acts) or agreed to in writing, shall any Contributor be - liable to You for damages, including any direct, indirect, special, - incidental, or consequential damages of any character arising as a - result of this License or out of the use or inability to use the - Work (including but not limited to damages for loss of goodwill, - work stoppage, computer failure or malfunction, or any and all - other commercial damages or losses), even if such Contributor - has been advised of the possibility of such damages. - - 9. Accepting Warranty or Additional Liability. While redistributing - the Work or Derivative Works thereof, You may choose to offer, - and charge a fee for, acceptance of support, warranty, indemnity, - or other liability obligations and/or rights consistent with this - License. However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - - END OF TERMS AND CONDITIONS - - APPENDIX: How to apply the Apache License to your work. - - To apply the Apache License to your work, attach the following - boilerplate notice, with the fields enclosed by brackets "{}" - replaced with your own identifying information. (Don't include - the brackets!) The text should be enclosed in the appropriate - comment syntax for the file format. We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright {yyyy} {name of copyright owner} - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - diff --git a/vendor/github.com/coreos/pkg/NOTICE b/vendor/github.com/coreos/pkg/NOTICE deleted file mode 100644 index b39ddfa5cb..0000000000 --- a/vendor/github.com/coreos/pkg/NOTICE +++ /dev/null @@ -1,5 +0,0 @@ -CoreOS Project -Copyright 2014 CoreOS, Inc - -This product includes software developed at CoreOS, Inc. -(http://www.coreos.com/). diff --git a/vendor/github.com/coreos/pkg/dlopen/dlopen.go b/vendor/github.com/coreos/pkg/dlopen/dlopen.go deleted file mode 100644 index 23774f612e..0000000000 --- a/vendor/github.com/coreos/pkg/dlopen/dlopen.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2016 CoreOS, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package dlopen provides some convenience functions to dlopen a library and -// get its symbols. -package dlopen - -// #cgo LDFLAGS: -ldl -// #include -// #include -import "C" -import ( - "errors" - "fmt" - "unsafe" -) - -var ErrSoNotFound = errors.New("unable to open a handle to the library") - -// LibHandle represents an open handle to a library (.so) -type LibHandle struct { - Handle unsafe.Pointer - Libname string -} - -// GetHandle tries to get a handle to a library (.so), attempting to access it -// by the names specified in libs and returning the first that is successfully -// opened. Callers are responsible for closing the handler. If no library can -// be successfully opened, an error is returned. -func GetHandle(libs []string) (*LibHandle, error) { - for _, name := range libs { - libname := C.CString(name) - defer C.free(unsafe.Pointer(libname)) - handle := C.dlopen(libname, C.RTLD_LAZY) - if handle != nil { - h := &LibHandle{ - Handle: handle, - Libname: name, - } - return h, nil - } - } - return nil, ErrSoNotFound -} - -// GetSymbolPointer takes a symbol name and returns a pointer to the symbol. -func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error) { - sym := C.CString(symbol) - defer C.free(unsafe.Pointer(sym)) - - C.dlerror() - p := C.dlsym(l.Handle, sym) - e := C.dlerror() - if e != nil { - return nil, fmt.Errorf("error resolving symbol %q: %v", symbol, errors.New(C.GoString(e))) - } - - return p, nil -} - -// Close closes a LibHandle. -func (l *LibHandle) Close() error { - C.dlerror() - C.dlclose(l.Handle) - e := C.dlerror() - if e != nil { - return fmt.Errorf("error closing %v: %v", l.Libname, errors.New(C.GoString(e))) - } - - return nil -} diff --git a/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go b/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go deleted file mode 100644 index 48a660104f..0000000000 --- a/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2015 CoreOS, Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// +build linux - -package dlopen - -// #include -// #include -// -// int -// my_strlen(void *f, const char *s) -// { -// size_t (*strlen)(const char *); -// -// strlen = (size_t (*)(const char *))f; -// return strlen(s); -// } -import "C" - -import ( - "fmt" - "unsafe" -) - -func strlen(libs []string, s string) (int, error) { - h, err := GetHandle(libs) - if err != nil { - return -1, fmt.Errorf(`couldn't get a handle to the library: %v`, err) - } - defer h.Close() - - f := "strlen" - cs := C.CString(s) - defer C.free(unsafe.Pointer(cs)) - - strlen, err := h.GetSymbolPointer(f) - if err != nil { - return -1, fmt.Errorf(`couldn't get symbol %q: %v`, f, err) - } - - len := C.my_strlen(strlen, cs) - - return int(len), nil -}