Remove cmd/podman/user.go

None of the functions are used within the package, and it does not build
on non-Linux systems.

(Similar code continues to exist in pkg/chrootuser, and is unaffected.)

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

Closes: #1115
Approved by: rhatdan

1 files changed, 0 insertions, 121 deletions

diff --git a/cmd/podman/user.go b/cmd/podman/user.go
deleted file mode 100644
index 3e2e308c5..000000000
--- a/cmd/podman/user.go
+++ /dev/null
@@ -1,121 +0,0 @@
-package main
-
-// #include <sys/types.h>
-// #include <grp.h>
-// #include <pwd.h>
-// #include <stdlib.h>
-// #include <stdio.h>
-// #include <string.h>
-// typedef FILE * pFILE;
-import "C"
-
-import (
-	"fmt"
-	"os/user"
-	"path/filepath"
-	"sync"
-	"syscall"
-	"unsafe"
-
-	"github.com/pkg/errors"
-)
-
-func fopenContainerFile(rootdir, filename string) (C.pFILE, error) {
-	var st, lst syscall.Stat_t
-
-	ctrfile := filepath.Join(rootdir, filename)
-	cctrfile := C.CString(ctrfile)
-	defer C.free(unsafe.Pointer(cctrfile))
-	mode := C.CString("r")
-	defer C.free(unsafe.Pointer(mode))
-	f, err := C.fopen(cctrfile, mode)
-	if f == nil || err != nil {
-		return nil, errors.Wrapf(err, "error opening %q", ctrfile)
-	}
-	if err = syscall.Fstat(int(C.fileno(f)), &st); err != nil {
-		return nil, errors.Wrapf(err, "fstat(%q)", ctrfile)
-	}
-	if err = syscall.Lstat(ctrfile, &lst); err != nil {
-		return nil, errors.Wrapf(err, "lstat(%q)", ctrfile)
-	}
-	if st.Dev != lst.Dev || st.Ino != lst.Ino {
-		return nil, errors.Errorf("%q is not a regular file", ctrfile)
-	}
-	return f, nil
-}
-
-var (
-	lookupUser, lookupGroup sync.Mutex
-)
-
-func lookupUserInContainer(rootdir, username string) (uint64, uint64, error) {
-	name := C.CString(username)
-	defer C.free(unsafe.Pointer(name))
-
-	f, err := fopenContainerFile(rootdir, "/etc/passwd")
-	if err != nil {
-		return 0, 0, err
-	}
-	defer C.fclose(f)
-
-	lookupUser.Lock()
-	defer lookupUser.Unlock()
-
-	pwd := C.fgetpwent(f)
-	for pwd != nil {
-		if C.strcmp(pwd.pw_name, name) != 0 {
-			pwd = C.fgetpwent(f)
-			continue
-		}
-		return uint64(pwd.pw_uid), uint64(pwd.pw_gid), nil
-	}
-
-	return 0, 0, user.UnknownUserError(fmt.Sprintf("error looking up user %q", username))
-}
-
-func lookupGroupForUIDInContainer(rootdir string, userid uint64) (string, uint64, error) {
-	f, err := fopenContainerFile(rootdir, "/etc/passwd")
-	if err != nil {
-		return "", 0, err
-	}
-	defer C.fclose(f)
-
-	lookupUser.Lock()
-	defer lookupUser.Unlock()
-
-	pwd := C.fgetpwent(f)
-	for pwd != nil {
-		if uint64(pwd.pw_uid) != userid {
-			pwd = C.fgetpwent(f)
-			continue
-		}
-		return C.GoString(pwd.pw_name), uint64(pwd.pw_gid), nil
-	}
-
-	return "", 0, user.UnknownUserError(fmt.Sprintf("error looking up user with UID %d", userid))
-}
-
-func lookupGroupInContainer(rootdir, groupname string) (uint64, error) {
-	name := C.CString(groupname)
-	defer C.free(unsafe.Pointer(name))
-
-	f, err := fopenContainerFile(rootdir, "/etc/group")
-	if err != nil {
-		return 0, err
-	}
-	defer C.fclose(f)
-
-	lookupGroup.Lock()
-	defer lookupGroup.Unlock()
-
-	grp := C.fgetgrent(f)
-	for grp != nil {
-		if C.strcmp(grp.gr_name, name) != 0 {
-			grp = C.fgetgrent(f)
-			continue
-		}
-		return uint64(grp.gr_gid), nil
-	}
-
-	return 0, user.UnknownGroupError(fmt.Sprintf("error looking up group %q", groupname))
-}