v1.15.0

* IDState cleaned up. Should work on all *NIXes now.
* Can now get IDState of arbitrary PID.
* Shuffled some env stuff around.

funcs_linux.go

@@ -1,77 +0,0 @@
-package sysutils
-
-import (
-	"fmt"
-	"os"
-	"strconv"
-	"strings"
-
-	"golang.org/x/sys/unix"
-	"r00t2.io/sysutils/envs"
-	"r00t2.io/sysutils/errs"
-)
-
-// GetIDState returns current ID/elevation information. An IDState should *not* be explicitly created/defined.
-func GetIDState() (ids IDState) {
-
-	var err error
-
-	ids.RUID, ids.EUID, ids.SUID = unix.Getresuid()
-	ids.uidsChecked = true
-	ids.RGID, ids.EGID, ids.SGID = unix.Getresgid()
-	ids.gidsChecked = true
-
-	ids.SudoEnvCmd = envs.HasEnv("SUDO_COMMAND")
-	ids.SudoEnvHome = envs.HasEnv("SUDO_HOME")
-	ids.SudoEnvGroup = envs.HasEnv("SUDO_GID")
-	ids.SudoEnvUser = envs.HasEnv("SUDO_UID") || envs.HasEnv("SUDO_USER")
-	if ids.SudoEnvCmd || ids.SudoEnvHome || ids.SudoEnvGroup || ids.SudoEnvUser {
-		ids.SudoEnvVars = true
-	}
-	ids.sudoChecked = true
-
-	// PID 1 will *always* be root, so that can return a false positive for sudo.
-	if os.Getppid() != 1 {
-		ids.stat = new(unix.Stat_t)
-		if err = unix.Stat(
-			fmt.Sprintf("/proc/%d/stat", os.Getppid()),
-			ids.stat,
-		); err != nil {
-			err = nil
-		} else {
-			ids.PPIDUidMatch = ids.RUID == int(ids.stat.Uid)
-			ids.ppidUidChecked = true
-			ids.PPIDGidMatch = ids.RGID == int(ids.stat.Gid)
-			ids.ppidGidChecked = true
-		}
-	} else {
-		ids.ppidUidChecked = true
-		ids.ppidGidChecked = true
-	}
-
-	return
-}
-
-// NsToInode splits a namespace identifier (e.g. `net:[12345]`) to its type (e.g. `net`) and inode (e.g. `12345`).
-func NsToInode(ns string) (typ string, inode uint64, err error) {
-
-	var fields []string
-
-	fields = strings.SplitN(ns, ":", 2)
-
-	if len(fields) != 2 {
-		err = errs.ErrInvalidNs
-		return
-	}
-
-	fields[1] = strings.TrimPrefix(fields[1], "[")
-	fields[1] = strings.TrimSuffix(fields[1], "]")
-
-	if inode, err = strconv.ParseUint(fields[1], 10, 64); err != nil {
-		return
-	}
-
-	typ = fields[0]
-
-	return
-}