139 lines
2.8 KiB
C
139 lines
2.8 KiB
C
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/* @(#)getpwent.c 1.1 11/07/12 Copyright 2011 J. Schilling */
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/*
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* Passwd functions for platforms (like MINGW) that do not have them.
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*
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* Copyright (c) 2011 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#include <schily/stdio.h>
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#include <schily/pwd.h>
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#include <schily/standard.h>
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#include <schily/utypes.h>
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#include <schily/schily.h>
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#if !defined(HAVE_GETPWNAM) && !defined(HAVE_GETPWENT) && \
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!defined(HAVE_GETPWUID) && !defined(HAVE_SETPWENT) && \
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!defined(HAVE_ENDPWENT)
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LOCAL FILE *pwdf;
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LOCAL struct passwd pwd;
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LOCAL struct passwd rootpwd = { "root", "*", 0, 0, "", "/", "" };
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LOCAL char pwdbuf[128];
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LOCAL struct passwd *mkpwd __PR((char *arr[]));
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LOCAL struct passwd *findpwent __PR((const char *string, int field));
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EXPORT struct passwd *
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getpwent()
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{
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char *arr[7];
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if (pwdf == (FILE *)NULL) {
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pwdf = fileopen("/etc/passwd", "r");
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if (pwdf == (FILE *)NULL)
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return ((struct passwd *)0);
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}
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if (fgetline(pwdf, pwdbuf, sizeof (pwdbuf)) == EOF)
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return ((struct passwd *)0);
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breakline(pwdbuf, ':', arr, 7);
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return (mkpwd(arr));
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}
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EXPORT void
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setpwent()
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{
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if (pwdf == (FILE *)NULL) {
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pwdf = fileopen("/etc/passwd", "r");
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if (pwdf == (FILE *)NULL)
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return;
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}
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fileseek(pwdf, (off_t)0);
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}
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EXPORT void
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endpwent()
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{
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if (pwdf != (FILE *)NULL) {
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fclose(pwdf);
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pwdf = (FILE *)NULL;
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}
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}
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EXPORT struct passwd *
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getpwnam(name)
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const char *name;
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{
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setpwent();
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if (pwdf == (FILE *)NULL) {
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if (streql(rootpwd.pw_name, name))
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return (&rootpwd);
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return ((struct passwd *)0);
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}
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return (findpwent(name, 0));
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}
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EXPORT struct passwd *
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getpwuid(uid)
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uid_t uid;
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{
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char suid[32];
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setpwent();
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if (pwdf == (FILE *)NULL) {
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if (uid == 0)
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return (&rootpwd);
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return ((struct passwd *)0);
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}
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js_snprintf(suid, sizeof (suid), "%lld", (Llong)uid);
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return (findpwent(suid, 2));
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}
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LOCAL struct passwd *
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mkpwd(arr)
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char *arr[];
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{
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long l;
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pwd.pw_name = arr[0];
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pwd.pw_passwd = arr[1];
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(void) astolb(arr[2], &l, 10);
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pwd.pw_uid = l;
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(void) astolb(arr[3], &l, 10);
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pwd.pw_gid = l;
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pwd.pw_gecos = arr[4];
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pwd.pw_dir = arr[5];
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pwd.pw_shell = arr[6];
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return (&pwd);
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}
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LOCAL struct passwd *
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findpwent(string, field)
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const char *string;
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int field;
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{
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char *arr[7];
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for (;;) {
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if (fgetline(pwdf, pwdbuf, sizeof (pwdbuf)) == EOF)
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return ((struct passwd *)0);
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breakline(pwdbuf, ':', arr, 7);
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if (streql(string, arr[field]))
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return (mkpwd(arr));
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}
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}
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#endif
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