pw/pw_utils.c

   1 /*-
   2  * Copyright (C) 2015 Baptiste Daroussin <bapt@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer
  10  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/types.h>
  31 #include <sys/wait.h>
  32
  33 #include <err.h>
  34 #include <inttypes.h>
  35 #include <sysexits.h>
  36 #include <limits.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40
  41 #include "pw.h"
  42
  43 int
  44 pw_checkfd(char *nptr)
  45 {
  46         const char *errstr;
  47         int fd = -1;
  48
  49         if (strcmp(nptr, "-") == 0)
  50                 return '-';
  51         fd = strtonum(nptr, 0, INT_MAX, &errstr);
  52         if (errstr != NULL)
  53                 errx(EX_USAGE, "Bad file descriptor '%s': %s",
  54                     nptr, errstr);
  55         return (fd);
  56 }
  57
  58 uintmax_t
  59 pw_checkid(char *nptr, uintmax_t maxval)
  60 {
  61         const char *errstr = NULL;
  62         uintmax_t id;
  63
  64         id = strtounum(nptr, 0, maxval, &errstr);
  65         if (errstr)
  66                 errx(EX_USAGE, "Bad id '%s': %s", nptr, errstr);
  67         return (id);
  68 }
  69
  70 struct userconf *
  71 get_userconfig(const char *config)
  72 {
  73         char defaultcfg[MAXPATHLEN];
  74
  75         if (config != NULL)
  76                 return (read_userconfig(config));
  77         snprintf(defaultcfg, sizeof(defaultcfg), "%s/pw.conf", conf.etcpath);
  78         return (read_userconfig(defaultcfg));
  79 }
  80
  81 int
  82 nis_update(void) {
  83         pid_t pid;
  84         int i;
  85
  86         fflush(NULL);
  87         if ((pid = fork()) == -1) {
  88                 warn("fork()");
  89                 return (1);
  90         }
  91         if (pid == 0) {
  92                 execlp("/usr/bin/make", "make", "-C", "/var/yp/", (char*) NULL);
  93                 _exit(1);
  94         }
  95         waitpid(pid, &i, 0);
  96         if ((i = WEXITSTATUS(i)) != 0)
  97                 errx(i, "make exited with status %d", i);
  98         return (i);
  99 }