NetBSD/usr.sbin/pkg_install/add/futil.c

152 lines
3.4 KiB
C

/* $NetBSD: futil.c,v 1.18 2005/12/06 01:07:30 ben Exp $ */
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <nbcompat.h>
#if HAVE_SYS_CDEFS_H
#include <sys/cdefs.h>
#endif
#ifndef lint
#if 0
static const char *rcsid = "from FreeBSD Id: futil.c,v 1.7 1997/10/08 07:45:39 charnier Exp";
#else
__RCSID("$NetBSD: futil.c,v 1.18 2005/12/06 01:07:30 ben Exp $");
#endif
#endif
/*
* FreeBSD install - a package for the installation and maintainance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Jordan K. Hubbard
* 18 July 1993
*
* Miscellaneous file access utilities.
*
*/
#if HAVE_ERR_H
#include <err.h>
#endif
#include "lib.h"
#include "add.h"
/*
* Assuming dir is a desired directory name, make it and all intervening
* directories necessary.
*/
int
make_hierarchy(char *dir)
{
char *cp1, *cp2;
char *argv[2];
argv[0] = dir;
argv[1] = NULL;
if (dir[0] == '/')
cp1 = cp2 = dir + 1;
else
cp1 = cp2 = dir;
while (cp2) {
if ((cp2 = strchr(cp1, '/')) != NULL)
*cp2 = '\0';
if (fexists(dir)) {
if (!(isdir(dir) || islinktodir(dir)))
return FAIL;
} else {
if (fexec("mkdir", dir, NULL))
return FAIL;
apply_perms(NULL, argv, 1);
}
/* Put it back */
if (cp2) {
*cp2 = '/';
cp1 = cp2 + 1;
}
}
return SUCCESS;
}
/*
* Using permission defaults, apply them as necessary
*/
void
apply_perms(char *dir, char **args, int nargs)
{
char *cd_to;
char owner_group[128];
const char **argv;
int i;
argv = malloc((nargs + 4) * sizeof(char *));
/*
* elements 0..2 are set later depending on Mode.
* args is a NULL terminated list of file names.
* by appending them to argv, argv becomes NULL terminated also.
*/
for (i = 0; i <= nargs; i++)
argv[i + 3] = args[i];
if (!dir || args[0][0] == '/') /* absolute path? */
cd_to = "/";
else
cd_to = dir;
if (Mode) {
argv[0] = CHMOD_CMD;
argv[1] = "-R";
argv[2] = Mode;
if (pfcexec(cd_to, argv[0], argv))
warnx("couldn't change modes of '%s' ... to '%s'",
args[0], Mode);
}
if (Owner != NULL && Group != NULL) {
if (snprintf(owner_group, sizeof(owner_group),
"%s:%s", Owner, Group) > sizeof(owner_group)) {
warnx("'%s:%s' is too long (%lu max)",
Owner, Group, (unsigned long) sizeof(owner_group));
free(argv);
return;
}
argv[0] = CHOWN_CMD;
argv[1] = "-R";
argv[2] = owner_group;
if (pfcexec(cd_to, argv[0], argv))
warnx("couldn't change owner/group of '%s' ... to '%s:%s'",
args[0], Owner, Group);
free(argv);
return;
}
if (Owner != NULL) {
argv[0] = CHOWN_CMD;
argv[1] = "-R";
argv[2] = Owner;
if (pfcexec(cd_to, argv[0], argv))
warnx("couldn't change owner of '%s' ... to '%s'",
args[0], Owner);
free(argv);
return;
}
if (Group != NULL) {
argv[0] = CHGRP_CMD;
argv[1] = "-R";
argv[2] = Group;
if (pfcexec(cd_to, argv[0], argv))
warnx("couldn't change group of '%s' ... to '%s'",
args[0], Group);
}
free(argv);
}