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Makefile
(1.12 KB)
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Makefile.depend
(289 B)
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geom_ctl.c
(5.65 KB)
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geom_getxml.c
(2.58 KB)
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geom_stats.c
(4.07 KB)
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geom_util.c
(6.34 KB)
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geom_xml2tree.c
(12.64 KB)
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libgeom.3
(11.04 KB)
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libgeom.h
(4.47 KB)
Editing: geom_getxml.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2003 Poul-Henning Kamp * All rights reserved. * * 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. * 3. The names of the authors may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include <sys/types.h> #include <sys/sysctl.h> #include <errno.h> #include <stdlib.h> #include <string.h> #include "libgeom.h" /* * Amount of extra space we allocate to try and anticipate the size of * confxml. */ #define GEOM_GETXML_SLACK 4096 /* * Number of times to retry in the face of the size of confxml exceeding * that of our buffer. */ #define GEOM_GETXML_RETRIES 4 char * geom_getxml(void) { char *p; size_t l = 0; int mib[3]; size_t sizep; int retries; sizep = sizeof(mib) / sizeof(*mib); if (sysctlnametomib("kern.geom.confxml", mib, &sizep) != 0) return (NULL); if (sysctl(mib, sizep, NULL, &l, NULL, 0) != 0) return (NULL); l += GEOM_GETXML_SLACK; for (retries = 0; retries < GEOM_GETXML_RETRIES; retries++) { p = malloc(l); if (p == NULL) return (NULL); if (sysctl(mib, sizep, p, &l, NULL, 0) == 0) return (reallocf(p, strlen(p) + 1)); free(p); if (errno != ENOMEM) return (NULL); /* * Our buffer wasn't big enough. Make it bigger and * try again. */ l *= 2; } return (NULL); }
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