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57c30117c1
[atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c]
[auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c]
[auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
[auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c]
[buffer.c canohost.c channels.c cipher-3des1.c cipher-bf1.c]
[cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c compress.c]
[deattack.c dh.c dispatch.c fatal.c groupaccess.c hostfile.c kex.c]
[kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c]
[mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c]
[monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c]
[readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c]
[session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c]
[sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
[ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c]
Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that
Theo nuked - our scripts to sync -portable need them in the files
105 lines
2.2 KiB
C
105 lines
2.2 KiB
C
/* $OpenBSD: xmalloc.c,v 1.20 2006/03/25 13:17:03 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Versions of malloc and friends that check their results, and never return
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* failure (they call fatal if they encounter an error).
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#include "includes.h"
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#include "xmalloc.h"
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#include "log.h"
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void *
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xmalloc(size_t size)
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{
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void *ptr;
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if (size == 0)
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fatal("xmalloc: zero size");
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ptr = malloc(size);
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if (ptr == NULL)
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fatal("xmalloc: out of memory (allocating %lu bytes)", (u_long) size);
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return ptr;
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}
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void *
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xcalloc(size_t nmemb, size_t size)
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{
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void *ptr;
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if (nmemb && size && SIZE_T_MAX / nmemb < size)
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fatal("xcalloc: nmemb * size > SIZE_T_MAX");
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if (size == 0 || nmemb == 0)
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fatal("xcalloc: zero size");
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ptr = calloc(nmemb, size);
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if (ptr == NULL)
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fatal("xcalloc: out of memory (allocating %lu bytes)",
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(u_long)(size * nmemb));
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return ptr;
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}
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void *
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xrealloc(void *ptr, size_t nmemb, size_t size)
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{
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void *new_ptr;
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size_t new_size = nmemb * size;
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if (nmemb && size && SIZE_T_MAX / nmemb < size)
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fatal("xrealloc: nmemb * size > SIZE_T_MAX");
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if (new_size == 0)
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fatal("xrealloc: zero size");
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if (ptr == NULL)
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new_ptr = malloc(new_size);
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else
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new_ptr = realloc(ptr, new_size);
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if (new_ptr == NULL)
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fatal("xrealloc: out of memory (new_size %lu bytes)",
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(u_long) new_size);
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return new_ptr;
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}
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void
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xfree(void *ptr)
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{
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if (ptr == NULL)
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fatal("xfree: NULL pointer given as argument");
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free(ptr);
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}
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char *
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xstrdup(const char *str)
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{
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size_t len;
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char *cp;
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len = strlen(str) + 1;
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cp = xmalloc(len);
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strlcpy(cp, str, len);
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return cp;
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}
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int
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xasprintf(char **ret, const char *fmt, ...)
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{
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va_list ap;
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int i;
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va_start(ap, fmt);
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i = vasprintf(ret, fmt, ap);
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va_end(ap);
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if (i < 0 || *ret == NULL)
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fatal("xasprintf: could not allocate memory");
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return (i);
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}
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