6f57f7c601
All updates and fixes applied from upstream libtar as of March 1, 2016. Debug flag is disabled, however non-debug output now provides 1 line of useful output per object extracted. I've also merged some fixes from CyanogenMod's fork of libtar: From: Tom Marshall <tdm@cyngn.com> Date: Thu, 11 Feb 2016 16:24:40 -0800 Subject: libtar: Cleanup, secure, and extend numeric fields Commit: e18b457ea1cbf6be1adc3b75450ed1c737cd82ea From: Tom Marshall <tdm@cyngn.com> Date: Thu, 11 Feb 2016 12:49:30 -0800 Subject: libtar: Make file sizes 64-bit clean Commit: e628c2025549a24018bc568351465130a05daafb From: Tom Marshall <tdm@cyngn.com> Date: Thu, 17 Apr 2014 09:39:25 -0700 Subject: libtar: Add methods for in-memory files Commit: 8ec5627a8ff0a91724c6d5b344f0e887da922527 From: Tom Marshall <tdm@cyngn.com> Date: Wed, 2 Jul 2014 09:34:40 -0700 Subject: libtar: Fix hardlink extract Commit: 166d83a51e0c51abcea37694dbd7df92d03c1f56 From: philz-cwm6 <phytowardt@gmail.com> Date: Sat, 26 Apr 2014 01:11:35 +0200 Subject: libtar: Various bug fixes and enhancements Commit: a271d763e94235ccee9ecaabdb52bf4b9b2f8c06 (Some of this was not merged in, as better solutions were available from upstream libtar) From: Tom Marshall <tdm@cyngn.com> Date: Wed, 9 Apr 2014 09:35:54 -0700 Subject: libtar: Add const qualifiers to reduce compile warnings Commit: 0600afa19fe827d06d3fcf24a7aabd52dbf487b4 Change-Id: I6d008cb6fdf950f835bbed63aeb8727cc5c86083
133 lines
2.3 KiB
C
133 lines
2.3 KiB
C
/*
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** Copyright 1998-2003 University of Illinois Board of Trustees
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** Copyright 1998-2003 Mark D. Roth
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** All rights reserved.
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**
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** handle.c - libtar code for initializing a TAR handle
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**
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** Mark D. Roth <roth@uiuc.edu>
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** Campus Information Technologies and Educational Services
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** University of Illinois at Urbana-Champaign
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*/
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#include <internal.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#endif
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const char libtar_version[] = PACKAGE_VERSION;
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static tartype_t default_type = { open, close, read, write };
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static int
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tar_init(TAR **t, const char *pathname, tartype_t *type,
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int oflags, int mode, int options)
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{
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if ((oflags & O_ACCMODE) == O_RDWR)
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{
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errno = EINVAL;
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return -1;
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}
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*t = (TAR *)calloc(1, sizeof(TAR));
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if (*t == NULL)
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return -1;
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(*t)->pathname = pathname;
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(*t)->options = options;
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(*t)->type = (type ? type : &default_type);
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(*t)->oflags = oflags;
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if ((oflags & O_ACCMODE) == O_RDONLY)
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(*t)->h = libtar_hash_new(256,
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(libtar_hashfunc_t)path_hashfunc);
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else
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(*t)->h = libtar_hash_new(16, (libtar_hashfunc_t)dev_hash);
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if ((*t)->h == NULL)
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{
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free(*t);
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return -1;
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}
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return 0;
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}
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/* open a new tarfile handle */
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int
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tar_open(TAR **t, const char *pathname, tartype_t *type,
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int oflags, int mode, int options)
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{
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if (tar_init(t, pathname, type, oflags, mode, options) == -1)
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return -1;
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if ((options & TAR_NOOVERWRITE) && (oflags & O_CREAT))
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oflags |= O_EXCL;
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#ifdef O_BINARY
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oflags |= O_BINARY;
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#endif
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(*t)->fd = (*((*t)->type->openfunc))(pathname, oflags, mode);
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if ((*t)->fd == -1)
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{
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libtar_hash_free((*t)->h, NULL);
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free(*t);
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return -1;
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}
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return 0;
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}
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int
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tar_fdopen(TAR **t, int fd, const char *pathname, tartype_t *type,
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int oflags, int mode, int options)
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{
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if (tar_init(t, pathname, type, oflags, mode, options) == -1)
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return -1;
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(*t)->fd = fd;
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return 0;
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}
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int
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tar_fd(TAR *t)
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{
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return t->fd;
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}
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/* close tarfile handle */
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int
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tar_close(TAR *t)
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{
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int i;
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i = (*(t->type->closefunc))(t->fd);
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if (t->h != NULL)
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libtar_hash_free(t->h, ((t->oflags & O_ACCMODE) == O_RDONLY
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? free
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: (libtar_freefunc_t)tar_dev_free));
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if (t->th_pathname != NULL)
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free(t->th_pathname);
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free(t);
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return i;
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}
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