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* libdpkg - main program for package management
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* fdio.c - safe file descriptor based input/output
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* Copyright © 2009-2010 Guillem Jover <guillem@debian.org>
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <dpkg/fdio.h>
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fd_read(int fd, void *buf, size_t len)
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n = read(fd, ptr + total, len);
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if (errno == EINTR || errno == EAGAIN)
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return total ? -total : n;
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fd_write(int fd, const void *buf, size_t len)
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const char *ptr = buf;
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n = write(fd, ptr + total, len);
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if (errno == EINTR || errno == EAGAIN)
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return total ? -total : n;