Mercurial > dovecot > core-2.2
view src/lib/read-full.c @ 23007:36e01285b5b8
lib: buffer - Improve header comment for buffer_insert() and buffer_delete().
author | Stephan Bosch <stephan.bosch@dovecot.fi> |
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date | Mon, 18 Mar 2019 00:52:37 +0100 |
parents | cb108f786fb4 |
children |
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/* Copyright (c) 2003-2018 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "read-full.h" #include <unistd.h> int read_full(int fd, void *data, size_t size) { ssize_t ret; while (size > 0) { ret = read(fd, data, size < SSIZE_T_MAX ? size : SSIZE_T_MAX); if (ret <= 0) return ret; data = PTR_OFFSET(data, ret); size -= ret; } return 1; } int pread_full(int fd, void *data, size_t size, off_t offset) { ssize_t ret; while (size > 0) { ret = pread(fd, data, size < SSIZE_T_MAX ? size : SSIZE_T_MAX, offset); if (ret <= 0) return ret; data = PTR_OFFSET(data, ret); size -= ret; offset += ret; } return 1; }