Mercurial > dovecot > core-2.2
view src/lib/read-full.c @ 22596:1a7bbda6284b
iostream-multiplex: Check return values in tests
author | Aki Tuomi <aki.tuomi@dovecot.fi> |
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date | Fri, 06 Oct 2017 08:52:18 +0300 |
parents | 2e2563132d5f |
children | cb108f786fb4 |
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/* Copyright (c) 2003-2017 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; }