Last change
on this file since 857 was 821, checked in by Bruno Cornec, 18 years ago |
Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
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File size:
775 bytes
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Rev | Line | |
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[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Utility routines.
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include <unistd.h>
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| 12 | #include "libbb.h"
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| 13 |
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| 14 | /*
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| 15 | * Read all of the supplied buffer from a file.
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| 16 | * This does multiple reads as necessary.
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| 17 | * Returns the amount read, or -1 on an error.
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| 18 | * A short read is returned on an end of file.
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| 19 | */
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| 20 | ssize_t bb_full_read(int fd, void *buf, size_t len)
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| 21 | {
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| 22 | ssize_t cc;
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| 23 | ssize_t total;
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| 24 |
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| 25 | total = 0;
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| 26 |
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| 27 | while (len > 0) {
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| 28 | cc = safe_read(fd, buf, len);
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| 29 |
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| 30 | if (cc < 0)
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| 31 | return cc; /* read() returns -1 on failure. */
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| 32 |
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| 33 | if (cc == 0)
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| 34 | break;
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| 35 |
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| 36 | buf = ((char *)buf) + cc;
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| 37 | total += cc;
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| 38 | len -= cc;
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| 39 | }
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| 40 |
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| 41 | return total;
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| 42 | }
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