--- embedtools/src/imgupd.c 2014/02/05 12:37:31 1.1 +++ embedtools/src/imgupd.c 2014/02/05 15:44:06 1.2 @@ -0,0 +1,220 @@ +/************************************************************************* + * (C) 2014 AITNET - Sofia/Bulgaria - + * by Michael Pounov + * + * $Author: misho $ + * $Id: imgupd.c,v 1.2 2014/02/05 15:44:06 misho Exp $ + * + ************************************************************************* +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004 - 2014 + by Michael Pounov . All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +*/ +#include "global.h" + + +char imgName[PATH_MAX], imgFile[PATH_MAX]; +off_t imgSize, iSize; +int Verbose; +extern char compiled[], compiledby[], compilehost[]; + +static void +Usage() +{ + + printf( "IMGUPD is tool for management of images\n" + "=== %s === %s@%s ===\n\n" + " Syntax: imgupd [options] \n\n" + "\t-v\t\tVerbose ...\n" + "\t-t\t\tTruncate Storage file name\n" + "\t-s \tStorage size (required for stdin)\n" + "\t-f \tStorage file name\n" + "\n", compiled, compiledby, compilehost); +} + +static int +EmptyStore(int img) +{ + register int i; + u_char buf[IMGBUF_SIZE]; + ssize_t wlen; + + VERB(1) printf("Erase store %s\n", imgName); + + iSize = lseek(img, 0, SEEK_END); + if (iSize == -1) { + ESYSERR(0); + return -1; + } else + imgSize += E_ALIGN(iSize, IMGBUF_SIZE); + + memset(buf, 0, sizeof buf); + for (i = howmany(iSize, IMGBUF_SIZE); i < howmany(imgSize, IMGBUF_SIZE); i++) + if ((wlen = write(img, buf, sizeof buf)) == -1 || + wlen != sizeof buf) { + EERROR(EIO, "Error at chunk %d init %d bytes, should be %u\n", + i, wlen, sizeof buf); + return -1; + } else + VERB(1) printf("+Written chunk #%d\n", i); + + iSize = lseek(img, iSize, SEEK_SET); + return iSize; +} + +static int +FillStore(int img, int fd) +{ + register int i, j; + u_char buf[IMGBUF_SIZE]; + ssize_t rlen, wlen; + + VERB(1) printf("Fill store %s from image file %s\n", imgName, imgFile); + + for (j = 0, i = howmany(iSize, IMGBUF_SIZE); i < howmany(imgSize, IMGBUF_SIZE); + i++, j++) { + memset(buf, 0, sizeof buf); + rlen = read(fd, buf, sizeof buf); + if (rlen == -1) { + ESYSERR(0); + return -1; + } else if (!rlen) + break; + else + VERB(1) printf("+Readed %d bytes for chunk #%d\n", rlen, j); + + wlen = write(img, buf, rlen); + if (wlen == -1) { + ESYSERR(0); + return -1; + } else if (!wlen || wlen != rlen) { + EERROR(EIO, "Readed %d bytes are not equal to written %d bytes\n", + rlen, wlen); + } else + VERB(1) printf("+Written %d bytes at chunk #%d\n", wlen, i); + } + + return 0; +} + +int +main(int argc, char **argv) +{ + char ch; + int fd, img, tr = 0; + + while ((ch = getopt(argc, argv, "hvts:f:")) != -1) + switch (ch) { + case 'f': + strlcpy(imgName, optarg, sizeof imgName); + break; + case 's': + imgSize = strtoll(optarg, NULL, 0); + if (!imgSize) { + Usage(); + return 1; + } + break; + case 't': + tr = O_TRUNC; + break; + case 'v': + Verbose++; + break; + case 'h': + default: + Usage(); + return 1; + } + argc -= optind; + argv += optind; + + if (argc) { + strlcpy(imgFile, *argv, sizeof imgFile); + /* open image file */ + fd = open(imgFile, O_RDONLY); + if (fd == -1) { + ESYSERR(0); + return 2; + } else + iSize = lseek(fd, 0, SEEK_END); + if (!imgSize) + imgSize = E_ALIGN(iSize, IMGBUF_SIZE); + if (iSize == -1 || iSize > imgSize) { + close(fd); + EERROR(ENOSPC, "Error:: file size %llu is greater from storage size %llu\n", + iSize, imgSize); + return 2; + } else + lseek(fd, 0, SEEK_SET); + } else if (!imgSize) { + Usage(); + return 1; + } else + fd = STDIN_FILENO; + + VERB(1) printf("imgSize=%llu imgName=%s imgFile=%s\n", + imgSize, imgName, argc ? imgFile : ""); + + /* open storage device */ + img = open(imgName, O_RDWR | O_CREAT | tr, 0644); + if (img == -1) { + ESYSERR(0); + if (fd > 2) + close(fd); + return 3; + } + if (EmptyStore(img) == -1) { + if (fd > 2) + close(fd); + close(img); + unlink(imgName); + return 3; + } + + if (FillStore(img, fd) == -1) { + if (fd > 2) + close(fd); + close(img); + unlink(imgName); + return 4; + } + + close(img); + if (fd > 2) + close(fd); + return 0; +}