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1.2 misho 1: /*************************************************************************
2: * (C) 2014 AITNET - Sofia/Bulgaria - <office@aitbg.com>
3: * by Michael Pounov <misho@aitbg.com>
4: *
5: * $Author: misho $
1.6.2.3 ! misho 6: * $Id: imgupd.c,v 1.6.2.2 2014/02/06 00:16:05 misho Exp $
1.2 misho 7: *
8: *************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004 - 2014
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: char imgName[PATH_MAX], imgFile[PATH_MAX];
1.6.2.1 misho 50: off_t imgSize, iSize, fromBegin;
1.4 misho 51: int Verbose, bufSize = IMGBUF_SIZE;
1.2 misho 52: extern char compiled[], compiledby[], compilehost[];
53:
54: static void
55: Usage()
56: {
57:
58: printf( "IMGUPD is tool for management of images\n"
59: "=== %s === %s@%s ===\n\n"
1.3 misho 60: " Syntax: imgupd [options] [image_file]\n\n"
1.2 misho 61: "\t-v\t\tVerbose ...\n"
1.4 misho 62: "\t-R\t\tReboot system after complete\n"
63: "\t-p\t\tPipe suitable transfer on little chunks\n"
1.6.2.1 misho 64: "\t-i\t\tStart fill storage from begin\n"
1.3 misho 65: "\t-g\t\tGet image from Storage\n"
1.2 misho 66: "\t-t\t\tTruncate Storage file name\n"
67: "\t-s <size>\tStorage size (required for stdin)\n"
68: "\t-f <devfile>\tStorage file name\n"
69: "\n", compiled, compiledby, compilehost);
70: }
71:
72: static int
73: EmptyStore(int img)
74: {
75: register int i;
1.4 misho 76: u_char buf[bufSize];
1.2 misho 77: ssize_t wlen;
78:
79: VERB(1) printf("Erase store %s\n", imgName);
80:
1.6.2.1 misho 81: if (!fromBegin) {
82: iSize = lseek(img, 0, SEEK_END);
83: if (iSize == -1) {
84: ESYSERR(0);
85: return -1;
86: } else
87: imgSize += E_ALIGN(iSize, bufSize);
1.2 misho 88: } else
1.6.2.1 misho 89: iSize ^= iSize;
1.2 misho 90:
91: memset(buf, 0, sizeof buf);
1.4 misho 92: for (i = howmany(iSize, bufSize); i < howmany(imgSize, bufSize); i++)
1.5 misho 93: if ((wlen = write(img, buf, bufSize)) == -1 ||
94: (wlen && wlen != bufSize)) {
95: EERROR(EIO, "Error at chunk %d init %d bytes, "
96: "should be %u\n", i, wlen, bufSize);
1.2 misho 97: return -1;
98: } else
99: VERB(1) printf("+Written chunk #%d\n", i);
100:
101: iSize = lseek(img, iSize, SEEK_SET);
102: return iSize;
103: }
104:
105: static int
106: FillStore(int img, int fd)
107: {
108: register int i, j;
1.4 misho 109: u_char buf[bufSize];
1.2 misho 110: ssize_t rlen, wlen;
111:
112: VERB(1) printf("Fill store %s from image file %s\n", imgName, imgFile);
113:
1.4 misho 114: for (j = 0, i = howmany(iSize, bufSize); i < howmany(imgSize, bufSize);
1.2 misho 115: i++, j++) {
116: memset(buf, 0, sizeof buf);
1.5 misho 117: rlen = read(fd, buf, bufSize);
1.2 misho 118: if (rlen == -1) {
119: ESYSERR(0);
120: return -1;
121: } else if (!rlen)
122: break;
123: else
124: VERB(1) printf("+Readed %d bytes for chunk #%d\n", rlen, j);
125:
1.6.2.3 ! misho 126: wlen = write(img, buf, bufSize);
1.2 misho 127: if (wlen == -1) {
128: ESYSERR(0);
129: return -1;
1.6.2.3 ! misho 130: } else if (wlen && wlen != bufSize) {
! 131: EERROR(EIO, "Error at chunk %d written %d bytes, "
! 132: "should be %u\n", i, wlen, bufSize);
1.2 misho 133: } else
134: VERB(1) printf("+Written %d bytes at chunk #%d\n", wlen, i);
135: }
136:
137: return 0;
138: }
139:
140: int
141: main(int argc, char **argv)
142: {
1.4 misho 143: char ch, m = 0, R = 0;
1.2 misho 144: int fd, img, tr = 0;
145:
1.6.2.1 misho 146: while ((ch = getopt(argc, argv, "hvRipgts:f:")) != -1)
1.2 misho 147: switch (ch) {
148: case 'f':
149: strlcpy(imgName, optarg, sizeof imgName);
150: break;
151: case 's':
152: imgSize = strtoll(optarg, NULL, 0);
153: if (!imgSize) {
154: Usage();
155: return 1;
156: }
157: break;
158: case 't':
159: tr = O_TRUNC;
160: break;
1.4 misho 161: case 'p':
162: bufSize = IMGBUF_SIZE2;
163: break;
1.6.2.2 misho 164: case 'g':
165: m = 1;
1.6.2.1 misho 166: case 'i':
167: fromBegin = 1;
168: break;
1.4 misho 169: case 'R':
170: R = 1;
171: break;
1.2 misho 172: case 'v':
173: Verbose++;
174: break;
175: case 'h':
176: default:
177: Usage();
178: return 1;
179: }
180: argc -= optind;
181: argv += optind;
182:
1.3 misho 183: if (!m) {
184: if (argc) {
185: strlcpy(imgFile, *argv, sizeof imgFile);
186: /* open image file */
187: fd = open(imgFile, O_RDONLY);
188: if (fd == -1) {
189: ESYSERR(0);
190: return 2;
191: } else
192: iSize = lseek(fd, 0, SEEK_END);
193: if (!imgSize)
1.4 misho 194: imgSize = E_ALIGN(iSize, bufSize);
1.3 misho 195: if (iSize == -1 || iSize > imgSize) {
196: close(fd);
197: EERROR(ENOSPC, "Error:: file size %llu is "
198: "greater from storage size %llu\n",
199: iSize, imgSize);
200: return 2;
201: } else
202: lseek(fd, 0, SEEK_SET);
203: } else if (!imgSize) {
204: Usage();
205: return 1;
206: } else
207: fd = STDIN_FILENO;
208: } else { /* GET */
209: if (argc) {
210: strlcpy(imgFile, *argv, sizeof imgFile);
211: /* open image file */
212: fd = open(imgFile, O_WRONLY | O_TRUNC | O_CREAT, 0644);
213: if (fd == -1) {
214: ESYSERR(0);
215: return 2;
216: }
217: } else if (!imgSize) {
218: Usage();
219: return 1;
220: } else
221: fd = STDOUT_FILENO;
222: }
223:
224: VERB(1) printf("imgSize=%llu imgName=%s imgFile=%s\n",
225: imgSize, imgName, argc ? imgFile : "<stdin>");
226:
227: if (!m) {
228: /* open storage device */
229: img = open(imgName, O_RDWR | O_CREAT | tr, 0644);
230: if (img == -1) {
1.2 misho 231: ESYSERR(0);
1.3 misho 232: if (fd > 2)
233: close(fd);
234: return 3;
235: }
236: } else { /* GET */
237: /* open storage device */
238: img = open(imgName, O_RDONLY);
239: if (img == -1) {
240: ESYSERR(0);
241: if (fd > 2)
242: close(fd);
243: return 3;
1.2 misho 244: } else
1.3 misho 245: iSize = lseek(img, 0, SEEK_END);
1.2 misho 246: if (!imgSize)
1.4 misho 247: imgSize = E_ALIGN(iSize, bufSize);
1.2 misho 248: if (iSize == -1 || iSize > imgSize) {
1.3 misho 249: if (fd > 2)
250: close(fd);
251: close(img);
252: EERROR(ENOSPC, "Error:: storage size %llu is "
253: "greater from file size %llu\n",
1.2 misho 254: iSize, imgSize);
1.3 misho 255: return 3;
1.2 misho 256: } else
1.3 misho 257: lseek(img, 0, SEEK_SET);
1.2 misho 258: }
259:
1.3 misho 260: if (!m) {
261: if (EmptyStore(img) == -1) {
262: if (fd > 2)
263: close(fd);
264: close(img);
265: return 3;
266: }
267: if (FillStore(img, fd) == -1) {
268: if (fd > 2)
269: close(fd);
270: close(img);
271: return 4;
272: }
273: } else { /* GET */
274: if (EmptyStore(fd) == -1) {
275: if (fd > 2)
276: close(fd);
277: close(img);
278: return 3;
279: }
280: if (FillStore(fd, img) == -1) {
281: if (fd > 2)
282: close(fd);
283: close(img);
284: return 4;
285: }
1.2 misho 286: }
287:
288: close(img);
289: if (fd > 2)
290: close(fd);
1.4 misho 291:
292: if (R)
293: reboot(RB_AUTOBOOT);
1.2 misho 294: return 0;
295: }