Mercurial > hg > xemacs-beta
annotate lib-src/insert-data-in-exec.c @ 5705:9c9b07d40f20
Update references to repository to reflect current reality.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Fri, 28 Dec 2012 13:03:15 +0900 |
| parents | dfc9fe46c294 |
| children | 86d33ddc7fd6 |
| rev | line source |
|---|---|
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
diff
changeset
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1 /* Copies the dump file inside the xemacs executable. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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2 Copyright (C) 2003-2004 Olivier Galibert. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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3 Copyright (C) 2003 Larry McVoy. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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4 |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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5 Redistribution and use in source and binary forms, with or without |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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6 modification, are permitted provided that the following conditions are met: |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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7 |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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8 1. Redistributions of source code must retain the above copyright notice, |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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9 this list of conditions and the following disclaimer. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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10 2. Redistributions in binary form must reproduce the above copyright notice, |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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11 this list of conditions and the following disclaimer in the documentation |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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12 and/or other materials provided with the distribution. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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13 |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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14 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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15 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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16 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL LARRY |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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17 MCVOY, THE XEMACS PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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18 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
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19 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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20 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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21 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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22 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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23 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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24 |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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25 The views and conclusions contained in the software and documentation are those |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
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26 of the authors and should not be interpreted as representing official policies, |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
diff
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27 either expressed or implied, of the XEmacs Project. |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
diff
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28 |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
diff
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29 The "key" array is the work of Larry McVoy. See |
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dfc9fe46c294
Add BSD header to lib-src/insert-data-in-exec.c, with permission of Olivier
Jerry James <james@xemacs.org>
parents:
2502
diff
changeset
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30 http://lkml.org/lkml/2003/7/11/141 for more information. */ |
| 2015 | 31 |
| 32 #include <stdio.h> | |
| 33 #include <stdlib.h> | |
| 34 #include <string.h> | |
| 35 | |
| 36 static const unsigned char key[] = { | |
| 37 255, | |
| 38 6, | |
| 39 1, | |
| 40 2, | |
| 41 3, | |
| 42 4, | |
| 43 255, | |
| 44 3, | |
| 45 9, | |
| 46 62, | |
| 47 255, | |
| 48 10, | |
| 49 4, | |
| 50 61, | |
| 51 255 | |
| 52 }; | |
| 53 | |
| 54 int main(int argc, char **argv) | |
| 55 { | |
| 56 FILE *te, *xe, *dump; | |
| 57 unsigned char *xed, *p; | |
| 58 long size, size_dump, size1, i; | |
| 59 long max_size, offset; | |
| 60 | |
| 61 char msg[65536]; | |
| 62 | |
| 63 if(argc != 6 && (argc != 3 || strcmp(argv[1], "-s"))) { | |
| 64 fprintf(stderr, "Usage:\n%s temacs xemacs.dmp xemacs size offset\n%s -s xemacs.dmp\n", argv[0], argv[0]); | |
| 65 exit(1); | |
| 66 } | |
| 67 | |
| 68 if(argc == 3) { | |
| 69 sprintf(msg, "Opening %s failed", argv[2]); | |
| 70 dump = fopen(argv[2], "rb+"); | |
| 71 if(!dump) { | |
| 72 perror(msg); | |
| 73 exit(1); | |
| 74 } | |
| 75 | |
| 76 if(fseek(dump, 0, SEEK_END)) { | |
| 77 perror("fseek end dump"); | |
| 78 exit(1); | |
| 79 } | |
| 80 | |
| 81 size = ftell(dump); | |
| 82 if(size == -1) { | |
| 83 perror("ftell dump"); | |
| 84 exit(1); | |
| 85 } | |
| 86 | |
| 87 printf("%ld\n", size); | |
| 88 exit(0); | |
| 89 } | |
| 90 | |
| 91 | |
| 92 max_size = strtol(argv[4], 0, 10); | |
| 93 offset = strtol(argv[5], 0, 10); | |
| 94 | |
| 95 sprintf(msg, "Opening %s failed", argv[1]); | |
| 96 te = fopen(argv[1], "rb"); | |
| 97 if(!te) { | |
| 98 perror(msg); | |
| 99 exit(1); | |
| 100 } | |
| 101 | |
| 102 if(fseek(te, 0, SEEK_END)) { | |
| 103 perror("fseek end"); | |
| 104 exit(1); | |
| 105 } | |
| 106 | |
| 107 size = ftell(te); | |
| 108 if(size == -1) { | |
| 109 perror("ftell"); | |
| 110 exit(1); | |
| 111 } | |
| 112 | |
| 113 if(fseek(te, 0, SEEK_SET)) { | |
| 114 perror("fseek beginning"); | |
| 115 exit(1); | |
| 116 } | |
| 117 | |
| 118 xed = malloc(size); | |
| 119 if(!xed) { | |
| 120 perror("malloc"); | |
| 121 exit(1); | |
| 122 } | |
| 123 | |
| 124 size1 = fread(xed, 1, size, te); | |
| 125 if(size1 != size) { | |
| 126 if(ferror(te)) { | |
| 127 perror("fread temacs"); | |
| 128 exit(1); | |
| 129 } | |
| 130 fprintf(stderr, "Fread returned %ld, expected %ld ?\n", size1, size); | |
| 131 exit(1); | |
| 132 } | |
| 133 | |
| 134 if(fclose(te)) { | |
| 135 perror("fclose temacs"); | |
| 136 exit(1); | |
| 137 } | |
| 138 | |
| 139 p = xed; | |
| 140 for(i=0; i<size-(long)sizeof(key); i++) { | |
| 141 if(!memcmp(p, key, sizeof(key))) | |
| 142 goto found; | |
| 143 p++; | |
| 144 } | |
| 145 | |
| 146 fprintf(stderr, "dumped_data key not found in executable.\n"); | |
| 147 exit(1); | |
| 148 | |
| 149 found: | |
| 150 fprintf(stderr, "dumped_data found at offset 0x%lx, patching.\n", i); | |
| 151 | |
| 152 sprintf(msg, "Opening %s failed", argv[2]); | |
| 2502 | 153 dump = fopen(argv[2], "rb"); |
| 2015 | 154 if(!dump) { |
| 155 perror(msg); | |
| 156 exit(1); | |
| 157 } | |
| 158 | |
| 159 if(fseek(dump, 0, SEEK_END)) { | |
| 160 perror("fseek end dump"); | |
| 161 exit(1); | |
| 162 } | |
| 163 | |
| 164 size_dump = ftell(dump); | |
| 165 if(size_dump == -1) { | |
| 166 perror("ftell dump"); | |
| 167 exit(1); | |
| 168 } | |
| 169 | |
| 170 if(size_dump > max_size) { | |
| 2022 | 171 fprintf(stderr, "Dump file too big for available space (max=%ld, dump=%ld)\n", max_size, size_dump); |
| 2015 | 172 exit(2); |
| 173 } | |
| 174 | |
| 175 if(fseek(dump, 0, SEEK_SET)) { | |
| 176 perror("fseek beginning dump"); | |
| 177 exit(1); | |
| 178 } | |
| 179 | |
| 180 size1 = fread(xed+i+offset, 1, size_dump, dump); | |
| 181 if(size1 != size_dump) { | |
| 182 if(ferror(dump)) { | |
| 183 perror("fread dump"); | |
| 184 exit(1); | |
| 185 } | |
| 186 fprintf(stderr, "Fread dump returned %ld, expected %ld ?\n", size1, size_dump); | |
| 187 exit(1); | |
| 188 } | |
| 189 | |
| 190 if(fclose(dump)) { | |
| 191 perror("fclose dump"); | |
| 192 exit(1); | |
| 193 } | |
| 194 | |
| 195 memset(xed+i, 0, offset); | |
| 196 | |
| 197 xed[i ] = size_dump; | |
| 198 xed[i+1] = size_dump >> 8; | |
| 199 xed[i+2] = size_dump >> 16; | |
| 200 xed[i+3] = size_dump >> 24; | |
| 201 | |
| 202 fprintf(stderr, "dumped_data found at offset 0x%lx, patching.\n", i); | |
| 203 | |
| 204 sprintf(msg, "Opening %s failed", argv[3]); | |
| 205 xe = fopen(argv[3], "wb"); | |
| 206 if(!xe) { | |
| 207 perror(msg); | |
| 208 exit(1); | |
| 209 } | |
| 210 | |
| 211 size1 = fwrite(xed, 1, size, xe); | |
| 212 if(size1 != size) { | |
| 213 if(ferror(xe)) { | |
| 214 perror("fwrite xemacs"); | |
| 215 exit(1); | |
| 216 } | |
| 217 fprintf(stderr, "Fwrite xemacs returned %ld, expected %ld ?\n", size1, size); | |
| 218 exit(1); | |
| 219 } | |
| 220 | |
| 221 if(fclose(xe)) { | |
| 222 perror("fclose xemacs"); | |
| 223 exit(1); | |
| 224 } | |
| 225 | |
| 226 exit(0); | |
| 227 } | |
| 228 |