[B! gdb] hackedã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

hacked id:hacked

gdbã«é–¢ã™ã‚‹hackedã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (16)

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http://karetta.jp/article/book/243420/243419/commentForm
hacked 2010/01/24
mysql

gdb
ãƒªãƒ³ã‚¯
ã»ã’ã‚ã‚‚: gdb hacksã‚¢ãƒ¼ã‚«ã‚¤ãƒ–
gdb hacks ç¬¬ 6 å›žã€‚å‰å›žã¯ IA-32 ã§ gdb ãŒãƒ‡ãƒãƒƒã‚°ãƒ¬ã‚¸ã‚¹ã‚¿ã‚’ã©ã®ã‚ˆã†ã«æ´»ç”¨ã—ã¦ã„ã‚‹ã‹ã‚’è¦‹ã¾ã—ãŸã€‚ä»Šå›žã¯ãƒ‡ãƒãƒƒã‚°ãƒ¬ã‚¸ã‚¹ã‚¿ã‚’ãƒ—ãƒã‚»ã‚¹ãŒè‡ªåˆ†è‡ªèº«ã§åˆ©ç”¨ã™ã‚‹æ–¹æ³•ã«ã¤ã„ã¦è€ƒãˆã¦ã¿ã¾ã™ã€‚
hacked 2010/01/14
gdb

C
ãƒªãƒ³ã‚¯
gdb tips - bkãƒ–ãƒã‚°
gdb tips gdb ã‚’ä½¿ã†ä¸Šã§ä¾¿åˆ©ãª tips ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚åŸºæœ¬çš„ãªä½¿ã„æ–¹ã‚’ãƒžã‚¹ã‚¿ãƒ¼ã—ã¦ã„ã‚‹äººå‘ã‘ã§ã™ã€‚ .gdbinit ã®è¨å®š ãƒ›ãƒ¼ãƒ ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã« .gdbinit ã‚’ç½®ã„ã¦ãŠãã¨ã€gdb ã®èµ·å‹•ã®éš›ã«èªã¿è¾¼ã¾ã‚Œã¾ã™ã€‚ç§ã®å ´åˆã¯æ¬¡ã®ã‚ˆã†ãªè¨å®šã‚’ã—ã¦ã„ã¾ã™ã€‚ set history save on set history size 10000 set history filename ~/.gdb_history set print pretty on set print static-members off set charset ASCII set history ã‹ã‚‰å§‹ã¾ã‚‹æœ€åˆã® 3è¡Œã¯å±¥æ´ã«é–¢ã™ã‚‹è¨å®šã§ã™ã€‚ãã‚Œãžã‚Œã€ gdb ã®ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã®å±¥æ´ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã«ä¿å˜ã™ã‚‹ã€ä¿å˜ã™ã‚‹è¡Œã¯æœ€å¤§ 10000 è¡Œã€ãƒ•ã‚¡ã‚¤ãƒ«åã¯ ~/.gdb_history ã€ã¨ã„ã†æ„å‘³ã«ãªã‚Šã¾ã™ã€‚
hacked 2010/01/14
gdb

c

programming
ãƒªãƒ³ã‚¯
TosHiki - gdbã§ã‚‚ã£ã¨èª¿ã¹ã‚‹
sample2ã§ã¯ã€sample1.c ã¨åŒã˜ãã€ç¢ºå®Ÿã«ã‚»ã‚°ãƒ¡ãƒ³ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ãƒ»ãƒ•ã‚©ãƒ«ãƒˆã‚’èµ·ã“ã™ãŸã‚ã« sub2 é–¢æ•°ã§æ˜Žç¤ºçš„ã« 0 ã‚’è¿”ã™ã‚ˆã†ã«ã—ã¦ã„ã¾ã™ã€‚æœ¬æ¥ã¯ã€ãã®ç›´å‰ã®ã‚³ãƒ¡ãƒ³ãƒˆã‚¢ã‚¦ãƒˆã—ã¦ã„ã‚‹éƒ¨åˆ†ã®ã‚ˆã†ã«ã€ãªã‚“ã‚‰ã‹ã®ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’ç¢ºä¿ã—ã¦è¿”ã™é–¢æ•°ã€‚ sample2.c ã¾ãŸã€-g ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚’ä»˜ã‘ã¦ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã—ã€å®Ÿè¡Œå½¢å¼ã‚’å®Ÿè¡Œã—ã¦ã‚³ã‚¢ãƒ€ãƒ³ãƒ—ã•ã›ã‚‹ã€‚ãã—ã¦ã€gdb ã‚’èµ·å‹•ã—ã¦ã‚¹ã‚¿ãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã‚’ç¢ºèªã™ã‚‹ã€‚ å®Ÿè¡Œçµæžœ ä»Šå›žã¯ã€libc.so.6 ã¨ã„ã†ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ä¸ã® _IO_str_overflow_internal ã¨ã„ã†é–¢æ•°ã§ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã—ã¦ã„ã‚‹ã‚ˆã†ã§ã‚ã‚‹ã€‚ backtrace ã‚³ãƒžãƒ³ãƒ‰ ã“ã®é–¢æ•°ãŒã©ã®ã‚ˆã†ã«å‘¼ã³å‡ºã•ã‚Œã¦ã„ã‚‹ã®ã‹ã‚’è¦‹ã¦ã¿ã‚‹ã€‚ (gdb) bt #0 0x42070fa4 in _IO_str_overflow_internal () from /lib/tls/libc.so
hacked 2010/01/14
gdb
ãƒªãƒ³ã‚¯
gdb ã®ä½¿ã„æ–¹ãƒ»ãƒ‡ãƒãƒƒã‚°æ–¹æ³•ã¾ã¨ã‚
ãŸã¨ãˆã°ã€å¤‰æ•° var ã®å€¤ã‚’2é€²æ•°ã§è¡¨ç¤ºã—ãŸã„å ´åˆã¯ã€æ¬¡ã®ã‚ˆã†ã«æŒ‡å®šã—ã¾ã™ã€‚ (gdb) p/t var ä¸€è¦§è¡¨ç¤º whatis å¤‰æ•°ã®åž‹ã‚’èª¿ã¹ã‚‹ã€‚ info b ä»Šè¨å®šã—ã¦ã„ã‚‹ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã®ä¸€è¦§ã‚’è¡¨ç¤º ã‚»ã‚°ãƒ¡ãƒ³ãƒˆãƒ•ã‚©ãƒ«ãƒˆã‚’ã—ãŸå¾Œã«åˆ©ç”¨ã™ã‚Œã°ã€ã©ã®é–¢æ•°ã§ç™ºç”Ÿã—ãŸã‹ç¢ºèªã§ãã¾ã™ã€‚ info stack é–¢æ•°ã®å‘¼ã³å‡ºã—ã‚¹ã‚¿ãƒƒã‚¯ã®ä¸€è¦§ã‚’è¡¨ç¤º info Thread å˜åœ¨ã—ã¦ã„ã‚‹ã‚¹ãƒ¬ãƒƒãƒ‰ã®ä¸€è¦§ã‚’è¡¨ç¤º ç•°ãªã‚‹ã‚¢ãƒ‰ãƒ¬ã‚¹ã«ãŠã‘ã‚‹å‡¦ç†ç¶™ç¶š ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’ä½¿ç”¨ã™ã‚‹ã“ã¨ã§ã€ãƒ¦ãƒ¼ã‚¶ãŒé¸æŠžã—ãŸã‚¢ãƒ‰ãƒ¬ã‚¹ã«ãŠã„ã¦å®Ÿè¡Œã‚’ç¶™ç¶šã•ã›ã‚‹ã“ã¨ãŒã§ãã¾ã™ jump linespec linespecã§æŒ‡å®šã•ã‚Œã‚‹è¡Œã«ãŠã„ã¦ã€å®Ÿè¡Œã‚’å†é–‹ jump *address addressã§æŒ‡å®šã•ã‚Œã‚‹ã‚¢ãƒ‰ãƒ¬ã‚¹ã«ã‚ã‚‹å‘½ä»¤ã‹ã‚‰ã€å®Ÿè¡Œã‚’å†é–‹ ã‚¢ãƒ‰ãƒ¬ã‚¹ãŒåˆ†ã‹ã£ã¦ã„ã‚‹å ´åˆã®ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯å‡ºåŠ› xã¯hexã®æ„å‘³ã§ã™ã€‚ (gdb) p (char*)
hacked 2010/01/11
gdb
ãƒªãƒ³ã‚¯
Apacheãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã®ä½œæˆã¨gdbã¨loggerã§ã®ãƒ‡ãƒãƒƒã‚°æ–¹æ³• - ã‚ˆãã®ã¯ã¦ãª
Apacheã®Filterãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ä½œã£ãŸè©±ã—ã‚’ã—ãŸã‚‰id:c9katayamaã«æƒ…å ±å…¬é–‹ã—ã‚ã¨è¨€ã‚ã‚ŒãŸã¾ã¾ã§ã—ãŸã®ã§å…¬é–‹ã—ã¾ã™ã€‚ Cè¨€èªžã®å‹‰å¼·ã—ã‚ˆã†ã‹ãªã€Apache2.xã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ä½œã£ã¦ã¿ã‚ˆã†ã‹ãªã€gdbä½¿ã£ã¦ãƒ‡ãƒãƒƒã‚°ã—ã¦ã¿ã‚ˆã†ã‹ãªã¨è€ƒãˆã¦ãŸäººã«ãŠå‹§ã‚ã§ã™ã€‚ Javaã§ã®Servletã®é–‹ç™ºçµŒé¨“ã®ã‚ã‚‹äººã§ã‚ã‚Œã°ã€Filterã®å‡¦ç†ã®å‹•ãã‚„ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã®è€ƒãˆæ–¹ã¯åˆ†ã‹ã‚Šæ˜“ã„ã¯ãšãªã®ã§ã€ã‚¨ãƒ³ãƒˆãƒªã‚’èªã¿çµ‚ã‚ã‚‹é ƒã«ã¯Apacheã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’gdbã§ãƒ‡ãƒãƒƒã‚°ã—ãªãŒã‚‰ä½œã‚‹äº‹ãŒå‡ºæ¥ã‚‹ã¯ãšã§ã™ã€‚ mod_orzã‚’ä½œæˆ ä»Šå›žã¯mod_orzã¨ã„ã†Apacheãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ä½œæˆã—ã¾ã™ã€‚ Apacheãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ä½œæˆã™ã‚‹éš›ã«ã¯ã€apxsã¨ã„ã†ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«é–‹ç™ºç”¨ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’ä½¿ç”¨ã—ãƒ†ãƒ³ãƒ—ãƒ¬ãƒ¼ãƒˆã‚’ä½œã‚Šã¾ã™ã€‚ # apxs -g -n orz Creating [DIR] orz Creating [F
hacked 2010/01/10
apache

c

gdb
ãƒªãƒ³ã‚¯
GDBã‚³ãƒžãƒ³ãƒ‰ä¸€è¦§
run ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’å®Ÿè¡Œã—ã¾ã™ã€‚ run ä½•ã‚‚å¼•æ•°ã‚’æ¸¡ã•ãšã«å®Ÿè¡Œã—ã¾ã™ã€‚ run arguments argumentsã‚’å¼•æ•°ã«æŒ‡å®šã—ã¦å®Ÿè¡Œã—ã¾ã™ã€‚ ä¾‹ãˆã°ã€Œ-v -o filenameã€ã‚’å¼•æ•°ã¨ã—ã¦èµ·å‹•ã—ãŸã„å ´åˆã¯run -v -o filenameã¨ã—ã¾ã™ã€‚ runã§ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ã®æ¨™æº–å…¥å‡ºåŠ›ã‚’ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã™ã‚‹ã“ã¨ãŒå¯èƒ½ã§ã™ã€‚ æ¨™æº–å‡ºåŠ›ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã«ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã™ã‚‹ã«ã¯ run > filename æ¨™æº–å…¥åŠ›ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã‹ã‚‰èªã¿è¾¼ã‚€ã«ã¯ run < filename æ¨™æº–å‡ºåŠ›ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã«æ¨™æº–å…¥åŠ›ã‚’ãƒ•ã‚¡ã‚¤ãƒ«ã‹ã‚‰èªã‚€è¾¼ã‚€ã«ã¯ run < infile > outfile â†‘ quit GDBã‚’çµ‚äº†ã—ã¾ã™ã€‚ quit GDBã‚’çµ‚äº†ã—ã¾ã™ â†‘ shell ã‚·ã‚§ãƒ«ã‚³ãƒžãƒ³ãƒ‰ã‚’å®Ÿè¡Œã—ã¾ã™ã€‚ shell ã‚·ã‚§ãƒ«(é€šå¸¸ /bin/sh)ã‚’èµ·å‹•ã—ã¾ã™ã€‚ ã‚·ã‚§ãƒ«ã‚’çµ‚äº†ã™ã‚‹ã¨GDBã«æˆ»ã‚Šã¾ã™
hacked 2010/01/10
gdb
ãƒªãƒ³ã‚¯
gdbã®ä½¿ã„æ–¹ Apacheã‚’ãƒ‡ãƒãƒƒã‚°ã«å½¹ç«‹ã¤Tips Â« ã‚¤ã‚¤!! ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚° Blog
Apacheã‚’ã‚·ãƒ³ã‚°ãƒ«ãƒ—ãƒã‚»ã‚¹ã§ç«‹ã¡ä¸Šã’ã‚‹ Apache ãƒãƒ³ãƒ‰ãƒ©ãƒ¼ã‚’é–‹ç™ºã—ã¦ã„ã‚‹ã¨ããªã©ã€httpd ã‚’ ç›´æŽ¥ gdbã«ã‹ã‘ãŸã„å ´åˆã€ã‚·ãƒ³ã‚°ãƒ«ãƒ—ãƒã‚»ã‚¹ã§èµ·å‹•ã™ã‚‹ã¨ãƒ‡ãƒãƒƒã‚°ã—ã‚„ã™ã„ã€‚ å…·ä½“çš„ã«ã¯ä¸‹è¨˜ã®ã‚ˆã†ã«ã€ã€Œ-Xã€ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚’ã¤ã‘ã¦ã€apacheã‚’èµ·å‹•ã—ã¾ã™ã€‚ ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã‚’ã‚½ãƒ¼ã‚¹ä¸ã«è¨å®šã™ã‚‹ gdbã§ã€â€â€™break 30â€â€™ã¨ã‹ã‚„ã£ã¦ã‚‚ã„ã„ãŒã€ã‚½ãƒ¼ã‚¹ä¸ã§break pointã‚’è¨å®šã™ã‚‹ã“ã¨ã‚‚ã§ãã‚‹ã€‚ ç‰¹å®šã®æ¡ä»¶ä¸‹ã®å ´åˆã®ã¿breakã•ã›ãŸã„å ´åˆãªã©ã«ä¾¿åˆ©ã€‚ signal.hã‚’includeã—ã¦SIGTRAPã‚’æŠ•ã’ã‚‹ã¨breakã™ã‚‹ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ #include <stdio.h> #include <signal.h> int main() { printf("a\n"); raise(SIGTRAP); printf("b\n"); return 0; } å‚è€ƒæ›¸ç±
hacked 2010/01/10
apache

gdb
ãƒªãƒ³ã‚¯
ç¬¬2å›žã€€æ–‡å—åˆ—ç½®æ›é–¢æ•°ã®æ¯”è¼ƒã¨gdbã®ä½¿ã„æ–¹ | gihyo.jp
ã¯ã˜ã‚ã« å‰å›žã«å¼•ãç¶šãã€PHPæœ€é©åŒ–Tipsã«ã¤ã„ã¦æ¤œè¨¼ã—ã¦ã„ãã¾ã™ã€‚ ä»Šå›žã¯æ–‡å—åˆ—ç½®æ›é–¢æ•°ã®æ¯”è¼ƒã§ã™ã€‚ã¾ãŸgdbã‚’ç”¨ã„ãŸPHPã‚³ãƒ¼ãƒ‰ã®èªã¿æ–¹ã«ã¤ã„ã¦ã‚‚ç´¹ä»‹ã—ã¾ã™ã€‚ strtr ï¼ž str_replace ï¼ž preg_replace ã®é †ã«é€Ÿã„ ã“ã®3ã¤ã®é–¢æ•°ã¯ç´°ã‹ãªå‹•ãã«é•ã„ã¯ã‚ã‚‹ã‚‚ã®ã®ã€æ–‡å—åˆ—ã‚’ç½®ãæ›ãˆã‚‹é–¢æ•°ã§ã™ã€‚ã“ã®ã‚ˆã†ã«åŒã˜å‹•ãã‚’ã™ã‚‹é–¢æ•°ãŒå¤šãå˜åœ¨ã™ã‚‹ã®ã¯è‰¯ãã‚‚æ‚ªãã‚‚PHPã®ç‰¹å¾´ã§ã‚ã‚‹ã¨ã„ãˆã¾ã™ã€‚ ä¸‹è¨˜ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ç”¨ã®ã‚³ãƒ¼ãƒ‰ã‚’ç”¨æ„ã—ã¦ã€è¨ˆæ¸¬ã‚’è¡Œã„ã¾ã™ã€‚ benchmark_strtr.php <?php $t = microtime(true); $i = 0; while($i < 1000) { $a = strtr('abcdefghijklmn', 'abc', 'ABC'); ++$i; } $tmp = microtime(true) - $t; var_dump
hacked 2009/12/10
php

gdb
ãƒªãƒ³ã‚¯
PHPã§ã®ãƒ‡ãƒãƒƒã‚°æ–¹æ³•
ãƒ¤ãƒ•ãƒ¼æ ªå¼ä¼šç¤¾ã¯ã€2023å¹´10æœˆ1æ—¥ã«LINEãƒ¤ãƒ•ãƒ¼æ ªå¼ä¼šç¤¾ã«ãªã‚Šã¾ã—ãŸã€‚LINEãƒ¤ãƒ•ãƒ¼æ ªå¼ä¼šç¤¾ã®æ–°ã—ã„ãƒ–ãƒã‚°ã¯ã“ã¡ã‚‰ã§ã™ã€‚LINEãƒ¤ãƒ•ãƒ¼ Tech Blog ãŠã²ã•ã—ã¶ã‚Šã§ã™ã€‚ã‚ªãƒ¼ã‚¯ã‚·ãƒ§ãƒ³æ‹…å½“ã®å±±å´Žã€€è³¢ã§ã™ã€‚ å‰å›žã¯PHP Serialize ã«ã¤ã„ã¦ã§ã—ãŸãŒã€ ä»Šå›žã¯PHPã§ã®ãƒ‡ãƒãƒƒã‚°ã«é–¢ã—ã¦ãŠè©±ã—ã¾ã™ã€‚ åŸºæœ¬PHPã¯ã‚¤ãƒ³ã‚¿ãƒ—ãƒªã‚¿(åŽ³å¯†ã«ã¯PHPã¯å†…éƒ¨ã§ä¸€åº¦ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã—ã¦ã„ã¾ã™ã®ã§ã‚¤ãƒ³ã‚¿ãƒ—ãƒªã‚¿ã¨ã¯è¨€ã„åˆ‡ã‚Œã¾ã›ã‚“ãŒ) ã®ãƒ‡ãƒãƒƒã‚°ã§ã¯ãƒã‚°åŸ‹ã‚è¾¼ã¿ãŒæ‰‹è»½ã§ã™ã€‚ ã—ã‹ã—ã€ã¾ã‚Œã«SIGSEGVã‚„SIGBUSãªã©ã§PHPã‚¹ã‚¯ãƒªãƒ—ãƒˆãŒè½ã¡ã‚‹ã“ã¨ãŒã‚ã‚Šã€é€”æ–¹ã«ãã‚Œã¾ã™ã€‚ åœ°é“ã«ãƒã‚°ã‚’åŸ‹ã‚è¾¼ã‚“ã§ã„ãã€ç®‡æ‰€ã‚’ç‰¹å®šã™ã‚‹ã®ã‚‚æ‰‹æ³•ã®1ã¤ã§ã™ãŒã€ä»Šå›žã¯gdbã‚’ç”¨ã„ãŸãƒ‡ãƒãƒƒã‚°æ–¹æ³•ã‚’è¨˜è¼‰ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ â– STEP1 ã¾ãšã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒ ãŒè½ã¡ã‚‹ã“ã¨ã‚’ç›®çš„ã¨ã—ã¦ä»¥ä¸‹ã®ã‚ˆã†ãªPHP Moduleã‚’ä½œæˆã—ã¾ã™ã€‚ ãƒ» ãƒ»
hacked 2009/12/10
php

module

gdb
ãƒªãƒ³ã‚¯
MySQL
hacked 2009/07/08
c++

gdb

mysql
ãƒªãƒ³ã‚¯
GDBï¼GDBserverã«ã‚ˆã‚‹ã‚¯ãƒã‚¹ã‚¿ãƒ¼ã‚²ãƒƒãƒˆã®ãƒªãƒ¢ãƒ¼ãƒˆãƒ‡ãƒãƒƒã‚°
GDBï¼GDBserverã«ã‚ˆã‚‹ã‚¯ãƒã‚¹ã‚¿ãƒ¼ã‚²ãƒƒãƒˆã®ãƒªãƒ¢ãƒ¼ãƒˆãƒ‡ãƒãƒƒã‚°ï¼šPrograming Bibleï¼ˆ1/3 ãƒšãƒ¼ã‚¸ï¼‰ Linuxãƒ™ãƒ¼ã‚¹ã®çµ„ã¿è¾¼ã¿ã‚·ã‚¹ãƒ†ãƒ ã§å‹•ãã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‡ãƒãƒƒã‚°ã¯åŽ„ä»‹ãªä»•äº‹ã ãŒã€GDBã‚’ä½¿ãˆã°ç°¡å˜ã«ç‰‡ä»˜ã‘ã‚‰ã‚Œã‚‹ã€‚ã“ã“ã§ã¯ã€GDBã‚’ä½¿ã†ä¸Šã§æœ€åˆã®é›£é–¢ã¨ãªã‚‹ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ—å‘¨ã‚Šã«ã¤ã„ã¦è§£èª¬ã™ã‚‹ã€‚ Linuxãƒ™ãƒ¼ã‚¹ã®çµ„ã¿è¾¼ã¿ã‚·ã‚¹ãƒ†ãƒ ã§å‹•ãã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‡ãƒãƒƒã‚°ã¯åŽ„ä»‹ãªä»•äº‹ã ãŒã€ç†è«–ä¸Šã¯GDBï¼ˆGNUãƒ‡ãƒãƒƒã‚¬ï¼‰ã‚’ä½¿ãˆã°ã€ã‚†ã¨ã‚Šã§ç‰‡ä»˜ã‘ã‚‰ã‚Œã‚‹ã¯ãšã§ã‚ã‚‹ã€‚ã ãŒå®Ÿéš›ã«ã¯ã€ãã®ãŸã‚ã®GDBã®ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ—ãŒã‚„ã‚„é›£é–¢ã¨ãªã‚‹ã€‚ç¾å®Ÿã«ä½œæ¥ãŒç™ºç”Ÿã™ã‚‹ã—ã€å…‹æœã™ã¹ãæŠ€è¡“çš„ãªéšœå®³ã‚‚å˜åœ¨ã™ã‚‹ã‹ã‚‰ã ã€‚ã¨ã¯ã„ãˆã€å½“ã¦æŽ¨é‡ã«é ¼ã‚‰ãšãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä¸€å®šã®æ–¹æ³•ã§ç³»çµ±çš„ã«ãƒ‡ãƒãƒƒã‚°ã™ã‚‹ã“ã¨ã®ãƒ¡ãƒªãƒƒãƒˆã¯ã€ã“ã®ä½œæ¥ã«æŽ›ã‹ã‚‹æ‰‹é–“ã‚’è£œã£ã¦ã‚ã¾ã‚Šã‚ã‚‹ã€‚ã“ã®ä½œæ¥ã§ç”Ÿãšã‚‹å›°é›£ã‚’è»½æ¸›ã™ã‚‹ãƒ’ãƒ³ãƒˆã‚’å¹¾ã¤ã‹ç´¹ä»‹ã—ã‚ˆã†ã€‚ ã‚¿ãƒ¼ã‚²ãƒƒãƒˆãƒ—ãƒ©
hacked 2009/07/08
gdb
ãƒªãƒ³ã‚¯
PHPã®å®Ÿè¡Œã‚’PHPã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰(Cè¨€èªž)ã®ãƒ¬ãƒ™ãƒ«ã§è¦‹ã‚‹æ–¹æ³• - suztomoã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
PHPã¯ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚ã°ã‚ã‹ã‚‹ã¨ãŠã‚ŠCè¨€èªžã§æ›¸ã„ã¦ã‚ã‚Šã¾ã™ã€‚ ãã®Cè¨€èªžã®ä¸ã§PHPãŒã©ã‚“ãªå‡¦ç†ã‚’ã—ã¦ã„ã‚‹ã®ã‹ã‚’ãƒ‡ãƒãƒƒã‚¬ã§ã‚ã‚‹gdbã‚’ç”¨ã„ã¦è¦‹ã‚‹ã“ã¨ãŒã§ãã‚‹ã®ã§ãã‚Œã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ã¾ãæ™®é€šã®gdbã®ä½¿ã„æ–¹ãªã‚“ã§ã™ãŒ:p ã‚½ãƒ¼ã‚¹ã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—ã¦ã‚³ãƒ³ãƒ‘ã‚¤ãƒ« PHP-5.2.6ã®ã‚½ãƒ¼ã‚¹ã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—ã¾ã™ã€‚ ã¾ãš./configureã™ã‚‹ã¨ã®MakefileãŒã§ãã¾ã™ã€‚ ã“ã®Makefileã®ä¸ã§-gã‚ªãƒ—ã‚·ãƒ§ãƒ³ãŒã¤ã„ã¦ã„ã‚‹ã“ã¨ã‚’ç¢ºèªã—ã¾ã—ã‚‡ã†ã€‚*1 ã“ã‚ŒãŒãƒ‡ãƒãƒƒã‚¬(gdb)ç”¨ã®ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã§ã€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã•ã‚ŒãŸãƒã‚¤ãƒŠãƒªãƒ•ã‚¡ã‚¤ãƒ«ã«ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¨ã®å¯¾å¿œä»˜ã‘ãŒã§ãã¾ã™ã€‚ æ¬¡ã«makeã—ã¾ã™ã€‚æ™‚é–“ãŒã‹ã‹ã‚Šã¾ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ãƒ•ã‚¡ã‚¤ãƒ« makeã—ã¦ã„ã‚‹é–“ã«æ¬¡ã®ã‚ˆã†ãªPHPãƒ•ã‚¡ã‚¤ãƒ«ã‚’ä½œæˆã—ã¾ã—ã‚‡ã†ã€‚ <?php $i = "12"; $k = intval($i); ?> ã“ã‚Œã¯æ–‡å—åˆ—ã®"12"ã‚’intvalé–¢
hacked 2008/12/25
cè¨€èªž

debug

gdb

php

programming
ãƒªãƒ³ã‚¯
gcc+gdbã«ã‚ˆã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã®ãƒ‡ãƒãƒƒã‚° ç¬¬3å›ž gdbã®ä¾¿åˆ©ãªæ©Ÿèƒ½ã€ãƒ‡ãƒãƒƒã‚°ã®ä¾‹
ã„ãã¤ã‹ã®ãƒã‚°ã‚’å«ã‚€ãƒ„ãƒªãƒ¼ã‚½ãƒ¼ãƒˆã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ç”¨æ„ã—ã¾ã—ãŸã€‚ treesort1.c #include <stdio.h> #include <stdlib.h> struct node { int value; struct node *left; struct node *right; }; void treeadd(struct node**, int); void treewalk(struct node*); void treefree(struct node*); int main(int argc, char **argv) { struct node *rootp; int i; int array[15] = {50, 12, 18, 70, 41, 19, 91, 1, 7, 6, 81, 65, 55, 20, 0}; for (i = 0; i < 15; i++)
hacked 2006/12/19
C

gdb
ãƒªãƒ³ã‚¯
debugging with GDB
gdbã¨ã¯ gdbã¯ The GNU Project Debuggerã®ã“ã¨ã§ã™ã€‚ ãƒ‡ãƒãƒƒã‚°ã®ãŸã‚ã®ãƒ„ãƒ¼ãƒ«ã§ã™ã€‚ ãƒ—ãƒã‚°ãƒ©ãƒ ãŒã‚¨ãƒ©ãƒ¼çµ‚äº†ã™ã‚‹ãŒã€ã©ã“ãŒæ‚ªã„ã®ã‹ã‚ã‹ã‚‰ãªã„â€¦ ã¨ã„ã†ã‚ˆã†ãªæ™‚ã«ä¾¿åˆ©ã§ã™ã€‚ æº–å‚™ ãƒ‡ãƒãƒƒã‚°å¯¾è±¡ãƒ—ãƒã‚°ãƒ©ãƒ ã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ« ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã—ãŸãƒ—ãƒã‚°ãƒ©ãƒ ã«ãƒ‡ãƒãƒƒã‚°æƒ…å ±ã‚’å«ã‚ã¦ãŠãã¨ã€ ãƒ‡ãƒãƒƒã‚¬ã§ãƒ—ãƒã‚°ãƒ©ãƒ ã®ã‚½ãƒ¼ã‚¹ã‚’å‚ç…§ã§ãã‚‹ãªã©ã€ ãƒ‡ãƒãƒƒã‚°ãŒéžå¸¸ã«æ¥½ã«ãªã‚Šã¾ã™ã€‚ gccã‚„UNIXã®ccã§ã¯ã€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«æ™‚ã«ã€Œ-gã€ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚’ä»˜åŠ ã™ã‚‹ã¨ ãƒ‡ãƒãƒƒã‚°æƒ…å ±ã‚’ç”Ÿæˆã—ã¾ã™ã€‚ æœ€é©åŒ–ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã€Œ-Oã€ã¨ ãƒ‡ãƒãƒƒã‚°ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã€Œ-gã€ã®ä¸¡æ–¹ã¯ åŒæ™‚ã«æŒ‡å®šã§ããªã„ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã‚‚ã‚ã‚‹ã®ã§æ³¨æ„ã—ã¦ãã ã•ã„ã€‚ gccã¯åŒæ™‚ã«æŒ‡æ‘˜ã§ãã¾ã™ã€‚ ãªãŠã€FreeBSDã‚„RedHat Linuxã®ccã®æ£ä½“ã¯gccãªã®ã§ã€ ã€Œ-Oã€ã¨ã€Œ-gã€ã‚’åŒæ™‚ã«æŒ‡å®šã§ãã¾ã™ã€‚ makeã§ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã—ã¦ã„ã‚‹å ´åˆã«ã¯ã€ ã€Œ-gã€ã‚ª
hacked 2006/12/19
ãƒ‡ãƒãƒƒã‚°

gdb

core
ãƒªãƒ³ã‚¯
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ãŸã¾ãŸã¾è¬›èªã—ã¦ã„ã‚‹ php-dev ã¨ã„ã†PHPã®å®Ÿè£…ã‚’æ—¥æœ¬èªžã§è°è«–ã™ã‚‹ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã§ã€Œmbstring ã®æ–°é–¢æ•°ã€ã¨ã„ã†ã‚¹ãƒ¬ãƒƒãƒ‰ãŒã‚ã£ãŸã€‚æ–°è¦ã«mb_list_encodings_alias_names()ã¨ã„ã†é–¢æ•°ã‚’è¿½åŠ ã—ãŸã‚‰ã—ã„ã®ã ãŒã€æ—¢å˜ã®mb_list_encodings()ã¨ã©ã†é•ã†ã®ã‹ã©ã†ã‹ã¨ã„ã†è°è«–ãŒã‚ããŠã“ã£ã¦ã„ã‚‹ã€‚ ã“ã“ã§ã¯ã€mb_list_encodings()ã‚’é¡Œæã«ã©ã†ã‚„ã£ã¦phpã®å®Ÿè£…ã‚’ç†è§£ã—ã¦ã„ãã‹ã€ãã®ãƒ—ãƒã‚»ã‚¹ã‚’è¨˜è¿°ã—ã¦ã¿ãŸã„ã€‚ã‚‚ã¡ã‚ã‚“ã“ã®æ–¹æ³•ãŒãƒ™ã‚¹ãƒˆã§ã‚ã‚‹ã¨ã‹ã€ã“ã®æ–¹æ³•ã§ãªã‘ã‚Œã°ã„ã‘ãªã„ã¨ã‹ã€ã„ã¤ã§ã‚‚ã“ã®æ–¹æ³•ãŒé©ç”¨å¯èƒ½ã ãªã‚“ã¦ã“ã¨ã‚’ä¸»å¼µã™ã‚‹ã¤ã‚‚ã‚Šã¯ä¸€åˆ‡ãªã„ãŒã€ä¸€ã¤ã®ä¾‹ã¨ã—ã¦å¤§è¦æ¨¡ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã®å¾®è¦–çš„ç†è§£æ–¹æ³•ã‚’ç†è§£ã„ãŸã ããŸã„ã€‚ 1) mb_list_encodingsãŒã©ã“ã§åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã‹ã‚’çŸ¥ã‚‹ã€‚ $ cd /usr/src/php-5.1.4 $
hacked 2006/09/22
gdb

PHP

ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆ

ãƒ‡ãƒãƒƒã‚¬
ãƒªãƒ³ã‚¯
1