{"id":119941,"date":"2024-09-25T15:43:10","date_gmt":"2024-09-25T13:43:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-openbsd-zapretili-ispolzovanie-nulevyh-simvolov-v-shell-skriptah"},"modified":"2024-09-25T15:43:10","modified_gmt":"2024-09-25T13:43:10","slug":"v-openbsd-zapretili-ispolzovanie-nulevyh-simvolov-v-shell-skriptah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/v-openbsd-zapretili-ispolzovanie-nulevyh-simvolov-v-shell-skriptah","title":{"rendered":"OpenBSD a interdit l'utilisation de caract\u00e8res nuls dans les scripts shell","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Theo de Raadt a ajout\u00e9 un changement interdisant l'utilisation du caract\u00e8re avec un code nul dans les scripts shell trait\u00e9s par le shell par d\u00e9faut ksh. La pr\u00e9sence de caract\u00e8res nuls dans les scripts entra\u00eenera d\u00e9sormais un arr\u00eat de l'ex\u00e9cution avec un message d'erreur, sauf si ces caract\u00e8res sont plac\u00e9s parmi les donn\u00e9es jointes \u00e0 la fin du fichier apr\u00e8s le code. Le changement est inclus dans la branche OpenBSD-Current, sur la base de laquelle sera construit la version OpenBSD 7.6. <\/p>\n

Il est \u00e0 noter qu'un tel changement \u00e9vitera l'incertitude du comportement li\u00e9 au traitement du caract\u00e8re nul dans le code \u00e9crit en C, qui utilise des cha\u00eenes o\u00f9 le caract\u00e8re nul est utilis\u00e9 pour indiquer la fin de la cha\u00eene. L'\u00e9tude du traitement du caract\u00e8re nul dans diff\u00e9rents shells a montr\u00e9 qu'un ou plusieurs cas o\u00f9 le caract\u00e8re nul dans les donn\u00e9es d'entr\u00e9e ou le contenu des variables entra\u00eenait un comportement diff\u00e9rent des autres shells, par exemple, certains shells l'ignoraient, certains le rempla\u00e7aient par un espace, et d'autres arr\u00eataient l'analyse du script ou mettaient fin \u00e0 son ex\u00e9cution.
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Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0422\u044d\u043e \u0434\u0435 \u0420\u0430\u0430\u0434\u0442 (Theo de Raadt) \u0434\u043e\u0431\u0430\u0432\u0438\u043b \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u0437\u0430\u043f\u0440\u0435\u0449\u0430\u044e\u0449\u0435\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u043c\u0432\u043e\u043b\u0430 \u0441 \u043d\u0443\u043b\u0435\u0432\u044b\u043c \u043a\u043e\u0434\u043e\u043c \u0432 shell-\u0441\u043a\u0440\u0438\u043f\u0442\u0430\u0445, \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u044b\u0445 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u043c \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u044b\u043c \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u043e\u043c ksh. \u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u043d\u0443\u043b\u0435\u0432\u044b\u0445 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u0432 \u0441\u043a\u0440\u0438\u043f\u0442\u0430\u0445 \u0442\u0435\u043f\u0435\u0440\u044c \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442\u044c \u043a \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441 \u0432\u044b\u0432\u043e\u0434\u043e\u043c \u043e\u0448\u0438\u0431\u043a\u0438, \u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u0438\u0445 \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u0438 \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u0451\u043d\u043d\u044b\u0445 \u0432 \u043a\u043e\u043d\u0446\u0435 \u0444\u0430\u0439\u043b\u0430 \u0441\u043b\u0435\u0434\u043e\u043c \u0437\u0430 \u043a\u043e\u0434\u043e\u043c. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u043e \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-119941","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47OpenBSD a interdit l'utilisation de caract\u00e8res nuls dans les scripts shell | ProHoster","description":"Theo de Raadt a ajout\u00e9 un changement interdisant l'utilisation du caract\u00e8re avec un code nul dans les scripts shell trait\u00e9s par le shell par d\u00e9faut 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