{"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\/et\/blog\/news\/v-openbsd-zapretili-ispolzovanie-nulevyh-simvolov-v-shell-skriptah","title":{"rendered":"OpenBSD-s on keelatud nullm\u00e4rgiste kasutamine shell-skriptides","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Theo de Raadt tegi muudatuse, mis keelab nullkoodi s\u00fcmboli kasutamise kestevates shell-skriptdes, mida t\u00f6\u00f6tleb vaikimisi kasutatav k\u00e4skluste t\u00f5lgendi ksh. Nulls\u00fcmbolite olemasolu skriptides toob n\u00fc\u00fcd kaasa t\u00e4itmise l\u00f5petamise veateatega, v\u00e4lja arvatud juhul, kui need asuvad failide l\u00f5ppu lisatud andmete seas. Muudatus on lisatud OpenBSD-Current haru, mille alusel luuakse OpenBSD 7.6 v\u00e4ljaanne. <\/p>\n

M\u00e4rgitakse, et selline muudatus v\u00e4listab k\u00e4itumise ebamugavused, mis on seotud nulls\u00fcmboli t\u00f6\u00f6tlemisega C keeles kirjutatud koodis, kus nullbait kasutusele v\u00f5etakse rea l\u00f5pu n\u00e4itamiseks. Uuring nulls\u00fcmboli t\u00f6\u00f6tlemise kohta erinevates shellides on n\u00e4idanud, et igas neist on tuvastatud \u00fcks v\u00f5i mitu juhtumit, kus nullbait sisendis v\u00f5i muutuja sisus p\u00f5hjustas erinevat k\u00e4itumist v\u00f5rreldes teiste shellidega, n\u00e4iteks m\u00f5ned shellid ignoreerisid seda, m\u00f5ned asendasid t\u00fchikuga ja m\u00f5ned l\u00f5petasid skripti edasise anal\u00fc\u00fcsi v\u00f5i l\u00f5petasid selle t\u00e4itmise.
\n
Allikas: 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-s on keelatud nulls\u00fcmbolite kasutamine shell-skriptdes | ProHoster","description":"Theo de Raadt tegi muudatuse, mis keelab nullkoodi s\u00fcmboli kasutamise kestevates shell-skriptdes, mida t\u00f6\u00f6tleb vaikimisi kasutatav k\u00e4skluste t\u00f5lgendi 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