Units
Translation components API.
See the Weblate's Web API documentation for detailed description of the API.
GET /api/translations/documentation/booksdevelopers-handbooksecure_index/en/units/?format=api
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"explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-05-23T12:52:46.215897Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "This chapter describes some of the security issues that have plagued UNIX(R) programmers for decades and some of the new tools available to help programmers avoid writing exploitable code." ], "previous_source": "", "target": [ "This chapter describes some of the security issues that have plagued UNIX(R) programmers for decades and some of the new tools available to help programmers avoid writing exploitable code." ], "id_hash": -7307355481975192136, "content_hash": -7307355481975192136, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:56", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 5, 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"", "note": "type: Title ==", "flags": "no-wrap", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 9, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 2, "source_unit": "https://translate-dev.freebsd.org/api/units/1077812/?format=api", "priority": 100, "id": 1077812, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=8cd054c0d569a68e", "url": "https://translate-dev.freebsd.org/api/units/1077812/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-05-23T12:52:46.385861Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Although stack-based attacks are by far the most common, it would also be possible to overrun the stack with a heap-based (malloc/free) attack." ], "previous_source": "", "target": [ 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"", "pending": false, "timestamp": "2021-05-23T12:52:46.533325Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "The following example code contains a buffer overflow designed to overwrite the return address and skip the instruction immediately following the function call. (Inspired by crossref:bibliography[Phrack,4])" ], "previous_source": "", "target": [ "The following example code contains a buffer overflow designed to overwrite the return address and skip the instruction immediately following the function call. (Inspired by crossref:bibliography[Phrack,4])" ], "id_hash": -1553710882777474856, "content_hash": -1553710882777474856, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:134", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 28, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 26, "source_unit": "https://translate-dev.freebsd.org/api/units/1077826/?format=api", "priority": 100, "id": 1077826, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=6a701c2f1c63d8d8", "url": "https://translate-dev.freebsd.org/api/units/1077826/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-05-23T12:52:46.587940Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "#include <stdio.h>\n" ], "previous_source": "", "target": [ "#include <stdio.h>\n" ], "id_hash": 2500310435173648836, "content_hash": 2500310435173648836, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:138", "context": "", "note": "type: delimited block . 4", "flags": "no-wrap", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 29, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 2, "source_unit": "https://translate-dev.freebsd.org/api/units/1077828/?format=api", "priority": 100, "id": 1077828, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=a2b2e317f4ba49c4", "url": "https://translate-dev.freebsd.org/api/units/1077828/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-05-23T12:52:46.607191Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "void manipulate(char *buffer) {\n char newbuffer[80];\n strcpy(newbuffer,buffer);\n}\n" ], "previous_source": "", "target": [ "void manipulate(char *buffer) {\n char newbuffer[80];\n strcpy(newbuffer,buffer);\n}\n" ], "id_hash": -4367011059406461549, "content_hash": -4367011059406461549, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:143", "context": "", "note": "type: delimited block . 4", "flags": "no-wrap", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 30, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 8, "source_unit": "https://translate-dev.freebsd.org/api/units/1077830/?format=api", "priority": 100, "id": 1077830, "web_url": 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false, "num_words": 7, "source_unit": "https://translate-dev.freebsd.org/api/units/1077832/?format=api", "priority": 100, "id": 1077832, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=65248893986f8db6", "url": "https://translate-dev.freebsd.org/api/units/1077832/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-05-23T12:52:46.683468Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ " while ((buffer[i++] = getchar()) != '\\n') {};\n" ], "previous_source": "", "target": [ " while ((buffer[i++] = getchar()) != '\\n') {};\n" ], "id_hash": 7568940903166651489, "content_hash": 7568940903166651489, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:149", "context": "", "note": "type: delimited block . 4", "flags": "no-wrap", "labels": [], "state": 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UNIX(R) processes do not execute synchronously so logical operations are rarely atomic." ], "id_hash": 434669108076777902, "content_hash": 434669108076777902, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:67", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 8, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 53, "source_unit": "https://translate-dev.freebsd.org/api/units/1194746/?format=api", "priority": 100, "id": 1194746, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=8608414035c091ae", "url": "https://translate-dev.freebsd.org/api/units/1194746/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:06.653468Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Buffer Overflows have been around since the very beginnings of the von Neumann crossref:bibliography[cod,1] architecture. They first gained widespread notoriety in 1988 with the Morris Internet worm. Unfortunately, the same basic attack remains effective today. By far the most common type of buffer overflow attack is based on corrupting the stack." ], "previous_source": "", "target": [ "Buffer Overflows have been around since the very beginnings of the von Neumann crossref:bibliography[cod,1] architecture. They first gained widespread notoriety in 1988 with the Morris Internet worm. Unfortunately, the same basic attack remains effective today. By far the most common type of buffer overflow attack is based on corrupting the stack." ], "id_hash": -141180012742057317, "content_hash": -141180012742057317, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:75", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 10, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 51, "source_unit": "https://translate-dev.freebsd.org/api/units/1194748/?format=api", "priority": 100, "id": 1194748, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=7e0a6d86c31fe29b", "url": "https://translate-dev.freebsd.org/api/units/1194748/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:07.058088Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Most modern computer systems use a stack to pass arguments to procedures and to store local variables. A stack is a last in first out (LIFO) buffer in the high memory area of a process image. When a program invokes a function a new \"stack frame\" is created. This stack frame consists of the arguments passed to the function as well as a dynamic amount of local variable space. The \"stack pointer\" is a register that holds the current location of the top of the stack. Since this value is constantly changing as new values are pushed onto the top of the stack, many implementations also provide a \"frame pointer\" that is located near the beginning of a stack frame so that local variables can more easily be addressed relative to this value. crossref:bibliography[cod,1] The return address for function calls is also stored on the stack, and this is the cause of stack-overflow exploits since overflowing a local variable in a function can overwrite the return address of that function, potentially allowing a malicious user to execute any code he or she wants." ], "previous_source": "", "target": [ "Most modern computer systems use a stack to pass arguments to procedures and to store local variables. A stack is a last in first out (LIFO) buffer in the high memory area of a process image. When a program invokes a function a new \"stack frame\" is created. This stack frame consists of the arguments passed to the function as well as a dynamic amount of local variable space. The \"stack pointer\" is a register that holds the current location of the top of the stack. Since this value is constantly changing as new values are pushed onto the top of the stack, many implementations also provide a \"frame pointer\" that is located near the beginning of a stack frame so that local variables can more easily be addressed relative to this value. crossref:bibliography[cod,1] The return address for function calls is also stored on the stack, and this is the cause of stack-overflow exploits since overflowing a local variable in a function can overwrite the return address of that function, potentially allowing a malicious user to execute any code he or she wants." ], "id_hash": -7602865524022221794, "content_hash": -7602865524022221794, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:84", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 11, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 183, "source_unit": "https://translate-dev.freebsd.org/api/units/1194750/?format=api", "priority": 100, "id": 1194750, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=167d32166d97641e", "url": "https://translate-dev.freebsd.org/api/units/1194750/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:07.357007Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "The C programming language does not perform automatic bounds checking on arrays or pointers as many other languages do. In addition, the standard C library is filled with a handful of very dangerous functions." ], "previous_source": "", "target": [ "The C programming language does not perform automatic bounds checking on arrays or pointers as many other languages do. In addition, the standard C library is filled with a handful of very dangerous functions." ], "id_hash": 5104610697353124957, "content_hash": 5104610697353124957, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:90", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 13, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 34, "source_unit": "https://translate-dev.freebsd.org/api/units/1194752/?format=api", "priority": 100, "id": 1194752, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=c6d7386244645c5d", "url": "https://translate-dev.freebsd.org/api/units/1194752/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:07.571804Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "The most straightforward solution to the problem of stack-overflows is to always use length restricted memory and string copy functions. `strncpy` and `strncat` are part of the standard C library. These functions accept a length value as a parameter which should be no larger than the size of the destination buffer. These functions will then copy up to 'length' bytes from the source to the destination. However there are a number of problems with these functions. Neither function guarantees NUL termination if the size of the input buffer is as large as the destination. The length parameter is also used inconsistently between strncpy and strncat so it is easy for programmers to get confused as to their proper usage. There is also a significant performance loss compared to `strcpy` when copying a short string into a large buffer since `strncpy` NUL fills up the size specified." ], "previous_source": "", "target": [ "The most straightforward solution to the problem of stack-overflows is to always use length restricted memory and string copy functions. `strncpy` and `strncat` are part of the standard C library. These functions accept a length value as a parameter which should be no larger than the size of the destination buffer. These functions will then copy up to 'length' bytes from the source to the destination. However there are a number of problems with these functions. Neither function guarantees NUL termination if the size of the input buffer is as large as the destination. The length parameter is also used inconsistently between strncpy and strncat so it is easy for programmers to get confused as to their proper usage. There is also a significant performance loss compared to `strcpy` when copying a short string into a large buffer since `strncpy` NUL fills up the size specified." ], "id_hash": -4657702395399893570, "content_hash": -4657702395399893570, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:174", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 37, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 146, "source_unit": "https://translate-dev.freebsd.org/api/units/1194754/?format=api", "priority": 100, "id": 1194754, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=3f5c845954b40dbe", "url": "https://translate-dev.freebsd.org/api/units/1194754/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:09.168220Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Another memory copy implementation exists to get around these problems. The `strlcpy` and `strlcat` functions guarantee that they will always null terminate the destination string when given a non-zero length argument." ], "previous_source": "", "target": [ "Another memory copy implementation exists to get around these problems. The `strlcpy` and `strlcat` functions guarantee that they will always null terminate the destination string when given a non-zero length argument." ], "id_hash": -3011669586385604985, "content_hash": -3011669586385604985, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:177", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 38, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 31, "source_unit": "https://translate-dev.freebsd.org/api/units/1194756/?format=api", "priority": 100, "id": 1194756, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=56346677baa36e87", "url": "https://translate-dev.freebsd.org/api/units/1194756/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:09.364890Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Unfortunately there is still a very large assortment of code in public use which blindly copies memory around without using any of the bounded copy routines we just discussed. Fortunately, there is a way to help prevent such attacks - run-time bounds checking, which is implemented by several C/C++ compilers." ], "previous_source": "", "target": [ "Unfortunately there is still a very large assortment of code in public use which blindly copies memory around without using any of the bounded copy routines we just discussed. Fortunately, there is a way to help prevent such attacks - run-time bounds checking, which is implemented by several C/C++ compilers." ], "id_hash": -1009834674466087249, "content_hash": -1009834674466087249, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:182", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 40, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 50, "source_unit": "https://translate-dev.freebsd.org/api/units/1194758/?format=api", "priority": 100, "id": 1194758, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=71fc58b6c2939eaf", "url": "https://translate-dev.freebsd.org/api/units/1194758/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:09.756438Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "ProPolice is one such compiler feature, and is integrated into man:gcc[1] versions 4.1 and later. It replaces and extends the earlier StackGuard man:gcc[1] extension." ], "previous_source": "", "target": [ "ProPolice is one such compiler feature, and is integrated into man:gcc[1] versions 4.1 and later. It replaces and extends the earlier StackGuard man:gcc[1] extension." ], "id_hash": -943732280010171908, "content_hash": -943732280010171908, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:185", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 41, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 24, "source_unit": "https://translate-dev.freebsd.org/api/units/1194760/?format=api", "priority": 100, "id": 1194760, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=72e7307dceec99fc", "url": "https://translate-dev.freebsd.org/api/units/1194760/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:09.948535Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "ProPolice helps to protect against stack-based buffer overflows and other attacks by laying pseudo-random numbers in key areas of the stack before calling any function. When a function returns, these \"canaries\" are checked and if they are found to have been changed the executable is immediately aborted. Thus any attempt to modify the return address or other variable stored on the stack in an attempt to get malicious code to run is unlikely to succeed, as the attacker would have to also manage to leave the pseudo-random canaries untouched." ], "previous_source": "", "target": [ "ProPolice helps to protect against stack-based buffer overflows and other attacks by laying pseudo-random numbers in key areas of the stack before calling any function. When a function returns, these \"canaries\" are checked and if they are found to have been changed the executable is immediately aborted. Thus any attempt to modify the return address or other variable stored on the stack in an attempt to get malicious code to run is unlikely to succeed, as the attacker would have to also manage to leave the pseudo-random canaries untouched." ], "id_hash": -8922128668721752089, "content_hash": -8922128668721752089, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:189", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 42, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 89, "source_unit": "https://translate-dev.freebsd.org/api/units/1194762/?format=api", "priority": 100, "id": 1194762, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=042e3b3f4c82d7e7", "url": "https://translate-dev.freebsd.org/api/units/1194762/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:10.273325Z" }, { "translation": "https://translate-dev.freebsd.org/api/translations/documentation/booksdevelopers-handbooksecure_index/en/?format=api", "source": [ "Compiler-based mechanisms are completely useless for binary-only software for which you cannot recompile. For these situations there are a number of libraries which re-implement the unsafe functions of the C-library (`strcpy`, `fscanf`, `getwd`, etc..) and ensure that these functions can never write past the stack pointer." ], "previous_source": "", "target": [ "Compiler-based mechanisms are completely useless for binary-only software for which you cannot recompile. For these situations there are a number of libraries which re-implement the unsafe functions of the C-library (`strcpy`, `fscanf`, `getwd`, etc..) and ensure that these functions can never write past the stack pointer." ], "id_hash": -8902647950753050222, "content_hash": -8902647950753050222, "location": "documentation/content/en/books/developers-handbook/secure/_index.adoc:196", "context": "", "note": "type: Plain text", "flags": "", "labels": [], "state": 100, "fuzzy": false, "translated": true, "approved": false, "position": 45, "has_suggestion": false, "has_comment": false, "has_failing_check": false, "num_words": 46, "source_unit": "https://translate-dev.freebsd.org/api/units/1194764/?format=api", "priority": 100, "id": 1194764, "web_url": "https://translate-dev.freebsd.org/translate/documentation/booksdevelopers-handbooksecure_index/en/?checksum=047370db67015192", "url": "https://translate-dev.freebsd.org/api/units/1194764/?format=api", "explanation": "", "extra_flags": "", "pending": false, "timestamp": "2021-06-08T11:36:10.653507Z" } ] }