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Mock - optionally hide locally implemented funcs
glibc 2.38 includes strlcpy and strlcat, attempt to detect them before use
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,84 +1,78 @@ | ||
| // https://gist.github.com/Fonger/98cc95ac39fbe1a7e4d9 | ||
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| #ifndef HAVE_STRLCAT | ||
| /* | ||
| '_cups_strlcat()' - Safely concatenate two strings. | ||
| */ | ||
|
|
||
| size_t /* O - Length of string */ | ||
| strlcat(char* dst, /* O - Destination string */ | ||
| const char* src, /* I - Source string */ | ||
| size_t size) /* I - Size of destination string buffer */ | ||
| #include <cstddef> | ||
| #include <cstdlib> | ||
| #include <cstring> | ||
|
|
||
| extern "C" | ||
| { | ||
| size_t srclen; /* Length of source string */ | ||
| size_t dstlen; /* Length of destination string */ | ||
| #ifndef HAVE_STRLCAT | ||
| // '_cups_strlcat()' - Safely concatenate two strings. | ||
|
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||
| /* | ||
| Figure out how much room is left... | ||
| */ | ||
| size_t /* O - Length of string */ | ||
| strlcat(char* dst, /* O - Destination string */ | ||
| const char* src, /* I - Source string */ | ||
| size_t size) /* I - Size of destination string buffer */ | ||
| { | ||
| size_t srclen; /* Length of source string */ | ||
| size_t dstlen; /* Length of destination string */ | ||
|
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| dstlen = strlen(dst); | ||
| size -= dstlen + 1; | ||
| // Figure out how much room is left... | ||
|
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| if (!size) | ||
| { | ||
| return (dstlen); /* No room, return immediately... */ | ||
| } | ||
| dstlen = strlen(dst); | ||
| size -= dstlen + 1; | ||
|
|
||
| /* | ||
| Figure out how much room is needed... | ||
| */ | ||
| if (!size) | ||
| { | ||
| return (dstlen); /* No room, return immediately... */ | ||
| } | ||
|
|
||
| srclen = strlen(src); | ||
| // Figure out how much room is needed... | ||
|
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| /* | ||
| Copy the appropriate amount... | ||
| */ | ||
| srclen = strlen(src); | ||
|
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| if (srclen > size) | ||
| { | ||
| srclen = size; | ||
| } | ||
| // Copy the appropriate amount... | ||
|
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| if (srclen > size) | ||
| { | ||
| srclen = size; | ||
| } | ||
|
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| memcpy(dst + dstlen, src, srclen); | ||
| dst[dstlen + srclen] = '\0'; | ||
| memcpy(dst + dstlen, src, srclen); | ||
| dst[dstlen + srclen] = '\0'; | ||
|
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| return (dstlen + srclen); | ||
| } | ||
| return (dstlen + srclen); | ||
| } | ||
| #endif /* !HAVE_STRLCAT */ | ||
|
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||
| #ifndef HAVE_STRLCPY | ||
| /* | ||
| '_cups_strlcpy()' - Safely copy two strings. | ||
| */ | ||
|
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||
| size_t /* O - Length of string */ | ||
| strlcpy(char* dst, /* O - Destination string */ | ||
| const char* src, /* I - Source string */ | ||
| size_t size) /* I - Size of destination string buffer */ | ||
| { | ||
| size_t srclen; /* Length of source string */ | ||
| // '_cups_strlcpy()' - Safely copy two strings. | ||
|
|
||
| /* | ||
| Figure out how much room is needed... | ||
| */ | ||
| size_t /* O - Length of string */ | ||
| strlcpy(char* dst, /* O - Destination string */ | ||
| const char* src, /* I - Source string */ | ||
| size_t size) /* I - Size of destination string buffer */ | ||
| { | ||
| size_t srclen; /* Length of source string */ | ||
|
|
||
| size--; | ||
| // Figure out how much room is needed... | ||
|
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| srclen = strlen(src); | ||
| size--; | ||
|
|
||
| /* | ||
| Copy the appropriate amount... | ||
| */ | ||
| srclen = strlen(src); | ||
|
|
||
| if (srclen > size) | ||
| { | ||
| srclen = size; | ||
| } | ||
| // Copy the appropriate amount... | ||
|
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||
| if (srclen > size) | ||
| { | ||
| srclen = size; | ||
| } | ||
|
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| memcpy(dst, src, srclen); | ||
| dst[srclen] = '\0'; | ||
| memcpy(dst, src, srclen); | ||
| dst[srclen] = '\0'; | ||
|
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| return (srclen); | ||
| } | ||
| return (srclen); | ||
| } | ||
| #endif /* !HAVE_STRLCPY */ | ||
|
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||
| } // extern "C" |
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