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LibC: Add missing spec links for string APIs

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This commit is contained in:
Emily Trau 2023-06-04 16:49:09 -07:00 • committed by Andreas Kling
parent 04b06afd39
commit e6970ec5f4
1 changed files with 7 additions and 0 deletions
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7
Userland/Libraries/LibC/string.cpp
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@ -126,6 +126,8 @@ int memcmp(void const* v1, void const* v2, size_t n)
return 0; return 0;
} }
// Not in POSIX, originated in BSD
// https://man.openbsd.org/timingsafe_memcmp.3
int timingsafe_memcmp(void const* b1, void const* b2, size_t len) int timingsafe_memcmp(void const* b1, void const* b2, size_t len)
{ {
return AK::timing_safe_compare(b1, b2, len) ? 1 : 0; return AK::timing_safe_compare(b1, b2, len) ? 1 : 0;
@ -201,6 +203,8 @@ char* strncpy(char* dest, char const* src, size_t n)
return dest; return dest;
} }
// Not in POSIX, originated in BSD but also supported on Linux.
// https://man.openbsd.org/strlcpy.3
size_t strlcpy(char* dest, char const* src, size_t n) size_t strlcpy(char* dest, char const* src, size_t n)
{ {
size_t i; size_t i;
@ -232,6 +236,7 @@ char* index(char const* str, int c)
return strchr(str, c); return strchr(str, c);
} }
// https://linux.die.net/man/3/strchrnul (GNU extension)
char* strchrnul(char const* str, int c) char* strchrnul(char const* str, int c)
{ {
char ch = c; char ch = c;
@ -485,6 +490,8 @@ char* strsep(char** str, char const* delim)
return begin; return begin;
} }
// Not in POSIX, originated in BSD but also supported on Linux.
// https://man.openbsd.org/explicit_bzero.3
void explicit_bzero(void* ptr, size_t size) void explicit_bzero(void* ptr, size_t size)
{ {
secure_zero(ptr, size); secure_zero(ptr, size);