strnlen(9) [centos man page]
STRNLEN(9) Basic C Library Functions STRNLEN(9) NAME
strnlen - Find the length of a length-limited string SYNOPSIS
size_t strnlen(const char * s, size_t count); ARGUMENTS
s The string to be sized count The maximum number of bytes to search COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRNLEN(9)
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STRNLEN(3) Linux Programmer's Manual STRNLEN(3) NAME
strnlen - determine the length of a fixed-size string SYNOPSIS
#include <string.h> size_t strnlen(const char *s, size_t maxlen); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strnlen(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE DESCRIPTION
The strnlen() function returns the number of characters in the string pointed to by s, excluding the terminating null byte ('