get network interface names and indexes NAME if_nameindex, if_freenameindex - get network interface names and indexes LIBRARY Standard C library ( libc , -lc ) SYNOP...get network interface names and indexes NAME if_nameindex, if_freenameindex - get network interface names and indexes LIBRARY Standard C library ( libc , -lc ) SYNOP...mappings between network interface names and indexes NAME if_nametoindex, if_indextoname - mappings between network interface names and indexes LIBRARY Standard C library ( libc , …mappings between network interface names and indexes NAME if_nametoindex, if_indextoname - mappings between network interface names and indexes LIBRARY Standard C library ( libc , …match filename or pathname NAME fnmatch - match filename or pathname LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fnmatch.h> int fnmatch(const char * pattern , cons…power functions NAME pow, powf, powl - power functions LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double pow(double x , double y ); float powf(float x , float y…power functions NAME pow, powf, powl - power functions LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double pow(double x , double y ); float powf(float x , float y…power functions NAME pow, powf, powl - power functions LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double pow(double x , double y ); float powf(float x , float y…determine number of bytes in next multibyte character NAME mblen - determine number of bytes in next multibyte character LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include…get attributes of created thread NAME pthread_getattr_np - get attributes of created thread LIBRARY POSIX threads library ( libpthread , -lpthread ) SYNOPSIS #define _GNU_SOURCE /*…arc tangent function of two variables NAME atan2, atan2f, atan2l - arc tangent function of two variables LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double atan2…arc tangent function of two variables NAME atan2, atan2f, atan2l - arc tangent function of two variables LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double atan2…arc tangent function of two variables NAME atan2, atan2f, atan2l - arc tangent function of two variables LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <math.h> double atan2…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…Parse command-line options NAME getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt - Parse command-line options LIBRARY Standard C library ( libc , -lc ) SYNOPSI…