github.com/afumu/libc@v0.0.6/musl/src/unistd/gethostname.c (about)

     1  #include <unistd.h>
     2  #include <sys/utsname.h>
     3  
     4  int gethostname(char *name, size_t len)
     5  {
     6  	size_t i;
     7  	struct utsname uts;
     8  	if (uname(&uts)) return -1;
     9  	if (len > sizeof uts.nodename) len = sizeof uts.nodename;
    10  	for (i=0; i<len && (name[i] = uts.nodename[i]); i++);
    11  	if (i && i==len) name[i-1] = 0;
    12  	return 0;
    13  }