github.com/afumu/libc@v0.0.6/musl/src/conf/confstr.c (about)

     1  #include <unistd.h>
     2  #include <stdio.h>
     3  #include <errno.h>
     4  
     5  size_t confstr(int name, char *buf, size_t len)
     6  {
     7  	const char *s = "";
     8  	if (!name) {
     9  		s = "/bin:/usr/bin";
    10  	} else if ((name&~4U)!=1 && name-_CS_POSIX_V6_ILP32_OFF32_CFLAGS>33U) {
    11  		errno = EINVAL;
    12  		return 0;
    13  	}
    14  	// snprintf is overkill but avoid wasting code size to implement
    15  	// this completely useless function and its truncation semantics
    16  	return snprintf(buf, len, "%s", s) + 1;
    17  }