ref: c1d40df49550393f3afe53fb6e6d500dfa8eb7a8
dir: /sys/src/libc/9sys/setnetmtpt.c/
#include <u.h> #include <libc.h> void setnetmtpt(char *net, int n, char *x) { if(x == nil) x = "/net"; if(*x == '/'){ strncpy(net, x, n); net[n-1] = 0; } else { snprint(net, n, "/net%s", x); } }