ref: a0cc369c15bdd404e1a60b4fd5b3a5156a041f74
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); } }