ref: 6fa3e08412c49a188e2abe7d9ee54cd1f37a85f5
dir: /sys/src/libhttpd/lower.c/
#include <u.h> #include <libc.h> #include <bin.h> #include <httpd.h> char* hlower(char *p) { char c; char *x; if(p == nil) return p; for(x = p; c = *x; x++) if(c >= 'A' && c <= 'Z') *x -= 'A' - 'a'; return p; }