ref: 87de3d34335e20fdb2ad2c471f89173aa6610193
dir: /sys/src/cmd/ext2srv/chat.c/
#include <u.h> #include <libc.h> #include <fcall.h> #include <thread.h> #include <9p.h> #include "dat.h" #include "fns.h" #define SIZE 1024 #define DOTDOT (&fmt+1) int chatty; void chat(char *fmt, ...) { char buf[SIZE], *out; va_list arg; if (!chatty) return; va_start(arg, fmt); out = vseprint(buf, buf+sizeof(buf), fmt, arg); va_end(arg); write(2, buf, (long)(out-buf)); } void mchat(char *fmt, ...) { char buf[SIZE], *out; va_list arg; va_start(arg, fmt); out = vseprint(buf, buf+sizeof(buf), fmt, arg); va_end(arg); write(2, buf, (long)(out-buf)); } void panic(char *fmt, ...) { char buf[SIZE]; va_list arg; int n; n = sprint(buf, "%s %d: panic ", argv0, getpid()); va_start(arg, fmt); vseprint(buf+n, buf+sizeof(buf)-n, fmt, arg); va_end(arg); fprint(2, "%s: %r\n", buf); exits("panic"); }