ref: 8c57331b9b7c3e7013fb6fd95b14271bff7f7001
dir: /sys/src/libc/9sys/procsetname.c/
#include <u.h> #include <libc.h> void procsetname(char *fmt, ...) { int fd, n; char buf[128]; va_list arg; snprint(buf, sizeof buf, "#p/%lud/args", (ulong)getpid()); if((fd = open(buf, OWRITE)) < 0) return; va_start(arg, fmt); n = vsnprint(buf, sizeof buf, fmt, arg); va_end(arg); write(fd, buf, n+1); close(fd); }