Plan 9 from Bell Labs’s /usr/web/sources/patch/ape-erik/sopenw.c
/* * pANS stdio -- sopenw */ #include "iolib.h" FILE *_IO_sopenw(void){ FILE *f; if((f=_IO_newfile())==NULL) return NULL; f->buf=f->rp=f->wp=0; f->state=OPEN; f->flags=STRING; f->fd=-1; return f; }