From e5888a1ffdae813d7575f5fb02275c6bb07e5199 Mon Sep 17 00:00:00 2001 From: Taru Karttunen Date: Wed, 30 Mar 2011 15:46:40 +0300 Subject: Import sources from 2011-03-30 iso image --- sys/src/libstdio/_IO_getc.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100755 sys/src/libstdio/_IO_getc.c (limited to 'sys/src/libstdio/_IO_getc.c') diff --git a/sys/src/libstdio/_IO_getc.c b/sys/src/libstdio/_IO_getc.c new file mode 100755 index 000000000..b6ab110c0 --- /dev/null +++ b/sys/src/libstdio/_IO_getc.c @@ -0,0 +1,26 @@ +/* + * pANS stdio -- _IO_getc + */ +#include "iolib.h" +int _IO_getc(FILE *f){ + int cnt; + switch(f->state){ + default: /* CLOSED, WR, ERR, EOF */ + return EOF; + case OPEN: + _IO_setvbuf(f); + case RDWR: + case RD: + if(f->flags&STRING) return EOF; + cnt=read(f->fd, f->buf, f->buf==f->unbuf?1:f->bufl); + switch(cnt){ + case -1: f->state=ERR; return EOF; + case 0: f->state=END; return EOF; + default: + f->state=RD; + f->rp=f->buf; + f->wp=f->buf+cnt; + return (*f->rp++)&_IO_CHMASK; + } + } +} -- cgit v1.2.3