diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libstdio/fgetc_unlocked.c')
-rw-r--r-- | mdk-stage1/dietlibc/libstdio/fgetc_unlocked.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libstdio/fgetc_unlocked.c b/mdk-stage1/dietlibc/libstdio/fgetc_unlocked.c new file mode 100644 index 000000000..5136c8df1 --- /dev/null +++ b/mdk-stage1/dietlibc/libstdio/fgetc_unlocked.c @@ -0,0 +1,30 @@ +#include "dietstdio.h" +#include <unistd.h> + +int fgetc_unlocked(FILE *stream) { + unsigned char c; + if (stream->ungotten) { + stream->ungotten=0; + return stream->ungetbuf; + } + if (feof(stream)) + return EOF; + if (__fflush4(stream,BUFINPUT)) return EOF; + if (stream->bm>=stream->bs) { + int len=read(stream->fd,stream->buf,stream->buflen); + if (len==0) { + stream->flags|=EOFINDICATOR; + return EOF; + } else if (len<0) { + stream->flags|=ERRORINDICATOR; + return EOF; + } + stream->bm=0; + stream->bs=len; + } + c=stream->buf[stream->bm]; + ++stream->bm; + return c; +} + +int fgetc(FILE* stream) __attribute__((weak,alias("fgetc_unlocked"))); |