From de47eb59bb829423b1d0f47ba13099073999b3cb Mon Sep 17 00:00:00 2001 From: Nicolas Planel Date: Wed, 29 Oct 2003 16:07:11 +0000 Subject: Corporate Server 2.1.1 release --- mdk-stage1/dietlibc/libstdio/setvbuf.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) (limited to 'mdk-stage1/dietlibc/libstdio/setvbuf.c') diff --git a/mdk-stage1/dietlibc/libstdio/setvbuf.c b/mdk-stage1/dietlibc/libstdio/setvbuf.c index d0b1b7640..b8b50addf 100644 --- a/mdk-stage1/dietlibc/libstdio/setvbuf.c +++ b/mdk-stage1/dietlibc/libstdio/setvbuf.c @@ -1,18 +1,34 @@ #include #include "dietstdio.h" #include +#include #include "dietwarning.h" -int setvbuf(FILE *stream, char *buf, int flags , size_t size) { -#ifdef WANT_BUFFERED_STDIO +static int set_flags (FILE *stream, int flags) { switch (flags) { - case _IONBF: stream->flags = (stream->flags & ~(BUFLINEWISE)) | NOBUF; break; - case _IOLBF: stream->flags = (stream->flags & ~(BUFLINEWISE|NOBUF)) | BUFLINEWISE; break; - case _IOFBF: stream->flags = stream->flags & ~(NOBUF | BUFLINEWISE); break; - default: return -1; + case _IONBF: stream->flags = (stream->flags & ~(BUFLINEWISE)) | NOBUF; break; + case _IOLBF: stream->flags = (stream->flags & ~(NOBUF)) | BUFLINEWISE; break; + case _IOFBF: stream->flags = stream->flags & ~(NOBUF | BUFLINEWISE); break; + default: return -1; } -#endif return 0; } -link_warning("setvbuf","setvbuf does not implement changing the buffer in diet libc.") +int setvbuf(FILE *stream, char *buf, int flags, size_t size) { + if (buf) { + if (!(stream->flags&STATICBUF)) free(stream->buf); + stream->buf=buf; + } + else { + char *tmp; + if (!size) { + return set_flags(stream,flags); + } + if (!(tmp=malloc(size))) return -1; + if (!(stream->flags&STATICBUF)) free(stream->buf); + stream->buf=tmp; + } + stream->buflen=size; + stream->bm=stream->bs=0; + return set_flags(stream,flags); +} -- cgit v1.2.1