tadd print - plan9port - [fork] Plan 9 from user space

git clone git://src.adamsgaard.dk/plan9port

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---

commit 5a1e9de7b160033e85a77ad4c60193186364a2fb

parent 4ca53ff0e0398171fe9afb1e989b97b30d3d584f

Author: rsc 

Date:   Wed,  8 Feb 2006 21:21:01 +0000

add print

Diffstat:
  M include/9pclient.h                  |       3 +++
  M src/lib9pclient/mkfile              |       1 +
  A src/lib9pclient/print.c             |      67 +++++++++++++++++++++++++++++++

3 files changed, 71 insertions(+), 0 deletions(-)
---

diff --git a/include/9pclient.h b/include/9pclient.h

t@@ -44,6 +44,9 @@ CFid *nsopen(char*, char*, char*, int);
 int        fsfremove(CFid*);
 int        fsremove(CFsys*, char*);
 CFid *fscreate(CFsys*, char*, int, ulong);
+int fsaccess(CFsys*, char*, int);
+int        fsvprint(CFid*, char*, va_list);
+int        fsprint(CFid*, char*, ...);
 
 extern int chatty9pclient;
 

diff --git a/src/lib9pclient/mkfile b/src/lib9pclient/mkfile

t@@ -12,6 +12,7 @@ OFILES=\
         ns.$O\
         open.$O\
         openfd.$O\
+        print.$O\
         read.$O\
         remove.$O\
         seek.$O\

diff --git a/src/lib9pclient/print.c b/src/lib9pclient/print.c

t@@ -0,0 +1,67 @@
+#include 
+#include 
+#include 
+#include <9pclient.h>
+
+/* C99 nonsense */
+#ifdef va_copy
+#        define VA_COPY(a,b) va_copy(a,b)
+#        define VA_END(a) va_end(a)
+#else
+#        define VA_COPY(a,b) (a) = (b)
+#        define VA_END(a)
+#endif
+
+static int
+fidflush(Fmt *f)
+{
+        int n;
+
+        n = (char*)f->to - (char*)f->start;
+        if(n && fswrite(f->farg, f->start, n) != n)
+                return 0;
+        f->to = f->start;
+        return 1;
+}
+
+static int
+fsfmtfidinit(Fmt *f, CFid *fid, char *buf, int size)
+{
+        f->runes = 0;
+        f->start = buf;
+        f->to = buf;
+        f->stop = buf + size;
+        f->flush = fidflush;
+        f->farg = fid;
+        f->nfmt = 0;
+        return 0;
+}
+
+int
+fsprint(CFid *fd, char *fmt, ...)
+{
+        int n;
+        va_list args;
+
+        va_start(args, fmt);
+        n = fsvprint(fd, fmt, args);
+        va_end(args);
+        return n;
+}
+
+int
+fsvprint(CFid *fd, char *fmt, va_list args)
+{
+        Fmt f;
+        char buf[256];
+        int n;
+
+        fsfmtfidinit(&f, fd, buf, sizeof(buf));
+        VA_COPY(f.args,args);
+        n = dofmt(&f, fmt);
+        VA_END(f.args);
+        if(n > 0 && fidflush(&f) == 0)
+                return -1;
+        return n;
+}
+