commit - ad95037a488aee537c4e1f6fb5aaedfddc0e0d6e
commit + 55d98d64b8352383ba4653f4baf5dc109e434ca2
blob - 2e70399e25e5b10a4f0ccdfa374ab0fb2fb28bf1
blob + 689e00ee0f972953e5f00734c77d725c7c3d6498
--- src/cmd/9p.c
+++ src/cmd/9p.c
threadexitsall("usage");
}
+int
+writen(int fd, void *buf, int n)
+{
+ long m, tot;
+
+ for(tot=0; tot<n; tot+=m){
+ m = n - tot;
+ if(m > 8192)
+ m = 8192;
+ if(write(fd, (uchar*)buf+tot, m) != m)
+ break;
+ }
+ return tot;
+}
+
CFsys *(*nsmnt)(char*, char*) = nsamount;
CFsys *(*fsmnt)(int, char*) = fsamount;
fid = xopen(argv[0], OREAD);
while((n = fsread(fid, buf, sizeof buf)) > 0)
- write(1, buf, n);
+ if(writen(1, buf, n) < 0)
+ sysfatal("write error: %r");
fsclose(fid);
if(n < 0)
sysfatal("read error: %r");
fd = xopenfd(argv[0], OREAD);
while((n = read(fd, buf, sizeof buf)) > 0)
- write(1, buf, n);
+ if(writen(1, buf, n) < 0)
+ sysfatal("write error: %r");
if(n < 0)
sysfatal("read error: %r");
threadexitsall(0);
fd = xopenfd(argv[0], OWRITE|OTRUNC);
while((n = read(0, buf, sizeof buf)) > 0)
- if(write(fd, buf, n) != n)
+ if(writen(fd, buf, n) != n)
sysfatal("write error: %r");
if(n < 0)
sysfatal("read error: %r");
if((n = fsread(fid, buf, sizeof buf)) < 0)
fprint(2, "read: %r\n");
else{
- write(1, buf, n);
- write(1, "\n", 1);
+ if(writen(1, buf, n) < 0 || writen(1, "\n", 1) < 0)
+ sysfatal("write error: %r");
}
n = read(0, buf, sizeof buf);
if(n <= 0)