twrite.c - plan9port - [fork] Plan 9 from user space
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twrite.c (260B)
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1 #include <u.h>
2 #define NOPLAN9DEFINES
3 #include <libc.h>
4
5 long
6 p9write(int f, void *av, long n)
7 {
8 char *a;
9 long m, t;
10
11 a = av;
12 t = 0;
13 while(t < n){
14 m = write(f, a+t, n-t);
15 if(m <= 0){
16 if(t == 0)
17 return m;
18 break;
19 }
20 t += m;
21 }
22 return t;
23 }