readn.c - 9base - revived minimalist port of Plan 9 userland to Unix | |
git clone git://git.suckless.org/9base | |
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readn.c (219B) | |
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1 #include <lib9.h> | |
2 | |
3 long | |
4 readn(int f, void *av, long n) | |
5 { | |
6 char *a; | |
7 long m, t; | |
8 | |
9 a = av; | |
10 t = 0; | |
11 while(t < n){ | |
12 m = read(f, a+t, n-t); | |
13 if(m <= 0){ | |
14 if(t == 0) | |
15 return m; | |
16 break; | |
17 } | |
18 t += m; | |
19 } | |
20 return t; | |
21 } |