Commit | Line | Data |
---|---|---|
d1fbdce9 KM |
1 | /* freeze.c 4.1 82/05/07 */ |
2 | ||
3 | #include "stdio.h" | |
4 | freeze(s) char *s; | |
5 | { int fd; | |
6 | unsigned int *len; | |
7 | len = (unsigned int *)sbrk(0); | |
8 | if((fd = creat(s, 0666)) < 0) { | |
9 | perror(s); | |
10 | return(1); | |
11 | } | |
12 | write(fd, &len, sizeof(len)); | |
13 | write(fd, (char *)0, len); | |
14 | close(fd); | |
15 | return(0); | |
16 | } | |
17 | ||
18 | thaw(s) char *s; | |
19 | { int fd; | |
20 | unsigned int *len; | |
21 | if(*s == 0) { | |
22 | fprintf(stderr, "empty restore file\n"); | |
23 | return(1); | |
24 | } | |
25 | if((fd = open(s, 0)) < 0) { | |
26 | perror(s); | |
27 | return(1); | |
28 | } | |
29 | read(fd, &len, sizeof(len)); | |
30 | (void) brk(len); | |
31 | read(fd, (char *)0, len); | |
32 | close(fd); | |
33 | return(0); | |
34 | } |