Commit | Line | Data |
---|---|---|
0991566e BJ |
1 | #include "stdio.h" |
2 | freeze(s) char *s; | |
3 | { int fd; | |
4 | unsigned int *len; | |
5 | len = (unsigned int *)sbrk(0); | |
6 | if((fd = creat(s, 0666)) < 0) { | |
7 | perror(s); | |
8 | return(1); | |
9 | } | |
10 | write(fd, &len, sizeof(len)); | |
11 | write(fd, (char *)0, len); | |
12 | close(fd); | |
13 | return(0); | |
14 | } | |
15 | ||
16 | thaw(s) char *s; | |
17 | { int fd; | |
18 | unsigned int *len; | |
19 | if(*s == 0) { | |
20 | fprintf(stderr, "empty restore file\n"); | |
21 | return(1); | |
22 | } | |
23 | if((fd = open(s, 0)) < 0) { | |
24 | perror(s); | |
25 | return(1); | |
26 | } | |
27 | read(fd, &len, sizeof(len)); | |
28 | (void) brk(len); | |
29 | read(fd, (char *)0, len); | |
30 | close(fd); | |
31 | return(0); | |
32 | } |