Swap 2nd and 3rd arg to Fread/Fwrite to preserve read/write type return.
[platform/upstream/rpm.git] / lib / rpmlead.c
1 #include "system.h"
2
3 #if HAVE_MACHINE_TYPES_H
4 # include <machine/types.h>
5 #endif
6
7 #ifdef  __LCLINT__
8 #define ntohl(_x)       (_x)
9 #define ntohs(_x)       (_x)
10 #define htonl(_x)       (_x)
11 #define htons(_x)       (_x)
12 #else
13 #include <netinet/in.h>
14 #endif  /* __LCLINT__ */
15
16 #include <rpmlib.h>
17
18 #include "rpmlead.h"
19
20 /* The lead needs to be 8 byte aligned */
21
22 int writeLead(FD_t fd, struct rpmlead *lead)
23 {
24     struct rpmlead l;
25
26     memcpy(&l, lead, sizeof(*lead));
27     
28     l.magic[0] = RPMLEAD_MAGIC0;
29     l.magic[1] = RPMLEAD_MAGIC1;
30     l.magic[2] = RPMLEAD_MAGIC2;
31     l.magic[3] = RPMLEAD_MAGIC3;
32
33     l.type = htons(l.type);
34     l.archnum = htons(l.archnum);
35     l.osnum = htons(l.osnum);
36     l.signature_type = htons(l.signature_type);
37         
38     if (Fwrite(&l, sizeof(char), sizeof(l), fd) < 0) {
39         return 1;
40     }
41
42     return 0;
43 }
44
45 int readLead(FD_t fd, struct rpmlead *lead)
46 {
47     if (timedRead(fd, (char *)lead, sizeof(*lead)) != sizeof(*lead)) {
48         rpmError(RPMERR_READERROR, _("read failed: %s (%d)"), Fstrerror(fd), 
49               errno);
50         return 1;
51     }
52
53     lead->type = ntohs(lead->type);
54     lead->archnum = ntohs(lead->archnum);
55     lead->osnum = ntohs(lead->osnum);
56
57     if (lead->major >= 2)
58         lead->signature_type = ntohs(lead->signature_type);
59
60     return 0;
61 }
62