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/** \ingroup lead
* \file lib/rpmlead.c
*/
#include "system.h"
#if HAVE_MACHINE_TYPES_H
# include <machine/types.h>
#endif
#ifdef __LCLINT__
#define ntohl(_x) (_x)
#define ntohs(_x) (_x)
#define htonl(_x) (_x)
#define htons(_x) (_x)
#else
#include <netinet/in.h>
#endif /* __LCLINT__ */
#include <rpmlib.h>
#include "rpmlead.h"
/* The lead needs to be 8 byte aligned */
int writeLead(FD_t fd, struct rpmlead *lead)
{
struct rpmlead l;
memcpy(&l, lead, sizeof(*lead));
l.magic[0] = RPMLEAD_MAGIC0;
l.magic[1] = RPMLEAD_MAGIC1;
l.magic[2] = RPMLEAD_MAGIC2;
l.magic[3] = RPMLEAD_MAGIC3;
l.type = htons(l.type);
l.archnum = htons(l.archnum);
l.osnum = htons(l.osnum);
l.signature_type = htons(l.signature_type);
if (Fwrite(&l, sizeof(char), sizeof(l), fd) < 0) {
return 1;
}
return 0;
}
int readLead(FD_t fd, struct rpmlead *lead)
{
if (timedRead(fd, (char *)lead, sizeof(*lead)) != sizeof(*lead)) {
rpmError(RPMERR_READ, _("read failed: %s (%d)"), Fstrerror(fd),
errno);
return 1;
}
lead->type = ntohs(lead->type);
lead->archnum = ntohs(lead->archnum);
lead->osnum = ntohs(lead->osnum);
if (lead->major >= 2)
lead->signature_type = ntohs(lead->signature_type);
return 0;
}
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