rpm/lib/rpmlead.c

56 lines
1.1 KiB
C

#include "system.h"
#if HAVE_MACHINE_TYPES_H
# include <machine/types.h>
#endif
#include <netinet/in.h>
#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 (fdWrite(fd, &l, sizeof(l)) < 0) {
return 1;
}
return 0;
}
int readLead(FD_t fd, struct rpmlead *lead)
{
if (timedRead(fd, lead, sizeof(*lead)) != sizeof(*lead)) {
rpmError(RPMERR_READERROR, _("read failed: %s (%d)"), strerror(errno),
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;
}