63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/** \ingroup lead
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* \file lib/rpmlead.c
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*/
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#include "system.h"
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#include <netinet/in.h>
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#include <rpmlib.h>
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#include "signature.h"
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#include "rpmlead.h"
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#include "debug.h"
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static unsigned char lead_magic[] = {
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RPMLEAD_MAGIC0, RPMLEAD_MAGIC1, RPMLEAD_MAGIC2, RPMLEAD_MAGIC3
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};
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/* The lead needs to be 8 byte aligned */
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rpmRC writeLead(FD_t fd, const struct rpmlead *lead)
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{
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struct rpmlead l;
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memcpy(&l, lead, sizeof(l));
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memcpy(&l.magic, lead_magic, sizeof(l.magic));
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l.type = htons(l.type);
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l.archnum = htons(l.archnum);
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l.osnum = htons(l.osnum);
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l.signature_type = htons(l.signature_type);
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if (Fwrite(&l, 1, sizeof(l), fd) != sizeof(l))
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return RPMRC_FAIL;
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return RPMRC_OK;
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}
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rpmRC readLead(FD_t fd, struct rpmlead *lead)
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{
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memset(lead, 0, sizeof(*lead));
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/* FIX: remove timed read */
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if (timedRead(fd, (char *)lead, sizeof(*lead)) != sizeof(*lead)) {
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if (Ferror(fd)) {
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rpmlog(RPMERR_READ, _("read failed: %s (%d)\n"),
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Fstrerror(fd), errno);
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return RPMRC_FAIL;
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}
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return RPMRC_NOTFOUND;
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}
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if (memcmp(lead->magic, lead_magic, sizeof(lead_magic)))
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return RPMRC_NOTFOUND;
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lead->type = ntohs(lead->type);
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lead->archnum = ntohs(lead->archnum);
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lead->osnum = ntohs(lead->osnum);
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lead->signature_type = ntohs(lead->signature_type);
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if (lead->signature_type != RPMSIGTYPE_HEADERSIG)
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return RPMRC_NOTFOUND;
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return RPMRC_OK;
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}
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