tools/rpmheader.c


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/* rpmheader: spit out the header portion of a package */

#include "system.h"

#include "rpmlead.h"
#include "signature.h"
#include "header.h"

int main(int argc, char **argv)
{
    FD_t fdi, fdo;
    struct rpmlead lead;
    Header hd;
    int rc;
    
    setprogname(argv[0]);	/* Retrofit glibc __progname */
    if (argc == 1) {
	fdi = Fopen("-", "r.ufdio");
    } else {
	fdi = Fopen(argv[1], "r.ufdio");
    }

    if (fdi == NULL || Ferror(fdi)) {
	perror("input");
	exit(EXIT_FAILURE);
    }

    readLead(fdi, &lead);
    rpmReadSignature(fdi, NULL, lead.signature_type);
    hd = headerRead(fdi, (lead.major >= 3) ?
		    HEADER_MAGIC_YES : HEADER_MAGIC_NO);
    fdo = Fopen("-", "w.ufdio");
    rc = headerWrite(fdo, hd, HEADER_MAGIC_YES);
    
    return rc;
}