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/* rpmarchive: spit out the main archive portion of a package */
#include "system.h"
#include "rpmlib.h"
int main(int argc, char **argv)
{
FD_t fdi, fdo;
Header hd;
int rc, isSource;
char buffer[1024];
int ct;
FD_t gzdi;
setprogname(argv[0]); /* Retrofit glibc __progname */
if (argc == 1) {
fdi = fdDup(STDIN_FILENO);
} else {
fdi = fdOpen(argv[1], O_RDONLY, 0644);
}
if (fdFileno(fdi) < 0) {
perror("cannot open package");
exit(EXIT_FAILURE);
}
fdo = fdDup(STDOUT_FILENO);
rc = rpmReadPackageHeader(fdi, &hd, &isSource, NULL, NULL);
switch (rc) {
case 0:
break;
case 1:
fprintf(stderr, _("argument is not an RPM package\n"));
exit(EXIT_FAILURE);
break;
default:
fprintf(stderr, _("error reading header from package\n"));
exit(EXIT_FAILURE);
break;
}
gzdi = gzdFdopen(fdi, "r"); /* XXX gzdi == fdi */
while ((ct = gzdRead(gzdi, &buffer, sizeof(buffer))) > 0) {
fdWrite(fdo, &buffer, ct);
}
if (ct < 0) {
fprintf (stderr, "rpm2cpio: zlib: %s\n", gzdStrerror(gzdi));
rc = EXIT_FAILURE;
} else {
rc = EXIT_SUCCESS;
}
gzdClose(gzdi); /* XXX gzdi == fdi */
return rc;
}
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