/* rpmarchive: spit out the main archive portion of a package */
#include "system.h"
-const char *__progname;
#include <rpm/rpmlib.h> /* rpmReadPackageFile .. */
#include <rpm/rpmtag.h>
#include <rpm/rpmpgp.h>
#include <rpm/rpmts.h>
+#include <unistd.h>
#include "debug.h"
{
FD_t fdi, fdo;
Header h;
- char * rpmio_flags;
- rpmRC rc;
+ char * rpmio_flags = NULL;
+ int rc;
+ off_t payload_size;
FD_t gzdi;
- setprogname(argv[0]); /* Retrofit glibc __progname */
+ xsetprogname(argv[0]); /* Portability call -- see system.h */
+
+ rpmReadConfigFiles(NULL, NULL);
if (argc == 1)
fdi = fdDup(STDIN_FILENO);
- else
+ else {
+ if (rstreq(argv[1], "-h") || rstreq(argv[1], "--help")) {
+ fprintf(stderr, "Usage: rpm2cpio file.rpm\n");
+ exit(EXIT_FAILURE);
+ }
fdi = Fopen(argv[1], "r.ufdio");
+ }
if (Ferror(fdi)) {
fprintf(stderr, "%s: %s: %s\n", argv[0],
(argc == 1 ? "<stdin>" : argv[1]), Fstrerror(fdi));
exit(EXIT_FAILURE);
}
+ if (isatty(STDOUT_FILENO)) {
+ fprintf(stderr, "Error: refusing to output cpio data to a terminal.\n");
+ exit(EXIT_FAILURE);
+ }
fdo = fdDup(STDOUT_FILENO);
- rpmReadConfigFiles(NULL, NULL);
{ rpmts ts = rpmtsCreate();
rpmVSFlags vsflags = 0;
vsflags |= RPMVSF_NOHDRCHK;
(void) rpmtsSetVSFlags(ts, vsflags);
- /* LCL: segfault */
rc = rpmReadPackageFile(ts, fdi, "rpm2cpio", &h);
ts = rpmtsFree(ts);
break;
}
- /* Retrieve type of payload compression. */
- { const char * payload_compressor = NULL;
- struct rpmtd_s pc;
-
- headerGet(h, RPMTAG_PAYLOADCOMPRESSOR, &pc, HEADERGET_DEFAULT);
- payload_compressor = rpmtdGetString(&pc);
- if (!payload_compressor)
- payload_compressor = "gzip";
-
- if (!strcmp(payload_compressor, "gzip"))
- rpmio_flags = "r.gzdio";
- if (!strcmp(payload_compressor, "bzip2"))
- rpmio_flags = "r.bzdio";
- if (!strcmp(payload_compressor, "xz"))
- rpmio_flags = "r.xzdio";
- rpmtdFreeData(&pc);
+ /* Retrieve payload size and compression type. */
+ { const char *compr = headerGetString(h, RPMTAG_PAYLOADCOMPRESSOR);
+ rpmio_flags = rstrscat(NULL, "r.", compr ? compr : "gzip", NULL);
+ payload_size = headerGetNumber(h, RPMTAG_LONGARCHIVESIZE);
}
gzdi = Fdopen(fdi, rpmio_flags); /* XXX gzdi == fdi */
+ free(rpmio_flags);
+
if (gzdi == NULL) {
fprintf(stderr, _("cannot re-open payload: %s\n"), Fstrerror(gzdi));
exit(EXIT_FAILURE);
}
- rc = ufdCopy(gzdi, fdo);
- rc = (rc <= 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+ rc = (ufdCopy(gzdi, fdo) == payload_size) ? EXIT_SUCCESS : EXIT_FAILURE;
+
Fclose(fdo);
Fclose(gzdi); /* XXX gzdi == fdi */