93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/* rpmarchive: spit out the main archive portion of a package */
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#include "system.h"
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const char *__progname;
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#include <rpm/rpmlib.h> /* rpmReadPackageFile .. */
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#include <rpm/rpmtag.h>
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#include <rpm/rpmio.h>
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#include <rpm/rpmpgp.h>
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#include <rpm/rpmts.h>
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#include "debug.h"
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int main(int argc, char *argv[])
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{
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FD_t fdi, fdo;
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Header h;
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char * rpmio_flags = NULL;
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int rc;
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FD_t gzdi;
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setprogname(argv[0]); /* Retrofit glibc __progname */
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rpmReadConfigFiles(NULL, NULL);
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if (argc == 1)
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fdi = fdDup(STDIN_FILENO);
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else {
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if (rstreq(argv[1], "-h") || rstreq(argv[1], "--help")) {
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fprintf(stderr, "Usage: rpm2cpio file.rpm\n");
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exit(EXIT_FAILURE);
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}
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fdi = Fopen(argv[1], "r.ufdio");
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}
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if (Ferror(fdi)) {
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fprintf(stderr, "%s: %s: %s\n", argv[0],
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(argc == 1 ? "<stdin>" : argv[1]), Fstrerror(fdi));
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exit(EXIT_FAILURE);
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}
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fdo = fdDup(STDOUT_FILENO);
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{ rpmts ts = rpmtsCreate();
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rpmVSFlags vsflags = 0;
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/* XXX retain the ageless behavior of rpm2cpio */
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vsflags |= _RPMVSF_NODIGESTS;
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vsflags |= _RPMVSF_NOSIGNATURES;
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vsflags |= RPMVSF_NOHDRCHK;
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(void) rpmtsSetVSFlags(ts, vsflags);
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rc = rpmReadPackageFile(ts, fdi, "rpm2cpio", &h);
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ts = rpmtsFree(ts);
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}
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switch (rc) {
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case RPMRC_OK:
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case RPMRC_NOKEY:
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case RPMRC_NOTTRUSTED:
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break;
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case RPMRC_NOTFOUND:
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fprintf(stderr, _("argument is not an RPM package\n"));
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exit(EXIT_FAILURE);
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break;
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case RPMRC_FAIL:
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default:
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fprintf(stderr, _("error reading header from package\n"));
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exit(EXIT_FAILURE);
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break;
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}
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/* Retrieve type of payload compression. */
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{ const char *compr = headerGetString(h, RPMTAG_PAYLOADCOMPRESSOR);
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rpmio_flags = rstrscat(NULL, "r.", compr ? compr : "gzip", NULL);
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}
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gzdi = Fdopen(fdi, rpmio_flags); /* XXX gzdi == fdi */
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free(rpmio_flags);
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if (gzdi == NULL) {
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fprintf(stderr, _("cannot re-open payload: %s\n"), Fstrerror(gzdi));
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exit(EXIT_FAILURE);
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}
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rc = ufdCopy(gzdi, fdo);
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rc = (rc <= 0) ? EXIT_FAILURE : EXIT_SUCCESS;
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Fclose(fdo);
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Fclose(gzdi); /* XXX gzdi == fdi */
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return rc;
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}
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