1 files changed, 78 insertions, 0 deletions
diff --git a/rpm2header.c b/rpm2header.c
new file mode 100644
index 0000000..32ace46
--- /dev/null
+++ b/rpm2header.c
@@ -0,0 +1,78 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <rpmlib.h>
+
+#define FILENAME_TAG 1000000
+#define FILESIZE_TAG 1000001
+
+const char *basename(const char *f) {
+  char *p = strrchr(f, '/');
+  return p ? p + 1 : f;
+}
+
+int_32 FD_size(FD_t fd) {
+  struct stat sb;
+  fstat(fdFileno(fd), &sb);
+  return sb.st_size;
+}
+
+int main(int argc, char **argv) {
+  int i;
+
+  if (argc < 2) {
+    fprintf(stderr, "usage: rpm2header <rpms>\n");
+    exit(1);
+  }
+
+  for (i = 1; i < argc; i++) {
+    FD_t fd;
+    Header h;
+    int isSource;
+    int_32 size;
+    const char *name = basename(argv[i]);
+
+    if (!(fd = fdOpen(argv[i], O_RDONLY, 0666))) {
+      perror("open");
+      exit(1);
+    }
+    size = FD_size(fd);
+
+    if (rpmReadPackageHeader(fd, &h, &isSource, NULL, NULL) == 0) {
+      headerRemoveEntry(h, RPMTAG_POSTIN);
+      headerRemoveEntry(h, RPMTAG_POSTUN);
+      headerRemoveEntry(h, RPMTAG_PREIN);
+      headerRemoveEntry(h, RPMTAG_PREUN);
+      headerRemoveEntry(h, RPMTAG_FILEUSERNAME);
+      headerRemoveEntry(h, RPMTAG_FILEGROUPNAME);
+      headerRemoveEntry(h, RPMTAG_FILEVERIFYFLAGS);
+      headerRemoveEntry(h, RPMTAG_FILERDEVS);
+      headerRemoveEntry(h, RPMTAG_FILEMTIMES);
+      headerRemoveEntry(h, RPMTAG_FILEDEVICES);
+      headerRemoveEntry(h, RPMTAG_FILEINODES);
+      headerRemoveEntry(h, RPMTAG_TRIGGERSCRIPTS);
+      headerRemoveEntry(h, RPMTAG_TRIGGERVERSION);
+      headerRemoveEntry(h, RPMTAG_TRIGGERFLAGS);
+      headerRemoveEntry(h, RPMTAG_TRIGGERNAME);
+      headerRemoveEntry(h, RPMTAG_CHANGELOGTIME);
+      headerRemoveEntry(h, RPMTAG_CHANGELOGNAME);
+      headerRemoveEntry(h, RPMTAG_CHANGELOGTEXT);
+      headerRemoveEntry(h, RPMTAG_ICON);
+      headerRemoveEntry(h, RPMTAG_GIF);
+      headerRemoveEntry(h, RPMTAG_VENDOR);
+      headerRemoveEntry(h, RPMTAG_EXCLUDE);
+      headerRemoveEntry(h, RPMTAG_EXCLUSIVE);
+      headerRemoveEntry(h, RPMTAG_DISTRIBUTION);
+      headerRemoveEntry(h, RPMTAG_VERIFYSCRIPT);
+      headerAddEntry(h, FILENAME_TAG, RPM_STRING_TYPE, name, 1);
+      headerAddEntry(h, FILESIZE_TAG, RPM_INT32_TYPE, &size, 1);
+      headerWrite(fdDup(1 /*stdout*/), h, HEADER_MAGIC_YES);
+      headerFree(h);
+    }
+  }
+  return 0;
+}