rpm: stop using statics; move main() to the end of the source file
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
2aec773688
commit
d4d4f3528e
287
archival/rpm.c
287
archival/rpm.c
@ -79,147 +79,13 @@ typedef struct {
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uint32_t count; /* 4 byte count */
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} rpm_index;
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static void *map;
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static rpm_index **mytags;
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static int tagcount;
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static void extract_cpio(int fd, const char *source_rpm);
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static rpm_index **rpm_gettags(int fd, int *num_tags);
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static int bsearch_rpmtag(const void *key, const void *item);
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static char *rpm_getstr(int tag, int itemindex);
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static int rpm_getint(int tag, int itemindex);
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static int rpm_getcount(int tag);
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static void fileaction_dobackup(char *filename, int fileref);
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static void fileaction_setowngrp(char *filename, int fileref);
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static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
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int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int rpm_main(int argc, char **argv)
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{
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int opt, func = 0;
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const unsigned pagesize = getpagesize();
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while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
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switch (opt) {
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case 'i': /* First arg: Install mode, with q: Information */
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if (!func) func = rpm_install;
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else func |= rpm_query_info;
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break;
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case 'q': /* First arg: Query mode */
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if (func) bb_show_usage();
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func = rpm_query;
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break;
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case 'p': /* Query a package */
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func |= rpm_query_package;
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break;
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case 'l': /* List files in a package */
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func |= rpm_query_list;
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break;
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case 'd': /* List doc files in a package (implies list) */
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func |= rpm_query_list;
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func |= rpm_query_list_doc;
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break;
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case 'c': /* List config files in a package (implies list) */
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func |= rpm_query_list;
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func |= rpm_query_list_config;
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break;
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default:
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bb_show_usage();
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}
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}
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argv += optind;
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//argc -= optind;
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if (!argv[0]) {
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bb_show_usage();
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}
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while (*argv) {
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int rpm_fd;
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unsigned offset;
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const char *source_rpm;
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rpm_fd = xopen(*argv++, O_RDONLY);
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mytags = rpm_gettags(rpm_fd, &tagcount);
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if (!mytags)
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bb_error_msg_and_die("error reading rpm header");
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offset = xlseek(rpm_fd, 0, SEEK_CUR);
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/* Some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
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map = mmap(0, (offset + pagesize) & (-(int)pagesize), PROT_READ, MAP_PRIVATE, rpm_fd, 0);
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source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
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if (func & rpm_install) {
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/* Backup any config files */
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loop_through_files(TAG_BASENAMES, fileaction_dobackup);
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/* Extact the archive */
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extract_cpio(rpm_fd, source_rpm);
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/* Set the correct file uid/gid's */
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loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
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}
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else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
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if (!(func & (rpm_query_info|rpm_query_list))) {
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/* If just a straight query, just give package name */
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printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
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}
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if (func & rpm_query_info) {
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/* Do the nice printout */
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time_t bdate_time;
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struct tm *bdate_ptm;
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char bdatestring[50];
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const char *p;
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printf("%-12s: %s\n", "Name" , rpm_getstr(TAG_NAME, 0));
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/* TODO compat: add "Epoch" here */
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printf("%-12s: %s\n", "Version" , rpm_getstr(TAG_VERSION, 0));
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printf("%-12s: %s\n", "Release" , rpm_getstr(TAG_RELEASE, 0));
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/* add "Architecture" */
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printf("%-12s: %s\n", "Install Date", "(not installed)");
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printf("%-12s: %s\n", "Group" , rpm_getstr(TAG_GROUP, 0));
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printf("%-12s: %d\n", "Size" , rpm_getint(TAG_SIZE, 0));
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printf("%-12s: %s\n", "License" , rpm_getstr(TAG_LICENSE, 0));
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/* add "Signature" */
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printf("%-12s: %s\n", "Source RPM" , source_rpm ? source_rpm : "(none)");
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bdate_time = rpm_getint(TAG_BUILDTIME, 0);
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bdate_ptm = localtime(&bdate_time);
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strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
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printf("%-12s: %s\n", "Build Date" , bdatestring);
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printf("%-12s: %s\n", "Build Host" , rpm_getstr(TAG_BUILDHOST, 0));
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p = rpm_getstr(TAG_PREFIXS, 0);
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printf("%-12s: %s\n", "Relocations" , p ? p : "(not relocatable)");
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/* add "Packager" */
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p = rpm_getstr(TAG_VENDOR, 0);
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printf("%-12s: %s\n", "Vendor" , p ? p : "(none)");
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printf("%-12s: %s\n", "URL" , rpm_getstr(TAG_URL, 0));
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printf("%-12s: %s\n", "Summary" , rpm_getstr(TAG_SUMMARY, 0));
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printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
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}
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if (func & rpm_query_list) {
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int count, it, flags;
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count = rpm_getcount(TAG_BASENAMES);
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for (it = 0; it < count; it++) {
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flags = rpm_getint(TAG_FILEFLAGS, it);
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switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
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case rpm_query_list_doc:
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if (!(flags & RPMFILE_DOC)) continue;
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break;
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case rpm_query_list_config:
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if (!(flags & RPMFILE_CONFIG)) continue;
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break;
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case rpm_query_list_doc|rpm_query_list_config:
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if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
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break;
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}
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printf("%s%s\n",
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rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
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rpm_getstr(TAG_BASENAMES, it));
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}
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}
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}
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free(mytags);
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close(rpm_fd);
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}
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return 0;
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}
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struct globals {
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void *map;
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rpm_index **mytags;
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int tagcount;
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} FIX_ALIASING;
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define INIT_G() do { } while (0)
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static void extract_cpio(int fd, const char *source_rpm)
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{
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@ -305,7 +171,7 @@ static int bsearch_rpmtag(const void *key, const void *item)
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static int rpm_getcount(int tag)
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{
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rpm_index **found;
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found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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if (!found)
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return 0;
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return found[0]->count;
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@ -314,7 +180,7 @@ static int rpm_getcount(int tag)
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static char *rpm_getstr(int tag, int itemindex)
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{
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rpm_index **found;
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found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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if (!found || itemindex >= found[0]->count)
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return NULL;
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if (found[0]->type == RPM_STRING_TYPE
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@ -322,7 +188,7 @@ static char *rpm_getstr(int tag, int itemindex)
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|| found[0]->type == RPM_STRING_ARRAY_TYPE
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) {
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int n;
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char *tmpstr = (char *) map + found[0]->offset;
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char *tmpstr = (char *) G.map + found[0]->offset;
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for (n = 0; n < itemindex; n++)
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tmpstr = tmpstr + strlen(tmpstr) + 1;
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return tmpstr;
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@ -337,11 +203,11 @@ static int rpm_getint(int tag, int itemindex)
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/* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
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* it's ok to ignore it because tag won't be used as a pointer */
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found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
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if (!found || itemindex >= found[0]->count)
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return -1;
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tmpint = (char *) map + found[0]->offset;
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tmpint = (char *) G.map + found[0]->offset;
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if (found[0]->type == RPM_INT32_TYPE) {
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tmpint += itemindex*4;
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return ntohl(*(int32_t*)tmpint);
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@ -396,3 +262,132 @@ static void loop_through_files(int filetag, void (*fileaction)(char *filename, i
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free(filename);
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}
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}
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int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int rpm_main(int argc, char **argv)
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{
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int opt, func = 0;
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const unsigned pagesize = getpagesize();
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while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
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switch (opt) {
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case 'i': /* First arg: Install mode, with q: Information */
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if (!func) func = rpm_install;
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else func |= rpm_query_info;
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break;
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case 'q': /* First arg: Query mode */
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if (func) bb_show_usage();
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func = rpm_query;
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break;
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case 'p': /* Query a package */
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func |= rpm_query_package;
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break;
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case 'l': /* List files in a package */
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func |= rpm_query_list;
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break;
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case 'd': /* List doc files in a package (implies list) */
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func |= rpm_query_list;
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func |= rpm_query_list_doc;
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break;
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case 'c': /* List config files in a package (implies list) */
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func |= rpm_query_list;
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func |= rpm_query_list_config;
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break;
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default:
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bb_show_usage();
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}
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}
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argv += optind;
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//argc -= optind;
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if (!argv[0]) {
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bb_show_usage();
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}
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while (*argv) {
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int rpm_fd;
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unsigned offset;
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const char *source_rpm;
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rpm_fd = xopen(*argv++, O_RDONLY);
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G.mytags = rpm_gettags(rpm_fd, &G.tagcount);
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if (!G.mytags)
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bb_error_msg_and_die("error reading rpm header");
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offset = xlseek(rpm_fd, 0, SEEK_CUR);
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/* Some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
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G.map = mmap(0, (offset + pagesize) & (-(int)pagesize), PROT_READ, MAP_PRIVATE, rpm_fd, 0);
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//FIXME: error check?
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source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
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if (func & rpm_install) {
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/* Backup any config files */
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loop_through_files(TAG_BASENAMES, fileaction_dobackup);
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/* Extact the archive */
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extract_cpio(rpm_fd, source_rpm);
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/* Set the correct file uid/gid's */
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loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
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}
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else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
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if (!(func & (rpm_query_info|rpm_query_list))) {
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/* If just a straight query, just give package name */
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printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
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}
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if (func & rpm_query_info) {
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/* Do the nice printout */
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time_t bdate_time;
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struct tm *bdate_ptm;
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char bdatestring[50];
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const char *p;
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printf("%-12s: %s\n", "Name" , rpm_getstr(TAG_NAME, 0));
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/* TODO compat: add "Epoch" here */
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printf("%-12s: %s\n", "Version" , rpm_getstr(TAG_VERSION, 0));
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printf("%-12s: %s\n", "Release" , rpm_getstr(TAG_RELEASE, 0));
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/* add "Architecture" */
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printf("%-12s: %s\n", "Install Date", "(not installed)");
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printf("%-12s: %s\n", "Group" , rpm_getstr(TAG_GROUP, 0));
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printf("%-12s: %d\n", "Size" , rpm_getint(TAG_SIZE, 0));
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printf("%-12s: %s\n", "License" , rpm_getstr(TAG_LICENSE, 0));
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/* add "Signature" */
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printf("%-12s: %s\n", "Source RPM" , source_rpm ? source_rpm : "(none)");
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bdate_time = rpm_getint(TAG_BUILDTIME, 0);
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bdate_ptm = localtime(&bdate_time);
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strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
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printf("%-12s: %s\n", "Build Date" , bdatestring);
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printf("%-12s: %s\n", "Build Host" , rpm_getstr(TAG_BUILDHOST, 0));
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p = rpm_getstr(TAG_PREFIXS, 0);
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printf("%-12s: %s\n", "Relocations" , p ? p : "(not relocatable)");
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/* add "Packager" */
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p = rpm_getstr(TAG_VENDOR, 0);
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printf("%-12s: %s\n", "Vendor" , p ? p : "(none)");
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printf("%-12s: %s\n", "URL" , rpm_getstr(TAG_URL, 0));
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printf("%-12s: %s\n", "Summary" , rpm_getstr(TAG_SUMMARY, 0));
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printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
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}
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if (func & rpm_query_list) {
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int count, it, flags;
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count = rpm_getcount(TAG_BASENAMES);
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for (it = 0; it < count; it++) {
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flags = rpm_getint(TAG_FILEFLAGS, it);
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switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
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case rpm_query_list_doc:
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if (!(flags & RPMFILE_DOC)) continue;
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break;
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case rpm_query_list_config:
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if (!(flags & RPMFILE_CONFIG)) continue;
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break;
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case rpm_query_list_doc|rpm_query_list_config:
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if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
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break;
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}
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printf("%s%s\n",
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rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
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rpm_getstr(TAG_BASENAMES, it));
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}
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}
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}
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free(G.mytags);
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close(rpm_fd);
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}
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return 0;
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}
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