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authorDenys Vlasenko <vda.linux@googlemail.com>2013-02-20 15:01:10 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2013-02-20 15:01:10 (GMT)
commitd4d4f3528e0f7cb489ac05e57cc0d13b4c52e436 (patch)
tree06f3ff05751470deeafc9b1d89a24f3f5602f790
parent2aec773688fd64857e9446838187170760acddd4 (diff)
downloadbusybox-d4d4f3528e0f7cb489ac05e57cc0d13b4c52e436.tar.gz
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rpm: stop using statics; move main() to the end of the source file
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--archival/rpm.c287
1 files changed, 141 insertions, 146 deletions
diff --git a/archival/rpm.c b/archival/rpm.c
index 6b227d5..b506f17 100644
--- a/archival/rpm.c
+++ b/archival/rpm.c
@@ -79,147 +79,13 @@ typedef struct {
uint32_t count; /* 4 byte count */
} rpm_index;
-static void *map;
-static rpm_index **mytags;
-static int tagcount;
-
-static void extract_cpio(int fd, const char *source_rpm);
-static rpm_index **rpm_gettags(int fd, int *num_tags);
-static int bsearch_rpmtag(const void *key, const void *item);
-static char *rpm_getstr(int tag, int itemindex);
-static int rpm_getint(int tag, int itemindex);
-static int rpm_getcount(int tag);
-static void fileaction_dobackup(char *filename, int fileref);
-static void fileaction_setowngrp(char *filename, int fileref);
-static void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref));
-
-int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int rpm_main(int argc, char **argv)
-{
- int opt, func = 0;
- const unsigned pagesize = getpagesize();
-
- while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
- switch (opt) {
- case 'i': /* First arg: Install mode, with q: Information */
- if (!func) func = rpm_install;
- else func |= rpm_query_info;
- break;
- case 'q': /* First arg: Query mode */
- if (func) bb_show_usage();
- func = rpm_query;
- break;
- case 'p': /* Query a package */
- func |= rpm_query_package;
- break;
- case 'l': /* List files in a package */
- func |= rpm_query_list;
- break;
- case 'd': /* List doc files in a package (implies list) */
- func |= rpm_query_list;
- func |= rpm_query_list_doc;
- break;
- case 'c': /* List config files in a package (implies list) */
- func |= rpm_query_list;
- func |= rpm_query_list_config;
- break;
- default:
- bb_show_usage();
- }
- }
- argv += optind;
- //argc -= optind;
- if (!argv[0]) {
- bb_show_usage();
- }
-
- while (*argv) {
- int rpm_fd;
- unsigned offset;
- const char *source_rpm;
-
- rpm_fd = xopen(*argv++, O_RDONLY);
- mytags = rpm_gettags(rpm_fd, &tagcount);
- if (!mytags)
- bb_error_msg_and_die("error reading rpm header");
- offset = xlseek(rpm_fd, 0, SEEK_CUR);
- /* Some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
- map = mmap(0, (offset + pagesize) & (-(int)pagesize), PROT_READ, MAP_PRIVATE, rpm_fd, 0);
-
- source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
-
- if (func & rpm_install) {
- /* Backup any config files */
- loop_through_files(TAG_BASENAMES, fileaction_dobackup);
- /* Extact the archive */
- extract_cpio(rpm_fd, source_rpm);
- /* Set the correct file uid/gid's */
- loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
- }
- else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
- if (!(func & (rpm_query_info|rpm_query_list))) {
- /* If just a straight query, just give package name */
- printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
- }
- if (func & rpm_query_info) {
- /* Do the nice printout */
- time_t bdate_time;
- struct tm *bdate_ptm;
- char bdatestring[50];
- const char *p;
-
- printf("%-12s: %s\n", "Name" , rpm_getstr(TAG_NAME, 0));
- /* TODO compat: add "Epoch" here */
- printf("%-12s: %s\n", "Version" , rpm_getstr(TAG_VERSION, 0));
- printf("%-12s: %s\n", "Release" , rpm_getstr(TAG_RELEASE, 0));
- /* add "Architecture" */
- printf("%-12s: %s\n", "Install Date", "(not installed)");
- printf("%-12s: %s\n", "Group" , rpm_getstr(TAG_GROUP, 0));
- printf("%-12s: %d\n", "Size" , rpm_getint(TAG_SIZE, 0));
- printf("%-12s: %s\n", "License" , rpm_getstr(TAG_LICENSE, 0));
- /* add "Signature" */
- printf("%-12s: %s\n", "Source RPM" , source_rpm ? source_rpm : "(none)");
- bdate_time = rpm_getint(TAG_BUILDTIME, 0);
- bdate_ptm = localtime(&bdate_time);
- strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
- printf("%-12s: %s\n", "Build Date" , bdatestring);
- printf("%-12s: %s\n", "Build Host" , rpm_getstr(TAG_BUILDHOST, 0));
- p = rpm_getstr(TAG_PREFIXS, 0);
- printf("%-12s: %s\n", "Relocations" , p ? p : "(not relocatable)");
- /* add "Packager" */
- p = rpm_getstr(TAG_VENDOR, 0);
- printf("%-12s: %s\n", "Vendor" , p ? p : "(none)");
- printf("%-12s: %s\n", "URL" , rpm_getstr(TAG_URL, 0));
- printf("%-12s: %s\n", "Summary" , rpm_getstr(TAG_SUMMARY, 0));
- printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
- }
- if (func & rpm_query_list) {
- int count, it, flags;
- count = rpm_getcount(TAG_BASENAMES);
- for (it = 0; it < count; it++) {
- flags = rpm_getint(TAG_FILEFLAGS, it);
- switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
- case rpm_query_list_doc:
- if (!(flags & RPMFILE_DOC)) continue;
- break;
- case rpm_query_list_config:
- if (!(flags & RPMFILE_CONFIG)) continue;
- break;
- case rpm_query_list_doc|rpm_query_list_config:
- if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
- break;
- }
- printf("%s%s\n",
- rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
- rpm_getstr(TAG_BASENAMES, it));
- }
- }
- }
- free(mytags);
- close(rpm_fd);
- }
- return 0;
-}
+struct globals {
+ void *map;
+ rpm_index **mytags;
+ int tagcount;
+} FIX_ALIASING;
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { } while (0)
static void extract_cpio(int fd, const char *source_rpm)
{
@@ -305,7 +171,7 @@ static int bsearch_rpmtag(const void *key, const void *item)
static int rpm_getcount(int tag)
{
rpm_index **found;
- found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
+ found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found)
return 0;
return found[0]->count;
@@ -314,7 +180,7 @@ static int rpm_getcount(int tag)
static char *rpm_getstr(int tag, int itemindex)
{
rpm_index **found;
- found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
+ found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found || itemindex >= found[0]->count)
return NULL;
if (found[0]->type == RPM_STRING_TYPE
@@ -322,7 +188,7 @@ static char *rpm_getstr(int tag, int itemindex)
|| found[0]->type == RPM_STRING_ARRAY_TYPE
) {
int n;
- char *tmpstr = (char *) map + found[0]->offset;
+ char *tmpstr = (char *) G.map + found[0]->offset;
for (n = 0; n < itemindex; n++)
tmpstr = tmpstr + strlen(tmpstr) + 1;
return tmpstr;
@@ -337,11 +203,11 @@ static int rpm_getint(int tag, int itemindex)
/* gcc throws warnings here when sizeof(void*)!=sizeof(int) ...
* it's ok to ignore it because tag won't be used as a pointer */
- found = bsearch(&tag, mytags, tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
+ found = bsearch(&tag, G.mytags, G.tagcount, sizeof(struct rpmtag *), bsearch_rpmtag);
if (!found || itemindex >= found[0]->count)
return -1;
- tmpint = (char *) map + found[0]->offset;
+ tmpint = (char *) G.map + found[0]->offset;
if (found[0]->type == RPM_INT32_TYPE) {
tmpint += itemindex*4;
return ntohl(*(int32_t*)tmpint);
@@ -396,3 +262,132 @@ static void loop_through_files(int filetag, void (*fileaction)(char *filename, i
free(filename);
}
}
+
+int rpm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int rpm_main(int argc, char **argv)
+{
+ int opt, func = 0;
+ const unsigned pagesize = getpagesize();
+
+ while ((opt = getopt(argc, argv, "iqpldc")) != -1) {
+ switch (opt) {
+ case 'i': /* First arg: Install mode, with q: Information */
+ if (!func) func = rpm_install;
+ else func |= rpm_query_info;
+ break;
+ case 'q': /* First arg: Query mode */
+ if (func) bb_show_usage();
+ func = rpm_query;
+ break;
+ case 'p': /* Query a package */
+ func |= rpm_query_package;
+ break;
+ case 'l': /* List files in a package */
+ func |= rpm_query_list;
+ break;
+ case 'd': /* List doc files in a package (implies list) */
+ func |= rpm_query_list;
+ func |= rpm_query_list_doc;
+ break;
+ case 'c': /* List config files in a package (implies list) */
+ func |= rpm_query_list;
+ func |= rpm_query_list_config;
+ break;
+ default:
+ bb_show_usage();
+ }
+ }
+ argv += optind;
+ //argc -= optind;
+ if (!argv[0]) {
+ bb_show_usage();
+ }
+
+ while (*argv) {
+ int rpm_fd;
+ unsigned offset;
+ const char *source_rpm;
+
+ rpm_fd = xopen(*argv++, O_RDONLY);
+ G.mytags = rpm_gettags(rpm_fd, &G.tagcount);
+ if (!G.mytags)
+ bb_error_msg_and_die("error reading rpm header");
+ offset = xlseek(rpm_fd, 0, SEEK_CUR);
+ /* Some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */
+ G.map = mmap(0, (offset + pagesize) & (-(int)pagesize), PROT_READ, MAP_PRIVATE, rpm_fd, 0);
+//FIXME: error check?
+
+ source_rpm = rpm_getstr(TAG_SOURCERPM, 0);
+
+ if (func & rpm_install) {
+ /* Backup any config files */
+ loop_through_files(TAG_BASENAMES, fileaction_dobackup);
+ /* Extact the archive */
+ extract_cpio(rpm_fd, source_rpm);
+ /* Set the correct file uid/gid's */
+ loop_through_files(TAG_BASENAMES, fileaction_setowngrp);
+ }
+ else if ((func & (rpm_query|rpm_query_package)) == (rpm_query|rpm_query_package)) {
+ if (!(func & (rpm_query_info|rpm_query_list))) {
+ /* If just a straight query, just give package name */
+ printf("%s-%s-%s\n", rpm_getstr(TAG_NAME, 0), rpm_getstr(TAG_VERSION, 0), rpm_getstr(TAG_RELEASE, 0));
+ }
+ if (func & rpm_query_info) {
+ /* Do the nice printout */
+ time_t bdate_time;
+ struct tm *bdate_ptm;
+ char bdatestring[50];
+ const char *p;
+
+ printf("%-12s: %s\n", "Name" , rpm_getstr(TAG_NAME, 0));
+ /* TODO compat: add "Epoch" here */
+ printf("%-12s: %s\n", "Version" , rpm_getstr(TAG_VERSION, 0));
+ printf("%-12s: %s\n", "Release" , rpm_getstr(TAG_RELEASE, 0));
+ /* add "Architecture" */
+ printf("%-12s: %s\n", "Install Date", "(not installed)");
+ printf("%-12s: %s\n", "Group" , rpm_getstr(TAG_GROUP, 0));
+ printf("%-12s: %d\n", "Size" , rpm_getint(TAG_SIZE, 0));
+ printf("%-12s: %s\n", "License" , rpm_getstr(TAG_LICENSE, 0));
+ /* add "Signature" */
+ printf("%-12s: %s\n", "Source RPM" , source_rpm ? source_rpm : "(none)");
+ bdate_time = rpm_getint(TAG_BUILDTIME, 0);
+ bdate_ptm = localtime(&bdate_time);
+ strftime(bdatestring, 50, "%a %d %b %Y %T %Z", bdate_ptm);
+ printf("%-12s: %s\n", "Build Date" , bdatestring);
+ printf("%-12s: %s\n", "Build Host" , rpm_getstr(TAG_BUILDHOST, 0));
+ p = rpm_getstr(TAG_PREFIXS, 0);
+ printf("%-12s: %s\n", "Relocations" , p ? p : "(not relocatable)");
+ /* add "Packager" */
+ p = rpm_getstr(TAG_VENDOR, 0);
+ printf("%-12s: %s\n", "Vendor" , p ? p : "(none)");
+ printf("%-12s: %s\n", "URL" , rpm_getstr(TAG_URL, 0));
+ printf("%-12s: %s\n", "Summary" , rpm_getstr(TAG_SUMMARY, 0));
+ printf("Description :\n%s\n", rpm_getstr(TAG_DESCRIPTION, 0));
+ }
+ if (func & rpm_query_list) {
+ int count, it, flags;
+ count = rpm_getcount(TAG_BASENAMES);
+ for (it = 0; it < count; it++) {
+ flags = rpm_getint(TAG_FILEFLAGS, it);
+ switch (func & (rpm_query_list_doc|rpm_query_list_config)) {
+ case rpm_query_list_doc:
+ if (!(flags & RPMFILE_DOC)) continue;
+ break;
+ case rpm_query_list_config:
+ if (!(flags & RPMFILE_CONFIG)) continue;
+ break;
+ case rpm_query_list_doc|rpm_query_list_config:
+ if (!(flags & (RPMFILE_CONFIG|RPMFILE_DOC))) continue;
+ break;
+ }
+ printf("%s%s\n",
+ rpm_getstr(TAG_DIRNAMES, rpm_getint(TAG_DIRINDEXES, it)),
+ rpm_getstr(TAG_BASENAMES, it));
+ }
+ }
+ }
+ free(G.mytags);
+ close(rpm_fd);
+ }
+ return 0;
+}