diff options
| -rw-r--r-- | archival/rpm.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/archival/rpm.c b/archival/rpm.c index bb6cc45..461e170 100644 --- a/archival/rpm.c +++ b/archival/rpm.c @@ -117,14 +117,15 @@ static void extract_cpio(int fd, const char *source_rpm) continue; } -static rpm_index *rpm_gettags(int fd) +static int rpm_gettags(const char *filename) { rpm_index *tags; + int fd; unsigned pass, idx; unsigned storepos; + fd = xopen(filename, O_RDONLY); storepos = xlseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */ - G.tagcount = 0; tags = NULL; idx = 0; @@ -135,13 +136,13 @@ static rpm_index *rpm_gettags(int fd) xread(fd, &header, sizeof(header)); if (header.magic_and_ver != htonl(RPM_HEADER_MAGICnVER)) - return NULL; /* Invalid magic, or not version 1 */ + bb_error_msg_and_die("invalid RPM header magic in '%s'", filename); header.size = ntohl(header.size); cnt = ntohl(header.entries); storepos += sizeof(header) + cnt * 16; G.tagcount += cnt; - tags = xrealloc(tags, G.tagcount * sizeof(tags[0])); + tags = xrealloc(tags, sizeof(tags[0]) * G.tagcount); xread(fd, &tags[idx], sizeof(tags[0]) * cnt); while (cnt--) { rpm_index *tag = &tags[idx]; @@ -160,6 +161,7 @@ static rpm_index *rpm_gettags(int fd) /* Seek past store */ storepos = xlseek(fd, header.size, SEEK_CUR); } + G.mytags = tags; /* Map the store */ storepos = (storepos + G.pagesize) & -(int)G.pagesize; @@ -168,9 +170,9 @@ static rpm_index *rpm_gettags(int fd) /* some NOMMU systems prefer MAP_PRIVATE over MAP_SHARED */ G.map = mmap(0, storepos, PROT_READ, MAP_PRIVATE, fd, 0); if (G.map == MAP_FAILED) - return NULL; /* error */ + bb_perror_msg_and_die("mmap '%s'", filename); - return tags; + return fd; } static int bsearch_rpmtag(const void *key, const void *item) @@ -383,11 +385,7 @@ int rpm_main(int argc, char **argv) int rpm_fd; const char *source_rpm; - rpm_fd = xopen(*argv, O_RDONLY); - G.mytags = rpm_gettags(rpm_fd); - if (!G.mytags) - bb_error_msg_and_die("error reading rpm header from '%s'", *argv); - + rpm_fd = rpm_gettags(*argv); print_all_tags(); source_rpm = rpm_getstr0(TAG_SOURCERPM); |