720 lines
20 KiB
Diff
720 lines
20 KiB
Diff
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--- a/libbb/unarchive.c
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+++ b/libbb/unarchive.c
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@@ -28,6 +28,7 @@
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#include <libgen.h>
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#include "libbb.h"
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+#include "gzip.h"
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#define CONFIG_FEATURE_TAR_OLDGNU_COMPATABILITY 1
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#define CONFIG_FEATURE_TAR_GNU_EXTENSIONS
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@@ -39,38 +40,15 @@ static char *linkname = NULL;
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off_t archive_offset;
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-#define SEEK_BUF 4096
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static ssize_t
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-seek_by_read(FILE* fd, size_t len)
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-{
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- ssize_t cc, total = 0;
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- char buf[SEEK_BUF];
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-
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- while (len) {
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- cc = fread(buf, sizeof(buf[0]),
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- len > SEEK_BUF ? SEEK_BUF : len,
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- fd);
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-
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- total += cc;
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- len -= cc;
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-
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- if(feof(fd) || ferror(fd))
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- break;
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- }
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- return total;
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-}
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-
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-static void
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-seek_sub_file(FILE *fd, const int count)
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+seek_forward(struct gzip_handle *zh, ssize_t len)
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{
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- archive_offset += count;
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+ ssize_t slen = gzip_seek(zh, len);
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- /* Do not use fseek() on a pipe. It may fail with ESPIPE, leaving the
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- * stream at an undefined location.
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- */
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- seek_by_read(fd, count);
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+ if (slen == len)
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+ archive_offset += len;
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- return;
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+ return slen;
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}
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@@ -87,7 +65,7 @@ seek_sub_file(FILE *fd, const int count)
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* trailing '/' or else the last dir will be assumed to be the file prefix
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*/
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static char *
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-extract_archive(FILE *src_stream, FILE *out_stream,
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+extract_archive(struct gzip_handle *src_stream, FILE *out_stream,
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const file_header_t *file_entry, const int function,
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const char *prefix,
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int *err)
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@@ -129,14 +107,14 @@ extract_archive(FILE *src_stream, FILE *
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if (function & extract_to_stream) {
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if (S_ISREG(file_entry->mode)) {
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- *err = copy_file_chunk(src_stream, out_stream, file_entry->size);
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+ *err = gzip_copy(src_stream, out_stream, file_entry->size);
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archive_offset += file_entry->size;
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}
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}
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else if (function & extract_one_to_buffer) {
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if (S_ISREG(file_entry->mode)) {
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buffer = (char *) xmalloc(file_entry->size + 1);
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- fread(buffer, 1, file_entry->size, src_stream);
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+ gzip_read(src_stream, buffer, file_entry->size);
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buffer[file_entry->size] = '\0';
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archive_offset += file_entry->size;
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goto cleanup;
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@@ -156,7 +134,7 @@ extract_archive(FILE *src_stream, FILE *
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*err = -1;
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error_msg("%s not created: newer or same age file exists", file_entry->name);
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}
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- seek_sub_file(src_stream, file_entry->size);
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+ seek_forward(src_stream, file_entry->size);
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goto cleanup;
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}
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}
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@@ -185,11 +163,11 @@ extract_archive(FILE *src_stream, FILE *
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} else {
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if ((dst_stream = wfopen(full_name, "w")) == NULL) {
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*err = -1;
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- seek_sub_file(src_stream, file_entry->size);
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+ seek_forward(src_stream, file_entry->size);
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goto cleanup;
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}
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archive_offset += file_entry->size;
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- *err = copy_file_chunk(src_stream, dst_stream, file_entry->size);
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+ *err = gzip_copy(src_stream, dst_stream, file_entry->size);
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fclose(dst_stream);
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}
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break;
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@@ -250,7 +228,7 @@ extract_archive(FILE *src_stream, FILE *
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/* If we arent extracting data we have to skip it,
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* if data size is 0 then then just do it anyway
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* (saves testing for it) */
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- seek_sub_file(src_stream, file_entry->size);
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+ seek_forward(src_stream, file_entry->size);
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}
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/* extract_list and extract_verbose_list can be used in conjunction
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@@ -274,8 +252,8 @@ cleanup:
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}
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static char *
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-unarchive(FILE *src_stream, FILE *out_stream,
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- file_header_t *(*get_headers)(FILE *),
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+unarchive(struct gzip_handle *src_stream, FILE *out_stream,
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+ file_header_t *(*get_headers)(struct gzip_handle *),
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void (*free_headers)(file_header_t *),
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const int extract_function,
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const char *prefix,
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@@ -329,7 +307,7 @@ unarchive(FILE *src_stream, FILE *out_st
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}
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} else {
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/* seek past the data entry */
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- seek_sub_file(src_stream, file_entry->size);
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+ seek_forward(src_stream, file_entry->size);
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}
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free_headers(file_entry);
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}
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@@ -337,108 +315,9 @@ unarchive(FILE *src_stream, FILE *out_st
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return buffer;
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}
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-static file_header_t *
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-get_header_ar(FILE *src_stream)
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-{
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- file_header_t *typed;
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- union {
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- char raw[60];
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- struct {
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- char name[16];
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- char date[12];
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- char uid[6];
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- char gid[6];
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- char mode[8];
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- char size[10];
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- char magic[2];
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- } formated;
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- } ar;
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- static char *ar_long_names;
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-
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- if (fread(ar.raw, 1, 60, src_stream) != 60) {
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- return(NULL);
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- }
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- archive_offset += 60;
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- /* align the headers based on the header magic */
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- if ((ar.formated.magic[0] != '`') || (ar.formated.magic[1] != '\n')) {
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- /* some version of ar, have an extra '\n' after each data entry,
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- * this puts the next header out by 1 */
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- if (ar.formated.magic[1] != '`') {
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- error_msg("Invalid magic");
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- return(NULL);
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- }
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- /* read the next char out of what would be the data section,
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- * if its a '\n' then it is a valid header offset by 1*/
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- archive_offset++;
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- if (fgetc(src_stream) != '\n') {
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- error_msg("Invalid magic");
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- return(NULL);
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- }
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- /* fix up the header, we started reading 1 byte too early */
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- /* raw_header[60] wont be '\n' as it should, but it doesnt matter */
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- memmove(ar.raw, &ar.raw[1], 59);
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- }
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-
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- typed = (file_header_t *) xcalloc(1, sizeof(file_header_t));
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-
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- typed->size = (size_t) atoi(ar.formated.size);
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- /* long filenames have '/' as the first character */
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- if (ar.formated.name[0] == '/') {
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- if (ar.formated.name[1] == '/') {
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- /* If the second char is a '/' then this entries data section
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- * stores long filename for multiple entries, they are stored
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- * in static variable long_names for use in future entries */
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- ar_long_names = (char *) xrealloc(ar_long_names, typed->size);
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- fread(ar_long_names, 1, typed->size, src_stream);
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- archive_offset += typed->size;
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- /* This ar entries data section only contained filenames for other records
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- * they are stored in the static ar_long_names for future reference */
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- return (get_header_ar(src_stream)); /* Return next header */
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- } else if (ar.formated.name[1] == ' ') {
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- /* This is the index of symbols in the file for compilers */
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- seek_sub_file(src_stream, typed->size);
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- return (get_header_ar(src_stream)); /* Return next header */
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- } else {
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- /* The number after the '/' indicates the offset in the ar data section
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- (saved in variable long_name) that conatains the real filename */
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- if (!ar_long_names) {
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- error_msg("Cannot resolve long file name");
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- return (NULL);
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- }
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- typed->name = xstrdup(ar_long_names + atoi(&ar.formated.name[1]));
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- }
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- } else {
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- /* short filenames */
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- typed->name = xcalloc(1, 16);
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- strncpy(typed->name, ar.formated.name, 16);
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- }
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- typed->name[strcspn(typed->name, " /")]='\0';
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-
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- /* convert the rest of the now valid char header to its typed struct */
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- parse_mode(ar.formated.mode, &typed->mode);
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- typed->mtime = atoi(ar.formated.date);
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- typed->uid = atoi(ar.formated.uid);
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- typed->gid = atoi(ar.formated.gid);
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-
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- return(typed);
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-}
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-
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-static void
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-free_header_ar(file_header_t *ar_entry)
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-{
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- if (ar_entry == NULL)
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- return;
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-
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- free(ar_entry->name);
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- if (ar_entry->link_name)
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- free(ar_entry->link_name);
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-
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- free(ar_entry);
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-}
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-
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static file_header_t *
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-get_header_tar(FILE *tar_stream)
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+get_header_tar(struct gzip_handle *tar_stream)
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{
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union {
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unsigned char raw[512];
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@@ -467,10 +346,10 @@ get_header_tar(FILE *tar_stream)
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long sum = 0;
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if (archive_offset % 512 != 0) {
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- seek_sub_file(tar_stream, 512 - (archive_offset % 512));
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+ seek_forward(tar_stream, 512 - (archive_offset % 512));
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}
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- if (fread(tar.raw, 1, 512, tar_stream) != 512) {
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+ if (gzip_read(tar_stream, tar.raw, 512) != 512) {
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/* Unfortunately its common for tar files to have all sorts of
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* trailing garbage, fail silently */
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// error_msg("Couldnt read header");
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@@ -557,7 +436,7 @@ get_header_tar(FILE *tar_stream)
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# ifdef CONFIG_FEATURE_TAR_GNU_EXTENSIONS
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case 'L': {
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longname = xmalloc(tar_entry->size + 1);
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- if(fread(longname, tar_entry->size, 1, tar_stream) != 1)
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+ if(gzip_read(tar_stream, longname, tar_entry->size) != tar_entry->size)
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return NULL;
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longname[tar_entry->size] = '\0';
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archive_offset += tar_entry->size;
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@@ -566,7 +445,7 @@ get_header_tar(FILE *tar_stream)
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}
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case 'K': {
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linkname = xmalloc(tar_entry->size + 1);
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- if(fread(linkname, tar_entry->size, 1, tar_stream) != 1)
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+ if(gzip_read(tar_stream, linkname, tar_entry->size) != tar_entry->size)
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return NULL;
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linkname[tar_entry->size] = '\0';
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archive_offset += tar_entry->size;
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@@ -642,6 +521,9 @@ deb_extract(const char *package_filename
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char *ared_file = NULL;
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char ar_magic[8];
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int gz_err;
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+ struct gzip_handle tar_outer, tar_inner;
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+ file_header_t *tar_header;
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+ ssize_t len;
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*err = 0;
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@@ -672,111 +554,44 @@ deb_extract(const char *package_filename
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/* set the buffer size */
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setvbuf(deb_stream, NULL, _IOFBF, 0x8000);
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- /* check ar magic */
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- fread(ar_magic, 1, 8, deb_stream);
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-
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- if (strncmp(ar_magic,"!<arch>",7) == 0) {
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- archive_offset = 8;
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+ memset(&tar_outer, 0, sizeof(tar_outer));
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+ tar_outer.file = deb_stream;
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+ gzip_exec(&tar_outer, NULL);
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- while ((ar_header = get_header_ar(deb_stream)) != NULL) {
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- if (strcmp(ared_file, ar_header->name) == 0) {
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- int gunzip_pid = 0;
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- FILE *uncompressed_stream;
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- /* open a stream of decompressed data */
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- uncompressed_stream = gz_open(deb_stream, &gunzip_pid);
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- if (uncompressed_stream == NULL) {
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- *err = -1;
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- goto cleanup;
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- }
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+ /* walk through outer tar file to find ared_file */
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+ while ((tar_header = get_header_tar(&tar_outer)) != NULL) {
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+ int name_offset = 0;
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+ if (strncmp(tar_header->name, "./", 2) == 0)
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+ name_offset = 2;
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- archive_offset = 0;
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- output_buffer = unarchive(uncompressed_stream,
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- out_stream, get_header_tar,
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- free_header_tar,
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- extract_function, prefix,
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- file_list, err);
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- fclose(uncompressed_stream);
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- gz_err = gz_close(gunzip_pid);
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- if (gz_err)
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- *err = -1;
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- free_header_ar(ar_header);
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- break;
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- }
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- if (fseek(deb_stream, ar_header->size, SEEK_CUR) == -1) {
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- opkg_perror(ERROR, "Couldn't fseek into %s", package_filename);
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- *err = -1;
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- free_header_ar(ar_header);
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- goto cleanup;
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- }
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- free_header_ar(ar_header);
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- }
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- goto cleanup;
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- } else if (strncmp(ar_magic, "\037\213", 2) == 0) {
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- /* it's a gz file, let's assume it's an opkg */
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- int unzipped_opkg_pid;
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- FILE *unzipped_opkg_stream;
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- file_header_t *tar_header;
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- archive_offset = 0;
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- if (fseek(deb_stream, 0, SEEK_SET) == -1) {
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|
- opkg_perror(ERROR, "Couldn't fseek into %s", package_filename);
|
||
|
|
- *err = -1;
|
||
|
|
- goto cleanup;
|
||
|
|
- }
|
||
|
|
- unzipped_opkg_stream = gz_open(deb_stream, &unzipped_opkg_pid);
|
||
|
|
- if (unzipped_opkg_stream == NULL) {
|
||
|
|
- *err = -1;
|
||
|
|
- goto cleanup;
|
||
|
|
- }
|
||
|
|
+ if (strcmp(ared_file, tar_header->name+name_offset) == 0) {
|
||
|
|
+ memset(&tar_inner, 0, sizeof(tar_inner));
|
||
|
|
+ tar_inner.gzip = &tar_outer;
|
||
|
|
+ gzip_exec(&tar_inner, NULL);
|
||
|
|
|
||
|
|
- /* walk through outer tar file to find ared_file */
|
||
|
|
- while ((tar_header = get_header_tar(unzipped_opkg_stream)) != NULL) {
|
||
|
|
- int name_offset = 0;
|
||
|
|
- if (strncmp(tar_header->name, "./", 2) == 0)
|
||
|
|
- name_offset = 2;
|
||
|
|
- if (strcmp(ared_file, tar_header->name+name_offset) == 0) {
|
||
|
|
- int gunzip_pid = 0;
|
||
|
|
- FILE *uncompressed_stream;
|
||
|
|
- /* open a stream of decompressed data */
|
||
|
|
- uncompressed_stream = gz_open(unzipped_opkg_stream, &gunzip_pid);
|
||
|
|
- if (uncompressed_stream == NULL) {
|
||
|
|
- *err = -1;
|
||
|
|
- goto cleanup;
|
||
|
|
- }
|
||
|
|
- archive_offset = 0;
|
||
|
|
+ archive_offset = 0;
|
||
|
|
|
||
|
|
- output_buffer = unarchive(uncompressed_stream,
|
||
|
|
- out_stream,
|
||
|
|
- get_header_tar,
|
||
|
|
- free_header_tar,
|
||
|
|
- extract_function,
|
||
|
|
- prefix,
|
||
|
|
- file_list,
|
||
|
|
- err);
|
||
|
|
+ output_buffer = unarchive(&tar_inner,
|
||
|
|
+ out_stream,
|
||
|
|
+ get_header_tar,
|
||
|
|
+ free_header_tar,
|
||
|
|
+ extract_function,
|
||
|
|
+ prefix,
|
||
|
|
+ file_list,
|
||
|
|
+ err);
|
||
|
|
|
||
|
|
- free_header_tar(tar_header);
|
||
|
|
- fclose(uncompressed_stream);
|
||
|
|
- gz_err = gz_close(gunzip_pid);
|
||
|
|
- if (gz_err)
|
||
|
|
- *err = -1;
|
||
|
|
- break;
|
||
|
|
- }
|
||
|
|
- seek_sub_file(unzipped_opkg_stream, tar_header->size);
|
||
|
|
free_header_tar(tar_header);
|
||
|
|
+ gzip_close(&tar_inner);
|
||
|
|
+ break;
|
||
|
|
}
|
||
|
|
- fclose(unzipped_opkg_stream);
|
||
|
|
- gz_err = gz_close(unzipped_opkg_pid);
|
||
|
|
- if (gz_err)
|
||
|
|
- *err = -1;
|
||
|
|
|
||
|
|
- goto cleanup;
|
||
|
|
- } else {
|
||
|
|
- *err = -1;
|
||
|
|
- error_msg("%s: invalid magic", package_filename);
|
||
|
|
+ seek_forward(&tar_outer, tar_header->size);
|
||
|
|
+ free_header_tar(tar_header);
|
||
|
|
}
|
||
|
|
|
||
|
|
cleanup:
|
||
|
|
- if (deb_stream)
|
||
|
|
- fclose(deb_stream);
|
||
|
|
+ gzip_close(&tar_outer);
|
||
|
|
+
|
||
|
|
if (file_list)
|
||
|
|
free(file_list);
|
||
|
|
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/libbb/gzip.h
|
||
|
|
@@ -0,0 +1,41 @@
|
||
|
|
+/*
|
||
|
|
+ * Copyright (C) 2016 Jo-Philipp Wich <jo@mein.io>
|
||
|
|
+ *
|
||
|
|
+ * Zlib decrompression utility routines.
|
||
|
|
+ *
|
||
|
|
+ * This program is free software; you can redistribute it and/or modify
|
||
|
|
+ * it under the terms of the GNU General Public License as published by
|
||
|
|
+ * the Free Software Foundation; either version 2 of the License, or
|
||
|
|
+ * (at your option) any later version.
|
||
|
|
+ *
|
||
|
|
+ * This program is distributed in the hope that it will be useful,
|
||
|
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
+ * GNU Library General Public License for more details.
|
||
|
|
+ *
|
||
|
|
+ * You should have received a copy of the GNU General Public License
|
||
|
|
+ * along with this program; if not, write to the Free Software
|
||
|
|
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
+ */
|
||
|
|
+
|
||
|
|
+#include <stdio.h>
|
||
|
|
+#include <signal.h>
|
||
|
|
+#include <pthread.h>
|
||
|
|
+
|
||
|
|
+struct gzip_handle {
|
||
|
|
+ FILE *file;
|
||
|
|
+ struct gzip_handle *gzip;
|
||
|
|
+
|
||
|
|
+ pid_t pid;
|
||
|
|
+ int rfd, wfd;
|
||
|
|
+ struct sigaction pipe_sa;
|
||
|
|
+ pthread_t thread;
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
+int gzip_exec(struct gzip_handle *zh, const char *filename);
|
||
|
|
+ssize_t gzip_read(struct gzip_handle *zh, char *buf, ssize_t len);
|
||
|
|
+ssize_t gzip_copy(struct gzip_handle *zh, FILE *out, ssize_t len);
|
||
|
|
+int gzip_close(struct gzip_handle *zh);
|
||
|
|
+FILE *gzip_fdopen(struct gzip_handle *zh, const char *filename);
|
||
|
|
+
|
||
|
|
+#define gzip_seek(zh, len) gzip_copy(zh, NULL, len)
|
||
|
|
--- a/libbb/Makefile.am
|
||
|
|
+++ b/libbb/Makefile.am
|
||
|
|
@@ -4,9 +4,8 @@ ALL_CFLAGS=-g -O -Wall -DHOST_CPU_STR=\"
|
||
|
|
|
||
|
|
noinst_LIBRARIES = libbb.a
|
||
|
|
|
||
|
|
-libbb_a_SOURCES = gz_open.c \
|
||
|
|
+libbb_a_SOURCES = \
|
||
|
|
libbb.h \
|
||
|
|
- unzip.c \
|
||
|
|
wfopen.c \
|
||
|
|
unarchive.c \
|
||
|
|
copy_file.c \
|
||
|
|
@@ -20,7 +19,8 @@ libbb_a_SOURCES = gz_open.c \
|
||
|
|
parse_mode.c \
|
||
|
|
time_string.c \
|
||
|
|
all_read.c \
|
||
|
|
- mode_string.c
|
||
|
|
+ mode_string.c \
|
||
|
|
+ gzip.c
|
||
|
|
|
||
|
|
libbb_la_CFLAGS = $(ALL_CFLAGS)
|
||
|
|
#libbb_la_LDFLAGS = -static
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/libbb/gzip.c
|
||
|
|
@@ -0,0 +1,208 @@
|
||
|
|
+/*
|
||
|
|
+ * Copyright (C) 2016 Jo-Philipp Wich <jo@mein.io>
|
||
|
|
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
|
||
|
|
+ *
|
||
|
|
+ * Zlib decrompression utility routines.
|
||
|
|
+ *
|
||
|
|
+ * This program is free software; you can redistribute it and/or modify
|
||
|
|
+ * it under the terms of the GNU General Public License as published by
|
||
|
|
+ * the Free Software Foundation; either version 2 of the License, or
|
||
|
|
+ * (at your option) any later version.
|
||
|
|
+ *
|
||
|
|
+ * This program is distributed in the hope that it will be useful,
|
||
|
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
+ * GNU Library General Public License for more details.
|
||
|
|
+ *
|
||
|
|
+ * You should have received a copy of the GNU General Public License
|
||
|
|
+ * along with this program; if not, write to the Free Software
|
||
|
|
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
+ */
|
||
|
|
+
|
||
|
|
+#include <string.h>
|
||
|
|
+#include <errno.h>
|
||
|
|
+#include <fcntl.h>
|
||
|
|
+#include <unistd.h>
|
||
|
|
+#include <poll.h>
|
||
|
|
+#include <stdlib.h>
|
||
|
|
+#include <sys/stat.h>
|
||
|
|
+#include <sys/wait.h>
|
||
|
|
+
|
||
|
|
+#include "gzip.h"
|
||
|
|
+
|
||
|
|
+static void
|
||
|
|
+to_devnull(int fd)
|
||
|
|
+{
|
||
|
|
+ int devnull = open("/dev/null", fd ? O_WRONLY : O_RDONLY);
|
||
|
|
+
|
||
|
|
+ if (devnull >= 0)
|
||
|
|
+ dup2(devnull, fd);
|
||
|
|
+
|
||
|
|
+ if (devnull > STDERR_FILENO)
|
||
|
|
+ close(devnull);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+void *
|
||
|
|
+gzip_thread(void *ptr)
|
||
|
|
+{
|
||
|
|
+ struct gzip_handle *zh = ptr;
|
||
|
|
+ char buf[4096];
|
||
|
|
+ int len, ret;
|
||
|
|
+
|
||
|
|
+ while (1) {
|
||
|
|
+ if (zh->file)
|
||
|
|
+ len = fread(buf, 1, sizeof(buf), zh->file);
|
||
|
|
+ else if (zh->gzip)
|
||
|
|
+ len = gzip_read(zh->gzip, buf, sizeof(buf));
|
||
|
|
+
|
||
|
|
+ if (len <= 0)
|
||
|
|
+ break;
|
||
|
|
+
|
||
|
|
+ do {
|
||
|
|
+ ret = write(zh->wfd, buf, len);
|
||
|
|
+ } while (ret == -1 && errno == EINTR);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ close(zh->wfd);
|
||
|
|
+ zh->wfd = -1;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+int
|
||
|
|
+gzip_exec(struct gzip_handle *zh, const char *filename)
|
||
|
|
+{
|
||
|
|
+ int rpipe[2] = { -1, -1 }, wpipe[2] = { -1, -1 };
|
||
|
|
+ struct sigaction pipe_sa = { .sa_handler = SIG_IGN };
|
||
|
|
+
|
||
|
|
+ zh->rfd = -1;
|
||
|
|
+ zh->wfd = -1;
|
||
|
|
+
|
||
|
|
+ if (sigaction(SIGPIPE, &pipe_sa, &zh->pipe_sa) < 0)
|
||
|
|
+ return -1;
|
||
|
|
+
|
||
|
|
+ if (pipe(rpipe) < 0)
|
||
|
|
+ return -1;
|
||
|
|
+
|
||
|
|
+ if (!filename && pipe(wpipe) < 0) {
|
||
|
|
+ close(rpipe[0]);
|
||
|
|
+ close(rpipe[1]);
|
||
|
|
+ return -1;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ zh->pid = vfork();
|
||
|
|
+
|
||
|
|
+ switch (zh->pid) {
|
||
|
|
+ case -1:
|
||
|
|
+ return -1;
|
||
|
|
+
|
||
|
|
+ case 0:
|
||
|
|
+ to_devnull(STDERR_FILENO);
|
||
|
|
+
|
||
|
|
+ if (filename) {
|
||
|
|
+ to_devnull(STDIN_FILENO);
|
||
|
|
+ }
|
||
|
|
+ else {
|
||
|
|
+ dup2(wpipe[0], STDIN_FILENO);
|
||
|
|
+ close(wpipe[0]);
|
||
|
|
+ close(wpipe[1]);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ dup2(rpipe[1], STDOUT_FILENO);
|
||
|
|
+ close(rpipe[0]);
|
||
|
|
+ close(rpipe[1]);
|
||
|
|
+
|
||
|
|
+ execlp("gzip", "gzip", "-d", "-c", filename, NULL);
|
||
|
|
+ exit(-1);
|
||
|
|
+
|
||
|
|
+ default:
|
||
|
|
+ zh->rfd = rpipe[0];
|
||
|
|
+ zh->wfd = wpipe[1];
|
||
|
|
+
|
||
|
|
+ fcntl(zh->rfd, F_SETFD, fcntl(zh->rfd, F_GETFD) | FD_CLOEXEC);
|
||
|
|
+ close(rpipe[1]);
|
||
|
|
+
|
||
|
|
+ if (zh->wfd >= 0) {
|
||
|
|
+ fcntl(zh->wfd, F_SETFD, fcntl(zh->wfd, F_GETFD) | FD_CLOEXEC);
|
||
|
|
+ close(wpipe[0]);
|
||
|
|
+ pthread_create(&zh->thread, NULL, gzip_thread, zh);
|
||
|
|
+ }
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+ssize_t
|
||
|
|
+gzip_read(struct gzip_handle *zh, char *buf, ssize_t len)
|
||
|
|
+{
|
||
|
|
+ ssize_t ret;
|
||
|
|
+
|
||
|
|
+ do {
|
||
|
|
+ ret = read(zh->rfd, buf, len);
|
||
|
|
+ } while (ret == -1 && errno != EINTR);
|
||
|
|
+
|
||
|
|
+ return ret;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+ssize_t
|
||
|
|
+gzip_copy(struct gzip_handle *zh, FILE *out, ssize_t len)
|
||
|
|
+{
|
||
|
|
+ char buf[4096];
|
||
|
|
+ ssize_t rlen, total = 0;
|
||
|
|
+
|
||
|
|
+ while (len > 0) {
|
||
|
|
+ rlen = gzip_read(zh, buf,
|
||
|
|
+ (len > sizeof(buf)) ? sizeof(buf) : len);
|
||
|
|
+
|
||
|
|
+ if (rlen <= 0)
|
||
|
|
+ break;
|
||
|
|
+
|
||
|
|
+ if (out != NULL) {
|
||
|
|
+ if (fwrite(buf, 1, rlen, out) != rlen)
|
||
|
|
+ break;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ len -= rlen;
|
||
|
|
+ total += rlen;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ return total;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+FILE *
|
||
|
|
+gzip_fdopen(struct gzip_handle *zh, const char *filename)
|
||
|
|
+{
|
||
|
|
+ memset(zh, 0, sizeof(*zh));
|
||
|
|
+
|
||
|
|
+ if (!filename || gzip_exec(zh, filename) < 0)
|
||
|
|
+ return NULL;
|
||
|
|
+
|
||
|
|
+ fcntl(zh->rfd, F_SETFL, fcntl(zh->rfd, F_GETFL) & ~O_NONBLOCK);
|
||
|
|
+
|
||
|
|
+ return fdopen(zh->rfd, "r");
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+int
|
||
|
|
+gzip_close(struct gzip_handle *zh)
|
||
|
|
+{
|
||
|
|
+ int code = -1;
|
||
|
|
+
|
||
|
|
+ if (zh->rfd >= 0)
|
||
|
|
+ close(zh->rfd);
|
||
|
|
+
|
||
|
|
+ if (zh->wfd >= 0)
|
||
|
|
+ close(zh->wfd);
|
||
|
|
+
|
||
|
|
+ if (zh->pid > 0) {
|
||
|
|
+ kill(zh->pid, SIGKILL);
|
||
|
|
+ waitpid(zh->pid, &code, 0);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ if (zh->file)
|
||
|
|
+ fclose(zh->file);
|
||
|
|
+
|
||
|
|
+ if (zh->thread)
|
||
|
|
+ pthread_join(zh->thread, NULL);
|
||
|
|
+
|
||
|
|
+ sigaction(SIGPIPE, &zh->pipe_sa, NULL);
|
||
|
|
+
|
||
|
|
+ return WIFEXITED(code) ? WEXITSTATUS(code) : -1;
|
||
|
|
+}
|
||
|
|
--- a/src/Makefile.am
|
||
|
|
+++ b/src/Makefile.am
|
||
|
|
@@ -3,4 +3,4 @@ bin_PROGRAMS = opkg-cl
|
||
|
|
|
||
|
|
opkg_cl_SOURCES = opkg-cl.c
|
||
|
|
opkg_cl_LDADD = $(top_builddir)/libopkg/libopkg.a \
|
||
|
|
- $(top_builddir)/libbb/libbb.a $(CURL_LIBS) $(GPGME_LIBS) $(OPENSSL_LIBS) $(PATHFINDER_LIBS)
|
||
|
|
+ $(top_builddir)/libbb/libbb.a $(CURL_LIBS) $(GPGME_LIBS) $(OPENSSL_LIBS) $(PATHFINDER_LIBS) -lpthread
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||
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--- a/tests/Makefile.am
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+++ b/tests/Makefile.am
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||
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@@ -16,7 +16,7 @@ noinst_PROGRAMS = libopkg_test
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#opkg_active_list_test_SOURCES = opkg_active_list_test.c
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#opkg_active_list_test_CFLAGS = $(ALL_CFLAGS) -I$(top_srcdir)
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||
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||
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-libopkg_test_LDADD = $(top_builddir)/libopkg/libopkg.a $(top_builddir)/libbb/libbb.a $(CURL_LIBS) $(GPGME_LIBS) $(OPENSSL_LIBS) $(PATHFINDER_LIBS)
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||
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+libopkg_test_LDADD = $(top_builddir)/libopkg/libopkg.a $(top_builddir)/libbb/libbb.a $(CURL_LIBS) $(GPGME_LIBS) $(OPENSSL_LIBS) $(PATHFINDER_LIBS) -lpthread
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||
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libopkg_test_SOURCE = libopkg_test.c
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||
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libopkg_test_LDFLAGS = -static
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||
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