abuild-gzsplit: new tool to split .apk to it's base components
required tool for re-signing packages
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parent
8bddd02b10
commit
6926e206a8
10
Makefile
10
Makefile
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@ -10,7 +10,7 @@ datadir ?= $(prefix)/share/$(PACKAGE)
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SCRIPTS := abuild abuild-keygen abuild-sign newapkbuild \
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abump apkgrel buildlab apkbuild-cpan checkapk \
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apkbuild-gem-resolver
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USR_BIN_FILES := $(SCRIPTS) abuild-tar abuild-sudo abuild-fetch
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USR_BIN_FILES := $(SCRIPTS) abuild-tar abuild-gzsplit abuild-sudo abuild-fetch
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SAMPLES := sample.APKBUILD sample.initd sample.confd \
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sample.pre-install sample.post-install
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AUTOTOOLS_TOOLCHAIN_FILES := config.sub config.guess
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@ -38,13 +38,16 @@ SED_REPLACE := -e 's:@VERSION@:$(FULL_VERSION):g' \
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SSL_CFLAGS ?= $(shell pkg-config --cflags openssl)
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SSL_LDFLAGS ?= $(shell pkg-config --cflags openssl)
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SSL_LIBS ?= $(shell pkg-config --libs openssl)
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ZLIB_LIBS ?= $(shell pkg-config --libs zlib)
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OBJS-abuild-tar = abuild-tar.o
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CFLAGS-abuild-tar.o = $(SSL_CFLAGS)
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LDFLAGS-abuild-tar = $(SSL_LDFLAGS)
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LIBS-abuild-tar = $(SSL_LIBS)
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OBJS-abuild-gzsplit = abuild-gzsplit.o
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LDFLAGS-abuild-gzsplit = $(ZLIB_LIBS)
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OBJS-abuild-sudo = abuild-sudo.o
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OBJS-abuild-fetch = abuild-fetch.o
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@ -76,6 +79,9 @@ abuild-tar: abuild-tar.o
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abuild-fetch: abuild-fetch.o
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$(LINK)
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abuild-gzsplit: abuild-gzsplit.o
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$(LINK)
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abuild-tar.static: abuild-tar.o
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$(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS-$@) -o $@ -static $(LIBS-$@) $^
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@ -0,0 +1,75 @@
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include <zlib.h>
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int main(void)
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{
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char obuf[8*1024], ibuf[8*1024];
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z_stream zs;
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int r = Z_OK, rc = 1, fd = -1;
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size_t len;
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if (inflateInit2(&zs, 15+32) != Z_OK)
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goto err;
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zs.avail_out = sizeof obuf;
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zs.next_out = obuf;
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while (1) {
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if (zs.avail_in == 0) {
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zs.avail_in = read(STDIN_FILENO, ibuf, sizeof ibuf);
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zs.next_in = ibuf;
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if (zs.avail_in < 0) goto err;
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if (zs.avail_in == 0 && r == Z_STREAM_END) goto ok;
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}
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r = inflate(&zs, Z_NO_FLUSH);
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if (r != Z_OK && r != Z_STREAM_END) goto err;
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len = sizeof obuf - zs.avail_out;
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if (len) {
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if (fd < 0) {
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const char *fn;
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if (strncmp(obuf, ".SIGN.", 6) == 0)
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fn = "signatures.tar.gz";
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else if (strncmp(obuf, ".PKGINFO", 8) == 0)
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fn = "control.tar.gz";
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else if (rc == 1)
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fn = "data.tar.gz", rc = 2;
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else
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goto err;
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fd = open(fn, O_CREAT|O_TRUNC|O_WRONLY, 0777);
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if (fd < 0) goto err;
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}
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zs.next_out = obuf;
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zs.avail_out = sizeof obuf;
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}
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if (zs.avail_in == 0 || r == Z_STREAM_END) {
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len = (void *)zs.next_in - (void *)ibuf;
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if (write(fd, ibuf, len) != len) goto err;
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memmove(ibuf, zs.next_in, zs.avail_in);
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zs.next_in = ibuf;
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}
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if (r == Z_STREAM_END) {
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if (fd >= 0) {
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close(fd);
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fd = -1;
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}
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inflateEnd(&zs);
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if (inflateInit2(&zs, 15+32) != Z_OK) goto err;
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}
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}
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ok:
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rc = 0;
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err:
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if (fd >= 0) close(fd);
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inflateEnd(&zs);
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if (rc) fprintf(stderr, "failed\n");
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return rc;
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}
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