#include #include #include #include #include #include "util/util.h" #include "util/debug.h" #define CHUNK_SIZE 16384 int gzip_decompress_to_file(const char *input, int output_fd) { int ret = Z_STREAM_ERROR; int input_fd; void *ptr; int len; struct stat stbuf; unsigned char buf[CHUNK_SIZE]; z_stream zs = { .zalloc = Z_NULL, .zfree = Z_NULL, .opaque = Z_NULL, .avail_in = 0, .next_in = Z_NULL, }; input_fd = open(input, O_RDONLY); if (input_fd < 0) return -1; if (fstat(input_fd, &stbuf) < 0) goto out_close; ptr = mmap(NULL, stbuf.st_size, PROT_READ, MAP_PRIVATE, input_fd, 0); if (ptr == MAP_FAILED) goto out_close; if (inflateInit2(&zs, 16 + MAX_WBITS) != Z_OK) goto out_unmap; zs.next_in = ptr; zs.avail_in = stbuf.st_size; do { zs.next_out = buf; zs.avail_out = CHUNK_SIZE; ret = inflate(&zs, Z_NO_FLUSH); switch (ret) { case Z_NEED_DICT: ret = Z_DATA_ERROR; /* fall through */ case Z_DATA_ERROR: case Z_MEM_ERROR: goto out; default: break; } len = CHUNK_SIZE - zs.avail_out; if (writen(output_fd, buf, len) != len) { ret = Z_DATA_ERROR; goto out; } } while (ret != Z_STREAM_END); out: inflateEnd(&zs); out_unmap: munmap(ptr, stbuf.st_size); out_close: close(input_fd); return ret == Z_STREAM_END ? 0 : -1; } value='switch'/> net-next plumbingsTobias Klauser
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authorJohannes Berg <johannes.berg@intel.com>2017-02-07 10:40:50 +0100
committerJohannes Berg <johannes.berg@intel.com>2017-02-07 10:40:50 +0100
commitbddb2afcb6c52a545f18fb9bcd4829828ebf4a3a (patch)
tree0021fe481f8acf3694d92d72f3dd1b2a71a20ca3 /net/ipv4/raw.c
parent228c8c6b1f4376788e9d5ab00d50b10228eb40d3 (diff)
mac80211: add back lost debugfs files
Somehow these files were never present or lost, but the code is there and they seem somewhat useful, so add them back. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/ipv4/raw.c')