diff options
Diffstat (limited to 'lib/earlycpio.c')
-rw-r--r-- | lib/earlycpio.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/lib/earlycpio.c b/lib/earlycpio.c index 7aa7ce250c94..3eb3e4722b8e 100644 --- a/lib/earlycpio.c +++ b/lib/earlycpio.c | |||
@@ -49,22 +49,23 @@ enum cpio_fields { | |||
49 | 49 | ||
50 | /** | 50 | /** |
51 | * cpio_data find_cpio_data - Search for files in an uncompressed cpio | 51 | * cpio_data find_cpio_data - Search for files in an uncompressed cpio |
52 | * @path: The directory to search for, including a slash at the end | 52 | * @path: The directory to search for, including a slash at the end |
53 | * @data: Pointer to the the cpio archive or a header inside | 53 | * @data: Pointer to the the cpio archive or a header inside |
54 | * @len: Remaining length of the cpio based on data pointer | 54 | * @len: Remaining length of the cpio based on data pointer |
55 | * @offset: When a matching file is found, this is the offset to the | 55 | * @nextoff: When a matching file is found, this is the offset from the |
56 | * beginning of the cpio. It can be used to iterate through | 56 | * beginning of the cpio to the beginning of the next file, not the |
57 | * the cpio to find all files inside of a directory path | 57 | * matching file itself. It can be used to iterate through the cpio |
58 | * to find all files inside of a directory path. | ||
58 | * | 59 | * |
59 | * @return: struct cpio_data containing the address, length and | 60 | * @return: struct cpio_data containing the address, length and |
60 | * filename (with the directory path cut off) of the found file. | 61 | * filename (with the directory path cut off) of the found file. |
61 | * If you search for a filename and not for files in a directory, | 62 | * If you search for a filename and not for files in a directory, |
62 | * pass the absolute path of the filename in the cpio and make sure | 63 | * pass the absolute path of the filename in the cpio and make sure |
63 | * the match returned an empty filename string. | 64 | * the match returned an empty filename string. |
64 | */ | 65 | */ |
65 | 66 | ||
66 | struct cpio_data find_cpio_data(const char *path, void *data, | 67 | struct cpio_data find_cpio_data(const char *path, void *data, |
67 | size_t len, long *offset) | 68 | size_t len, long *nextoff) |
68 | { | 69 | { |
69 | const size_t cpio_header_len = 8*C_NFIELDS - 2; | 70 | const size_t cpio_header_len = 8*C_NFIELDS - 2; |
70 | struct cpio_data cd = { NULL, 0, "" }; | 71 | struct cpio_data cd = { NULL, 0, "" }; |
@@ -124,7 +125,7 @@ struct cpio_data find_cpio_data(const char *path, void *data, | |||
124 | if ((ch[C_MODE] & 0170000) == 0100000 && | 125 | if ((ch[C_MODE] & 0170000) == 0100000 && |
125 | ch[C_NAMESIZE] >= mypathsize && | 126 | ch[C_NAMESIZE] >= mypathsize && |
126 | !memcmp(p, path, mypathsize)) { | 127 | !memcmp(p, path, mypathsize)) { |
127 | *offset = (long)nptr - (long)data; | 128 | *nextoff = (long)nptr - (long)data; |
128 | if (ch[C_NAMESIZE] - mypathsize >= MAX_CPIO_FILE_NAME) { | 129 | if (ch[C_NAMESIZE] - mypathsize >= MAX_CPIO_FILE_NAME) { |
129 | pr_warn( | 130 | pr_warn( |
130 | "File %s exceeding MAX_CPIO_FILE_NAME [%d]\n", | 131 | "File %s exceeding MAX_CPIO_FILE_NAME [%d]\n", |