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path: root/libarchive/archive_read_support_format_xar.c
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Diffstat (limited to 'libarchive/archive_read_support_format_xar.c')
-rw-r--r--libarchive/archive_read_support_format_xar.c32
1 files changed, 23 insertions, 9 deletions
diff --git a/libarchive/archive_read_support_format_xar.c b/libarchive/archive_read_support_format_xar.c
index 7a22beb9d8e4..602fc7722144 100644
--- a/libarchive/archive_read_support_format_xar.c
+++ b/libarchive/archive_read_support_format_xar.c
@@ -1040,6 +1040,9 @@ atol10(const char *p, size_t char_cnt)
uint64_t l;
int digit;
+ if (char_cnt == 0)
+ return (0);
+
l = 0;
digit = *p - '0';
while (digit >= 0 && digit < 10 && char_cnt-- > 0) {
@@ -1054,7 +1057,10 @@ atol8(const char *p, size_t char_cnt)
{
int64_t l;
int digit;
-
+
+ if (char_cnt == 0)
+ return (0);
+
l = 0;
while (char_cnt-- > 0) {
if (*p >= '0' && *p <= '7')
@@ -2623,6 +2629,14 @@ strappend_base64(struct xar *xar,
archive_strncat(as, (const char *)buff, len);
}
+static int
+is_string(const char *known, const char *data, size_t len)
+{
+ if (strlen(known) != len)
+ return -1;
+ return memcmp(data, known, len);
+}
+
static void
xml_data(void *userData, const char *s, int len)
{
@@ -2674,26 +2688,26 @@ xml_data(void *userData, const char *s, int len)
archive_strncpy(&(xar->file->symlink), s, len);
break;
case FILE_TYPE:
- if (strncmp("file", s, len) == 0 ||
- strncmp("hardlink", s, len) == 0)
+ if (is_string("file", s, len) == 0 ||
+ is_string("hardlink", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFREG;
- if (strncmp("directory", s, len) == 0)
+ if (is_string("directory", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFDIR;
- if (strncmp("symlink", s, len) == 0)
+ if (is_string("symlink", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFLNK;
- if (strncmp("character special", s, len) == 0)
+ if (is_string("character special", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFCHR;
- if (strncmp("block special", s, len) == 0)
+ if (is_string("block special", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFBLK;
- if (strncmp("socket", s, len) == 0)
+ if (is_string("socket", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFSOCK;
- if (strncmp("fifo", s, len) == 0)
+ if (is_string("fifo", s, len) == 0)
xar->file->mode =
(xar->file->mode & ~AE_IFMT) | AE_IFIFO;
xar->file->has |= HAS_TYPE;