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-rw-r--r--src/blob.c48
1 files changed, 31 insertions, 17 deletions
diff --git a/src/blob.c b/src/blob.c
index f6420b8..43c94ea 100644
--- a/src/blob.c
+++ b/src/blob.c
@@ -75,26 +75,25 @@ int apk_blob_rsplit(apk_blob_t blob, char split, apk_blob_t *l, apk_blob_t *r)
return 1;
}
-int apk_blob_splitstr(apk_blob_t blob, const char *split, apk_blob_t *l, apk_blob_t *r)
+int apk_blob_split(apk_blob_t blob, apk_blob_t split, apk_blob_t *l, apk_blob_t *r)
{
- int splitlen = strlen(split);
- char *pos = blob.ptr, *end = blob.ptr + blob.len - splitlen + 1;
+ char *pos = blob.ptr, *end = blob.ptr + blob.len - split.len + 1;
if (end < pos)
return 0;
while (1) {
- pos = memchr(pos, split[0], end - pos);
+ pos = memchr(pos, split.ptr[0], end - pos);
if (pos == NULL)
return 0;
- if (memcmp(pos, split, splitlen) != 0) {
+ if (split.len > 1 && memcmp(pos, split.ptr, split.len) != 0) {
pos++;
continue;
}
*l = APK_BLOB_PTR_PTR(blob.ptr, pos-1);
- *r = APK_BLOB_PTR_PTR(pos+splitlen, blob.ptr+blob.len-1);
+ *r = APK_BLOB_PTR_PTR(pos+split.len, blob.ptr+blob.len-1);
return 1;
}
}
@@ -122,11 +121,11 @@ int apk_blob_compare(apk_blob_t a, apk_blob_t b)
int apk_blob_for_each_segment(apk_blob_t blob, const char *split,
int (*cb)(void *ctx, apk_blob_t blob), void *ctx)
{
- apk_blob_t l, r;
+ apk_blob_t l, r, s = APK_BLOB_STR(split);
int rc;
r = blob;
- while (apk_blob_splitstr(r, split, &l, &r)) {
+ while (apk_blob_split(r, s, &l, &r)) {
rc = cb(ctx, l);
if (rc != 0)
return rc;
@@ -136,7 +135,7 @@ int apk_blob_for_each_segment(apk_blob_t blob, const char *split,
return 0;
}
-static int dx(int c)
+static inline int dx(int c)
{
if (c >= '0' && c <= '9')
return c - '0';
@@ -147,24 +146,39 @@ static int dx(int c)
return -1;
}
-unsigned apk_blob_uint(apk_blob_t blob, int base)
+unsigned int apk_blob_parse_uint(apk_blob_t *blob, int base)
{
- unsigned val;
- int i, ch;
+ unsigned int val;
+ int ch;
val = 0;
- for (i = 0; i < blob.len; i++) {
- if (blob.ptr[i] == 0)
- break;
- ch = dx(blob.ptr[i]);
+ while (blob->len && blob->ptr[0] != 0) {
+ ch = dx(blob->ptr[0]);
if (ch < 0 || ch >= base)
- return 0;
+ break;
val *= base;
val += ch;
+
+ blob->ptr++;
+ blob->len--;
}
+
return val;
}
+int apk_blob_parse_char(apk_blob_t *blob)
+{
+ int r;
+
+ if (blob->len == 0 || blob->ptr == NULL)
+ return -1;
+ r = blob->ptr[0];
+ blob->ptr++;
+ blob->len--;
+
+ return r;
+}
+
int apk_hexdump_parse(apk_blob_t to, apk_blob_t from)
{
int i;