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authorWolfgang Denk <wd@denx.de>2013-03-23 23:50:29 +0000
committerTom Rini <trini@ti.com>2013-05-01 16:24:00 -0400
commit5a31ea04c9ee5544fbb70ad7597ea4b294840eab (patch)
treea6a8c141675e4a4f712aa05b9d2aa5792a0309dd /lib
parentea009d4743ab4b801703982086e053e74266ff4c (diff)
"env grep" - reimplement command using hexport_r()
Also drop hstrstr_r() which is not needed any more. The new code is way more flexible. Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'lib')
-rw-r--r--lib/hashtable.c64
1 files changed, 28 insertions, 36 deletions
diff --git a/lib/hashtable.c b/lib/hashtable.c
index 305824b6ead..1703941a5ab 100644
--- a/lib/hashtable.c
+++ b/lib/hashtable.c
@@ -210,29 +210,6 @@ void hdestroy_r(struct hsearch_data *htab)
* example for functions like hdelete().
*/
-/*
- * hstrstr_r - return index to entry whose key and/or data contains match
- */
-int hstrstr_r(const char *match, int last_idx, ENTRY ** retval,
- struct hsearch_data *htab)
-{
- unsigned int idx;
-
- for (idx = last_idx + 1; idx < htab->size; ++idx) {
- if (htab->table[idx].used <= 0)
- continue;
- if (strstr(htab->table[idx].entry.key, match) ||
- strstr(htab->table[idx].entry.data, match)) {
- *retval = &htab->table[idx].entry;
- return idx;
- }
- }
-
- __set_errno(ESRCH);
- *retval = NULL;
- return 0;
-}
-
int hmatch_r(const char *match, int last_idx, ENTRY ** retval,
struct hsearch_data *htab)
{
@@ -563,23 +540,38 @@ static int cmpkey(const void *p1, const void *p2)
return (strcmp(e1->key, e2->key));
}
-static int match_strings(ENTRY *ep, int flag,
+static int match_string(int flag, const char *str, const char *pat)
+{
+ switch (flag & H_MATCH_METHOD) {
+ case H_MATCH_IDENT:
+ if (strcmp(str, pat) == 0)
+ return 1;
+ break;
+ case H_MATCH_SUBSTR:
+ if (strstr(str, pat))
+ return 1;
+ break;
+ default:
+ printf("## ERROR: unsupported match method: 0x%02x\n",
+ flag & H_MATCH_METHOD);
+ break;
+ }
+ return 0;
+}
+
+static int match_entry(ENTRY *ep, int flag,
int argc, char * const argv[])
{
int arg;
- for (arg = 0; arg < argc; ++arg) {
+ for (arg = 1; arg < argc; ++arg) {
if (flag & H_MATCH_KEY) {
- switch (flag & H_MATCH_METHOD) {
- case H_MATCH_IDENT:
- if (strcmp(argv[arg], ep->key) == 0)
- return 1;
- break;
- default:
- printf("## ERROR: unsupported match method: 0x%02x\n",
- flag & H_MATCH_METHOD);
- break;
- }
+ if (match_string(flag, ep->key, argv[arg]))
+ return 1;
+ }
+ if (flag & H_MATCH_DATA) {
+ if (match_string(flag, ep->data, argv[arg]))
+ return 1;
}
}
return 0;
@@ -611,7 +603,7 @@ ssize_t hexport_r(struct hsearch_data *htab, const char sep, int flag,
if (htab->table[i].used > 0) {
ENTRY *ep = &htab->table[i].entry;
- int found = match_strings(ep, flag, argc, argv);
+ int found = match_entry(ep, flag, argc, argv);
if ((argc > 0) && (found == 0))
continue;