diff options
Diffstat (limited to 'lib/hashtable.c')
| -rw-r--r-- | lib/hashtable.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/lib/hashtable.c b/lib/hashtable.c index 0610e867d..6cfba5668 100644 --- a/lib/hashtable.c +++ b/lib/hashtable.c @@ -658,7 +658,7 @@ static int is_var_in_set(const char *name, int nvars, char * const vars[]) int himport_r(struct hsearch_data *htab, const char *env, size_t size, const char sep, int flag, - int nvars, char * const vars[]) + int nvars, char * const vars[], int do_apply) { char *data, *sp, *dp, *name, *value; @@ -772,6 +772,24 @@ int himport_r(struct hsearch_data *htab, e.key = name; e.data = value; + /* if there is an apply function, check what it has to say */ + if (do_apply && htab->apply != NULL) { + debug("searching before calling cb function" + " for %s\n", name); + /* + * Search for variable in existing env, so to pass + * its previous value to the apply callback + */ + hsearch_r(e, FIND, &rv, htab); + debug("previous value was %s\n", rv ? rv->data : ""); + if (htab->apply(name, rv ? rv->data : NULL, + value, flag)) { + debug("callback function refused to set" + " variable %s, skipping it!\n", name); + continue; + } + } + hsearch_r(e, ENTER, &rv, htab); if (rv == NULL) { printf("himport_r: can't insert \"%s=%s\" into hash table\n", |