#include "includes.h"
#include "system/locale.h"
+#include "lib/util/tsort.h"
#undef strcasecmp
* @brief String list manipulation
*/
+/**
+ build an empty (only NULL terminated) list of strings (for expansion with str_list_add() etc)
+*/
+_PUBLIC_ char **str_list_make_empty(TALLOC_CTX *mem_ctx)
+{
+ char **ret = NULL;
+
+ ret = talloc_array(mem_ctx, char *, 1);
+ if (ret == NULL) {
+ return NULL;
+ }
+
+ ret[0] = NULL;
+
+ return ret;
+}
+
+/**
+ place the only element 'entry' into a new, NULL terminated string list
+*/
+_PUBLIC_ char **str_list_make_single(TALLOC_CTX *mem_ctx, const char *entry)
+{
+ char **ret = NULL;
+
+ ret = talloc_array(mem_ctx, char *, 2);
+ if (ret == NULL) {
+ return NULL;
+ }
+
+ ret[0] = talloc_strdup(ret, entry);
+ if (!ret[0]) {
+ talloc_free(ret);
+ return NULL;
+ }
+ ret[1] = NULL;
+
+ return ret;
+}
+
/**
build a null terminated list of strings from a input string and a
separator list. The separator list must contain characters less than
continue;
}
- ret2 = talloc_realloc(mem_ctx, ret, char *, num_elements+2);
+ ret2 = talloc_realloc(mem_ctx, ret, char *,
+ num_elements+2);
if (ret2 == NULL) {
talloc_free(ret);
return NULL;
/**
* build a null terminated list of strings from an argv-like input string
- * Entries are seperated by spaces and can be enclosed by quotes.
+ * Entries are separated by spaces and can be enclosed by quotes.
* Does NOT support escaping
*/
-_PUBLIC_ const char **str_list_make_shell(TALLOC_CTX *mem_ctx, const char *string, const char *sep)
+_PUBLIC_ char **str_list_make_shell(TALLOC_CTX *mem_ctx, const char *string, const char *sep)
{
int num_elements = 0;
- const char **ret = NULL;
+ char **ret = NULL;
- ret = talloc_array(mem_ctx, const char *, 1);
+ ret = talloc_array(mem_ctx, char *, 1);
if (ret == NULL) {
return NULL;
}
while (string && *string) {
size_t len = strcspn(string, sep);
char *element;
- const char **ret2;
+ char **ret2;
if (len == 0) {
string += strspn(string, sep);
return NULL;
}
- ret2 = talloc_realloc(mem_ctx, ret, const char *, num_elements+2);
+ ret2 = talloc_realloc(mem_ctx, ret, char *, num_elements+2);
if (ret2 == NULL) {
talloc_free(ret);
return NULL;
/**
* join a list back to one string
*/
-_PUBLIC_ char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char seperator)
+_PUBLIC_ char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char separator)
{
char *ret = NULL;
int i;
ret = talloc_strdup(mem_ctx, list[0]);
for (i = 1; list[i]; i++) {
- ret = talloc_asprintf_append_buffer(ret, "%c%s", seperator, list[i]);
+ ret = talloc_asprintf_append_buffer(ret, "%c%s", separator, list[i]);
}
return ret;
}
/** join a list back to one (shell-like) string; entries
- * seperated by spaces, using quotes where necessary */
+ * separated by spaces, using quotes where necessary */
_PUBLIC_ char *str_list_join_shell(TALLOC_CTX *mem_ctx, const char **list, char sep)
{
char *ret = NULL;
/**
return the number of elements in a string list
*/
-_PUBLIC_ size_t str_list_length(const char * const*list)
+_PUBLIC_ size_t str_list_length(const char * const *list)
{
size_t ret;
for (ret=0;list && list[ret];ret++) /* noop */ ;
/**
Return true if all the elements of the list match exactly.
*/
-_PUBLIC_ bool str_list_equal(const char **list1, const char **list2)
+_PUBLIC_ bool str_list_equal(const char * const *list1,
+ const char * const *list2)
{
int i;
{
int i;
- for (i=0;list[i];i++) {
+ for (i=0; list != NULL && list[i] != NULL; i++) {
if (strcmp(list[i], s) == 0) return true;
}
return false;
{
int i;
- for (i=0;list[i];i++) {
+ for (i=0; list != NULL && list[i] != NULL; i++) {
if (strcasecmp(list[i], s) == 0) return true;
}
return false;
}
+/**
+ append one list to another - expanding list1
+*/
+_PUBLIC_ const char **str_list_append(const char **list1,
+ const char * const *list2)
+{
+ size_t len1 = str_list_length(list1);
+ size_t len2 = str_list_length(list2);
+ const char **ret;
+ int i;
+
+ ret = talloc_realloc(NULL, list1, const char *, len1+len2+1);
+ if (ret == NULL) return NULL;
+
+ for (i=len1;i<len1+len2;i++) {
+ ret[i] = talloc_strdup(ret, list2[i-len1]);
+ if (ret[i] == NULL) {
+ return NULL;
+ }
+ }
+ ret[i] = NULL;
+
+ return ret;
+}
+
+static int list_cmp(const char **el1, const char **el2)
+{
+ return strcmp(*el1, *el2);
+}
+
+/*
+ return a list that only contains the unique elements of a list,
+ removing any duplicates
+ */
+_PUBLIC_ const char **str_list_unique(const char **list)
+{
+ size_t len = str_list_length(list);
+ const char **list2;
+ int i, j;
+ if (len < 2) {
+ return list;
+ }
+ list2 = (const char **)talloc_memdup(list, list,
+ sizeof(list[0])*(len+1));
+ TYPESAFE_QSORT(list2, len, list_cmp);
+ list[0] = list2[0];
+ for (i=j=1;i<len;i++) {
+ if (strcmp(list2[i], list[j-1]) != 0) {
+ list[j] = list2[i];
+ j++;
+ }
+ }
+ list[j] = NULL;
+ list = talloc_realloc(NULL, list, const char *, j + 1);
+ talloc_free(list2);
+ return list;
+}
+
+/*
+ very useful when debugging complex list related code
+ */
+_PUBLIC_ void str_list_show(const char **list)
+{
+ int i;
+ DEBUG(0,("{ "));
+ for (i=0;list && list[i];i++) {
+ DEBUG(0,("\"%s\", ", list[i]));
+ }
+ DEBUG(0,("}\n"));
+}
+
+
+
+/**
+ append one list to another - expanding list1
+ this assumes the elements of list2 are const pointers, so we can re-use them
+*/
+_PUBLIC_ const char **str_list_append_const(const char **list1,
+ const char **list2)
+{
+ size_t len1 = str_list_length(list1);
+ size_t len2 = str_list_length(list2);
+ const char **ret;
+ int i;
+
+ ret = talloc_realloc(NULL, list1, const char *, len1+len2+1);
+ if (ret == NULL) return NULL;
+
+ for (i=len1;i<len1+len2;i++) {
+ ret[i] = list2[i-len1];
+ }
+ ret[i] = NULL;
+
+ return ret;
+}
+
+/**
+ * Add a string to an array of strings.
+ *
+ * num should be a pointer to an integer that holds the current
+ * number of elements in strings. It will be updated by this function.
+ */
+_PUBLIC_ bool add_string_to_array(TALLOC_CTX *mem_ctx,
+ const char *str, const char ***strings, int *num)
+{
+ char *dup_str = talloc_strdup(mem_ctx, str);
+
+ *strings = talloc_realloc(mem_ctx,
+ *strings,
+ const char *, ((*num)+1));
+
+ if ((*strings == NULL) || (dup_str == NULL)) {
+ *num = 0;
+ return false;
+ }
+
+ (*strings)[*num] = dup_str;
+ *num += 1;
+
+ return true;
+}
+
+/**
+ add an entry to a string list
+ this assumes s will not change
+*/
+_PUBLIC_ const char **str_list_add_const(const char **list, const char *s)
+{
+ size_t len = str_list_length(list);
+ const char **ret;
+
+ ret = talloc_realloc(NULL, list, const char *, len+2);
+ if (ret == NULL) return NULL;
+
+ ret[len] = s;
+ ret[len+1] = NULL;
+
+ return ret;
+}
+
+/**
+ copy a string list
+ this assumes list will not change
+*/
+_PUBLIC_ const char **str_list_copy_const(TALLOC_CTX *mem_ctx,
+ const char **list)
+{
+ int i;
+ const char **ret;
+
+ if (list == NULL)
+ return NULL;
+
+ ret = talloc_array(mem_ctx, const char *, str_list_length(list)+1);
+ if (ret == NULL)
+ return NULL;
+
+ for (i=0;list && list[i];i++) {
+ ret[i] = list[i];
+ }
+ ret[i] = NULL;
+ return ret;
+}
+
+/**
+ * Needed for making an "unconst" list "const"
+ */
+_PUBLIC_ const char **const_str_list(char **list)
+{
+ return discard_const_p(const char *, list);
+}
+
+/**
+ * str_list_make, v3 version. The v4 version does not
+ * look at quoted strings with embedded blanks, so
+ * do NOT merge this function please!
+ */
+#define S_LIST_ABS 16 /* List Allocation Block Size */
+
+char **str_list_make_v3(TALLOC_CTX *mem_ctx, const char *string,
+ const char *sep)
+{
+ char **list;
+ const char *str;
+ char *s, *tok;
+ int num, lsize;
+
+ if (!string || !*string)
+ return NULL;
+
+ list = talloc_array(mem_ctx, char *, S_LIST_ABS+1);
+ if (list == NULL) {
+ return NULL;
+ }
+ lsize = S_LIST_ABS;
+
+ s = talloc_strdup(list, string);
+ if (s == NULL) {
+ DEBUG(0,("str_list_make: Unable to allocate memory"));
+ TALLOC_FREE(list);
+ return NULL;
+ }
+ if (!sep) sep = LIST_SEP;
+
+ num = 0;
+ str = s;
+
+ while (next_token_talloc(list, &str, &tok, sep)) {
+
+ if (num == lsize) {
+ char **tmp;
+
+ lsize += S_LIST_ABS;
+
+ tmp = talloc_realloc(mem_ctx, list, char *,
+ lsize + 1);
+ if (tmp == NULL) {
+ DEBUG(0,("str_list_make: "
+ "Unable to allocate memory"));
+ TALLOC_FREE(list);
+ return NULL;
+ }
+
+ list = tmp;
+
+ memset (&list[num], 0,
+ ((sizeof(char*)) * (S_LIST_ABS +1)));
+ }
+
+ list[num] = tok;
+ num += 1;
+ }
+
+ list[num] = NULL;
+
+ TALLOC_FREE(s);
+ return list;
+}
git.samba.org / sfrench / samba-autobuild / .git / blobdiff