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author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
commit | 5209a846a9157e649fcdcb561f7eaf19c8c0e465 (patch) | |
tree | b0a7e52b5646c8eec182dbc391e7934b6804488c /lib/util/util_strlist.c | |
parent | 625359b2e266105022309df8985720108ecd6f67 (diff) | |
parent | 2ee8d29d22bcb1c350ab59d71b0aee548489bc9c (diff) | |
download | samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.gz samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.bz2 samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into regsrv
Conflicts:
source4/lib/registry/ldb.c
source4/rpc_server/winreg/rpc_winreg.c
Diffstat (limited to 'lib/util/util_strlist.c')
-rw-r--r-- | lib/util/util_strlist.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/lib/util/util_strlist.c b/lib/util/util_strlist.c new file mode 100644 index 0000000000..b069a11e38 --- /dev/null +++ b/lib/util/util_strlist.c @@ -0,0 +1,310 @@ +/* + Unix SMB/CIFS implementation. + + Copyright (C) Andrew Tridgell 2005 + Copyright (C) Jelmer Vernooij 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "system/locale.h" + +#undef strcasecmp + +/** + * @file + * @brief String list manipulation + */ + +/** + build a null terminated list of strings from a input string and a + separator list. The separator list must contain characters less than + or equal to 0x2f for this to work correctly on multi-byte strings +*/ +_PUBLIC_ char **str_list_make(TALLOC_CTX *mem_ctx, const char *string, const char *sep) +{ + int num_elements = 0; + char **ret = NULL; + + if (sep == NULL) { + sep = LIST_SEP; + } + + ret = talloc_array(mem_ctx, char *, 1); + if (ret == NULL) { + return NULL; + } + + while (string && *string) { + size_t len = strcspn(string, sep); + char **ret2; + + if (len == 0) { + string += strspn(string, sep); + continue; + } + + ret2 = talloc_realloc(mem_ctx, ret, char *, num_elements+2); + if (ret2 == NULL) { + talloc_free(ret); + return NULL; + } + ret = ret2; + + ret[num_elements] = talloc_strndup(ret, string, len); + if (ret[num_elements] == NULL) { + talloc_free(ret); + return NULL; + } + + num_elements++; + string += len; + } + + ret[num_elements] = NULL; + + return ret; +} + +/** + * build a null terminated list of strings from an argv-like input string + * Entries are seperated 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) +{ + int num_elements = 0; + const char **ret = NULL; + + ret = talloc_array(mem_ctx, const char *, 1); + if (ret == NULL) { + return NULL; + } + + if (sep == NULL) + sep = " \t\n\r"; + + while (string && *string) { + size_t len = strcspn(string, sep); + char *element; + const char **ret2; + + if (len == 0) { + string += strspn(string, sep); + continue; + } + + if (*string == '\"') { + string++; + len = strcspn(string, "\""); + element = talloc_strndup(ret, string, len); + string += len + 1; + } else { + element = talloc_strndup(ret, string, len); + string += len; + } + + if (element == NULL) { + talloc_free(ret); + return NULL; + } + + ret2 = talloc_realloc(mem_ctx, ret, const char *, num_elements+2); + if (ret2 == NULL) { + talloc_free(ret); + return NULL; + } + ret = ret2; + + ret[num_elements] = element; + + num_elements++; + } + + ret[num_elements] = NULL; + + return ret; + +} + +/** + * join a list back to one string + */ +_PUBLIC_ char *str_list_join(TALLOC_CTX *mem_ctx, const char **list, char seperator) +{ + char *ret = NULL; + int i; + + if (list[0] == NULL) + return talloc_strdup(mem_ctx, ""); + + ret = talloc_strdup(mem_ctx, list[0]); + + for (i = 1; list[i]; i++) { + ret = talloc_asprintf_append_buffer(ret, "%c%s", seperator, list[i]); + } + + return ret; +} + +/** join a list back to one (shell-like) string; entries + * seperated by spaces, using quotes where necessary */ +_PUBLIC_ char *str_list_join_shell(TALLOC_CTX *mem_ctx, const char **list, char sep) +{ + char *ret = NULL; + int i; + + if (list[0] == NULL) + return talloc_strdup(mem_ctx, ""); + + if (strchr(list[0], ' ') || strlen(list[0]) == 0) + ret = talloc_asprintf(mem_ctx, "\"%s\"", list[0]); + else + ret = talloc_strdup(mem_ctx, list[0]); + + for (i = 1; list[i]; i++) { + if (strchr(list[i], ' ') || strlen(list[i]) == 0) + ret = talloc_asprintf_append_buffer(ret, "%c\"%s\"", sep, list[i]); + else + ret = talloc_asprintf_append_buffer(ret, "%c%s", sep, list[i]); + } + + return ret; +} + +/** + return the number of elements in a string list +*/ +_PUBLIC_ size_t str_list_length(const char * const*list) +{ + size_t ret; + for (ret=0;list && list[ret];ret++) /* noop */ ; + return ret; +} + + +/** + copy a string list +*/ +_PUBLIC_ char **str_list_copy(TALLOC_CTX *mem_ctx, const char **list) +{ + int i; + char **ret; + + if (list == NULL) + return NULL; + + ret = talloc_array(mem_ctx, char *, str_list_length(list)+1); + if (ret == NULL) + return NULL; + + for (i=0;list && list[i];i++) { + ret[i] = talloc_strdup(ret, list[i]); + if (ret[i] == NULL) { + talloc_free(ret); + return NULL; + } + } + ret[i] = NULL; + return ret; +} + +/** + Return true if all the elements of the list match exactly. + */ +_PUBLIC_ bool str_list_equal(const char **list1, const char **list2) +{ + int i; + + if (list1 == NULL || list2 == NULL) { + return (list1 == list2); + } + + for (i=0;list1[i] && list2[i];i++) { + if (strcmp(list1[i], list2[i]) != 0) { + return false; + } + } + if (list1[i] || list2[i]) { + return false; + } + return true; +} + + +/** + add an entry to a string list +*/ +_PUBLIC_ const char **str_list_add(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] = talloc_strdup(ret, s); + if (ret[len] == NULL) return NULL; + + ret[len+1] = NULL; + + return ret; +} + +/** + remove an entry from a string list +*/ +_PUBLIC_ void str_list_remove(const char **list, const char *s) +{ + int i; + + for (i=0;list[i];i++) { + if (strcmp(list[i], s) == 0) break; + } + if (!list[i]) return; + + for (;list[i];i++) { + list[i] = list[i+1]; + } +} + + +/** + return true if a string is in a list +*/ +_PUBLIC_ bool str_list_check(const char **list, const char *s) +{ + int i; + + for (i=0;list[i];i++) { + if (strcmp(list[i], s) == 0) return true; + } + return false; +} + +/** + return true if a string is in a list, case insensitively +*/ +_PUBLIC_ bool str_list_check_ci(const char **list, const char *s) +{ + int i; + + for (i=0;list[i];i++) { + if (strcasecmp(list[i], s) == 0) return true; + } + return false; +} + + |