diff options
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/string_utils.c | 150 | ||||
-rw-r--r-- | src/util/util.h | 8 |
2 files changed, 158 insertions, 0 deletions
diff --git a/src/util/string_utils.c b/src/util/string_utils.c new file mode 100644 index 000000000..8d878923f --- /dev/null +++ b/src/util/string_utils.c @@ -0,0 +1,150 @@ +/* + SSSD + + Authors: + Lukas Slebodnik <slebodnikl@redhat.com> + + Copyright (C) 2014 Red Hat + + 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 "util/util.h" + +const char * sss_replace_whitespaces(TALLOC_CTX *mem_ctx, + const char *orig_name, + const char *replace_string) +{ + char *new_name; + const char *ptr; + size_t replace_string_len; + TALLOC_CTX *tmp_ctx; + + if (replace_string == NULL || replace_string[0] == '\0') { + return orig_name; + } + + replace_string_len = strlen(replace_string); + /* faster implementations without multiple allocations */ + if (replace_string_len == 1) { + char *p; + new_name = talloc_strdup(mem_ctx, orig_name); + if (new_name == NULL) { + return NULL; + } + + for (p = new_name; *p != '\0'; ++p) { + if (isspace(*p)) { + *p = replace_string[0]; + } + } + + return new_name; + } + + tmp_ctx = talloc_new(NULL); + if (tmp_ctx == NULL) { + return NULL; + } + + new_name = talloc_strdup(tmp_ctx, ""); + if (new_name == NULL) { + goto done; + } + + ptr = orig_name; + while (*ptr != '\0') { + if (isspace(*ptr)) { + new_name = talloc_asprintf_append(new_name, "%s", replace_string); + } else { + new_name = talloc_asprintf_append(new_name, "%c", *ptr); + } + if (new_name == NULL) { + goto done;; + } + + ++ptr; + } + + new_name = talloc_steal(mem_ctx, new_name); +done: + talloc_free(tmp_ctx); + return new_name; +} + +char * sss_reverse_replace_whitespaces(TALLOC_CTX *mem_ctx, + char *orig_name, + const char *replace_string) +{ + TALLOC_CTX *tmp_ctx; + char *substr; + char *new_name; + const char *ptr = orig_name; + size_t replace_string_len; + + if (replace_string == NULL || replace_string[0] == '\0') { + return orig_name; + } + + replace_string_len = strlen(replace_string); + /* faster implementations without multiple allocations */ + if (replace_string_len == 1) { + char *p; + new_name = talloc_strdup(mem_ctx, orig_name); + if (new_name == NULL) { + return NULL; + } + + for (p = new_name; *p != '\0'; ++p) { + if (*p == replace_string[0] ) { + *p = ' '; + } + } + + return new_name; + } + + tmp_ctx = talloc_new(NULL); + if (tmp_ctx == NULL) { + return NULL; + } + + new_name = talloc_strdup(tmp_ctx, ""); + if (new_name == NULL) { + goto done; + } + + do { + substr = strstr(ptr, replace_string); + if (substr != NULL) { + new_name = talloc_asprintf_append(new_name, "%.*s ", + (int)(substr - ptr), ptr); + if (new_name == NULL) { + goto done; + } + ptr += substr - ptr; + ptr += replace_string_len; + } else { + new_name = talloc_asprintf_append(new_name, "%s", ptr); + if (new_name == NULL) { + goto done; + } + } + } while (substr != NULL); + + new_name = talloc_steal(mem_ctx, new_name); +done: + talloc_free(tmp_ctx); + return new_name; +} diff --git a/src/util/util.h b/src/util/util.h index cc1a38283..35a8814e5 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -567,4 +567,12 @@ errno_t well_known_sid_to_name(const char *sid, const char **dom, errno_t name_to_well_known_sid(const char *dom, const char *name, const char **sid); +/* from string_utils.c */ +const char * sss_replace_whitespaces(TALLOC_CTX *mem_ctx, + const char *orig_name, + const char *replace_string); +char * sss_reverse_replace_whitespaces(TALLOC_CTX *mem_ctx, + char *orig_name, + const char *replace_string); + #endif /* __SSSD_UTIL_H__ */ |