| /* |
| Copyright (C) 2007 Arnaldo Carvalho de Melo <acme@redhat.com> |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms of version 2 of the GNU General Public License as |
| published by the Free Software Foundation. |
| */ |
| |
| |
| #include "dutil.h" |
| |
| #include <ctype.h> |
| #include <search.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| static int str_compare(const void *a, const void *b) |
| { |
| return strcmp(a, b); |
| } |
| |
| int strlist__add(struct strlist *self, const char *str) |
| { |
| const char **s = tsearch(str, &self->entries, str_compare); |
| |
| if (s != NULL) { |
| if (*s == str) { |
| const char *dup = self->dupstr ? strdup(str) : str; |
| |
| if (dup != NULL) |
| *s = dup; |
| else { |
| tdelete(str, &self->entries, str_compare); |
| return -1; |
| } |
| } else |
| return -1; |
| } else |
| return -1; |
| |
| return 0; |
| } |
| |
| int strlist__load(struct strlist *self, const char *filename) |
| { |
| char entry[1024]; |
| int err = -1; |
| FILE *fp = fopen(filename, "r"); |
| |
| if (fp == NULL) |
| return -1; |
| |
| while (fgets(entry, sizeof(entry), fp) != NULL) { |
| const size_t len = strlen(entry); |
| |
| if (len == 0) |
| continue; |
| entry[len - 1] = '\0'; |
| |
| if (strlist__add(self, entry) != 0) |
| goto out; |
| } |
| |
| err = 0; |
| out: |
| fclose(fp); |
| return err; |
| } |
| |
| struct strlist *strlist__new(bool dupstr) |
| { |
| struct strlist *self = malloc(sizeof(*self)); |
| |
| if (self != NULL) { |
| self->entries = NULL; |
| self->dupstr = dupstr; |
| } |
| |
| return self; |
| } |
| |
| static void do_nothing(void *ptr __unused) |
| { |
| } |
| |
| void strlist__delete(struct strlist *self) |
| { |
| if (self != NULL) { |
| if (self->dupstr) |
| tdestroy(self->entries, free); |
| else |
| tdestroy(self->entries, do_nothing); |
| self->entries = NULL; |
| free(self); |
| } |
| } |
| |
| int strlist__has_entry(const struct strlist *self, const char *entry) |
| { |
| return tfind(entry, &self->entries, str_compare) != NULL; |
| } |