diff options
Diffstat (limited to 'common/strsep.c')
-rw-r--r-- | common/strsep.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/common/strsep.c b/common/strsep.c new file mode 100644 index 000000000..af3f02e07 --- /dev/null +++ b/common/strsep.c @@ -0,0 +1,73 @@ +/* strsep.c - Replacement for strsep(). + * Copyright (C) 2002 Free Software Foundation, Inc. + * + * This file is part of GnuPG. + * + * GnuPG 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 2 of the License, or + * (at your option) any later version. + * + * GnuPG 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, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <string.h> + +/* Code taken from glibc-2.2.1/sysdeps/generic/strsep.c */ +#warning need to get the correct copyright years from glibc +char * +strsep (char **stringp, const char *delim) +{ + char *begin, *end; + + begin = *stringp; + if (begin == NULL) + return NULL; + + /* A frequent case is when the delimiter string contains only one + character. Here we don't need to call the expensive `strpbrk' + function and instead work using `strchr'. */ + if (delim[0] == '\0' || delim[1] == '\0') + { + char ch = delim[0]; + + if (ch == '\0') + end = NULL; + else + { + if (*begin == ch) + end = begin; + else if (*begin == '\0') + end = NULL; + else + end = strchr (begin + 1, ch); + } + } + else + /* Find the end of the token. */ + end = strpbrk (begin, delim); + + if (end) + { + /* Terminate the token and set *STRINGP past NUL character. */ + *end++ = '\0'; + *stringp = end; + } + else + /* No more delimiters; this is the last token. */ + *stringp = NULL; + + return begin; +} + |