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author | Andrew Bartlett <abartlet@samba.org> | 2011-06-24 16:26:23 +1000 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2011-06-24 16:26:23 +1000 |
commit | 6da26870e0ae5acd6ff49a30ec2f6886b44d095e (patch) | |
tree | 850c71039563c16a5d563c47e7ba2ab645baf198 /source3/lib/substitute_generic.c | |
parent | 6925a799d04c6fa59dd2ddef1f5510f9bb7d17d1 (diff) | |
parent | 2610c05b5b95cc7036b3d6dfb894c6cfbdb68483 (diff) | |
download | samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.tar.gz samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.tar.bz2 samba-6da26870e0ae5acd6ff49a30ec2f6886b44d095e.zip |
Merge 2610c05b5b95cc7036b3d6dfb894c6cfbdb68483 as Samba-4.0alpha16
Diffstat (limited to 'source3/lib/substitute_generic.c')
-rw-r--r-- | source3/lib/substitute_generic.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/source3/lib/substitute_generic.c b/source3/lib/substitute_generic.c new file mode 100644 index 0000000000..fa347fb815 --- /dev/null +++ b/source3/lib/substitute_generic.c @@ -0,0 +1,116 @@ +/* + Unix SMB/CIFS implementation. + Samba utility functions + + Copyright (C) Andrew Tridgell 1992-2001 + Copyright (C) Simo Sorce 2001-2002 + Copyright (C) Martin Pool 2003 + Copyright (C) James Peach 2006 + Copyright (C) Jeremy Allison 1992-2007 + + 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" + +void fstring_sub(char *s,const char *pattern,const char *insert) +{ + string_sub(s, pattern, insert, sizeof(fstring)); +} + +/** + Similar to string_sub2, but it will accept only allocated strings + and may realloc them so pay attention at what you pass on no + pointers inside strings, no const may be passed + as string. +**/ + +char *realloc_string_sub2(char *string, + const char *pattern, + const char *insert, + bool remove_unsafe_characters, + bool allow_trailing_dollar) +{ + char *p, *in; + char *s; + ssize_t ls,lp,li,ld, i; + + if (!insert || !pattern || !*pattern || !string || !*string) + return NULL; + + s = string; + + in = SMB_STRDUP(insert); + if (!in) { + DEBUG(0, ("realloc_string_sub: out of memory!\n")); + return NULL; + } + ls = (ssize_t)strlen(s); + lp = (ssize_t)strlen(pattern); + li = (ssize_t)strlen(insert); + ld = li - lp; + for (i=0;i<li;i++) { + switch (in[i]) { + case '$': + /* allow a trailing $ + * (as in machine accounts) */ + if (allow_trailing_dollar && (i == li - 1 )) { + break; + } + case '`': + case '"': + case '\'': + case ';': + case '%': + case '\r': + case '\n': + if ( remove_unsafe_characters ) { + in[i] = '_'; + break; + } + default: + /* ok */ + break; + } + } + + while ((p = strstr_m(s,pattern))) { + if (ld > 0) { + int offset = PTR_DIFF(s,string); + string = (char *)SMB_REALLOC(string, ls + ld + 1); + if (!string) { + DEBUG(0, ("realloc_string_sub: " + "out of memory!\n")); + SAFE_FREE(in); + return NULL; + } + p = string + offset + (p - s); + } + if (li != lp) { + memmove(p+li,p+lp,strlen(p+lp)+1); + } + memcpy(p, in, li); + s = p + li; + ls += ld; + } + SAFE_FREE(in); + return string; +} + +char *realloc_string_sub(char *string, + const char *pattern, + const char *insert) +{ + return realloc_string_sub2(string, pattern, insert, true, false); +} |