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Path validation improvments. Now works with VC7 too.

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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@2175 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
kichik 2003-02-18 19:58:16 +00:00
parent 7c3e42fa49
commit 3513e46793
1 changed files with 18 additions and 12 deletions
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30
Source/exehead/util.c
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@ -518,21 +518,27 @@ char * NSISCALL process_string(const char *in)
char * NSISCALL validate_filename(char *in) {
char *nono = "*?|<>/\":";
char *cur_char = " ";
char *out = in;
char *out_save = out;
int i = 0;
while (*cur_char = *in++) {
if (!mystrstr(nono, cur_char) ||
(i == 1 && *(WORD*)out == CHAR2_TO_WORD(':','\\')) ||
(i == 2 && *cur_char == '?' && *(DWORD*)in == CHAR4_TO_DWORD('\\','\\','?','\\'))
)
*out++ = *cur_char;
i++;
short cur_char = 0;
char *out;
char *out_save;
if (in[0] && in[1] && in[2]) {
// at least four bytes
if (*(DWORD*)in == CHAR4_TO_DWORD('\\', '\\', '?', '\\')) in += 4;
}
if (*in) {
// at least two bytes
if (in[0] && validpathspec(in)) in += 2;
}
out = in;
out_save = out;
while (*(char*)&cur_char = *in++) {
if (!mystrstr(nono, (char*)&cur_char))
*out++ = *(char*)&cur_char;
}
do {
*out = 0;
} while (i && (*(--out) == ' ' || *out == '\\'));
--out;
} while (out_save <= out && (*out == ' ' || *out == '\\'));
return out_save;
}