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Add multiple ../../.. support in sftp-server for changing directories or get/put

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Before one could provide only one .. ; now it can be any numbers. cd
../../..  or get ../backup/myfile.c  --- all these formations now work.
This commit is contained in:
quamrulmina 2015-12-31 17:06:32 -06:00
parent 39c00bff7e
commit 6301972e69
1 changed files with 46 additions and 82 deletions
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98
openbsd-compat/realpath.c
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@ -203,43 +203,34 @@ realpath(const char *path, char resolved[PATH_MAX])
#else
void backslashconvert(char *str)
{
while (*str) {
if (*str == '/')
*str = '\\'; // convert forward slash to back slash
str++;
}
}
// convert back slash to forward slash
void slashconvert(char *str)
{
while (*str) {
if (*str == '\\')
*str = '/'; // convert back slash to forward slash
str++;
}
}
char *realpathWin32(const char *path, char resolved[PATH_MAX])
{
size_t path_len;
unsigned int lastSlash;
char realpath[PATH_MAX];
char * pch;
path_len = strlcpy(realpath, path+1, sizeof(realpath));
char * pchMac;
pchMac = strstr (realpath, "._");
if (pchMac != NULL)
{
pchMac[0] = '\0';
pchMac++;
pchMac++;
strcat(realpath, pchMac);
}
pch = strrchr(realpath, '/');
lastSlash = pch - realpath + 1;
if(path_len == lastSlash)
{
realpath[lastSlash-1] = '\0';
}
pch = strrchr(realpath,'.');
if(pch != NULL)
{
if (realpath[pch-realpath - 1] == '.')
{
realpath[pch - realpath - 2] = '\0';
pch = strrchr(realpath, '/');
if(pch != NULL)
realpath[pch - realpath] = '\0';
}
}
strlcpy(resolved, path + 1, sizeof(realpath));
backslashconvert(resolved);
PathCanonicalizeA(realpath, resolved);
slashconvert(realpath);
/*
* Store terminating slash in 'X:/' on Windows.
@ -252,52 +243,25 @@ char *realpathWin32(const char *path, char resolved[PATH_MAX])
}
resolved[0] = *path; // will be our first slash in /x:/users/test1 format
strncpy (resolved+1, realpath, sizeof(realpath));
strncpy(resolved + 1, realpath, sizeof(realpath));
return resolved;
}
// like realpathWin32() but takes out the first slash so that windows systems can work on the actual file or directory
char *realpathWin32i(const char *path, char resolved[PATH_MAX])
{
size_t path_len;
unsigned int lastSlash;
char realpath[PATH_MAX];
char * pch;
if (path[0] != '/') {
// absolute form x:/abc/def given, no first slash to take out
path_len = strlcpy(realpath, path, sizeof(realpath));
strlcpy(resolved, path, sizeof(realpath));
}
else
path_len = strlcpy(realpath, path + 1, sizeof(realpath));
strlcpy(resolved, path + 1, sizeof(realpath));
char * pchMac;
pchMac = strstr(realpath, "._");
if (pchMac != NULL)
{
pchMac[0] = '\0';
pchMac++;
pchMac++;
strcat(realpath, pchMac);
}
pch = strrchr(realpath, '/');
lastSlash = pch - realpath + 1;
if (path_len == lastSlash)
{
realpath[lastSlash - 1] = '\0';
}
pch = strrchr(realpath, '.');
if (pch != NULL)
{
if (realpath[pch - realpath - 1] == '.')
{
realpath[pch - realpath - 2] = '\0';
pch = strrchr(realpath, '/');
if (pch != NULL)
realpath[pch - realpath] = '\0';
}
}
backslashconvert(resolved);
PathCanonicalizeA(realpath, resolved);
slashconvert(realpath);
/*
* Store terminating slash in 'X:/' on Windows.