test

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define PSP2LINK_MAX_PATH 1024
void win_to_unix(char *pathname)
{
        int loop0 = 0;
        for (loop0=0; loop0<strlen(pathname); loop0++) { if (pathname[loop0] == '\\') { pathname[loop0] = '/'; } }
        return;

}

int fix_pathname(char *pathname)
{
    char new_pathname[PSP2LINK_MAX_PATH];
    memset(new_pathname, 0, sizeof(new_pathname));
 
    if (strncmp(pathname, "host0:", 6) == 0)
    {
        if (pathname[6] != '/' && !strchr(pathname + 6, ':'))
        {
#if defined (__CYGWIN__) || defined (__MINGW32__)
            _getcwd(new_pathname, PSP2LINK_MAX_PATH);
#else
            getcwd(new_pathname, PSP2LINK_MAX_PATH);
            strcat(new_pathname,"/");
#endif		
        }
 
        strcat(new_pathname, pathname + 6);
 
        // Convert \ to / for unix compatibility.
        win_to_unix(new_pathname);
 
        // Remove end-slash
        int len = strlen(new_pathname);
        if (len >= 2 && new_pathname[len - 2] != ':' && new_pathname[len - 1] == '/')
            new_pathname[len - 1] = '\0';
    }
    else
    {
        printf("Path received does not include host0: %s\n", new_pathname);
    }
   
    printf("%s -> %s\n", pathname, new_pathname);
    strcpy(pathname, new_pathname);
 
    return 0;
}
int main(int argc, char **argv)
{
	 //printf("str return %s\n",strchr(argv[1] + 6, ':'));
	fix_pathname(argv[1]);	
return 0;

}

-----unix -----
$ cat sal.txt
host0:
host0:foo
host0:foo/
host0:../foo
host0:foo/bar
host0:foo/bar/
host0:c:
host0:c:/
host0:/foo/bar
host0:../foo/bar
host0:/../foo/bar
host0:/foo/bar/
host0:c:/foo/bar
host0:c:/foo/bar/

$ for i in `cat sal.txt `; do  ./a.out $i; done
host0: -> /private/tmp
host0:foo -> /private/tmp/foo
host0:foo/ -> /private/tmp/foo
host0:../foo -> /private/tmp/../foo
host0:foo/bar -> /private/tmp/foo/bar
host0:foo/bar/ -> /private/tmp/foo/bar
host0:c: -> c:
host0:c:/ -> c:/
host0:/foo/bar -> /foo/bar
host0:../foo/bar -> /private/tmp/../foo/bar
host0:/../foo/bar -> /../foo/bar
host0:/foo/bar/ -> /foo/bar
host0:c:/foo/bar -> c:/foo/bar
host0:c:/foo/bar/ -> c:/foo/bar


----windows----
host0:
host0:foo
host0:foo/
host0:../foo
host0:foo/bar
host0:foo/bar/
host0:c:
host0:c:/
host0:c:/foo/bar
host0:../foo/bar
host0:c:/../foo/bar
host0:c:/foo/bar/
host0:c:/foo/bar

$ for i in `cat sal.txt `; do a.exe $i; done
host0: -> c:/
host0:foo -> c:/foo
host0:foo/ -> c:/foo
Path received does not include host0:
host0;..\foo ->
host0:foo/bar -> c:/foo/bar
host0:foo/bar/ -> c:/foo/bar
host0:c: -> c:
host0:c:/ -> c:/
host0:c:/foo/bar -> c:/foo/bar
Path received does not include host0:
host0;..\foo\bar ->
host0:c:/../foo/bar -> c:/../foo/bar
host0:c:/foo/bar/ -> c:/foo/bar
host0:c:/foo/bar -> c:/foo/bar