/* Fill in entire value of argument. */
int fill_arg(char *const dest, const char *argv)
{
char env_name[MAX_ENVNAME + 1];
char *buf = dest;
char *p = NULL;
for (; *argv; argv++) {
if (isalnum(*argv) || *argv == '_') {
if (p)
*p++ = *argv;
else
*buf++ = *argv;
}
else { /* Symbols. */
if (p) {
*p = '\0';
p = find_envvar(env_name);
if (p) {
strcpy(buf, p);
buf += strlen(p);
p = NULL;
}
}
if (*argv == '$')
p = env_name;
else
*buf++ = *argv;
}
}
if (p) {
*p = '\0';
p = find_envvar(env_name);
if (p) {
strcpy(buf, p);
buf += strlen(p);
}
}
*buf = '\0';
return buf - dest;
}
//export
void export_envvar(int argc, char *argv[])
{
char *found;
char *value;
int i;
for (i = 1; i < argc; i++) {
value = argv[i];
while (*value && *value != '=')
value++;
if (*value)
*value++ = '\0';
found = find_envvar(argv[i]);
if (found)
strcpy(found, value);
else if (env_count < MAX_ENVCOUNT) {
strcpy(env_var[env_count].name, argv[i]);
strcpy(env_var[env_count].value, value);
env_count++;
}
}
}
static char *
do_replace_envvar (char *path)
{
char *data = path, *tmp;
char *home = getenv ("HOME");
int pos = 0, len, home_len = 0;
if (path == NULL)
return NULL;
if (*path == '\0')
return path;
len = strlen (path);
if (home)
home_len = strlen (home);
while (*(data + pos))
{
char *var;
int var_len, end_pos;
while (*(data + pos) != '$' && *(data + pos))
{
if (*(data + pos) == '~' && *(data + pos + 1) == '/')
{
if (pos > 0)
if (*(data + pos - 1) != ':')
{
pos += 2;
continue;
}
if (home == NULL)
*(data + (pos++)) = '.';
else
{
len += home_len;
tmp = safecalloc (1, len);
strncpy (tmp, data, pos);
strcpy (tmp + pos, home);
strcpy (tmp + pos + home_len, data + pos + 1);
if( data != path )
free (data);
data = tmp;
pos += home_len;
}
}
pos++;
}
if (*(data + pos) == '\0')
break;
/* found $ sign - trying to replace var */
if ((var = find_envvar (data + pos + 1, &end_pos)) == NULL)
{
++pos;
continue;
}
var_len = strlen (var);
len += var_len;
tmp = safecalloc (1, len);
strncpy (tmp, data, pos);
strcpy (tmp + pos, var);
strcpy (tmp + pos + var_len, data + pos + end_pos + 1);
if( data != path )
free (data);
data = tmp;
}
return data;
}
