static
void
expand(const char *as)
{
const char *cs;
const char *oldcs;
char *sgpathp;
struct stat stb;
sgpathp = gpathp;
cs = as;
if (*cs == '~' && gpathp == gpath) {
addpath('~');
for (cs++; letter(*cs) || digit(*cs) || *cs == '-';)
addpath(*cs++);
if (!*cs || *cs == '/') {
if (gpathp != gpath + 1) {
*gpathp = 0;
if (gethdir(gpath + 1))
globerr = "Unknown user name after ~";
/*
* Was: strcpy(gpath, gpath + 1);
* but that's WRONG
*/
memmove(gpath, gpath+1, strlen(gpath+1)+1);
}
else {
(void) strcpy(gpath, home);
}
gpathp = strend(gpath);
}
}
while (!any(*cs, globchars)) {
if (*cs == 0) {
if (!globbed)
Gcat(gpath, "");
else if (stat(gpath, &stb) >= 0) {
Gcat(gpath, "");
globcnt++;
}
goto endit;
}
addpath(*cs++);
}
oldcs = cs;
while (cs > as && *cs != '/')
cs--, gpathp--;
if (*cs == '/')
cs++, gpathp++;
*gpathp = 0;
if (*oldcs == '{') {
(void) execbrc(cs, ((char *)0));
return;
}
matchdir(cs);
endit:
gpathp = sgpathp;
*gpathp = 0;
}
static void
expand(char *as)
{
char *cs;
char *sgpathp, *oldcs;
struct stat stb;
sgpathp = gpathp;
cs = as;
if (*cs == '~' && gpathp == gpath) {
addpath('~');
for (cs++; letter(*cs) || digit(*cs) || *cs == '-';)
addpath(*cs++);
if (!*cs || *cs == '/') {
if (gpathp != gpath + 1) {
*gpathp = 0;
if (gethdir(gpath + 1)) {
(void)sprintf(errstring = errbuf,
"Unknown user name: %s after '~'",
gpath+1);
globerr = IPS;
}
strcpy(gpath, gpath + 1);
} else
strcpy(gpath, home);
gpathp = strend(gpath);
}
}
while (!any(*cs, globchars) && globerr == 0) {
if (*cs == 0) {
if (!globbed)
Gcat(gpath, "");
else if (stat(gpath, &stb) >= 0) {
Gcat(gpath, "");
globcnt++;
}
goto endit;
}
addpath(*cs++);
}
oldcs = cs;
while (cs > as && *cs != '/')
cs--, gpathp--;
if (*cs == '/')
cs++, gpathp++;
*gpathp = 0;
if (*oldcs == '{') {
(void)execbrc(cs, ((char *)0));
return;
}
matchdir(cs);
endit:
gpathp = sgpathp;
*gpathp = 0;
}
/*
* If there are any Shell meta characters in the name,
* expand into a list, after searching directory
*/
static void
expsh(char *s)
{
char *cp;
char *spathp, *oldcp;
struct stat stb;
spathp = pathp;
cp = s;
while (!any(*cp, shchars)) {
if (*cp == '\0') {
if (!expany || stat(path, &stb) >= 0) {
if (which & E_TILDE)
Cat(path, "");
else
Cat(tilde, tpathp);
}
goto endit;
}
addpath(*cp++);
}
oldcp = cp;
while (cp > s && *cp != '/')
cp--, pathp--;
if (*cp == '/')
cp++, pathp++;
*pathp = '\0';
if (*oldcp == '{') {
execbrc(cp, NULL);
return;
}
matchdir(cp);
endit:
pathp = spathp;
*pathp = '\0';
}
static int amatch(char *s, char *p)
{
register int scc;
int ok, lc;
char *sgpathp;
struct stat stb;
int c, cc;
globbed = 1;
for (;;) {
scc = *s++ & TRIM;
switch (c = *p++) {
case '{':
return (execbrc(p - 1, s - 1));
case '[':
ok = 0;
lc = 077777;
while ((cc = *p++)) {
if (cc == ']') {
if (ok)
break;
return (0);
}
if (cc == '-') {
if (lc <= scc && scc <= *p++)
ok++;
}
else if (scc == (lc = cc))
ok++;
}
if (cc == 0) {
globerr = "Missing ]";
return (0);
}
continue;
case '*':
if (!*p)
return (1);
if (*p == '/') {
p++;
goto slash;
}
s--;
do {
if (amatch(s, p))
return (1);
} while (*s++);
return (0);
case 0:
return (scc == 0);
default:
if (c != scc)
return (0);
continue;
case '?':
if (scc == 0)
return (0);
continue;
case '/':
if (scc)
return (0);
slash:
s = entp;
sgpathp = gpathp;
while (*s)
addpath(*s++);
addpath('/');
if (stat(gpath, &stb) == 0 && isdir(stb))
if (*p == 0) {
Gcat(gpath, "");
globcnt++;
}
else
expand(p);
gpathp = sgpathp;
*gpathp = 0;
return (0);
}
}
}
static int
amatch(char *s, char *p)
{
int scc;
int ok, lc, c, cc;
char *spathp;
struct stat stb;
expany = 1;
for (;;) {
scc = *s++ & TRIM;
switch (c = *p++) {
case '{':
return (execbrc(p - 1, s - 1));
case '[':
ok = 0;
lc = 077777;
while ((cc = *p++)) {
if (cc == ']') {
if (ok)
break;
return (0);
}
if (cc == '-') {
if (lc <= scc && scc <= *p++)
ok++;
} else
if (scc == (lc = cc))
ok++;
}
if (cc == 0) {
yyerror("Missing ']'");
return (0);
}
continue;
case '*':
if (!*p)
return (1);
if (*p == '/') {
p++;
goto slash;
}
for (s--; *s; s++)
if (amatch(s, p))
return (1);
return (0);
case '\0':
return (scc == '\0');
default:
if ((c & TRIM) != scc)
return (0);
continue;
case '?':
if (scc == '\0')
return (0);
continue;
case '/':
if (scc)
return (0);
slash:
s = entp;
spathp = pathp;
while (*s)
addpath(*s++);
addpath('/');
if (stat(path, &stb) == 0 && ISDIR(stb.st_mode)) {
if (*p == '\0') {
if (which & E_TILDE)
Cat(path, "");
else
Cat(tilde, tpathp);
} else
expsh(p);
}
pathp = spathp;
*pathp = '\0';
return (0);
}
}
}
