18 static int is_literal(const char *p, int useesc)
32 if (bracket) return 0;
39 static int append(struct match **tail, const char *name, size_t len, int mark)
41 struct match *new = malloc(sizeof(struct match) + len + 1);
45 strcpy(new->name, name);
46 if (mark) strcat(new->name, "/");
51 static int match_in_dir(const char *d, const char *p, int flags, int (*errfunc)(const char *path, int err), struct match **tail)
54 struct dirent de_buf, *de;
55 char pat[strlen(p)+1];
59 int fnm_flags= ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
60 | ((!(flags & GLOB_PERIOD)) ? FNM_PERIOD : 0);
63 if ((p2 = strchr(p, '/'))) {
66 for (; *p2 == '/'; p2++);
69 literal = is_literal(p, !(flags & GLOB_NOESCAPE));
70 if (*d == '/' && !*(d+1)) l = 0;
72 /* rely on opendir failing for nondirectory objects */
73 dir = opendir(*d ? d : ".");
76 /* this is not an error -- we let opendir call stat for us */
77 if (error == ENOTDIR) return 0;
78 if (error == EACCES && !*p) {
80 if (!stat(d, &st) && S_ISDIR(st.st_mode)) {
81 if (append(tail, d, l, l))
86 if (errfunc(d, error) || (flags & GLOB_ERR))
91 error = append(tail, d, l, l) ? GLOB_NOSPACE : 0;
95 while (!(error = readdir_r(dir, &de_buf, &de)) && de) {
96 char namebuf[l+de->d_reclen+2], *name = namebuf;
97 if (!literal && fnmatch(p, de->d_name, fnm_flags))
99 if (literal && strcmp(p, de->d_name))
101 if (p2 && de->d_type && !S_ISDIR(de->d_type<<12) && !S_ISLNK(de->d_type<<12))
103 /* With GLOB_PERIOD, don't allow matching . or .. unless
104 * fnmatch would match them with FNM_PERIOD rules in effect. */
105 if (p2 && (flags & GLOB_PERIOD) && de->d_name[0]=='.'
106 && (!de->d_name[1] || de->d_name[1]=='.' && !de->d_name[2])
107 && fnmatch(p, de->d_name, fnm_flags | FNM_PERIOD))
112 strcpy(name+l+1, de->d_name);
117 if ((error = match_in_dir(name, p2, flags, errfunc, tail))) {
123 if (flags & GLOB_MARK) {
124 if (de->d_type && !S_ISLNK(de->d_type<<12))
125 mark = S_ISDIR(de->d_type<<12);
129 mark = S_ISDIR(st.st_mode);
132 if (append(tail, name, l+de->d_reclen+1, mark)) {
139 if (error && (errfunc(d, error) || (flags & GLOB_ERR)))
144 static int ignore_err(const char *path, int err)
149 static void freelist(struct match *head)
151 struct match *match, *next;
152 for (match=head->next; match; match=next) {
158 static int sort(const void *a, const void *b)
160 return strcmp(*(const char **)a, *(const char **)b);
163 int glob(const char *restrict pat, int flags, int (*errfunc)(const char *path, int err), glob_t *restrict g)
165 const char *p=pat, *d;
166 struct match head = { .next = NULL }, *tail = &head;
168 size_t offs = (flags & GLOB_DOOFFS) ? g->gl_offs : 0;
172 for (; *p == '/'; p++);
178 if (!errfunc) errfunc = ignore_err;
180 if (!(flags & GLOB_APPEND)) {
186 if (strnlen(p, PATH_MAX+1) > PATH_MAX) return GLOB_NOSPACE;
188 if (*pat) error = match_in_dir(d, p, flags, errfunc, &tail);
189 if (error == GLOB_NOSPACE) {
194 for (cnt=0, tail=head.next; tail; tail=tail->next, cnt++);
196 if (flags & GLOB_NOCHECK) {
198 if (append(&tail, pat, strlen(pat), 0))
205 if (flags & GLOB_APPEND) {
206 char **pathv = realloc(g->gl_pathv, (offs + g->gl_pathc + cnt + 1) * sizeof(char *));
214 g->gl_pathv = malloc((offs + cnt + 1) * sizeof(char *));
219 for (i=0; i<offs; i++)
220 g->gl_pathv[i] = NULL;
222 for (i=0, tail=head.next; i<cnt; tail=tail->next, i++)
223 g->gl_pathv[offs + i] = tail->name;
224 g->gl_pathv[offs + i] = NULL;
227 if (!(flags & GLOB_NOSORT))
228 qsort(g->gl_pathv+offs, cnt, sizeof(char *), sort);
233 void globfree(glob_t *g)
236 for (i=0; i<g->gl_pathc; i++)
237 free(g->gl_pathv[g->gl_offs + i] - offsetof(struct match, name));