12 static char *getword(FILE *f)
15 return getdelim(&s, (size_t [1]){0}, 0, f) < 0 ? 0 : s;
18 static int do_wordexp(const char *s, wordexp_t *we, int flags)
24 char *redir = (flags & WRDE_SHOWERR) ? "" : "2>/dev/null";
32 if (flags & WRDE_REUSE) wordfree(we);
34 if (flags & WRDE_NOCMD) for (i=0; s[i]; i++) switch (s[i]) {
62 if (!(sq|dq|np)) return WRDE_BADCHAR;
65 if (s[i+1]=='(' && s[i+2]=='(') {
69 } else if (s[i+1] != '(') break;
75 if (flags & WRDE_APPEND) {
81 if (flags & WRDE_DOOFFS) {
82 if (we->we_offs > SIZE_MAX/sizeof(void *)/4)
89 if (pipe(p) < 0) return WRDE_NOSPACE;
100 execl("/bin/sh", "sh", "-c",
101 "eval \"printf %s\\\\\\\\0 $1 $2\"",
102 "sh", s, redir, (char *)0);
107 f = fdopen(p[0], "r");
111 waitpid(pid, &status, 0);
117 while ((w = getword(f))) {
120 tmp = realloc(wv, l*sizeof(char *));
127 if (!feof(f)) err = WRDE_NOSPACE;
130 waitpid(pid, &status, 0);
131 if (WEXITSTATUS(status)) {
132 if (!(flags & WRDE_APPEND)) {
135 } else if (wv==we->we_wordv) {
143 for (i=we->we_offs; i; i--)
144 we->we_wordv[i-1] = 0;
146 if (flags & WRDE_DOOFFS) we->we_wordc -= we->we_offs;
150 int wordexp(const char *restrict s, wordexp_t *restrict we, int flags)
153 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
154 r = do_wordexp(s, we, flags);
155 pthread_setcancelstate(cs, 0);
159 void wordfree(wordexp_t *we)
162 if (!we->we_wordv) return;
163 for (i=0; i<we->we_wordc; i++) free(we->we_wordv[we->we_offs+i]);