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)
87 if (pipe(p) < 0) return WRDE_NOSPACE;
98 execl("/bin/sh", "sh", "-c",
99 "eval \"printf %s\\\\\\\\0 $1 $2\"",
100 "sh", s, redir, (char *)0);
105 f = fdopen(p[0], "r");
109 waitpid(pid, &status, 0);
115 while ((w = getword(f))) {
118 tmp = realloc(wv, l*sizeof(char *));
125 if (!feof(f)) err = WRDE_NOSPACE;
128 waitpid(pid, &status, 0);
129 if (WEXITSTATUS(status)) {
130 if (!(flags & WRDE_APPEND)) {
133 } else if (wv==we->we_wordv) {
140 if (flags & WRDE_DOOFFS) we->we_wordc -= we->we_offs;
144 int wordexp(const char *s, wordexp_t *we, int flags)
147 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
148 r = do_wordexp(s, we, flags);
149 pthread_setcancelstate(cs, 0);
153 void wordfree(wordexp_t *we)
156 if (!we->we_wordv) return;
157 for (i=0; i<we->we_wordc; i++) free(we->we_wordv[we->we_offs+i]);