11 #include "pthread_impl.h"
13 static char *getword(FILE *f)
16 return getdelim(&s, (size_t [1]){0}, 0, f) < 0 ? 0 : s;
19 static int do_wordexp(const char *s, wordexp_t *we, int flags)
25 char *redir = (flags & WRDE_SHOWERR) ? "" : "2>/dev/null";
34 if (flags & WRDE_REUSE) wordfree(we);
36 if (flags & WRDE_NOCMD) for (i=0; s[i]; i++) switch (s[i]) {
64 if (!(sq|dq|np)) return WRDE_BADCHAR;
67 if (s[i+1]=='(' && s[i+2]=='(') {
71 } else if (s[i+1] != '(') break;
77 if (flags & WRDE_APPEND) {
83 if (flags & WRDE_DOOFFS) {
84 if (we->we_offs > SIZE_MAX/sizeof(void *)/4)
91 if (pipe(p) < 0) goto nospace;
92 __block_all_sigs(&set);
104 execl("/bin/sh", "sh", "-c",
105 "eval \"printf %s\\\\\\\\0 x $1 $2\"",
106 "sh", s, redir, (char *)0);
111 f = fdopen(p[0], "r");
115 waitpid(pid, &status, 0);
124 while ((waitpid(pid, &status, 0) < 0 && errno == EINTR)
125 || !WIFEXITED(status));
129 while ((w = getword(f))) {
132 tmp = realloc(wv, l*sizeof(char *));
139 if (!feof(f)) err = WRDE_NOSPACE;
142 while ((waitpid(pid, &status, 0) < 0 && errno == EINTR)
143 || !WIFEXITED(status));
145 if (!wv) wv = calloc(i+1, sizeof *wv);
150 if (flags & WRDE_DOOFFS) {
151 if (wv) for (i=we->we_offs; i; i--)
152 we->we_wordv[i-1] = 0;
153 we->we_wordc -= we->we_offs;
158 if (!(flags & WRDE_APPEND)) {
165 int wordexp(const char *restrict s, wordexp_t *restrict we, int flags)
168 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
169 r = do_wordexp(s, we, flags);
170 pthread_setcancelstate(cs, 0);
174 void wordfree(wordexp_t *we)
177 if (!we->we_wordv) return;
178 for (i=0; i<we->we_wordc; i++) free(we->we_wordv[we->we_offs+i]);