6 /* Help to copy the thing properly quoted for the shell safety.
7 * any single quote is replaced with '\'', any exclamation point
8 * is replaced with '\!', and the whole thing is enclosed in a
11 * original sq_quote result
12 * name ==> name ==> 'name'
13 * a b ==> a b ==> 'a b'
14 * a'b ==> a'\''b ==> 'a'\''b'
15 * a!b ==> a'\!'b ==> 'a'\!'b'
17 static inline int need_bs_quote(char c)
19 return (c == '\'' || c == '!');
22 static int sq_quote_buf(struct strbuf *dst, const char *src)
28 to_free = strbuf_detach(dst, NULL);
30 ret = strbuf_addch(dst, '\'');
31 while (!ret && *src) {
32 size_t len = strcspn(src, "'!");
33 ret = strbuf_add(dst, src, len);
35 while (!ret && need_bs_quote(*src))
36 ret = strbuf_addf(dst, "'\\%c\'", *src++);
39 ret = strbuf_addch(dst, '\'');
45 int sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen)
49 /* Copy into destination buffer. */
50 ret = strbuf_grow(dst, 255);
51 for (i = 0; !ret && argv[i]; ++i) {
52 ret = strbuf_addch(dst, ' ');
55 ret = sq_quote_buf(dst, argv[i]);
56 if (maxlen && dst->len > maxlen)