X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=quote.c;h=dc5c0a7715e4782024ede6dd90b150f6e71022ee;hb=fe142b3a4577a6692a39e2386ed649664ad8bd20;hp=dcc23266109ce30e3fd098f3c76799b67b75a332;hpb=02ca920481dbc3740087986b15b89cf6433cf58e;p=git.git

diff --git a/quote.c b/quote.c
index dcc232661..dc5c0a771 100644
--- a/quote.c
+++ b/quote.c
@@ -13,7 +13,7 @@
  *  a!b      ==> a'\!'b    ==> 'a'\!'b'
  */
 #undef EMIT
-#define EMIT(x) ( (++len < n) && (*bp++ = (x)) )
+#define EMIT(x) do { if (++len < n) *bp++ = (x); } while(0)
 
 static inline int need_bs_quote(char c)
 {
@@ -45,6 +45,23 @@ size_t sq_quote_buf(char *dst, size_t n, const char *src)
 	return len;
 }
 
+void sq_quote_print(FILE *stream, const char *src)
+{
+	char c;
+
+	fputc('\'', stream);
+	while ((c = *src++)) {
+		if (need_bs_quote(c)) {
+			fputs("'\\", stream);
+			fputc(c, stream);
+			fputc('\'', stream);
+		} else {
+			fputc(c, stream);
+		}
+	}
+	fputc('\'', stream);
+}
+
 char *sq_quote(const char *src)
 {
 	char *buf;
@@ -57,6 +74,67 @@ char *sq_quote(const char *src)
 	return buf;
 }
 
+char *sq_quote_argv(const char** argv, int count)
+{
+	char *buf, *to;
+	int i;
+	size_t len = 0;
+
+	/* Count argv if needed. */
+	if (count < 0) {
+		for (count = 0; argv[count]; count++)
+			; /* just counting */
+	}
+
+	/* Special case: no argv. */
+	if (!count)
+		return xcalloc(1,1);
+
+	/* Get destination buffer length. */
+	for (i = 0; i < count; i++)
+		len += sq_quote_buf(NULL, 0, argv[i]) + 1;
+
+	/* Alloc destination buffer. */
+	to = buf = xmalloc(len + 1);
+
+	/* Copy into destination buffer. */
+	for (i = 0; i < count; ++i) {
+		*to++ = ' ';
+		to += sq_quote_buf(to, len, argv[i]);
+	}
+
+	return buf;
+}
+
+/*
+ * Append a string to a string buffer, with or without shell quoting.
+ * Return true if the buffer overflowed.
+ */
+int add_to_string(char **ptrp, int *sizep, const char *str, int quote)
+{
+	char *p = *ptrp;
+	int size = *sizep;
+	int oc;
+	int err = 0;
+
+	if (quote)
+		oc = sq_quote_buf(p, size, str);
+	else {
+		oc = strlen(str);
+		memcpy(p, str, (size <= oc) ? size - 1 : oc);
+	}
+
+	if (size <= oc) {
+		err = 1;
+		oc = size - 1;
+	}
+
+	*ptrp += oc;
+	**ptrp = '\0';
+	*sizep -= oc;
+	return err;
+}
+
 char *sq_dequote(char *arg)
 {
 	char *dst = arg;
@@ -131,7 +209,7 @@ static int quote_c_style_counted(const char *name, int namelen,
 		if (!ch)
 			break;
 		if ((ch < ' ') || (ch == '"') || (ch == '\\') ||
-		    (ch == 0177)) {
+		    (ch >= 0177)) {
 			needquote = 1;
 			switch (ch) {
 			case '\a': EMITQ(); ch = 'a'; break;