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60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
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$FreeBSD$
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--- src/misc.c.orig
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+++ src/misc.c
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@@ -223,6 +223,53 @@
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return (pnew - str);
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}
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+spif_charptr_t
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+escape_string(spif_charptr_t str, spif_char_t quote, spif_int32_t maxlen)
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+{
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+ spif_charptr_t buff, s = str, pbuff;
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+
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+ D_STRINGS(("escape_string(%s %c %ld)\n", (char *) str, quote, maxlen));
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+ if (! quote) {
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+ quote = '\"';
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+ }
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+
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+ /* The escaped string will be at most twice the length of the original. */
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+ buff = SPIF_CAST(charptr) MALLOC(strlen(SPIF_CAST_PTR(char) str) * 2 + 1);
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+
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+ /* Copy and escape the string from str into buff. */
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+ for (pbuff = buff; (*s); s++, pbuff++) {
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+ if (*s == quote) {
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+ D_STRINGS(("Double-escaping \'%c\' at position %d\n", *s, s - str));
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+ *pbuff = '\\';
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+ pbuff++;
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+ *pbuff = '\\';
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+ pbuff++;
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+ } else {
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+ if (quote == '\"') {
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+ if ((*s == '\\') || (*s == '`')) {
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+ D_STRINGS(("Escaping \'%c\' at position %d\n", *s, s - str));
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+ *pbuff = '\\';
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+ pbuff++;
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+ }
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+ }
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+ }
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+ D_STRINGS(("Copying \'%c\' at position %d\n", *s, s - str));
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+ *pbuff = *s;
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+ }
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+ *pbuff = 0;
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+
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+ if (maxlen) {
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+ /* Given maxlen, we know "str" can hold at least "maxlen" chars. */
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+ if (!spiftool_safe_strncpy(str, buff, maxlen)) {
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+ str[maxlen] = 0;
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+ }
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+ FREE(buff);
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+ return str;
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+ } else {
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+ return buff;
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+ }
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+}
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+
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char *
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safe_print_string(const char *str, unsigned long len)
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{
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