Applied patch by MauMau <maumau307@gmail.com> to escape filenames in #line statements.

diff --git a/src/interfaces/ecpg/preproc/output.c b/src/interfaces/ecpg/preproc/output.c
index 389a5272d44cce0b4dc8ec6ff16df58388783752..616e8f040086684e97746bf6b0aa71873ae835fb 100644 (file)
--- a/src/interfaces/ecpg/preproc/output.c
+++ b/src/interfaces/ecpg/preproc/output.c
@@ -95,9 +95,22 @@ hashline_number(void)
 #endif
        )
    {
-       char       *line = mm_alloc(strlen("\n#line %d \"%s\"\n") + sizeof(int) * CHAR_BIT * 10 / 3 + strlen(input_filename));
-
-       sprintf(line, "\n#line %d \"%s\"\n", yylineno, input_filename);
+       /* "* 2" here is for escaping \s below */
+       char       *line = mm_alloc(strlen("\n#line %d \"%s\"\n") + sizeof(int) * CHAR_BIT * 10 / 3 + strlen(input_filename) * 2);
+       char       *src,
+                  *dest;
+
+       sprintf(line, "\n#line %d \"", yylineno);
+       src = input_filename;
+       dest = line + strlen(line);
+       while (*src)
+       {
+           if (*src == '\\')
+               *dest++ = '\\';
+           *dest++ = *src++;
+       }
+       *dest = '\0';
+       strcat(dest, "\"\n");
 
        return line;
    }