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[disorder] / lib / inputline.c

diff --git a/lib/inputline.c b/lib/inputline.c
index 416162cf324a3160827093ac651fd7399d3db95c..855910f2a8f11e7afd74b18349feaae06d6493e6 100644 (file)
--- a/lib/inputline.c
+++ b/lib/inputline.c
@@ -17,6 +17,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  * USA
  */
+/** @file lib/inputline.c
+ * @brief Line input
+ */
 
 #include <config.h>
 #include "types.h"
@@ -31,14 +34,36 @@
 #include "charset.h"
 #include "inputline.h"
 
+/** @brief Read a line from @p fp
+ * @param tag Used in error messages
+ * @param fp Stream to read from
+ * @param lp Where to store newly allocated string
+ * @param newline Newline character or @ref CRLF
+ * @return 0 on success, -1 on error or eof.
+ *
+ * The newline is not included in the string.  If the last line of a
+ * stream does not have a newline then that line is still returned.
+ *
+ * If @p newline is @ref CRLF then the line is terminated by CR LF,
+ * not by a single newline character.  The CRLF is still not included
+ * in the string in this case.
+ *
+ * @p *lp is only set if the return value was 0.
+ */
 int inputline(const char *tag, FILE *fp, char **lp, int newline) {
   struct dynstr d;
   int ch;
 
   dynstr_init(&d);
   while((ch = getc(fp)),
-       (!ferror(fp) && !feof(fp) && ch != newline))
+       (!ferror(fp) && !feof(fp) && ch != newline)) {
     dynstr_append(&d, ch);
+    if(newline == CRLF && d.nvec >= 2
+       && d.vec[d.nvec - 2] == 0x0D && d.vec[d.nvec - 1] == 0x0A) {
+      d.nvec -= 2;
+      break;
+    }
+  }
   if(ferror(fp)) {
     error(errno, "error reading %s", tag);
     return -1;