Add xgetline (which the last sh checkin used, oops).

2 files changed, 16 insertions, 0 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 9c5e9a37..25417105 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -186,6 +186,7 @@ void xsignal_flags(int signal, void *handler, int flags);
 void xsignal(int signal, void *handler);
 time_t xvali_date(struct tm *tm, char *str);
 void xparsedate(char *str, time_t *t, unsigned *nano, int endian);
+char *xgetline(FILE *fp, int *len);
 
 // lib.c
 void verror_msg(char *msg, int err, va_list va);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index be57097d..317b149f 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -1052,3 +1052,18 @@ void xparsedate(char *str, time_t *t, unsigned *nano, int endian)
   if (oldtz) setenv("TZ", oldtz, 1);
   free(oldtz);
 }
+
+char *xgetline(FILE *fp, int *len)
+{
+  char *new = 0;
+  size_t linelen = 0;
+
+  errno = 0;
+  if (1>(linelen = getline(&new, &linelen, fp))) {
+    if (errno) perror_msg("getline");
+    new = 0;
+  } else if (new[linelen-1] == '\n') new[--linelen] = 0;
+  if (len) *len = linelen;
+
+  return new;
+}