--- /dev/null
+#include "get_file_lines.h"
+#include <talloc/talloc.h>
+#include <string/string.h>
+#include <noerr/noerr.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <err.h>
+#include <dirent.h>
+
+static void *grab_fd(const void *ctx, int fd)
+{
+ int ret;
+ unsigned int max = 16384, size = 0;
+ char *buffer;
+
+ buffer = talloc_array(ctx, char, max+1);
+ while ((ret = read(fd, buffer + size, max - size)) > 0) {
+ size += ret;
+ if (size == max)
+ buffer = talloc_realloc(ctx, buffer, char, max*=2 + 1);
+ }
+ if (ret < 0) {
+ talloc_free(buffer);
+ buffer = NULL;
+ } else
+ buffer[size] = '\0';
+
+ return buffer;
+}
+
+/* This version adds one byte (for nul term) */
+static void *grab_file(const void *ctx, const char *filename)
+{
+ int fd;
+ char *buffer;
+
+ if (streq(filename, "-"))
+ fd = dup(STDIN_FILENO);
+ else
+ fd = open(filename, O_RDONLY, 0);
+
+ if (fd < 0)
+ return NULL;
+
+ buffer = grab_fd(ctx, fd);
+ close_noerr(fd);
+ return buffer;
+}
+
+/* This is a dumb one which copies. We could mangle instead. */
+static char **split(const void *ctx, const char *text, const char *delims,
+ unsigned int *nump)
+{
+ char **lines = NULL;
+ unsigned int max = 64, num = 0;
+
+ lines = talloc_array(ctx, char *, max+1);
+
+ while (*text != '\0') {
+ unsigned int len = strcspn(text, delims);
+ lines[num] = talloc_array(lines, char, len + 1);
+ memcpy(lines[num], text, len);
+ lines[num][len] = '\0';
+ text += len;
+ text += strspn(text, delims);
+ if (++num == max)
+ lines = talloc_realloc(ctx, lines, char *, max*=2 + 1);
+ }
+ lines[num] = NULL;
+ if (nump)
+ *nump = num;
+ return lines;
+}
+
+char **get_file_lines(void *ctx, const char *name, unsigned int *num_lines)
+{
+ char *buffer = grab_file(ctx, name);
+
+ if (!buffer)
+ err(1, "Getting file %s", name);
+
+ return split(buffer, buffer, "\n", num_lines);
+}