1 files changed, 21 insertions, 0 deletions

diff --git a/shared.c b/shared.c
index 911a55a..4cb9573 100644
--- a/shared.c
+++ b/shared.c
@@ -380,16 +380,37 @@ int cgit_open_filter(struct cgit_filter *filter)
         close(filter->pipe_fh[1]);
         return 0;
 }
 
 int cgit_close_filter(struct cgit_filter *filter)
 {
         chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO),
                 "Unable to restore STDOUT");
         close(filter->old_stdout);
         if (filter->pid < 0)
                 return 0;
         waitpid(filter->pid, &filter->exitstatus, 0);
         if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus))
                 return 0;
         die("Subprocess %s exited abnormally", filter->cmd);
 }
+
+/* Read the content of the specified file into a newly allocated buffer,
+ * zeroterminate the buffer and return 0 on success, errno otherwise.
+ */
+int readfile(const char *path, char **buf, size_t *size)
+{
+        int fd;
+        struct stat st;
+
+        fd = open(path, O_RDONLY);
+        if (fd == -1)
+                return errno;
+        if (fstat(fd, &st))
+                return errno;
+        if (!S_ISREG(st.st_mode))
+                return EISDIR;
+        *buf = xmalloc(st.st_size + 1);
+        *size = read_in_full(fd, *buf, st.st_size);
+        (*buf)[*size] = '\0';
+        return (*size == st.st_size ? 0 : errno);
+}