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From aab6aeb2529a1e9b51eeadf91decd06e03af5da1 Mon Sep 17 00:00:00 2001
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From: Jan Synacek <jsynacek@redhat.com>
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Date: Thu, 23 Nov 2017 09:23:34 +0100
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Subject: [PATCH] fileio: rework read_one_line_file() on top of read_line()
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(cherry picked from commit f4b51a2d092685c9a080e84130fec2d74c834f5c)
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Resolves: #1503106
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---
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 src/shared/fileio.c | 18 ++----------------
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 1 file changed, 2 insertions(+), 16 deletions(-)
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diff --git a/src/shared/fileio.c b/src/shared/fileio.c
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index 1077375735..be775f982a 100644
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--- a/src/shared/fileio.c
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+++ b/src/shared/fileio.c
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@@ -25,6 +25,7 @@
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 #include "strv.h"
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 #include "utf8.h"
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 #include "ctype.h"
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+#include "def.h"
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 #include "fileio.h"
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 int write_string_stream(FILE *f, const char *line) {
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@@ -108,7 +109,6 @@ int write_string_file_atomic(const char *fn, const char *line) {
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 int read_one_line_file(const char *fn, char **line) {
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         _cleanup_fclose_ FILE *f = NULL;
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-        char t[LINE_MAX], *c;
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         assert(fn);
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         assert(line);
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@@ -117,21 +117,7 @@ int read_one_line_file(const char *fn, char **line) {
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         if (!f)
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                 return -errno;
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-        if (!fgets(t, sizeof(t), f)) {
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-
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-                if (ferror(f))
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-                        return errno ? -errno : -EIO;
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-
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-                t[0] = 0;
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-        }
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-
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-        c = strdup(t);
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-        if (!c)
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-                return -ENOMEM;
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-        truncate_nl(c);
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-
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-        *line = c;
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-        return 0;
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+        return read_line(f, LONG_LINE_MAX, line);
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 }
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 int read_full_stream(FILE *f, char **contents, size_t *size) {