From a533b4bc4948c6b8f143eb9607ea4b0bf1b1197f Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@cloudius-systems.com>
Date: Thu, 10 Jan 2013 14:59:04 +0200
Subject: [PATCH] file: implement fgets()
---
libc/file.cc | 21 +++++++++++++++++++++
runtime.cc | 5 -----
2 files changed, 21 insertions(+), 5 deletions(-)
diff --git a/libc/file.cc b/libc/file.cc
index 97d0b90e7..d0c27c9f2 100644
--- a/libc/file.cc
+++ b/libc/file.cc
@@ -61,6 +61,27 @@ FILE* fopen(const char* fname, const char* fmode)
return new std_file(fd);
}
+char *fgets(char *s, int size, FILE *stream)
+{
+ char* orig = s;
+ while (size > 1) {
+ int r = ::read(stream->_fileno, s, 1);
+ assert(r != -1);
+ if (r == 0) {
+ break;
+ }
+ ++s;
+ --size;
+ if (s[-1] == '\n') {
+ break;
+ }
+ }
+ if (size) {
+ *s = '\0';
+ }
+ return s == orig ? nullptr : orig;
+}
+
DIR* opendir(const char* fname)
{
auto f = rootfs->open(fname);
diff --git a/runtime.cc b/runtime.cc
index 631db5d01..93132cabe 100644
--- a/runtime.cc
+++ b/runtime.cc
@@ -402,11 +402,6 @@ int fgetc(FILE *stream)
UNIMPLEMENTED("fgetc");
}
-char *fgets(char *s, int size, FILE *stream)
-{
- UNIMPLEMENTED("fgets");
-}
-
#undef getc
int getc(FILE *stream)
{
--
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