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authorFlorian Weimer <fweimer@redhat.com>2018-07-06 16:53:48 +0200
committerFlorian Weimer <fweimer@redhat.com>2018-07-06 17:52:54 +0200
commit3f5e3f5d066dcffb80af48ae2cf35a01a85a8f10 (patch)
tree2eb99509fbdfb5f61ee40bdf634c63f092b85ae2 /libio/ftello64.c
parent397c54c1afa531242602fe3ac7bb47eff0e909f9 (diff)
libio: Implement internal function __libc_readline_unlocked
This is a variant of fgets which fails with ERANGE if the buffer is too small, and the buffer length is given as an argument of type size_t. This function will be useful for implementing NSS file reading operations. Compared to a direct implementation using the public API, it avoids an lseek system call in case the line terminator can be found in the internal read buffer.
Diffstat (limited to 'libio/ftello64.c')
-rw-r--r--libio/ftello64.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/libio/ftello64.c b/libio/ftello64.c
index 281667fee2..d5546e1fb0 100644
--- a/libio/ftello64.c
+++ b/libio/ftello64.c
@@ -32,7 +32,7 @@
#ifndef __OFF_T_MATCHES_OFF64_T
off64_t
-ftello64 (FILE *fp)
+__ftello64 (FILE *fp)
{
off64_t pos;
CHECK_FILE (fp, -1L);
@@ -52,5 +52,6 @@ ftello64 (FILE *fp)
}
return pos;
}
-
+libc_hidden_def (__ftello64)
+weak_alias (__ftello64, ftello64)
#endif