diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/stdio/fmemopen.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libc/stdio/fmemopen.c b/lib/libc/stdio/fmemopen.c index 35b0ff7062a..bfc9ca4c173 100644 --- a/lib/libc/stdio/fmemopen.c +++ b/lib/libc/stdio/fmemopen.c @@ -1,4 +1,4 @@ -/* $OpenBSD: fmemopen.c,v 1.4 2020/08/14 12:00:33 millert Exp $ */ +/* $OpenBSD: fmemopen.c,v 1.5 2020/08/17 16:17:39 millert Exp $ */ /* * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org> @@ -30,6 +30,7 @@ struct state { size_t size; /* allocated size */ size_t len; /* length of the data */ int update; /* open for update */ + int append; /* open for append */ }; static int @@ -51,6 +52,9 @@ fmemopen_write(void *v, const char *b, int l) struct state *st = v; int i; + if (st->append) + st->pos = st->len; + for (i = 0; i < l && i + st->pos < st->size; i++) st->string[st->pos + i] = b[i]; st->pos += i; @@ -147,6 +151,7 @@ fmemopen(void *buf, size_t size, const char *mode) st->len = (oflags & O_TRUNC) ? 0 : size; st->size = size; st->update = oflags & O_RDWR; + st->append = oflags & O_APPEND; if (buf == NULL) { if ((st->string = malloc(size)) == NULL) { @@ -173,7 +178,7 @@ fmemopen(void *buf, size_t size, const char *mode) fp->_flags = (short)flags; fp->_file = -1; - fp->_cookie = (void *)st; + fp->_cookie = st; fp->_read = (flags & __SWR) ? NULL : fmemopen_read; fp->_write = (flags & __SRD) ? NULL : fmemopen_write; fp->_seek = fmemopen_seek; |