diff options
Diffstat (limited to 'patches/0011-Fix-check-of-return-value-of-fwrite.patch')
| -rw-r--r-- | patches/0011-Fix-check-of-return-value-of-fwrite.patch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/patches/0011-Fix-check-of-return-value-of-fwrite.patch b/patches/0011-Fix-check-of-return-value-of-fwrite.patch new file mode 100644 index 0000000..022a90d --- /dev/null +++ b/patches/0011-Fix-check-of-return-value-of-fwrite.patch @@ -0,0 +1,81 @@ +From 1e9104c18019e7dc6b5590aea4b1d4f9d8ecfd56 Mon Sep 17 00:00:00 2001 +From: Bruno Haible <bruno@clisp.org> +Date: Sat, 7 Apr 2018 12:21:04 +0200 +Subject: [PATCH 11/17] Fix check of return value of fwrite(). + +* src/patch.c (copy_till): Consider incomplete fwrite() write as an error. +* src/pch.c (pch_write_line, do_ed_script): Likewise. +--- + src/patch.c | 4 ++-- + src/pch.c | 14 +++++++++----- + 2 files changed, 11 insertions(+), 7 deletions(-) + +diff --git a/src/patch.c b/src/patch.c +index 1ae91d9..3fcaec5 100644 +--- a/src/patch.c ++++ b/src/patch.c +@@ -2,7 +2,7 @@ + + /* Copyright (C) 1984, 1985, 1986, 1987, 1988 Larry Wall + +- Copyright (C) 1989-1993, 1997-1999, 2002-2003, 2006, 2009-2012 Free Software ++ Copyright (C) 1989-1993, 1997-1999, 2002-2003, 2006, 2009-2018 Free Software + Foundation, Inc. + + This program is free software: you can redistribute it and/or modify +@@ -1641,7 +1641,7 @@ copy_till (struct outstate *outstate, lin lastline) + if (size) + { + if ((! outstate->after_newline && putc ('\n', fp) == EOF) +- || ! fwrite (s, sizeof *s, size, fp)) ++ || fwrite (s, sizeof *s, size, fp) < size) + write_fatal (); + outstate->after_newline = s[size - 1] == '\n'; + outstate->zero_output = false; +diff --git a/src/pch.c b/src/pch.c +index cda3dfa..79a3c99 100644 +--- a/src/pch.c ++++ b/src/pch.c +@@ -2279,8 +2279,11 @@ pfetch (lin line) + bool + pch_write_line (lin line, FILE *file) + { +- bool after_newline = (p_len[line] > 0) && (p_line[line][p_len[line] - 1] == '\n'); +- if (! fwrite (p_line[line], sizeof (*p_line[line]), p_len[line], file)) ++ bool after_newline = ++ (p_len[line] > 0) && (p_line[line][p_len[line] - 1] == '\n'); ++ ++ if (fwrite (p_line[line], sizeof (*p_line[line]), p_len[line], file) ++ < p_len[line]) + write_fatal (); + return after_newline; + } +@@ -2427,13 +2430,14 @@ do_ed_script (char const *inname, char const *outname, + ed_command_letter = get_ed_command_letter (buf); + if (ed_command_letter) { + if (tmpfp) +- if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) ++ if (fwrite (buf, sizeof *buf, chars_read, tmpfp) < chars_read) + write_fatal (); + if (ed_command_letter != 'd' && ed_command_letter != 's') { + p_pass_comments_through = true; + while ((chars_read = get_line ()) != 0) { + if (tmpfp) +- if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) ++ if (fwrite (buf, sizeof *buf, chars_read, tmpfp) ++ < chars_read) + write_fatal (); + if (chars_read == 2 && strEQ (buf, ".\n")) + break; +@@ -2448,7 +2452,7 @@ do_ed_script (char const *inname, char const *outname, + } + if (dry_run || skip_rest_of_patch) + return; +- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0 ++ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) < (size_t) 4 + || fflush (tmpfp) != 0) + write_fatal (); + +-- +2.11.0 + |