diff options
| -rw-r--r-- | Build/source/texk/xdvik/ChangeLog | 4 | ||||
| -rw-r--r-- | Build/source/texk/xdvik/dvi-init.c | 9 |
2 files changed, 12 insertions, 1 deletions
diff --git a/Build/source/texk/xdvik/ChangeLog b/Build/source/texk/xdvik/ChangeLog index 814c55b58a8..9068838026c 100644 --- a/Build/source/texk/xdvik/ChangeLog +++ b/Build/source/texk/xdvik/ChangeLog @@ -1,5 +1,9 @@ 2022-01-31 Karl Berry <karl@freefriends.org> + * dvi-init.c (file_exists_p): check for failed fstat. + Found by John Hawkinson, tlbuild 30 Jan 2022 22:42:23. + https://tug.org/pipermail/tlbuild/2022q1/005105.html + * xdvi.1.in: add 262144=find and 524288=files. Found by John Hawkinson, tlbuild 30 Jan 2022 23:11:10. diff --git a/Build/source/texk/xdvik/dvi-init.c b/Build/source/texk/xdvik/dvi-init.c index 6126a08fe1b..127063d2f66 100644 --- a/Build/source/texk/xdvik/dvi-init.c +++ b/Build/source/texk/xdvik/dvi-init.c @@ -1242,7 +1242,14 @@ file_exists_p(const char *path, dviErrFlagT *errflag) /* fprintf(stderr, "after internal_open_dvi2: xfopen\n"); */ /* shouldn't happen */ - if (fstat(fileno(m_dvi_fp), &fstatbuf) != 0 || S_ISDIR(fstatbuf.st_mode)) { /* if it's a directory */ + int rv = fstat(fileno(m_dvi_fp), &fstatbuf); + if (rv == -1) { + perror("xdvi: file_exists_p: fstat"); + fclose(m_dvi_fp); + m_dvi_fp = NULL; + return False; + } + if (S_ISDIR(fstatbuf.st_mode)) { /* if it's a directory */ *errflag = FILE_IS_DIRECTORY; fclose(m_dvi_fp); m_dvi_fp = NULL; |