diff options
Diffstat (limited to 'src/roff/groff/pipeline.c')
| -rw-r--r-- | src/roff/groff/pipeline.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/roff/groff/pipeline.c b/src/roff/groff/pipeline.c index ed6c17ee..eaf16339 100644 --- a/src/roff/groff/pipeline.c +++ b/src/roff/groff/pipeline.c @@ -108,6 +108,7 @@ static char *i_to_a P((int)); #include <fcntl.h> #include <ctype.h> #include <string.h> +#include <stdlib.h> #include "nonposix.h" @@ -309,13 +310,25 @@ run_pipeline(int ncommands, char ***commands, int no_pipe) int save_stdin = dup(0); int save_stdout = dup(1); char *tmpfiles[2]; - char tem1[L_tmpnam], tem2[L_tmpnam]; int infile = 0; int outfile = 1; int i, f, ret = 0; - tmpfiles[0] = tmpnam(tem1); - tmpfiles[1] = tmpnam(tem2); + /* Choose names for a pair of temporary files to implement the pipeline. + Microsoft's `tempnam' uses the directory specified by `getenv("TMP")' + if it exists; in case it doesn't, try the GROFF alternatives, or + `getenv("TEMP")' as last resort -- at least one of these had better + be set, since Microsoft's default has a high probability of failure. */ + char *tmpdir; + if ((tmpdir = getenv("GROFF_TMPDIR")) == NULL + && (tmpdir = getenv("TMPDIR")) == NULL) + tmpdir = getenv("TEMP"); + + /* Don't use `tmpnam' here: Microsoft's implementation yields unusable + file names if current directory is on network share with read-only + root. */ + tmpfiles[0] = tempnam(tmpdir, NULL); + tmpfiles[1] = tempnam(tmpdir, NULL); for (i = 0; i < ncommands; i++) { int exit_status; |