diff options
Diffstat (limited to 'iconv/iconvconfig.c')
| -rw-r--r-- | iconv/iconvconfig.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/iconv/iconvconfig.c b/iconv/iconvconfig.c index 379a3bf945..6959d947f8 100644 --- a/iconv/iconvconfig.c +++ b/iconv/iconvconfig.c @@ -305,7 +305,7 @@ main (int argc, char *argv[]) if (status == 0) status = write_output (); else - fputs ("No output written!\n", stderr); + error (1, 0, _("no output file produced because warning were issued")); return status; } @@ -966,6 +966,7 @@ write_output (void) struct iovec iov[6]; static const gidx_t null_word; size_t total; + char tmpfname[sizeof (GCONV_MODULES_CACHE) + strlen (".XXXXXX")]; /* Function to insert the names. */ static void name_insert (const void *nodep, VISIT value, int level) @@ -992,7 +993,8 @@ write_output (void) } /* Open the output file. */ - fd = open (GCONV_MODULES_CACHE, O_TRUNC | O_CREAT | O_RDWR, 0644); + strcpy (stpcpy (tmpfname, GCONV_MODULES_CACHE), ".XXXXXX"); + fd = mkstemp (tmpfname); if (fd == -1) return 1; @@ -1144,12 +1146,17 @@ write_output (void) total += iov[idx].iov_len; ++idx; - if (TEMP_FAILURE_RETRY (writev (fd, iov, idx)) != total) + if (TEMP_FAILURE_RETRY (writev (fd, iov, idx)) != total + /* The file was created with mode 0600. Make it world-readable. */ + || fchmod (fd, 0644) != 0 + /* Rename the file, possibly replacing an old one. */ + || rename (tmpfname, GCONV_MODULES_CACHE) != 0) { int save_errno = errno; close (fd); - unlink (GCONV_MODULES_CACHE); - error (EXIT_FAILURE, save_errno, gettext ("cannot write output file")); + unlink (tmpfname); + error (EXIT_FAILURE, save_errno, + gettext ("cannot generate output file")); } close (fd); |