ed

simple ed
git clone git://git.2f30.org/ed.git
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commit a927f6f629d8faa068aa1aff9ebf1dcce7f349ca
parent ff26d4769e3b190bbc051526359a9235803b51af
Author: sin <sin@2f30.org>
Date:   Thu Dec  3 12:12:59 +0000

Use mkstemp() instead of a fixed filename "ed.tmp"

Diffstat:
ed.c | 12++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/ed.c b/ed.c @@ -38,6 +38,7 @@ size_t idxsize, lastidx; struct hline *zero; char *text; char *savfname; +char tmpname[FILENAME_MAX]; size_t sizetxt, memtxt; int scratch; int pflag, modflag, uflag; @@ -207,7 +208,7 @@ clearbuf() { if (scratch) close(scratch); - remove("ed.tmp"); + remove(tmpname); free(zero); zero = NULL; scratch = csize = idxsize = lastidx = curln = lastln = 0; @@ -221,7 +222,14 @@ setscratch() mode_t mode = S_IRUSR | S_IWUSR; clearbuf(); - if ((scratch = open("ed.tmp", flags, mode)) < 0 || + strcpy(tmpname, "ed.XXXXXX"); + if (mkstemp(tmpname) < 0) { + /* try /tmp if cwd is not writable */ + strcpy(tmpname, "/tmp/ed.XXXXXX"); + if (mkstemp(tmpname) < 0) + error("failed to create scratch file"); + } + if ((scratch = open(tmpname, flags, mode)) < 0 || (k = makeline("", NULL))) { error("input/output error in scratch file"); }