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pax: workaround for mkstemp() and long filenames

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. symptom: mkstemp() looping forever trying to find a unique
	  filename
	. reported by pikpik as "BSDTar Endless Extraction of
	  NCurses' Distfiles"
This commit is contained in:
Ben Gras 2012-12-11 03:50:04 +01:00
parent e286ccc05b
commit faa032f15c
1 changed files with 15 additions and 0 deletions
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15
bin/pax/file_subs.c
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@ -160,8 +160,23 @@ file_creat(ARCHD *arcn, int write_to_hardlink)
* in the path until chk_path() finds that it cannot fix
* anything further. if that happens we just give up.
*/
#ifdef __minix
{
/* For minix, generate the temporary filename
* conservatively - just write Xes into the last component.
* There is space because of the malloc().
*/
int cc;
char *last_slash;
strcpy(arcn->tmp_name, arcn->name);
if(!(last_slash = strrchr(arcn->tmp_name, '/')))
strcpy(arcn->tmp_name, "XXXXXX");
else strcpy(last_slash+1, "XXXXXX");
}
#else
(void)snprintf(arcn->tmp_name, arcn->nlen + 8, "%s.XXXXXX",
arcn->name);
#endif
fd = mkstemp(arcn->tmp_name);
if (fd >= 0)
break;