LineageOS/android_external_nano
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Limiting the number of backup files to one hundred thousand, well

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before finding a unused filename takes an annoying amount of time.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5225 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
Benno Schulenberg
2015-05-08 21:11:30 +00:00
parent 55d1e1a9b8
commit f111c0d6ab
4 changed files with 13 additions and 27 deletions
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20
src/files.c
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@@ -991,20 +991,17 @@ int open_file(const char *filename, bool newfie, bool quiet, FILE **f)
* extension exists, we return "". */
char *get_next_filename(const char *name, const char *suffix)
{
static int ulmax_digits = -1;
unsigned long i = 0;
char *buf;
size_t namelen, suffixlen;
size_t wholenamelen;
assert(name != NULL && suffix != NULL);
if (ulmax_digits == -1)
ulmax_digits = digits(ULONG_MAX);
wholenamelen = strlen(name) + strlen(suffix);
namelen = strlen(name);
suffixlen = strlen(suffix);
buf = charalloc(namelen + suffixlen + ulmax_digits + 2);
/* Reserve space for: the name plus the suffix plus a dot plus
* possibly five digits plus a null byte. */
buf = charalloc(wholenamelen + 7);
sprintf(buf, "%s%s", name, suffix);
while (TRUE) {
@@ -1012,11 +1009,12 @@ char *get_next_filename(const char *name, const char *suffix)
if (stat(buf, &fs) == -1)
return buf;
if (i == ULONG_MAX)
/* Limit the number of backup files to a hundred thousand. */
if (++i == 100000)
break;
i++;
sprintf(buf + namelen + suffixlen, ".%lu", i);
sprintf(buf + wholenamelen, ".%lu", i);
}
/* We get here only if there is no possible save file. Blank out