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backup_config_append(): Report error on openat(2) failure

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This commit is contained in:
Marko Mäkelä
2026-10-15 13:02:55 +03:00
parent 76acc16c5f
commit cd96a9ba04
1 changed files with 12 additions and 11 deletions
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23
sql/sql_backup.cc
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@@ -551,22 +551,23 @@ int backup_config_append(IF_WIN(const char*, int) target,
#else
int dst= openat(target, "backup.cnf",
O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0666);
if (dst < 0)
return dst;
ssize_t ret;
for (; (ret= write(dst, config, size)) >= 0; config+= ret, size -= ret)
if (dst >= 0)
{
assert(size_t(ret) <= size);
if (!(size-= size_t(ret)))
ssize_t ret;
for (; (ret= write(dst, config, size)) >= 0; config+= ret, size -= ret)
{
ret= 0;
break;
assert(size_t(ret) <= size);
if (!(size-= size_t(ret)))
{
ret= 0;
break;
}
}
if (!(close(dst) | ret))
return 0;
}
if (!(close(dst) | ret))
return 0;
#endif
my_error(ER_CANT_CREATE_FILE, MYF(0), "backup.cnf", errno);
my_error(ER_CANT_CREATE_FILE, MYF(ME_ERROR_LOG), "backup.cnf", errno);
return -1;
}