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Merge pull request #2696 from brauner/2018-10-17/fix_append_config_line

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confile: fix append_unexp_config_line()
This commit is contained in:
Wolfgang Bumiller 2018-10-18 21:55:44 +02:00 committed by GitHub
commit 5fb2bc71b6
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1 changed files with 8 additions and 6 deletions
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14
src/lxc/confile.c
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@ -2038,10 +2038,12 @@ static int set_config_console_size(const char *key, const char *value,
int append_unexp_config_line(const char *line, struct lxc_conf *conf)
{
size_t len = conf->unexpanded_len, linelen = strlen(line);
size_t linelen;
size_t len = conf->unexpanded_len;
update_hwaddr(line);
linelen = strlen(line);
while (conf->unexpanded_alloced <= len + linelen + 2) {
char *tmp = realloc(conf->unexpanded_config,
conf->unexpanded_alloced + 1024);
@ -2050,16 +2052,16 @@ int append_unexp_config_line(const char *line, struct lxc_conf *conf)
if (!conf->unexpanded_config)
*tmp = '\0';
conf->unexpanded_config = tmp;
conf->unexpanded_alloced += 1024;
}
(void)strlcat(conf->unexpanded_config, line, conf->unexpanded_alloced);
memcpy(conf->unexpanded_config + conf->unexpanded_len, line, linelen);
conf->unexpanded_len += linelen;
if (line[linelen - 1] != '\n') {
(void)strlcat(conf->unexpanded_config, "\n", conf->unexpanded_alloced);
conf->unexpanded_len++;
}
if (line[linelen - 1] != '\n')
conf->unexpanded_config[conf->unexpanded_len++] = '\n';
conf->unexpanded_config[conf->unexpanded_len] = '\0';
return 0;
}