emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

dnsd,sestatus: use libbb to parse config file (by Vladimir)

Browse Source 
function                                             old     new   delta
dnsd_main                                           1544    1487     -57
This commit is contained in:
Denis Vlasenko
2008-07-20 17:48:59 +00:00
parent 1e8034e614
commit a34f1ed737
2 changed files with 36 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
networking/dnsd.c
View File

@ -101,75 +101,47 @@ static void undot(uint8_t * rip)
}
}
/*
* Read one line of hostname/IP from file
* Returns 0 for each valid entry read, -1 at EOF
* Assumes all host names are lower case only
* Hostnames with more than one label are not handled correctly.
* Presently the dot is copied into name without
* converting to a length/string substring for that label.
*/
static int getfileentry(FILE *fp, struct dns_entry *s)
{
unsigned int a,b,c,d;
char *line, *r, *name;
restart:
line = r = xmalloc_fgets(fp);
if (!r)
return -1;
while (*r == ' ' || *r == '\t') {
r++;
if (!*r || *r == '#' || *r == '\n') {
free(line);
goto restart; /* skipping empty/blank and commented lines */
}
}
name = r;
while (*r != ' ' && *r != '\t')
r++;
*r++ = '\0';
if (sscanf(r, ".%u.%u.%u.%u"+1, &a, &b, &c, &d) != 4) {
free(line);
goto restart; /* skipping wrong lines */
}
sprintf(s->ip, ".%u.%u.%u.%u"+1, a, b, c, d);
sprintf(s->rip, ".%u.%u.%u.%u", d, c, b, a);
undot((uint8_t*)s->rip);
convname(s->name, (uint8_t*)name);
if (OPT_verbose)
fprintf(stderr, "\tname:%s, ip:%s\n", &(s->name[1]),s->ip);
free(line);
return 0;
}
/*
* Read hostname/IP records from file
*/
static void dnsentryinit(void)
{
FILE *fp;
parser_t *parser;
struct dns_entry *m, *prev;
prev = dnsentry = NULL;
fp = xfopen(fileconf, "r");
parser = config_open(fileconf);
if (parser) {
char *token[2];
while (config_read(parser, token, 2, 0, "# \t", 0)) {
unsigned int a,b,c,d;
/*
* Assumes all host names are lower case only
* Hostnames with more than one label are not handled correctly.
* Presently the dot is copied into name without
* converting to a length/string substring for that label.
*/
if (!token[1] || sscanf(token[1], ".%u.%u.%u.%u"+1, &a, &b, &c, &d) != 4)
continue;
while (1) {
m = xzalloc(sizeof(*m));
/*m->next = NULL;*/
if (getfileentry(fp, m))
break;
m = xzalloc(sizeof(*m));
/*m->next = NULL;*/
sprintf(m->ip, ".%u.%u.%u.%u"+1, a, b, c, d);
sprintf(m->rip, ".%u.%u.%u.%u", d, c, b, a);
undot((uint8_t*)m->rip);
convname(m->name, (uint8_t*)token[0]);
if (prev == NULL)
dnsentry = m;
else
prev->next = m;
prev = m;
if (OPT_verbose)
fprintf(stderr, "\tname:%s, ip:%s\n", &(m->name[1]), m->ip);
if (prev == NULL)
dnsentry = m;
else
prev->next = m;
prev = m;
}
config_close(parser);
}
fclose(fp);
}
/*