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#include "diald.h"
/* Grumble. Attempt to generate a nicely formatted ascii date without
* a built in newline.
*/
char *cdate(time_t now)
{
static char dt[128];
int len;
len = strftime(dt, 128, "%c %Z", localtime(&now));
if (len == 128) dt[len] = 0;
return dt;
}
int getsn(FILE *fp,char *buf,int len)
{
int c;
int i = 0;
while ((c = fgetc(fp)) != EOF) {
if (c == '\n') {
buf[i] = 0;
return i;
}
if (i < len-1) {
buf[i++] = c;
}
}
if (i == 0)
return EOF;
buf[i] = 0;
return i;
}
struct proto {
char *name;
int proto;
};
static struct proto *protos = NULL;
static int proto_init=0;
static int proto_lines=0;
static void init_protos()
{
FILE *fp;
char line[1024];
char name[20];
int proto;
if ((fp = fopen("/etc/protocols","r"))) {
while (getsn(fp,line,1024) != EOF) {
if (sscanf(line,"%19s %d",name,&proto) == 2)
proto_lines++;
}
fclose(fp);
if ((fp = fopen("/etc/protocols","r"))) {
protos = malloc(sizeof(struct proto)*proto_lines);
proto_lines = 0;
while (getsn(fp,line,1024) != EOF) {
if (sscanf(line,"%19s %d",name,&proto) == 2) {
protos[proto_lines].name = strdup(name);
protos[proto_lines].proto = proto;
proto_lines++;
}
}
fclose(fp);
}
}
proto_init=1;
}
int getprotocol(const char *name)
{
int i;
if (!proto_init)
init_protos();
for (i = 0; i < proto_lines; i++)
if (strcmp(protos[i].name,name) == 0)
return protos[i].proto;
return 0;
}
char *getprotonumber(int proto)
{
static char buf[16];
int i;
if (!proto_init)
init_protos();
for (i = 0; i < proto_lines; i++)
if (protos[i].proto == proto)
return protos[i].name;
sprintf(buf, "%d", proto);
return buf;
}
struct serv {
char *name;
char *proto;
int serv;
};
static struct serv *servs = NULL;
static int serv_init=0;
static int serv_lines=0;
static void init_servs()
{
FILE *fp;
char line[1024];
char name[20];
char proto[20];
int serv;
if ((fp = fopen("/etc/services","r"))) {
while (getsn(fp,line,1024) != EOF) {
if (sscanf(line,"%19s %d/%s",name,&serv,proto) == 3)
serv_lines++;
}
fclose(fp);
if ((fp = fopen("/etc/services","r"))) {
servs = malloc(sizeof(struct serv)*serv_lines);
serv_lines = 0;
while (getsn(fp,line,1024) != EOF) {
if (sscanf(line,"%19s %d/%s",name,&serv,proto) == 3) {
servs[serv_lines].name = strdup(name);
servs[serv_lines].proto = strdup(proto);
servs[serv_lines].serv = serv;
serv_lines++;
}
}
fclose(fp);
}
}
serv_init=1;
}
int getservice(const char *name, const char *proto)
{
int i;
int serv;
char *end;
serv=strtoul(name, &end, 10);
if (*end==0 || isspace(*end)) {
return serv >= 65536 ? 0 : serv;
}
if (!serv_init)
init_servs();
for (i = 0; i < serv_lines; i++)
if (strcmp(servs[i].name,name) == 0
&& strcmp(servs[i].proto,proto) == 0) {
return servs[i].serv;
}
return 0;
}
#if 0
/* Stuff needed because to keep checker happy,
* because the fast versions of these address memory in four
* byte blocks, which are often outside of permitted ranges.
*/
int strlen(const char *s)
{
int i = 0;
while (*s++)
i++;
return i;
}
char *strdup(const char *s)
{
char *t = malloc(strlen(s)+1);
char *t2 = t;
while ((*t++ = *s++));
return t2;
}
char *strrchr(const char *s, int c)
{
int i;
for (i = strlen(s)-1; i >= 0; i--)
if (s[i] == c) return (char *)&s[i];
return 0;
}
char *strcat(char *dest, const char *src)
{
char *p = dest;
while ((*p++));
p--;
while ((*p++ = *src++));
return dest;
}
#endif
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