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move isnumericipv4() to common.c

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rofl0r
2020-10-28 10:39:27 +00:00
parent 486f8200ad
commit 452830283c
3 changed files with 30 additions and 29 deletions
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31
src/hostsreader.c
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@@ -1,6 +1,7 @@
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "common.h"
/*
simple reader for /etc/hosts
@@ -24,7 +25,6 @@ void hostsreader_close(struct hostsreader *ctx) {
fclose(ctx->f);
}
static int isnumericipv4(const char* ipstring);
int hostsreader_get(struct hostsreader *ctx, char* buf, size_t bufsize) {
while(1) {
if(!fgets(buf, bufsize, ctx->f)) return 0;
@@ -51,7 +51,7 @@ int hostsreader_get(struct hostsreader *ctx, char* buf, size_t bufsize) {
}
if(!l || !*p) continue;
*p = 0;
if(isnumericipv4(ctx->ip)) return 1;
if(pc_isnumericipv4(ctx->ip)) return 1;
}
}
@@ -94,30 +94,3 @@ int main(int a, char**b) {
printf("%s\n", ret ? ret : "null");
}
#endif
/* isnumericipv4() taken from libulz */
static int isnumericipv4(const char* ipstring) {
size_t x = 0, n = 0, d = 0;
int wasdot = 0;
while(1) {
switch(ipstring[x]) {
case 0: goto done;
case '.':
if(!n || wasdot) return 0;
d++;
wasdot = 1;
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
n++;
wasdot = 0;
break;
default:
return 0;
}
x++;
}
done:
if(d == 3 && n >= 4 && n <= 12) return 1;
return 0;
}