From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/network/inet_aton.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/network/inet_aton.c (limited to 'src/network/inet_aton.c') diff --git a/src/network/inet_aton.c b/src/network/inet_aton.c new file mode 100644 index 0000000..c65f7c2 --- /dev/null +++ b/src/network/inet_aton.c @@ -0,0 +1,41 @@ +#include +#include +#include +#include +#include + +int __inet_aton(const char *s0, struct in_addr *dest) +{ + const char *s = s0; + unsigned char *d = (void *)dest; + unsigned long a[4] = { 0 }; + char *z; + int i; + + for (i=0; i<4; i++) { + a[i] = strtoul(s, &z, 0); + if (z==s || (*z && *z != '.') || !isdigit(*s)) + return 0; + if (!*z) break; + s=z+1; + } + if (i==4) return 0; + switch (i) { + case 0: + a[1] = a[0] & 0xffffff; + a[0] >>= 24; + case 1: + a[2] = a[1] & 0xffff; + a[1] >>= 16; + case 2: + a[3] = a[2] & 0xff; + a[2] >>= 8; + } + for (i=0; i<4; i++) { + if (a[i] > 255) return 0; + d[i] = a[i]; + } + return 1; +} + +weak_alias(__inet_aton, inet_aton); -- cgit v1.2.3