X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fprint_ipv6_addr.c;h=8b11e1fbc2dbc479e3b920a1f7efd9f364b2ea9f;hb=794151cfe76f80fb2c7eebb8d3fbbce8fc5ccb09;hp=e96c0d3d712b8b04eb2668ab6084ede42fe3b3d9;hpb=39feebea4d3a4cd05ea264202f8523202190f43f;p=i3%2Fi3status diff --git a/src/print_ipv6_addr.c b/src/print_ipv6_addr.c index e96c0d3..8b11e1f 100644 --- a/src/print_ipv6_addr.c +++ b/src/print_ipv6_addr.c @@ -1,13 +1,19 @@ // vim:ts=8:expandtab +#include +#include +#include +#include + #include #include #include #include -#include -#include #include #include -#include +#include +#include + +#include "i3status.h" static char *get_sockname(struct addrinfo *addr) { static char buf[INET6_ADDRSTRLEN+1]; @@ -45,7 +51,7 @@ static char *get_sockname(struct addrinfo *addr) { if ((ret = getnameinfo((struct sockaddr*)&local, local_len, buf, sizeof(buf), NULL, 0, NI_NUMERICHOST)) != 0) { - fprintf(stderr, "getnameinfo(): %s\n", gai_strerror(ret)); + fprintf(stderr, "i3status: getnameinfo(): %s\n", gai_strerror(ret)); (void)close(fd); return NULL; } @@ -58,7 +64,7 @@ static char *get_sockname(struct addrinfo *addr) { * Returns the IPv6 address with which you have connectivity at the moment. * The char * is statically allocated and mustn't be freed */ -static char *get_ipv6_addr() { +static char *get_ipv6_addr(void) { struct addrinfo hints; struct addrinfo *result, *resp; static struct addrinfo *cached = NULL; @@ -72,10 +78,13 @@ static char *get_ipv6_addr() { hints.ai_family = AF_INET6; hints.ai_socktype = SOCK_DGRAM; - /* We resolve the K root server to get a public IPv6 address. You can - * replace this with any other host which has an AAAA record, but the - * K root server is a pretty safe bet. */ - if (getaddrinfo("k.root-servers.net", "domain", &hints, &result) != 0) { + /* We use the public IPv6 of the K root server here. It doesn’t matter + * which IPv6 address we use (we don’t even send any packets), as long + * as it’s considered global by the kernel. + * NB: We don’t use a hostname since that would trigger a DNS lookup. + * By using an IPv6 address, getaddrinfo() will *not* do a DNS lookup, + * but return the address in the appropriate struct. */ + if (getaddrinfo("2001:7fd::1", "domain", &hints, &result) != 0) { /* We don’t display the error here because most * likely, there just is no connectivity. * Thus, don’t spam the user’s console. */ @@ -107,24 +116,30 @@ static char *get_ipv6_addr() { return NULL; } -void print_ipv6_info(const char *format_up, const char *format_down) { +void print_ipv6_info(yajl_gen json_gen, char *buffer, const char *format_up, const char *format_down) { const char *walk; char *addr_string = get_ipv6_addr(); + char *outwalk = buffer; if (addr_string == NULL) { - printf("%s", format_down); + START_COLOR("color_bad"); + OUTPUT_FULL_TEXT(format_down); + END_COLOR; return; } for (walk = format_up; *walk != '\0'; walk++) { if (*walk != '%') { - putchar(*walk); + *(outwalk++) = *walk; continue; } if (strncmp(walk+1, "ip", strlen("ip")) == 0) { - printf("%s", addr_string); + outwalk += sprintf(outwalk, "%s", addr_string); walk += strlen("ip"); } } + START_COLOR("color_good"); + OUTPUT_FULL_TEXT(buffer); + END_COLOR; }