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Unified Diff: fusl/src/network/getnameinfo.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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« fusl/arch/aarch64/atomic_arch.h ('K') | « fusl/src/network/getifaddrs.c ('k') | fusl/src/network/getpeername.c » ('j') | no next file with comments »
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Index: fusl/src/network/getnameinfo.c
diff --git a/fusl/src/network/getnameinfo.c b/fusl/src/network/getnameinfo.c
index 5e6fae3ed0e517e4a8a76c9b8ca5e75b99a31c3a..5de7ef8cf4f600c7ce380f565b11e42051581451 100644
--- a/fusl/src/network/getnameinfo.c
+++ b/fusl/src/network/getnameinfo.c
@@ -10,193 +10,228 @@
#include "lookup.h"
#include "stdio_impl.h"
-int __dns_parse(const unsigned char *, int, int (*)(void *, int, const void *, int, const void *), void *);
-int __dn_expand(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
-int __res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
-int __res_send(const unsigned char *, int, unsigned char *, int);
+int __dns_parse(const unsigned char*,
+ int,
+ int (*)(void*, int, const void*, int, const void*),
+ void*);
+int __dn_expand(const unsigned char*,
+ const unsigned char*,
+ const unsigned char*,
+ char*,
+ int);
+int __res_mkquery(int,
+ const char*,
+ int,
+ int,
+ const unsigned char*,
+ int,
+ const unsigned char*,
+ unsigned char*,
+ int);
+int __res_send(const unsigned char*, int, unsigned char*, int);
#define PTR_MAX (64 + sizeof ".in-addr.arpa")
#define RR_PTR 12
-static char *itoa(char *p, unsigned x) {
- p += 3*sizeof(int);
- *--p = 0;
- do {
- *--p = '0' + x % 10;
- x /= 10;
- } while (x);
- return p;
+static char* itoa(char* p, unsigned x) {
+ p += 3 * sizeof(int);
+ *--p = 0;
+ do {
+ *--p = '0' + x % 10;
+ x /= 10;
+ } while (x);
+ return p;
}
-static void mkptr4(char *s, const unsigned char *ip)
-{
- sprintf(s, "%d.%d.%d.%d.in-addr.arpa",
- ip[3], ip[2], ip[1], ip[0]);
+static void mkptr4(char* s, const unsigned char* ip) {
+ sprintf(s, "%d.%d.%d.%d.in-addr.arpa", ip[3], ip[2], ip[1], ip[0]);
}
-static void mkptr6(char *s, const unsigned char *ip)
-{
- static const char xdigits[] = "0123456789abcdef";
- int i;
- for (i=15; i>=0; i--) {
- *s++ = xdigits[ip[i]&15]; *s++ = '.';
- *s++ = xdigits[ip[i]>>4]; *s++ = '.';
- }
- strcpy(s, "ip6.arpa");
+static void mkptr6(char* s, const unsigned char* ip) {
+ static const char xdigits[] = "0123456789abcdef";
+ int i;
+ for (i = 15; i >= 0; i--) {
+ *s++ = xdigits[ip[i] & 15];
+ *s++ = '.';
+ *s++ = xdigits[ip[i] >> 4];
+ *s++ = '.';
+ }
+ strcpy(s, "ip6.arpa");
}
-static void reverse_hosts(char *buf, const unsigned char *a, unsigned scopeid, int family)
-{
- char line[512], *p, *z;
- unsigned char _buf[1032], atmp[16];
- struct address iplit;
- FILE _f, *f = __fopen_rb_ca("/etc/hosts", &_f, _buf, sizeof _buf);
- if (!f) return;
- if (family == AF_INET) {
- memcpy(atmp+12, a, 4);
- memcpy(atmp, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
- a = atmp;
- }
- while (fgets(line, sizeof line, f)) {
- if ((p=strchr(line, '#'))) *p++='\n', *p=0;
-
- for (p=line; *p && !isspace(*p); p++);
- *p++ = 0;
- if (__lookup_ipliteral(&iplit, line, AF_UNSPEC)<=0)
- continue;
-
- if (iplit.family == AF_INET) {
- memcpy(iplit.addr+12, iplit.addr, 4);
- memcpy(iplit.addr, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
- iplit.scopeid = 0;
- }
-
- if (memcmp(a, iplit.addr, 16) || iplit.scopeid != scopeid)
- continue;
-
- for (; *p && isspace(*p); p++);
- for (z=p; *z && !isspace(*z); z++);
- *z = 0;
- if (z-p < 256) {
- memcpy(buf, p, z-p+1);
- break;
- }
- }
- __fclose_ca(f);
+static void reverse_hosts(char* buf,
+ const unsigned char* a,
+ unsigned scopeid,
+ int family) {
+ char line[512], *p, *z;
+ unsigned char _buf[1032], atmp[16];
+ struct address iplit;
+ FILE _f, *f = __fopen_rb_ca("/etc/hosts", &_f, _buf, sizeof _buf);
+ if (!f)
+ return;
+ if (family == AF_INET) {
+ memcpy(atmp + 12, a, 4);
+ memcpy(atmp, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
+ a = atmp;
+ }
+ while (fgets(line, sizeof line, f)) {
+ if ((p = strchr(line, '#')))
+ *p++ = '\n', *p = 0;
+
+ for (p = line; *p && !isspace(*p); p++)
+ ;
+ *p++ = 0;
+ if (__lookup_ipliteral(&iplit, line, AF_UNSPEC) <= 0)
+ continue;
+
+ if (iplit.family == AF_INET) {
+ memcpy(iplit.addr + 12, iplit.addr, 4);
+ memcpy(iplit.addr, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
+ iplit.scopeid = 0;
+ }
+
+ if (memcmp(a, iplit.addr, 16) || iplit.scopeid != scopeid)
+ continue;
+
+ for (; *p && isspace(*p); p++)
+ ;
+ for (z = p; *z && !isspace(*z); z++)
+ ;
+ *z = 0;
+ if (z - p < 256) {
+ memcpy(buf, p, z - p + 1);
+ break;
+ }
+ }
+ __fclose_ca(f);
}
-static void reverse_services(char *buf, int port, int dgram)
-{
- unsigned long svport;
- char line[128], *p, *z;
- unsigned char _buf[1032];
- FILE _f, *f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
- if (!f) return;
- while (fgets(line, sizeof line, f)) {
- if ((p=strchr(line, '#'))) *p++='\n', *p=0;
-
- for (p=line; *p && !isspace(*p); p++);
- if (!*p) continue;
- *p++ = 0;
- svport = strtoul(p, &z, 10);
-
- if (svport != port || z==p) continue;
- if (dgram && strncmp(z, "/udp", 4)) continue;
- if (!dgram && strncmp(z, "/tcp", 4)) continue;
- if (p-line > 32) continue;
-
- memcpy(buf, line, p-line);
- break;
- }
- __fclose_ca(f);
+static void reverse_services(char* buf, int port, int dgram) {
+ unsigned long svport;
+ char line[128], *p, *z;
+ unsigned char _buf[1032];
+ FILE _f, *f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
+ if (!f)
+ return;
+ while (fgets(line, sizeof line, f)) {
+ if ((p = strchr(line, '#')))
+ *p++ = '\n', *p = 0;
+
+ for (p = line; *p && !isspace(*p); p++)
+ ;
+ if (!*p)
+ continue;
+ *p++ = 0;
+ svport = strtoul(p, &z, 10);
+
+ if (svport != port || z == p)
+ continue;
+ if (dgram && strncmp(z, "/udp", 4))
+ continue;
+ if (!dgram && strncmp(z, "/tcp", 4))
+ continue;
+ if (p - line > 32)
+ continue;
+
+ memcpy(buf, line, p - line);
+ break;
+ }
+ __fclose_ca(f);
}
-static int dns_parse_callback(void *c, int rr, const void *data, int len, const void *packet)
-{
- if (rr != RR_PTR) return 0;
- if (__dn_expand(packet, (const unsigned char *)packet + 512,
- data, c, 256) <= 0)
- *(char *)c = 0;
- return 0;
-
+static int dns_parse_callback(void* c,
+ int rr,
+ const void* data,
+ int len,
+ const void* packet) {
+ if (rr != RR_PTR)
+ return 0;
+ if (__dn_expand(packet, (const unsigned char*)packet + 512, data, c, 256) <=
+ 0)
+ *(char*)c = 0;
+ return 0;
}
-int getnameinfo(const struct sockaddr *restrict sa, socklen_t sl,
- char *restrict node, socklen_t nodelen,
- char *restrict serv, socklen_t servlen,
- int flags)
-{
- char ptr[PTR_MAX];
- char buf[256], num[3*sizeof(int)+1];
- int af = sa->sa_family;
- unsigned char *a;
- unsigned scopeid;
-
- switch (af) {
- case AF_INET:
- a = (void *)&((struct sockaddr_in *)sa)->sin_addr;
- if (sl < sizeof(struct sockaddr_in)) return EAI_FAMILY;
- mkptr4(ptr, a);
- scopeid = 0;
- break;
- case AF_INET6:
- a = (void *)&((struct sockaddr_in6 *)sa)->sin6_addr;
- if (sl < sizeof(struct sockaddr_in6)) return EAI_FAMILY;
- if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12))
- mkptr6(ptr, a);
- else
- mkptr4(ptr, a+12);
- scopeid = ((struct sockaddr_in6 *)sa)->sin6_scope_id;
- break;
- default:
- return EAI_FAMILY;
- }
-
- if (node && nodelen) {
- buf[0] = 0;
- if (!(flags & NI_NUMERICHOST)) {
- reverse_hosts(buf, a, scopeid, af);
- }
- if (!*buf && !(flags & NI_NUMERICHOST)) {
- unsigned char query[18+PTR_MAX], reply[512];
- int qlen = __res_mkquery(0, ptr, 1, RR_PTR,
- 0, 0, 0, query, sizeof query);
- int rlen = __res_send(query, qlen, reply, sizeof reply);
- buf[0] = 0;
- if (rlen > 0)
- __dns_parse(reply, rlen, dns_parse_callback, buf);
- }
- if (!*buf) {
- if (flags & NI_NAMEREQD) return EAI_NONAME;
- inet_ntop(af, a, buf, sizeof buf);
- if (scopeid) {
- char *p = 0, tmp[IF_NAMESIZE+1];
- if (!(flags & NI_NUMERICSCOPE) &&
- (IN6_IS_ADDR_LINKLOCAL(a) ||
- IN6_IS_ADDR_MC_LINKLOCAL(a)))
- p = if_indextoname(scopeid, tmp+1);
- if (!p)
- p = itoa(num, scopeid);
- *--p = '%';
- strcat(buf, p);
- }
- }
- if (strlen(buf) >= nodelen) return EAI_OVERFLOW;
- strcpy(node, buf);
- }
-
- if (serv && servlen) {
- char *p = buf;
- int port = ntohs(((struct sockaddr_in *)sa)->sin_port);
- buf[0] = 0;
- if (!(flags & NI_NUMERICSERV))
- reverse_services(buf, port, flags & NI_DGRAM);
- if (!*p)
- p = itoa(num, port);
- if (strlen(p) >= servlen)
- return EAI_OVERFLOW;
- strcpy(serv, p);
- }
-
- return 0;
+int getnameinfo(const struct sockaddr* restrict sa,
+ socklen_t sl,
+ char* restrict node,
+ socklen_t nodelen,
+ char* restrict serv,
+ socklen_t servlen,
+ int flags) {
+ char ptr[PTR_MAX];
+ char buf[256], num[3 * sizeof(int) + 1];
+ int af = sa->sa_family;
+ unsigned char* a;
+ unsigned scopeid;
+
+ switch (af) {
+ case AF_INET:
+ a = (void*)&((struct sockaddr_in*)sa)->sin_addr;
+ if (sl < sizeof(struct sockaddr_in))
+ return EAI_FAMILY;
+ mkptr4(ptr, a);
+ scopeid = 0;
+ break;
+ case AF_INET6:
+ a = (void*)&((struct sockaddr_in6*)sa)->sin6_addr;
+ if (sl < sizeof(struct sockaddr_in6))
+ return EAI_FAMILY;
+ if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12))
+ mkptr6(ptr, a);
+ else
+ mkptr4(ptr, a + 12);
+ scopeid = ((struct sockaddr_in6*)sa)->sin6_scope_id;
+ break;
+ default:
+ return EAI_FAMILY;
+ }
+
+ if (node && nodelen) {
+ buf[0] = 0;
+ if (!(flags & NI_NUMERICHOST)) {
+ reverse_hosts(buf, a, scopeid, af);
+ }
+ if (!*buf && !(flags & NI_NUMERICHOST)) {
+ unsigned char query[18 + PTR_MAX], reply[512];
+ int qlen = __res_mkquery(0, ptr, 1, RR_PTR, 0, 0, 0, query, sizeof query);
+ int rlen = __res_send(query, qlen, reply, sizeof reply);
+ buf[0] = 0;
+ if (rlen > 0)
+ __dns_parse(reply, rlen, dns_parse_callback, buf);
+ }
+ if (!*buf) {
+ if (flags & NI_NAMEREQD)
+ return EAI_NONAME;
+ inet_ntop(af, a, buf, sizeof buf);
+ if (scopeid) {
+ char *p = 0, tmp[IF_NAMESIZE + 1];
+ if (!(flags & NI_NUMERICSCOPE) &&
+ (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)))
+ p = if_indextoname(scopeid, tmp + 1);
+ if (!p)
+ p = itoa(num, scopeid);
+ *--p = '%';
+ strcat(buf, p);
+ }
+ }
+ if (strlen(buf) >= nodelen)
+ return EAI_OVERFLOW;
+ strcpy(node, buf);
+ }
+
+ if (serv && servlen) {
+ char* p = buf;
+ int port = ntohs(((struct sockaddr_in*)sa)->sin_port);
+ buf[0] = 0;
+ if (!(flags & NI_NUMERICSERV))
+ reverse_services(buf, port, flags & NI_DGRAM);
+ if (!*p)
+ p = itoa(num, port);
+ if (strlen(p) >= servlen)
+ return EAI_OVERFLOW;
+ strcpy(serv, p);
+ }
+
+ return 0;
}
« fusl/arch/aarch64/atomic_arch.h ('K') | « fusl/src/network/getifaddrs.c ('k') | fusl/src/network/getpeername.c » ('j') | no next file with comments »

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