/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2014, 2015 Tobias Klauser * Subject to the GPL, version 2. */ #include #include #include #include #include "hash.h" #include "str.h" #include "lookup.h" #include "xmalloc.h" static bool lookup_initialized[LT_MAX]; static struct hash_table lookup_tables[LT_MAX]; static const char * const lookup_files[] = { [LT_PORTS_UDP] = ETCDIRE_STRING "/udp.conf", [LT_PORTS_TCP] = ETCDIRE_STRING "/tcp.conf", [LT_ETHERTYPES] = ETCDIRE_STRING "/ether.conf", [LT_OUI] = ETCDIRE_STRING "/oui.conf", }; struct lookup_entry { unsigned int id; char *str; struct lookup_entry *next; }; void lookup_init(enum lookup_type which) { FILE *fp; char buff[128], *ptr, *end; const char *file; struct hash_table *table; struct lookup_entry *p; void **pos; bug_on(which >= LT_MAX); if (lookup_initialized[which]) return; table = &lookup_tables[which]; file = lookup_files[which]; fp = fopen(file, "r"); if (!fp) { fprintf(stderr, "Cannot open %s: %s." "Port name resolution won't be available.\n", file, strerror(errno)); return; } memset(buff, 0, sizeof(buff)); while (fgets(buff, sizeof(buff), fp) != NULL) { buff[sizeof(buff) - 1] = 0; ptr = buff; p = xmalloc(sizeof(*p)); p->id = strtol(ptr, &end, 0); /* not a valid line, skip */ if (p->id == 0 && end == ptr) { xfree(p); continue; } ptr = strstr(buff, ", "); /* likewise */ if (!ptr) { xfree(p); continue; } ptr += strlen(", "); ptr = strtrim_right(ptr, '\n'); ptr = strtrim_right(ptr, ' '); p->str = xstrdup(ptr); p->next = NULL; pos = insert_hash(p->id, p, table); if (pos) { p->next = *pos; *pos = p; } memset(buff, 0, sizeof(buff)); } fclose(fp); lookup_initialized[which] = true; } static int __lookup_cleanup_single(void *ptr) { struct lookup_entry *tmp, *p = ptr; if (!ptr) return 0; while ((tmp = p->next)) { xfree(p->str); xfree(p); p = tmp; } xfree(p->str); xfree(p); return 0; } void lookup_cleanup(enum lookup_type which) { struct hash_table *table; bug_on(which >= LT_MAX); if (!lookup_initialized[which]) return; table = &lookup_tables[which]; for_each_hash(table, __lookup_cleanup_single); free_hash(table); lookup_initialized[which] = false; } static inline const char *__lookup_inline(unsigned int id, struct hash_table *tbl) { struct lookup_entry *entry = lookup_hash(id, tbl); while (entry && id != entry->id) entry = entry->next; return (entry && id == entry->id ? entry->str : NULL); } const char *lookup_ether_type(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_ETHERTYPES]); } const char *lookup_port_udp(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_PORTS_UDP]); } const char *lookup_port_tcp(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_PORTS_TCP]); } const char *lookup_vendor(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_OUI]); } xt.git/commit/Documentation?h=nds-private-remove&id=1e1430d5282bc3a572465ef3261eea793d98a653'>Documentation/i2c
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authorJohannes Berg <johannes.berg@intel.com>2016-10-04 09:22:19 +0200
committerJohannes Berg <johannes.berg@intel.com>2016-10-04 09:46:44 +0200
commit1e1430d5282bc3a572465ef3261eea793d98a653 (patch)
tree81c8883606ed2dd821f4509581888505d48631dd /Documentation/i2c
parentbb42f2d13ffcd0baed7547b37d05add51fcd50e1 (diff)
parent9a8dd213d2a38349e5ea2ca8888400952112b45c (diff)
Merge remote-tracking branch 'net-next/master' into mac80211-next
Resolve the merge conflict between Felix's/my and Toke's patches coming into the tree through net and mac80211-next respectively. Most of Felix's changes go away due to Toke's new infrastructure work, my patch changes to "goto begin" (the label wasn't there before) instead of returning NULL so flow control towards drivers is preserved better. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'Documentation/i2c')