diff options
Diffstat (limited to 'libc/inet/getproto.c')
| -rw-r--r-- | libc/inet/getproto.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/libc/inet/getproto.c b/libc/inet/getproto.c index 1d3a5eff5..c9f35f149 100644 --- a/libc/inet/getproto.c +++ b/libc/inet/getproto.c @@ -75,12 +75,22 @@ static pthread_mutex_t mylock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; #define MAXALIASES 35 +#define SBUFSIZE (BUFSIZ + 1 + (sizeof(char *) * MAXALIASES)) static FILE *protof = NULL; static struct protoent proto; -static char static_aliases[BUFSIZ+1 + sizeof(char *)*MAXALIASES]; +static char *static_aliases = NULL; static int proto_stayopen; +static void __initbuf(void) +{ + if (!static_aliases) { + static_aliases = malloc(SBUFSIZE); + if (!static_aliases) + abort(); + } +} + void setprotoent(int f) { LOCK; @@ -183,7 +193,9 @@ again: struct protoent * getprotoent(void) { struct protoent *result; - getprotoent_r(&proto, static_aliases, sizeof(static_aliases), &result); + + __initbuf(); + getprotoent_r(&proto, static_aliases, SBUFSIZE, &result); return result; } @@ -216,7 +228,9 @@ found: struct protoent * getprotobyname(const char *name) { struct protoent *result; - getprotobyname_r(name, &proto, static_aliases, sizeof(static_aliases), &result); + + __initbuf(); + getprotobyname_r(name, &proto, static_aliases, SBUFSIZE, &result); return result; } @@ -242,7 +256,10 @@ int getprotobynumber_r (int proto_num, struct protoent * getprotobynumber(int proto_num) { struct protoent *result; - getprotobynumber_r(proto_num, &proto, static_aliases, sizeof(static_aliases), &result); + + __initbuf(); + getprotobynumber_r(proto_num, &proto, static_aliases, + SBUFSIZE, &result); return result; } |