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-rw-r--r--hesiod/hesiod.c35
1 files changed, 20 insertions, 15 deletions
diff --git a/hesiod/hesiod.c b/hesiod/hesiod.c
index 8e95dfb..076b6e7 100644
--- a/hesiod/hesiod.c
+++ b/hesiod/hesiod.c
@@ -67,7 +67,11 @@ static const char rcsid[] = "$Id$";
static int read_config_file(struct hesiod_p *ctx, const char *filename);
static char **get_txt_records(struct hesiod_p *ctx, int class,
const char *name);
+#ifdef _LIBC
+# define cistrcmp(s1, s2) strcasecmp (s1, s2)
+#else
static int cistrcmp(const char *s1, const char *s2);
+#endif
/* This function is called to initialize a hesiod_p. */
int hesiod_init(void **context)
@@ -85,7 +89,7 @@ int hesiod_init(void **context)
if (read_config_file(ctx, configname) >= 0)
{
/* The default rhs can be overridden by an environment variable. */
- p = __secure_getenv("HES_DOMAIN");
+ p = getenv("HES_DOMAIN");
if (p)
{
if (ctx->rhs)
@@ -133,11 +137,11 @@ void hesiod_end(void *context)
char *hesiod_to_bind(void *context, const char *name, const char *type)
{
struct hesiod_p *ctx = (struct hesiod_p *) context;
- char bindname[MAXDNAME], *p, *ret, **rhs_list = NULL;
+ char bindname[MAXDNAME], *p, *endp, *ret, **rhs_list = NULL;
const char *rhs;
- int len;
-
- strcpy(bindname, name);
+ size_t len;
+
+ endp = stpcpy(bindname, name);
/* Find the right right hand side to use, possibly truncating bindname. */
p = strchr(bindname, '@');
@@ -161,7 +165,7 @@ char *hesiod_to_bind(void *context, const char *name, const char *type)
rhs = ctx->rhs;
/* See if we have enough room. */
- len = strlen(bindname) + 1 + strlen(type);
+ len = (endp - bindname) + 1 + strlen(type);
if (ctx->lhs)
len += strlen(ctx->lhs) + ((ctx->lhs[0] != '.') ? 1 : 0);
len += strlen(rhs) + ((rhs[0] != '.') ? 1 : 0);
@@ -174,24 +178,23 @@ char *hesiod_to_bind(void *context, const char *name, const char *type)
}
/* Put together the rest of the domain. */
- strcat(bindname, ".");
- strcat(bindname, type);
+ endp = __stpcpy (__stpcpy (endp, "."), type);
if (ctx->lhs)
{
if (ctx->lhs[0] != '.')
- strcat(bindname, ".");
- strcat(bindname, ctx->lhs);
+ endp = __stpcpy (endp, ".");
+ endp = __stpcpy (endp, ctx->lhs);
}
if (rhs[0] != '.')
- strcat(bindname, ".");
- strcat(bindname, rhs);
+ endp = __stpcpy (endp, ".");
+ endp = __stpcpy (endp, rhs);
/* rhs_list is no longer needed, since we're done with rhs. */
if (rhs_list)
hesiod_free_list(context, rhs_list);
/* Make a copy of the result and return it to the caller. */
- ret = malloc(strlen(bindname) + 1);
+ ret = malloc((endp - bindname) + 1);
if (!ret)
{
__set_errno (ENOMEM);
@@ -277,7 +280,7 @@ static int read_config_file(struct hesiod_p *ctx, const char *filename)
while(*p != ' ' && *p != '\t' && *p != '=')
p++;
*p++ = 0;
-
+
while(isspace(*p) || *p == '=')
p++;
data = p;
@@ -325,7 +328,7 @@ static int read_config_file(struct hesiod_p *ctx, const char *filename)
}
return 0;
-}
+}
/* Given a DNS class and a DNS name, do a lookup for TXT records, and
* return a list of them.
@@ -459,6 +462,7 @@ static char **get_txt_records(struct hesiod_p *ctx, int qclass,
return list;
}
+#ifndef _LIBC
static int cistrcmp(const char *s1, const char *s2)
{
while (*s1 && tolower(*s1) == tolower(*s2))
@@ -468,3 +472,4 @@ static int cistrcmp(const char *s1, const char *s2)
}
return tolower(*s1) - tolower(*s2);
}
+#endif