114 lines
2.9 KiB
Diff
114 lines
2.9 KiB
Diff
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--- dhcp-4.2.2/client/clparse.c
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+++ dhcp-4.2.2/client/clparse.c
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@@ -182,6 +182,10 @@ isc_result_t read_client_conf ()
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#endif
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}
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+ /* Read any extra configuration from stdin */
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+ extern int read_client_conf_stdin (struct interface_info *ip, struct client_config *client);
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+ read_client_conf_stdin (NULL, &top_level_config);
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+
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/* Set up state and config structures for clients that don't
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have per-interface configuration statements. */
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config = (struct client_config *)0;
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@@ -211,23 +215,13 @@ isc_result_t read_client_conf ()
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return status;
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}
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-int read_client_conf_file (const char *name, struct interface_info *ip,
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+int read_client_conf_actual (struct parse *cfile, struct interface_info *ip,
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struct client_config *client)
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{
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- int file;
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- struct parse *cfile;
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const char *val;
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int token;
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isc_result_t status;
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- if ((file = open (name, O_RDONLY)) < 0)
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- return uerr2isc (errno);
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-
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- cfile = NULL;
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- status = new_parse(&cfile, file, NULL, 0, path_dhclient_conf, 0);
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- if (status != ISC_R_SUCCESS || cfile == NULL)
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- return status;
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-
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do {
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token = peek_token (&val, (unsigned *)0, cfile);
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if (token == END_OF_FILE)
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@@ -238,10 +232,74 @@ int read_client_conf_file (const char *name, struct interface_info *ip,
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status = (cfile -> warnings_occurred
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? DHCP_R_BADPARSE
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: ISC_R_SUCCESS);
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+ return status;
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+}
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+
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+int read_client_conf_file (const char *name, struct interface_info *ip,
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+ struct client_config *client)
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+{
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+ int file;
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+ struct parse *cfile;
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+ isc_result_t status;
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+
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+ if ((file = open (name, O_RDONLY)) < 0)
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+ return uerr2isc (errno);
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+
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+ cfile = (struct parse *)0;
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+ new_parse (&cfile, file, (char *)0, 0, path_dhclient_conf, 0);
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+ status = read_client_conf_actual(cfile, ip, client);
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end_parse (&cfile);
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return status;
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}
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+int read_client_conf_stdin (struct interface_info *ip,
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+ struct client_config *client)
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+{
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+ int file;
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+ char *buffer = NULL, *p;
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+ unsigned buflen, len = 0;
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+ struct parse *cfile;
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+ size_t bytes;
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+ isc_result_t status;
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+
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+ file = fileno(stdin);
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+ if (isatty (file))
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+ return ISC_R_NOTFOUND;
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+ if (fcntl (file, F_SETFL, O_NONBLOCK) < 0)
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+ log_fatal ("could not set stdin to non blocking!");
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+
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+ buflen = BUFSIZ;
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+ buffer = malloc (BUFSIZ + 1);
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+ p = buffer;
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+ do {
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+ bytes = read (file, p, BUFSIZ);
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+ if (bytes == 0)
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+ break;
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+ if (bytes == -1)
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+ log_fatal ("failed to read stdin!");
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+ if (bytes >= BUFSIZ) {
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+ buflen += BUFSIZ;
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+ len += BUFSIZ;
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+ buffer = realloc (buffer, buflen + 1);
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+ if (!buffer)
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+ log_fatal ("not enough buffer to read stdin!");
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+ p = buffer + len;
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+ } else {
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+ len += bytes;
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+ break;
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+ }
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+ } while(1);
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+ buffer[len] = '\0';
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+
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+ cfile = (struct parse *)0;
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+ status = new_parse (&cfile, -1, buffer, len, "stdin", 0);
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+ if (status == ISC_R_SUCCESS) {
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+ status = read_client_conf_actual (cfile, ip, client);
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+ end_parse (&cfile);
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+ }
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+ free(buffer);
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+ return status;
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+}
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/* lease-file :== client-lease-statements END_OF_FILE
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client-lease-statements :== <nil>
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