Some behavioral updates to wget so it acts a bit nicer.
-Erik
This commit is contained in:
Eric Andersen
parent
8c5cb31e1b
commit
7d69701d39
@ -47,6 +47,14 @@ volatile unsigned long statbytes; /* Number of bytes transferred so far. */
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/* For progressmeter() -- number of seconds before xfer considered "stalled" */
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static const int STALLTIME = 5;
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#endif
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void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
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{
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if (output != stdout && do_continue==0) {
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fclose(output);
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unlink(fname_out);
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}
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}
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int wget_main(int argc, char **argv)
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{
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@ -91,9 +99,6 @@ int wget_main(int argc, char **argv)
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if (argc - optind != 1)
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usage(wget_usage);
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if (do_continue && !fname_out)
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error_msg_and_die("cannot specify continue (-c) without a filename (-O)\n");
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/*
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* Use the proxy if necessary.
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*/
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@ -129,6 +134,8 @@ int wget_main(int argc, char **argv)
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curfile=argv[optind];
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#endif
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}
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if (do_continue && !fname_out)
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error_msg_and_die("cannot specify continue (-c) without a filename (-O)\n");
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/*
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@ -147,8 +154,7 @@ int wget_main(int argc, char **argv)
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* Open the output file stream.
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*/
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if (fname_out != (char *)1) {
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if ( (output=fopen(fname_out, (do_continue ? "a" : "w")))
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== NULL)
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if ( (output=fopen(fname_out, (do_continue ? "a" : "w"))) == NULL)
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perror_msg_and_die("fopen(%s)", fname_out);
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} else {
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output = stdout;
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@ -172,6 +178,7 @@ int wget_main(int argc, char **argv)
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fprintf(sfp, "GET http://%s:%d/%s HTTP/1.1\r\n",
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uri_host, uri_port, uri_path);
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fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", uri_host);
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if (do_continue)
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fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
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fprintf(sfp,"Connection: close\r\n\r\n");
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@ -180,6 +187,7 @@ int wget_main(int argc, char **argv)
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* Retrieve HTTP response line and check for "200" status code.
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*/
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if (fgets(buf, sizeof(buf), sfp) == NULL) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("no response from server\n");
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}
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for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
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@ -187,28 +195,29 @@ int wget_main(int argc, char **argv)
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for ( ; isspace(*s) ; ++s)
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;
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switch (atoi(s)) {
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case 0:
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case 200:
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if (!do_continue)
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break;
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error_msg_and_die("server does not support ranges\n");
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break;
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case 206:
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if (do_continue)
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break;
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/*FALLTHRU*/
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default:
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error_msg_and_die("server returned error: %s", buf);
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("server returned error %d: %s", atoi(s), buf);
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}
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/*
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* Retrieve HTTP headers.
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*/
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while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
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if (strcmp(buf, "content-length") == 0) {
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if (strcasecmp(buf, "content-length") == 0) {
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filesize = atol(s);
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got_clen = 1;
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continue;
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}
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if (strcmp(buf, "transfer-encoding") == 0) {
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if (strcasecmp(buf, "transfer-encoding") == 0) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("server wants to do %s transfer encoding\n", s);
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continue;
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}
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@ -511,7 +520,7 @@ progressmeter(int flag)
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: wget.c,v 1.20 2001/01/24 18:44:54 andersen Exp $
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* $Id: wget.c,v 1.21 2001/01/24 20:28:35 andersen Exp $
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*/
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33
wget.c
33
wget.c
@ -47,6 +47,14 @@ volatile unsigned long statbytes; /* Number of bytes transferred so far. */
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/* For progressmeter() -- number of seconds before xfer considered "stalled" */
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static const int STALLTIME = 5;
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#endif
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void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
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{
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if (output != stdout && do_continue==0) {
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fclose(output);
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unlink(fname_out);
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}
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}
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int wget_main(int argc, char **argv)
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{
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@ -91,9 +99,6 @@ int wget_main(int argc, char **argv)
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if (argc - optind != 1)
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usage(wget_usage);
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if (do_continue && !fname_out)
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error_msg_and_die("cannot specify continue (-c) without a filename (-O)\n");
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/*
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* Use the proxy if necessary.
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*/
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@ -129,6 +134,8 @@ int wget_main(int argc, char **argv)
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curfile=argv[optind];
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#endif
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}
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if (do_continue && !fname_out)
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error_msg_and_die("cannot specify continue (-c) without a filename (-O)\n");
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/*
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@ -147,8 +154,7 @@ int wget_main(int argc, char **argv)
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* Open the output file stream.
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*/
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if (fname_out != (char *)1) {
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if ( (output=fopen(fname_out, (do_continue ? "a" : "w")))
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== NULL)
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if ( (output=fopen(fname_out, (do_continue ? "a" : "w"))) == NULL)
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perror_msg_and_die("fopen(%s)", fname_out);
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} else {
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output = stdout;
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@ -172,6 +178,7 @@ int wget_main(int argc, char **argv)
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fprintf(sfp, "GET http://%s:%d/%s HTTP/1.1\r\n",
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uri_host, uri_port, uri_path);
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fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", uri_host);
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if (do_continue)
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fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
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fprintf(sfp,"Connection: close\r\n\r\n");
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@ -180,6 +187,7 @@ int wget_main(int argc, char **argv)
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* Retrieve HTTP response line and check for "200" status code.
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*/
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if (fgets(buf, sizeof(buf), sfp) == NULL) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("no response from server\n");
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}
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for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
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@ -187,28 +195,29 @@ int wget_main(int argc, char **argv)
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for ( ; isspace(*s) ; ++s)
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;
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switch (atoi(s)) {
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case 0:
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case 200:
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if (!do_continue)
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break;
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error_msg_and_die("server does not support ranges\n");
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break;
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case 206:
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if (do_continue)
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break;
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/*FALLTHRU*/
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default:
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error_msg_and_die("server returned error: %s", buf);
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("server returned error %d: %s", atoi(s), buf);
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}
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/*
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* Retrieve HTTP headers.
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*/
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while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
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if (strcmp(buf, "content-length") == 0) {
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if (strcasecmp(buf, "content-length") == 0) {
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filesize = atol(s);
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got_clen = 1;
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continue;
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}
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if (strcmp(buf, "transfer-encoding") == 0) {
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if (strcasecmp(buf, "transfer-encoding") == 0) {
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close_and_delete_outfile(output, fname_out, do_continue);
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error_msg_and_die("server wants to do %s transfer encoding\n", s);
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continue;
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}
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@ -511,7 +520,7 @@ progressmeter(int flag)
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: wget.c,v 1.20 2001/01/24 18:44:54 andersen Exp $
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* $Id: wget.c,v 1.21 2001/01/24 20:28:35 andersen Exp $
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*/
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