X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fwget.c;h=fdcc68df31ffcb5459e03af70e4445861c4770b8;hb=c44bc986b738977c5cd9741d9752a41ac022602f;hp=02adc55207b8cd8802ce2dd78f647f4fab7b51d8;hpb=b520e083e0507f15e05230733a760e52dcd9f133;p=oweals%2Fbusybox.git diff --git a/networking/wget.c b/networking/wget.c index 02adc5520..fdcc68df3 100644 --- a/networking/wget.c +++ b/networking/wget.c @@ -1,32 +1,22 @@ /* vi: set sw=4 ts=4: */ /* - * wget - retrieve a file using HTTP + * wget - retrieve a file using HTTP or FTP * - * Chip Rosenthal - * Covad Communications - * - * - * Note: According to RFC2616 section 3.6.1, "All HTTP/1.1 applications - * MUST be able to receive and decode the "chunked" transfer-coding, - * and MUST ignore chunk-extension extensions they do not understand." - * This prevents this particular wget app from completely RFC compliant, - * and as such, prevents it from being used as a general purpose web browser... - * - * This is a design decision, since it makes the code smaller. + * Chip Rosenthal Covad Communications * */ -#include "busybox.h" #include +#include #include #include #include #include +#include #include #include #include -#include #include #include #include @@ -34,221 +24,589 @@ #include #include +#include + +#include "busybox.h" + +struct host_info { + char *host; + int port; + char *path; + int is_ftp; + char *user; +}; -void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path); -FILE *open_socket(char *host, int port); -char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc); -void progressmeter(int flag); +static void parse_url(char *url, struct host_info *h); +static FILE *open_socket(struct sockaddr_in *s_in); +static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc); +static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf); /* Globals (can be accessed from signal handlers */ static off_t filesize = 0; /* content-length of the file */ -#ifdef BB_FEATURE_STATUSBAR +static int chunked = 0; /* chunked transfer encoding */ +#ifdef CONFIG_FEATURE_WGET_STATUSBAR +static void progressmeter(int flag); static char *curfile; /* Name of current file being transferred. */ static struct timeval start; /* Time a transfer started. */ -volatile unsigned long statbytes; /* Number of bytes transferred so far. */ +static volatile unsigned long statbytes = 0; /* Number of bytes transferred so far. */ /* For progressmeter() -- number of seconds before xfer considered "stalled" */ -#define STALLTIME 5 +static const int STALLTIME = 5; +#endif + +static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue) +{ + if (output != stdout && do_continue==0) { + fclose(output); + unlink(fname_out); + } +} + +/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the + * number of elements read, and a short count if an eof or non-interrupt + * error is encountered. */ +static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream) +{ + size_t ret = 0; + + do { + clearerr(stream); + ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream); + } while (ret < nmemb && ferror(stream) && errno == EINTR); + + return ret; +} + +/* Write NMEMB elements of SIZE bytes from PTR to STREAM. Returns the + * number of elements written, and a short count if an eof or non-interrupt + * error is encountered. */ +static size_t safe_fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream) +{ + size_t ret = 0; + + do { + clearerr(stream); + ret += fwrite((char *)ptr + (ret * size), size, nmemb - ret, stream); + } while (ret < nmemb && ferror(stream) && errno == EINTR); + + return ret; +} + +/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM. + * Returns S, or NULL if an eof or non-interrupt error is encountered. */ +static char *safe_fgets(char *s, int size, FILE *stream) +{ + char *ret; + + do { + clearerr(stream); + ret = fgets(s, size, stream); + } while (ret == NULL && ferror(stream) && errno == EINTR); + + return ret; +} + +#define close_delete_and_die(s...) { \ + close_and_delete_outfile(output, fname_out, do_continue); \ + bb_error_msg_and_die(s); } + + +#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION +/* + * Base64-encode character string + * oops... isn't something similar in uuencode.c? + * XXX: It would be better to use already existing code + */ +static char *base64enc(unsigned char *p, char *buf, int len) { + + char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + "0123456789+/"; + char *s = buf; + + while(*p) { + if (s >= buf+len-4) + bb_error_msg_and_die("buffer overflow"); + *(s++) = al[(*p >> 2) & 0x3F]; + *(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)]; + *s = *(s+1) = '='; + *(s+2) = 0; + if (! *(++p)) break; + *(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)]; + if (! *(++p)) break; + *(s++) = al[*(p++) & 0x3F]; + } + + return buf; +} #endif +#define WGET_OPT_CONTINUE 1 +#define WGET_OPT_QUIET 2 +#define WGET_OPT_PASSIVE 4 +#define WGET_OPT_OUTNAME 8 +#define WGET_OPT_HEADER 16 +#define WGET_OPT_PREFIX 32 +#define WGET_OPT_PROXY 64 + +static const struct option wget_long_options[] = { + { "continue", 0, NULL, 'c' }, + { "quiet", 0, NULL, 'q' }, + { "passive-ftp", 0, NULL, 139 }, + { "output-document", 1, NULL, 'O' }, + { "header", 1, NULL, 131 }, + { "directory-prefix",1, NULL, 'P' }, + { "proxy", 1, NULL, 'Y' }, + { 0, 0, 0, 0 } +}; + int wget_main(int argc, char **argv) { - FILE *sfp; /* socket to web server */ - char *uri_host, *uri_path; /* parsed from command line url */ - int uri_port; + int n, try=5, status; + unsigned long opt; + int port; + char *proxy = 0; + char *dir_prefix=NULL; char *s, buf[512]; - int n; - - char *fname_out = NULL; /* where to direct output (-O) */ - int do_continue = 0; /* continue a prev transfer (-c) */ - long beg_range = 0L; /* range at which continue begins */ - int got_clen = 0; /* got content-length: from server */ - FILE *output; /* socket to web server */ + struct stat sbuf; + char extra_headers[1024]; + char *extra_headers_ptr = extra_headers; + int extra_headers_left = sizeof(extra_headers); + struct host_info server, target; + struct sockaddr_in s_in; + llist_t *headers_llist = NULL; + + FILE *sfp = NULL; /* socket to web/ftp server */ + FILE *dfp = NULL; /* socket to ftp server (data) */ + char *fname_out = NULL; /* where to direct output (-O) */ + int do_continue = 0; /* continue a prev transfer (-c) */ + long beg_range = 0L; /* range at which continue begins */ + int got_clen = 0; /* got content-length: from server */ + FILE *output; /* socket to web server */ + int quiet_flag = FALSE; /* Be verry, verry quiet... */ + int use_proxy = 1; /* Use proxies if env vars are set */ + char *proxy_flag = "on"; /* Use proxies if env vars are set */ /* * Crack command line. */ - while ((n = getopt(argc, argv, "cO:")) != EOF) { - switch (n) { - case 'c': - ++do_continue; - break; - case 'O': - fname_out = (strcmp(optarg, "-") == 0 ? NULL : optarg); - break; - default: - usage(wget_usage); + bb_opt_complementally = "-1:\203::"; + bb_applet_long_options = wget_long_options; + opt = bb_getopt_ulflags(argc, argv, "cq\213O:\203:P:Y:", + &fname_out, &headers_llist, + &dir_prefix, &proxy_flag); + if (opt & WGET_OPT_CONTINUE) { + ++do_continue; + } + if (opt & WGET_OPT_QUIET) { + quiet_flag = TRUE; + } + if (strcmp(proxy_flag, "off") == 0) { + /* Use the proxy if necessary. */ + use_proxy = 0; + } + if (opt & WGET_OPT_HEADER) { + while (headers_llist) { + int arglen = strlen(headers_llist->data); + if (extra_headers_left - arglen - 2 <= 0) + bb_error_msg_and_die("extra_headers buffer too small(need %i)", extra_headers_left - arglen); + strcpy(extra_headers_ptr, headers_llist->data); + extra_headers_ptr += arglen; + extra_headers_left -= ( arglen + 2 ); + *extra_headers_ptr++ = '\r'; + *extra_headers_ptr++ = '\n'; + *(extra_headers_ptr + 1) = 0; + headers_llist = headers_llist->link; } } - if (argc - optind != 1) - usage(wget_usage); + parse_url(argv[optind], &target); + server.host = target.host; + server.port = target.port; + + /* + * Use the proxy if necessary. + */ + if (use_proxy) { + proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy"); + if (proxy && *proxy) { + parse_url(bb_xstrdup(proxy), &server); + } else { + use_proxy = 0; + } + } /* Guess an output filename */ if (!fname_out) { - fname_out = -#ifdef BB_FEATURE_STATUSBAR - curfile = + // Dirty hack. Needed because bb_get_last_path_component + // will destroy trailing / by storing '\0' in last byte! + if(*target.path && target.path[strlen(target.path)-1]!='/') { + fname_out = +#ifdef CONFIG_FEATURE_WGET_STATUSBAR + curfile = +#endif + bb_get_last_path_component(target.path); + } + if (fname_out==NULL || strlen(fname_out)<1) { + fname_out = +#ifdef CONFIG_FEATURE_WGET_STATUSBAR + curfile = #endif - get_last_path_component(argv[optind]); -#ifdef BB_FEATURE_STATUSBAR + "index.html"; + } + if (dir_prefix != NULL) + fname_out = concat_path_file(dir_prefix, fname_out); +#ifdef CONFIG_FEATURE_WGET_STATUSBAR } else { - curfile=argv[optind]; + curfile = bb_get_last_path_component(fname_out); #endif } - - if (do_continue && !fname_out) - fatalError("wget: cannot specify continue (-c) without a filename (-O)\n"); - /* - * Parse url into components. - */ - parse_url(argv[optind], &uri_host, &uri_port, &uri_path); + bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)"); - /* - * Open socket to server. - */ - sfp = open_socket(uri_host, uri_port); /* - * Open the output stream. + * Open the output file stream. */ - if (fname_out != NULL) { - if ( (output=fopen(fname_out, (do_continue ? "a" : "w"))) - == NULL) - fatalError("wget: freopen(%s): %s\n", fname_out, strerror(errno)); - } else { - output=stdout; + if (strcmp(fname_out, "-") == 0) { + output = stdout; + quiet_flag = TRUE; + } else { + output = bb_xfopen(fname_out, (do_continue ? "a" : "w")); } /* * Determine where to start transfer. */ if (do_continue) { - struct stat sbuf; if (fstat(fileno(output), &sbuf) < 0) - fatalError("wget: fstat(): %s\n", strerror(errno)); + bb_perror_msg_and_die("fstat()"); if (sbuf.st_size > 0) beg_range = sbuf.st_size; else do_continue = 0; } - /* - * Send HTTP request. - */ - fprintf(sfp, "GET %s HTTP/1.1\r\nHost: %s\r\n", uri_path, uri_host); - if (do_continue) - fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range); - fputs("Connection: close\r\n\r\n", sfp); + /* We want to do exactly _one_ DNS lookup, since some + * sites (i.e. ftp.us.debian.org) use round-robin DNS + * and we want to connect to only one IP... */ + bb_lookup_host(&s_in, server.host); + s_in.sin_port = server.port; + if (quiet_flag==FALSE) { + fprintf(stdout, "Connecting to %s[%s]:%d\n", + server.host, inet_ntoa(s_in.sin_addr), ntohs(server.port)); + } + + if (use_proxy || !target.is_ftp) { + /* + * HTTP session + */ + do { + got_clen = chunked = 0; + + if (! --try) + close_delete_and_die("too many redirections"); + + /* + * Open socket to http server + */ + if (sfp) fclose(sfp); + sfp = open_socket(&s_in); + + /* + * Send HTTP request. + */ + if (use_proxy) { + const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n"; +#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL + if (strchr (target.host, ':')) + format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n"; +#endif + fprintf(sfp, format, + target.is_ftp ? "f" : "ht", target.host, + ntohs(target.port), target.path); + } else { + fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path); + } + + fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host); + +#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION + if (target.user) { + fprintf(sfp, "Authorization: Basic %s\r\n", + base64enc((unsigned char*)target.user, buf, sizeof(buf))); + } + if (use_proxy && server.user) { + fprintf(sfp, "Proxy-Authorization: Basic %s\r\n", + base64enc((unsigned char*)server.user, buf, sizeof(buf))); + } +#endif - /* - * Retrieve HTTP response line and check for "200" status code. - */ - if (fgets(buf, sizeof(buf), sfp) == NULL) - fatalError("wget: no response from server\n"); - for (s = buf ; *s != '\0' && !isspace(*s) ; ++s) - ; - for ( ; isspace(*s) ; ++s) - ; - switch (atoi(s)) { - case 200: - if (!do_continue) - break; - fatalError("wget: server does not support ranges\n"); - case 206: if (do_continue) - break; - /*FALLTHRU*/ - default: - fatalError("wget: server returned error: %s", buf); + fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range); + if(extra_headers_left < sizeof(extra_headers)) + fputs(extra_headers,sfp); + fprintf(sfp,"Connection: close\r\n\r\n"); + + /* + * Retrieve HTTP response line and check for "200" status code. + */ +read_response: + if (fgets(buf, sizeof(buf), sfp) == NULL) + close_delete_and_die("no response from server"); + + for (s = buf ; *s != '\0' && !isspace(*s) ; ++s) + ; + for ( ; isspace(*s) ; ++s) + ; + switch (status = atoi(s)) { + case 0: + case 100: + while (gethdr(buf, sizeof(buf), sfp, &n) != NULL); + goto read_response; + case 200: + if (do_continue && output != stdout) + output = freopen(fname_out, "w", output); + do_continue = 0; + break; + case 300: /* redirection */ + case 301: + case 302: + case 303: + break; + case 206: + if (do_continue) + break; + /*FALLTHRU*/ + default: + chomp(buf); + close_delete_and_die("server returned error %d: %s", atoi(s), buf); + } + + /* + * Retrieve HTTP headers. + */ + while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) { + if (strcasecmp(buf, "content-length") == 0) { + unsigned long value; + if (safe_strtoul(s, &value)) { + close_delete_and_die("content-length %s is garbage", s); + } + filesize = value; + got_clen = 1; + continue; + } + if (strcasecmp(buf, "transfer-encoding") == 0) { + if (strcasecmp(s, "chunked") == 0) { + chunked = got_clen = 1; + } else { + close_delete_and_die("server wants to do %s transfer encoding", s); + } + } + if (strcasecmp(buf, "location") == 0) { + if (s[0] == '/') + target.path = bb_xstrdup(s+1); + else { + parse_url(bb_xstrdup(s), &target); + if (use_proxy == 0) { + server.host = target.host; + server.port = target.port; + } + bb_lookup_host(&s_in, server.host); + s_in.sin_port = server.port; + break; + } + } + } + } while(status >= 300); + + dfp = sfp; } + else + { + /* + * FTP session + */ + if (! target.user) + target.user = bb_xstrdup("anonymous:busybox@"); + + sfp = open_socket(&s_in); + if (ftpcmd(NULL, NULL, sfp, buf) != 220) + close_delete_and_die("%s", buf+4); + + /* + * Splitting username:password pair, + * trying to log in + */ + s = strchr(target.user, ':'); + if (s) + *(s++) = '\0'; + switch(ftpcmd("USER ", target.user, sfp, buf)) { + case 230: + break; + case 331: + if (ftpcmd("PASS ", s, sfp, buf) == 230) + break; + /* FALLTHRU (failed login) */ + default: + close_delete_and_die("ftp login: %s", buf+4); + } - /* - * Retrieve HTTP headers. - */ - while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) { - if (strcmp(buf, "content-length") == 0) { - filesize = atol(s); + ftpcmd("CDUP", NULL, sfp, buf); + ftpcmd("TYPE I", NULL, sfp, buf); + + /* + * Querying file size + */ + if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) { + unsigned long value; + if (safe_strtoul(buf+4, &value)) { + close_delete_and_die("SIZE value is garbage"); + } + filesize = value; got_clen = 1; - continue; } - if (strcmp(buf, "transfer-encoding") == 0) { - fatalError("wget: server wants to do %s transfer encoding\n", s); - continue; + + /* + * Entering passive mode + */ + if (ftpcmd("PASV", NULL, sfp, buf) != 227) + close_delete_and_die("PASV: %s", buf+4); + s = strrchr(buf, ','); + *s = 0; + port = atoi(s+1); + s = strrchr(buf, ','); + port += atoi(s+1) * 256; + s_in.sin_port = htons(port); + dfp = open_socket(&s_in); + + if (do_continue) { + sprintf(buf, "REST %ld", beg_range); + if (ftpcmd(buf, NULL, sfp, buf) != 350) { + if (output != stdout) + output = freopen(fname_out, "w", output); + do_continue = 0; + } else + filesize -= beg_range; } + + if (ftpcmd("RETR /", target.path, sfp, buf) > 150) + close_delete_and_die("RETR: %s", buf+4); + } + /* - * Retrieve HTTP body. + * Retrieve file */ -#ifdef BB_FEATURE_STATUSBAR - statbytes=0; - progressmeter(-1); + if (chunked) { + fgets(buf, sizeof(buf), dfp); + filesize = strtol(buf, (char **) NULL, 16); + } +#ifdef CONFIG_FEATURE_WGET_STATUSBAR + if (quiet_flag==FALSE) + progressmeter(-1); +#endif + do { + while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, ((chunked || got_clen) && (filesize < sizeof(buf)) ? filesize : sizeof(buf)), dfp)) > 0) { + if (safe_fwrite(buf, 1, n, output) != n) { + bb_perror_msg_and_die("write error"); + } +#ifdef CONFIG_FEATURE_WGET_STATUSBAR + statbytes+=n; #endif - while (filesize > 0 && (n = fread(buf, 1, sizeof(buf), sfp)) > 0) { - fwrite(buf, 1, n, output); -#ifdef BB_FEATURE_STATUSBAR - statbytes+=n; + if (got_clen) { + filesize -= n; + } + } + + if (chunked) { + safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */ + safe_fgets(buf, sizeof(buf), dfp); + filesize = strtol(buf, (char **) NULL, 16); + if (filesize==0) { + chunked = 0; /* all done! */ + } + } + + if (n == 0 && ferror(dfp)) { + bb_perror_msg_and_die("network read error"); + } + } while (chunked); +#ifdef CONFIG_FEATURE_WGET_STATUSBAR + if (quiet_flag==FALSE) progressmeter(1); #endif - if (got_clen) - filesize -= n; + if ((use_proxy == 0) && target.is_ftp) { + fclose(dfp); + if (ftpcmd(NULL, NULL, sfp, buf) != 226) + bb_error_msg_and_die("ftp error: %s", buf+4); + ftpcmd("QUIT", NULL, sfp, buf); } - if (n == 0 && ferror(sfp)) - fatalError("wget: network read error: %s", strerror(errno)); - - exit(0); + exit(EXIT_SUCCESS); } -void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path) +void parse_url(char *url, struct host_info *h) { - char *s, *h; + char *cp, *sp, *up, *pp; + + if (strncmp(url, "http://", 7) == 0) { + h->port = bb_lookup_port("http", "tcp", 80); + h->host = url + 7; + h->is_ftp = 0; + } else if (strncmp(url, "ftp://", 6) == 0) { + h->port = bb_lookup_port("ftp", "tfp", 21); + h->host = url + 6; + h->is_ftp = 1; + } else + bb_error_msg_and_die("not an http or ftp url: %s", url); - *uri_port = 80; + sp = strchr(h->host, '/'); + if (sp) { + *sp++ = '\0'; + h->path = sp; + } else + h->path = bb_xstrdup(""); + + up = strrchr(h->host, '@'); + if (up != NULL) { + h->user = h->host; + *up++ = '\0'; + h->host = up; + } else + h->user = NULL; - if (strncmp(url, "http://", 7) != 0) - fatalError("wget: not an http url: %s\n", url); + pp = h->host; - /* pull the host portion to the front of the buffer */ - for (s = url, h = url+7 ; *h != '/' ; ++h) { - if (*h == '\0') - fatalError("wget: cannot parse url: %s\n", url); - if (*h == ':') { - *uri_port = atoi(h+1); - *h = '\0'; +#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL + if (h->host[0] == '[') { + char *ep; + + ep = h->host + 1; + while (*ep == ':' || isxdigit (*ep)) + ep++; + if (*ep == ']') { + h->host++; + *ep = '\0'; + pp = ep + 1; } - *s++ = *h; } - *s = '\0'; - *uri_host = url; - *uri_path = h; +#endif + + cp = strchr(pp, ':'); + if (cp != NULL) { + *cp++ = '\0'; + h->port = htons(atoi(cp)); + } } -FILE *open_socket(char *host, int port) +FILE *open_socket(struct sockaddr_in *s_in) { - struct sockaddr_in sin; - struct hostent *hp; - int fd; FILE *fp; - memzero(&sin, sizeof(sin)); - sin.sin_family = AF_INET; - if ((hp = (struct hostent *) gethostbyname(host)) == NULL) - fatalError("wget: cannot resolve %s\n", host); - memcpy(&sin.sin_addr, hp->h_addr_list[0], hp->h_length); - sin.sin_port = htons(port); - - /* - * Get the server onto a stdio stream. - */ - if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) - fatalError("wget: socket(): %s\n", strerror(errno)); - if (connect(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0) - fatalError("wget: connect(%s): %s\n", host, strerror(errno)); - if ((fp = fdopen(fd, "r+")) == NULL) - fatalError("wget: fdopen(): %s\n", strerror(errno)); + fp = fdopen(xconnect(s_in), "r+"); + if (fp == NULL) + bb_perror_msg_and_die("fdopen()"); return fp; } @@ -277,7 +635,7 @@ char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc) /* verify we are at the end of the header name */ if (*s != ':') - fatalError("wget: bad header line: %s\n", buf); + bb_error_msg_and_die("bad header line: %s", buf); /* locate the start of the header value */ for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s) @@ -301,57 +659,45 @@ char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc) return hdrval; } -#ifdef BB_FEATURE_STATUSBAR -/* Stuff below is from BSD rcp util.c, as added to openshh. */ +static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf) +{ + if (s1) { + if (!s2) s2=""; + fprintf(fp, "%s%s\r\n", s1, s2); + fflush(fp); + } -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. + do { + char *buf_ptr; + + if (fgets(buf, 510, fp) == NULL) { + bb_perror_msg_and_die("fgets()"); + } + buf_ptr = strstr(buf, "\r\n"); + if (buf_ptr) { + *buf_ptr = '\0'; + } + } while (! isdigit(buf[0]) || buf[3] != ' '); + + return atoi(buf); +} + +#ifdef CONFIG_FEATURE_WGET_STATUSBAR +/* Stuff below is from BSD rcp util.c, as added to openshh. + * Original copyright notice is retained at the end of this file. * - * $Id: wget.c,v 1.5 2000/10/03 00:21:45 andersen Exp $ */ -int +static int getttywidth(void) { - struct winsize winsize; - - if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1) - return (winsize.ws_col ? winsize.ws_col : 80); - else - return (80); + int width=0; + get_terminal_width_height(0, &width, NULL); + return (width); } -void +static void updateprogressmeter(int ignore) { int save_errno = errno; @@ -360,7 +706,7 @@ updateprogressmeter(int ignore) errno = save_errno; } -void +static void alarmtimer(int wait) { struct itimerval itv; @@ -372,12 +718,12 @@ alarmtimer(int wait) } -void +static void progressmeter(int flag) { static const char prefixes[] = " KMGTP"; static struct timeval lastupdate; - static off_t lastsize; + static off_t lastsize, totalsize; struct timeval now, td, wait; off_t cursize, abbrevsize; double elapsed; @@ -388,12 +734,13 @@ progressmeter(int flag) (void) gettimeofday(&start, (struct timezone *) 0); lastupdate = start; lastsize = 0; + totalsize = filesize; /* as filesize changes.. */ } (void) gettimeofday(&now, (struct timezone *) 0); cursize = statbytes; - if (filesize != 0) { - ratio = 100.0 * cursize / filesize; + if (totalsize != 0 && !chunked) { + ratio = 100.0 * cursize / totalsize; ratio = MAX(ratio, 0); ratio = MIN(ratio, 100); } else @@ -433,14 +780,14 @@ progressmeter(int flag) timersub(&now, &start, &td); elapsed = td.tv_sec + (td.tv_usec / 1000000.0); - if (statbytes <= 0 || elapsed <= 0.0 || cursize > filesize) { - snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), - " --:-- ETA"); - } else if (wait.tv_sec >= STALLTIME) { + if (wait.tv_sec >= STALLTIME) { snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " - stalled -"); + } else if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalsize || chunked) { + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + " --:-- ETA"); } else { - remaining = (int) (filesize / (statbytes / elapsed) - elapsed); + remaining = (int) (totalsize / (statbytes / elapsed) - elapsed); i = remaining / 3600; if (i) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), @@ -452,7 +799,7 @@ progressmeter(int flag) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%02d:%02d ETA", i / 60, i % 60); } - write(fileno(stdout), buf, strlen(buf)); + write(STDERR_FILENO, buf, strlen(buf)); if (flag == -1) { struct sigaction sa; @@ -464,14 +811,45 @@ progressmeter(int flag) } else if (flag == 1) { alarmtimer(0); statbytes = 0; + putc('\n', stderr); } } #endif -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ +/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff, + * much of which was blatantly stolen from openssh. */ + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. + * + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id: wget.c,v 1.75 2004/10/08 08:27:40 andersen Exp $ + */