diff options
Diffstat (limited to 'networking')
| -rw-r--r-- | networking/wget.c | 90 |
1 files changed, 51 insertions, 39 deletions
diff --git a/networking/wget.c b/networking/wget.c index 7a931f363..1b132bea8 100644 --- a/networking/wget.c +++ b/networking/wget.c @@ -290,33 +290,36 @@ int wget_main(int argc, char **argv) /* * Retrieve HTTP response line and check for "200" status code. */ -read_response: + read_response: if (fgets(buf, sizeof(buf), sfp) == NULL) bb_error_msg_and_die("no response from server"); s = buf; while (*s != '\0' && !isspace(*s)) ++s; while (isspace(*s)) ++s; - switch (status = xatoi(s)) { - case 0: - case 100: - while (gethdr(buf, sizeof(buf), sfp, &n) != NULL) - /* eat all remaining headers */; - goto read_response; - case 200: - break; - case 300: /* redirection */ - case 301: - case 302: - case 303: + // FIXME: no error check + // xatou wouldn't work: "200 OK" + status = atoi(s); + switch (status) { + case 0: + case 100: + while (gethdr(buf, sizeof(buf), sfp, &n) != NULL) + /* eat all remaining headers */; + goto read_response; + case 200: + break; + case 300: /* redirection */ + case 301: + case 302: + case 303: + break; + case 206: + if (beg_range) break; - case 206: - if (beg_range) - break; - /*FALLTHRU*/ - default: - chomp(buf); - bb_error_msg_and_die("server returned error %s: %s", s, buf); + /*FALLTHRU*/ + default: + chomp(buf); + bb_error_msg_and_die("server returned error %s: %s", s, buf); } /* @@ -331,11 +334,9 @@ read_response: continue; } if (strcasecmp(buf, "transfer-encoding") == 0) { - if (strcasecmp(s, "chunked") == 0) { - chunked = got_clen = 1; - } else { + if (strcasecmp(s, "chunked") != 0) bb_error_msg_and_die("server wants to do %s transfer encoding", s); - } + chunked = got_clen = 1; } if (strcasecmp(buf, "location") == 0) { if (s[0] == '/') @@ -377,14 +378,14 @@ read_response: if (s) *(s++) = '\0'; switch (ftpcmd("USER ", target.user, sfp, buf)) { - case 230: + case 230: + break; + case 331: + if (ftpcmd("PASS ", s, sfp, buf) == 230) break; - case 331: - if (ftpcmd("PASS ", s, sfp, buf) == 230) - break; - /* FALLTHRU (failed login) */ - default: - bb_error_msg_and_die("ftp login: %s", buf+4); + /* FALLTHRU (failed login) */ + default: + bb_error_msg_and_die("ftp login: %s", buf+4); } ftpcmd("TYPE I", NULL, sfp, buf); @@ -402,12 +403,19 @@ read_response: /* * Entering passive mode */ - if (ftpcmd("PASV", NULL, sfp, buf) != 227) - bb_error_msg_and_die("PASV: %s", buf+4); + if (ftpcmd("PASV", NULL, sfp, buf) != 227) { + pasv_error: + bb_error_msg_and_die("bad response to %s: %s", "PASV", buf); + } + // Response is "227 garbageN1,N2,N3,N4,P1,P2 + // Server's IP is N1.N2.N3.N4 (we ignore it) + // Server's port for data connection is P1*256+P2 s = strrchr(buf, ','); - *s = 0; + if (!s) goto pasv_error; port = xatol_range(s+1, 0, 255); + *s = '\0'; s = strrchr(buf, ','); + if (!s) goto pasv_error; port += xatol_range(s+1, 0, 255) * 256; s_in.sin_port = htons(port); dfp = open_socket(&s_in); @@ -419,7 +427,7 @@ read_response: } if (ftpcmd("RETR ", target.path, sfp, buf) > 150) - bb_error_msg_and_die("RETR: %s", buf+4); + bb_error_msg_and_die("bad response to %s: %s", "RETR", buf); } @@ -510,7 +518,7 @@ static void parse_url(char *src_url, struct host_info *h) // and saves 'index.html?var=a%2Fb' (we save 'b') // wget 'http://busybox.net?login=john@doe': // request: 'GET /?login=john@doe HTTP/1.0' - // saves: 'index.html?login=john@doe' (we save ?login=john@doe) + // saves: 'index.html?login=john@doe' (we save '?login=john@doe') // wget 'http://busybox.net#test/test': // request: 'GET / HTTP/1.0' // saves: 'index.html' (we save 'test') @@ -628,8 +636,9 @@ static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc) static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf) { + int result; if (s1) { - if (!s2) s2=""; + if (!s2) s2 = ""; fprintf(fp, "%s%s\r\n", s1, s2); fflush(fp); } @@ -638,7 +647,7 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf) char *buf_ptr; if (fgets(buf, 510, fp) == NULL) { - bb_perror_msg_and_die("fgets"); + bb_perror_msg_and_die("error getting response"); } buf_ptr = strstr(buf, "\r\n"); if (buf_ptr) { @@ -646,7 +655,10 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf) } } while (!isdigit(buf[0]) || buf[3] != ' '); - return xatoi(buf); + buf[3] = '\0'; + result = xatoi_u(buf); + buf[3] = ' '; + return result; } #ifdef CONFIG_FEATURE_WGET_STATUSBAR |