Annotation of embedaddon/curl/docs/examples/anyauthput.c, revision 1.1.1.1
1.1 misho 1: /***************************************************************************
2: * _ _ ____ _
3: * Project ___| | | | _ \| |
4: * / __| | | | |_) | |
5: * | (__| |_| | _ <| |___
6: * \___|\___/|_| \_\_____|
7: *
8: * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9: *
10: * This software is licensed as described in the file COPYING, which
11: * you should have received as part of this distribution. The terms
12: * are also available at https://curl.haxx.se/docs/copyright.html.
13: *
14: * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15: * copies of the Software, and permit persons to whom the Software is
16: * furnished to do so, under the terms of the COPYING file.
17: *
18: * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19: * KIND, either express or implied.
20: *
21: ***************************************************************************/
22: /* <DESC>
23: * HTTP PUT upload with authentiction using "any" method. libcurl picks the
24: * one the server supports/wants.
25: * </DESC>
26: */
27: #include <stdio.h>
28: #include <fcntl.h>
29: #include <sys/types.h>
30: #include <sys/stat.h>
31:
32: #include <curl/curl.h>
33:
34: #ifdef WIN32
35: # include <io.h>
36: # define READ_3RD_ARG unsigned int
37: #else
38: # include <unistd.h>
39: # define READ_3RD_ARG size_t
40: #endif
41:
42: #if LIBCURL_VERSION_NUM < 0x070c03
43: #error "upgrade your libcurl to no less than 7.12.3"
44: #endif
45:
46: /*
47: * This example shows a HTTP PUT operation with authentiction using "any"
48: * type. It PUTs a file given as a command line argument to the URL also given
49: * on the command line.
50: *
51: * Since libcurl 7.12.3, using "any" auth and POST/PUT requires a set ioctl
52: * function.
53: *
54: * This example also uses its own read callback.
55: */
56:
57: /* ioctl callback function */
58: static curlioerr my_ioctl(CURL *handle, curliocmd cmd, void *userp)
59: {
60: int *fdp = (int *)userp;
61: int fd = *fdp;
62:
63: (void)handle; /* not used in here */
64:
65: switch(cmd) {
66: case CURLIOCMD_RESTARTREAD:
67: /* mr libcurl kindly asks as to rewind the read data stream to start */
68: if(-1 == lseek(fd, 0, SEEK_SET))
69: /* couldn't rewind */
70: return CURLIOE_FAILRESTART;
71:
72: break;
73:
74: default: /* ignore unknown commands */
75: return CURLIOE_UNKNOWNCMD;
76: }
77: return CURLIOE_OK; /* success! */
78: }
79:
80: /* read callback function, fread() look alike */
81: static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
82: {
83: ssize_t retcode;
84: curl_off_t nread;
85:
86: int *fdp = (int *)stream;
87: int fd = *fdp;
88:
89: retcode = read(fd, ptr, (READ_3RD_ARG)(size * nmemb));
90:
91: nread = (curl_off_t)retcode;
92:
93: fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
94: " bytes from file\n", nread);
95:
96: return retcode;
97: }
98:
99: int main(int argc, char **argv)
100: {
101: CURL *curl;
102: CURLcode res;
103: int hd;
104: struct stat file_info;
105:
106: char *file;
107: char *url;
108:
109: if(argc < 3)
110: return 1;
111:
112: file = argv[1];
113: url = argv[2];
114:
115: /* get the file size of the local file */
116: hd = open(file, O_RDONLY);
117: fstat(hd, &file_info);
118:
119: /* In windows, this will init the winsock stuff */
120: curl_global_init(CURL_GLOBAL_ALL);
121:
122: /* get a curl handle */
123: curl = curl_easy_init();
124: if(curl) {
125: /* we want to use our own read function */
126: curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
127:
128: /* which file to upload */
129: curl_easy_setopt(curl, CURLOPT_READDATA, (void *)&hd);
130:
131: /* set the ioctl function */
132: curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, my_ioctl);
133:
134: /* pass the file descriptor to the ioctl callback as well */
135: curl_easy_setopt(curl, CURLOPT_IOCTLDATA, (void *)&hd);
136:
137: /* enable "uploading" (which means PUT when doing HTTP) */
138: curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
139:
140: /* specify target URL, and note that this URL should also include a file
141: name, not only a directory (as you can do with GTP uploads) */
142: curl_easy_setopt(curl, CURLOPT_URL, url);
143:
144: /* and give the size of the upload, this supports large file sizes
145: on systems that have general support for it */
146: curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
147: (curl_off_t)file_info.st_size);
148:
149: /* tell libcurl we can use "any" auth, which lets the lib pick one, but it
150: also costs one extra round-trip and possibly sending of all the PUT
151: data twice!!! */
152: curl_easy_setopt(curl, CURLOPT_HTTPAUTH, (long)CURLAUTH_ANY);
153:
154: /* set user name and password for the authentication */
155: curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
156:
157: /* Now run off and do what you've been told! */
158: res = curl_easy_perform(curl);
159: /* Check for errors */
160: if(res != CURLE_OK)
161: fprintf(stderr, "curl_easy_perform() failed: %s\n",
162: curl_easy_strerror(res));
163:
164: /* always cleanup */
165: curl_easy_cleanup(curl);
166: }
167: close(hd); /* close the local file */
168:
169: curl_global_cleanup();
170: return 0;
171: }
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