CURLOPT_REDIR_PROTOCOLS.3 3.2 KB

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  23. .TH CURLOPT_REDIR_PROTOCOLS 3 "September 21, 2016" "libcurl 7.61.1" "curl_easy_setopt options"
  24. .SH NAME
  25. CURLOPT_REDIR_PROTOCOLS \- set protocols allowed to redirect to
  26. .SH SYNOPSIS
  27. #include <curl/curl.h>
  28. CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REDIR_PROTOCOLS, long bitmask);
  29. .SH DESCRIPTION
  30. Pass a long that holds a bitmask of CURLPROTO_* defines. If used, this bitmask
  31. limits what protocols libcurl may use in a transfer that it follows to in a
  32. redirect when \fICURLOPT_FOLLOWLOCATION(3)\fP is enabled. This allows you to
  33. limit specific transfers to only be allowed to use a subset of protocols in
  34. redirections.
  35. Protocols denied by \fICURLOPT_PROTOCOLS(3)\fP are not overridden by this
  36. option.
  37. By default libcurl will allow all protocols on redirect except several disabled
  38. for security reasons: Since 7.19.4 FILE and SCP are disabled, and since 7.40.0
  39. SMB and SMBS are also disabled. \fICURLPROTO_ALL\fP enables all protocols on
  40. redirect, including those disabled for security.
  41. These are the available protocol defines:
  42. .nf
  43. CURLPROTO_DICT
  44. CURLPROTO_FILE
  45. CURLPROTO_FTP
  46. CURLPROTO_FTPS
  47. CURLPROTO_GOPHER
  48. CURLPROTO_HTTP
  49. CURLPROTO_HTTPS
  50. CURLPROTO_IMAP
  51. CURLPROTO_IMAPS
  52. CURLPROTO_LDAP
  53. CURLPROTO_LDAPS
  54. CURLPROTO_POP3
  55. CURLPROTO_POP3S
  56. CURLPROTO_RTMP
  57. CURLPROTO_RTMPE
  58. CURLPROTO_RTMPS
  59. CURLPROTO_RTMPT
  60. CURLPROTO_RTMPTE
  61. CURLPROTO_RTMPTS
  62. CURLPROTO_RTSP
  63. CURLPROTO_SCP
  64. CURLPROTO_SFTP
  65. CURLPROTO_SMB
  66. CURLPROTO_SMBS
  67. CURLPROTO_SMTP
  68. CURLPROTO_SMTPS
  69. CURLPROTO_TELNET
  70. CURLPROTO_TFTP
  71. .fi
  72. .SH DEFAULT
  73. All protocols except for FILE, SCP and since 7.40.0 SMB and SMBS.
  74. .SH PROTOCOLS
  75. All
  76. .SH EXAMPLE
  77. .nf
  78. curl = curl_easy_init();
  79. if(curl) {
  80. /* pass in the URL from an external source */
  81. curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
  82. /* only allow redirects to HTTP and HTTPS URLs */
  83. curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS,
  84. CURLPROTO_HTTP | CURLPROTO_HTTPS);
  85. /* Perform the request */
  86. curl_easy_perform(curl);
  87. }
  88. .fi
  89. .SH AVAILABILITY
  90. Added in 7.19.4, before then it would follow all protocols.
  91. .SH RETURN VALUE
  92. Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
  93. .SH "SEE ALSO"
  94. .BR CURLOPT_PROTOCOLS "(3), "