[1] | 1 | /* The CGI_C library, by Thomas Boutell, version 2.01. CGI_C is intended |
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| 2 | to be a high-quality API to simplify CGI programming tasks. */ |
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| 3 | |
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| 4 | /* Make sure this is only included once. */ |
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| 5 | |
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| 6 | #ifndef CGI_C |
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| 7 | #define CGI_C 1 |
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| 8 | |
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| 9 | /* Bring in standard I/O since some of the functions refer to |
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| 10 | types defined by it, such as FILE *. */ |
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| 11 | |
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| 12 | #include "fcgi_stdio.h" |
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| 13 | //#include <stdio.h> |
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| 14 | |
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| 15 | /* The various CGI environment variables. Instead of using getenv(), |
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| 16 | the programmer should refer to these, which are always |
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| 17 | valid null-terminated strings (they may be empty, but they |
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| 18 | will never be null). If these variables are used instead |
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| 19 | of calling getenv(), then it will be possible to save |
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| 20 | and restore CGI environments, which is highly convenient |
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| 21 | for debugging. */ |
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| 22 | |
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| 23 | extern |
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| 24 | #ifdef __cplusplus |
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| 25 | "C" |
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| 26 | #endif |
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| 27 | char *cgiServerSoftware; |
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| 28 | extern |
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| 29 | #ifdef __cplusplus |
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| 30 | "C" |
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| 31 | #endif |
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| 32 | char *cgiServerName; |
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| 33 | extern |
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| 34 | #ifdef __cplusplus |
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| 35 | "C" |
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| 36 | #endif |
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| 37 | char *cgiGatewayInterface; |
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| 38 | extern |
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| 39 | #ifdef __cplusplus |
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| 40 | "C" |
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| 41 | #endif |
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| 42 | char *cgiServerProtocol; |
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| 43 | extern |
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| 44 | #ifdef __cplusplus |
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| 45 | "C" |
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| 46 | #endif |
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| 47 | char *cgiServerPort; |
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| 48 | extern |
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| 49 | #ifdef __cplusplus |
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| 50 | "C" |
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| 51 | #endif |
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| 52 | char *cgiRequestMethod; |
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| 53 | extern |
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| 54 | #ifdef __cplusplus |
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| 55 | "C" |
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| 56 | #endif |
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| 57 | char *cgiPathInfo; |
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| 58 | extern |
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| 59 | #ifdef __cplusplus |
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| 60 | "C" |
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| 61 | #endif |
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| 62 | char *cgiPathTranslated; |
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| 63 | extern |
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| 64 | #ifdef __cplusplus |
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| 65 | "C" |
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| 66 | #endif |
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| 67 | char *cgiScriptName; |
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| 68 | extern |
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| 69 | #ifdef __cplusplus |
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| 70 | "C" |
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| 71 | #endif |
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| 72 | char *cgiQueryString; |
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| 73 | extern |
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| 74 | #ifdef __cplusplus |
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| 75 | "C" |
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| 76 | #endif |
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| 77 | char *cgiRemoteHost; |
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| 78 | extern |
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| 79 | #ifdef __cplusplus |
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| 80 | "C" |
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| 81 | #endif |
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| 82 | char *cgiRemoteAddr; |
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| 83 | extern |
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| 84 | #ifdef __cplusplus |
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| 85 | "C" |
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| 86 | #endif |
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| 87 | char *cgiAuthType; |
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| 88 | extern |
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| 89 | #ifdef __cplusplus |
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| 90 | "C" |
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| 91 | #endif |
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| 92 | char *cgiRemoteUser; |
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| 93 | extern |
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| 94 | #ifdef __cplusplus |
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| 95 | "C" |
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| 96 | #endif |
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| 97 | char *cgiRemoteIdent; |
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| 98 | extern |
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| 99 | #ifdef __cplusplus |
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| 100 | "C" |
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| 101 | #endif |
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| 102 | char *cgiContentType; |
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| 103 | extern |
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| 104 | #ifdef __cplusplus |
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| 105 | "C" |
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| 106 | #endif |
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| 107 | char *cgiAccept; |
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| 108 | extern |
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| 109 | #ifdef __cplusplus |
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| 110 | "C" |
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| 111 | #endif |
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| 112 | char *cgiUserAgent; |
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| 113 | extern |
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| 114 | #ifdef __cplusplus |
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| 115 | "C" |
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| 116 | #endif |
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| 117 | char *cgiReferrer; |
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| 118 | |
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| 119 | /* Cookies as sent to the server. You can also get them |
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| 120 | individually, or as a string array; see the documentation. */ |
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| 121 | extern |
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| 122 | #ifdef __cplusplus |
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| 123 | "C" |
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| 124 | #endif |
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| 125 | char *cgiCookie; |
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| 126 | |
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[216] | 127 | extern |
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| 128 | #ifdef __cplusplus |
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| 129 | "C" |
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| 130 | #endif |
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| 131 | char *cgiSid; |
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| 132 | |
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[1] | 133 | /* A macro providing the same incorrect spelling that is |
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| 134 | found in the HTTP/CGI specifications */ |
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| 135 | #define cgiReferer cgiReferrer |
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| 136 | |
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| 137 | /* The number of bytes of data received. |
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| 138 | Note that if the submission is a form submission |
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| 139 | the library will read and parse all the information |
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| 140 | directly from cgiIn; the programmer need not do so. */ |
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| 141 | |
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| 142 | extern |
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| 143 | #ifdef __cplusplus |
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| 144 | "C" |
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| 145 | #endif |
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| 146 | int cgiContentLength; |
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| 147 | |
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| 148 | /* Pointer to CGI output. The cgiHeader functions should be used |
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| 149 | first to output the mime headers; the output HTML |
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| 150 | page, GIF image or other web document should then be written |
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| 151 | to cgiOut by the programmer. In the standard CGIC library, |
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| 152 | cgiOut is always equivalent to stdout. */ |
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| 153 | |
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| 154 | extern |
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| 155 | #ifdef __cplusplus |
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| 156 | "C" |
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| 157 | #endif |
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| 158 | FILE *cgiOut; |
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| 159 | |
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| 160 | /* Pointer to CGI input. The programmer does not read from this. |
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| 161 | We have continued to export it for backwards compatibility |
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| 162 | so that cgic 1.x applications link properly. */ |
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| 163 | |
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| 164 | extern |
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| 165 | #ifdef __cplusplus |
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| 166 | "C" |
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| 167 | #endif |
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| 168 | FILE *cgiIn; |
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| 169 | |
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| 170 | /* Possible return codes from the cgiForm family of functions (see below). */ |
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| 171 | |
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| 172 | typedef enum { |
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| 173 | cgiFormSuccess, |
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| 174 | cgiFormTruncated, |
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| 175 | cgiFormBadType, |
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| 176 | cgiFormEmpty, |
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| 177 | cgiFormNotFound, |
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| 178 | cgiFormConstrained, |
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| 179 | cgiFormNoSuchChoice, |
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| 180 | cgiFormMemory, |
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| 181 | cgiFormNoFileName, |
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| 182 | cgiFormNoContentType, |
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| 183 | cgiFormNotAFile, |
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| 184 | cgiFormOpenFailed, |
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| 185 | cgiFormIO, |
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| 186 | cgiFormEOF |
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| 187 | } cgiFormResultType; |
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| 188 | |
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| 189 | /* These functions are used to retrieve form data. See |
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| 190 | cgic.html for documentation. */ |
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| 191 | |
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| 192 | extern |
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| 193 | #ifdef __cplusplus |
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| 194 | "C" |
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| 195 | #endif |
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| 196 | cgiFormResultType cgiFormString( |
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| 197 | char *name, char *result, int max); |
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| 198 | |
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| 199 | extern |
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| 200 | #ifdef __cplusplus |
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| 201 | "C" |
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| 202 | #endif |
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| 203 | cgiFormResultType cgiFormStringNoNewlines( |
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| 204 | char *name, char *result, int max); |
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| 205 | |
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| 206 | |
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| 207 | extern |
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| 208 | #ifdef __cplusplus |
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| 209 | "C" |
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| 210 | #endif |
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| 211 | cgiFormResultType cgiFormStringSpaceNeeded( |
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| 212 | char *name, int *length); |
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| 213 | |
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| 214 | |
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| 215 | extern |
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| 216 | #ifdef __cplusplus |
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| 217 | "C" |
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| 218 | #endif |
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| 219 | cgiFormResultType cgiFormStringMultiple( |
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| 220 | char *name, char ***ptrToStringArray); |
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| 221 | |
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| 222 | extern |
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| 223 | #ifdef __cplusplus |
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| 224 | "C" |
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| 225 | #endif |
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| 226 | void cgiStringArrayFree(char **stringArray); |
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| 227 | |
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| 228 | extern |
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| 229 | #ifdef __cplusplus |
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| 230 | "C" |
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| 231 | #endif |
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| 232 | cgiFormResultType cgiFormInteger( |
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| 233 | char *name, int *result, int defaultV); |
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| 234 | |
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| 235 | extern |
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| 236 | #ifdef __cplusplus |
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| 237 | "C" |
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| 238 | #endif |
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| 239 | cgiFormResultType cgiFormIntegerBounded( |
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| 240 | char *name, int *result, int min, int max, int defaultV); |
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| 241 | |
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| 242 | extern |
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| 243 | #ifdef __cplusplus |
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| 244 | "C" |
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| 245 | #endif |
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| 246 | cgiFormResultType cgiFormDouble( |
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| 247 | char *name, double *result, double defaultV); |
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| 248 | |
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| 249 | extern |
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| 250 | #ifdef __cplusplus |
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| 251 | "C" |
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| 252 | #endif |
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| 253 | cgiFormResultType cgiFormDoubleBounded( |
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| 254 | char *name, double *result, double min, double max, double defaultV); |
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| 255 | |
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| 256 | extern |
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| 257 | #ifdef __cplusplus |
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| 258 | "C" |
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| 259 | #endif |
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| 260 | cgiFormResultType cgiFormSelectSingle( |
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| 261 | char *name, char **choicesText, int choicesTotal, |
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| 262 | int *result, int defaultV); |
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| 263 | |
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| 264 | |
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| 265 | extern |
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| 266 | #ifdef __cplusplus |
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| 267 | "C" |
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| 268 | #endif |
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| 269 | cgiFormResultType cgiFormSelectMultiple( |
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| 270 | char *name, char **choicesText, int choicesTotal, |
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| 271 | int *result, int *invalid); |
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| 272 | |
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| 273 | /* Just an alias; users have asked for this */ |
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| 274 | #define cgiFormSubmitClicked cgiFormCheckboxSingle |
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| 275 | |
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| 276 | extern |
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| 277 | #ifdef __cplusplus |
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| 278 | "C" |
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| 279 | #endif |
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| 280 | cgiFormResultType cgiFormCheckboxSingle( |
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| 281 | char *name); |
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| 282 | |
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| 283 | extern |
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| 284 | #ifdef __cplusplus |
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| 285 | "C" |
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| 286 | #endif |
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| 287 | cgiFormResultType cgiFormCheckboxMultiple( |
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| 288 | char *name, char **valuesText, int valuesTotal, |
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| 289 | int *result, int *invalid); |
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| 290 | |
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| 291 | extern |
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| 292 | #ifdef __cplusplus |
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| 293 | "C" |
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| 294 | #endif |
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| 295 | cgiFormResultType cgiFormRadio( |
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| 296 | char *name, char **valuesText, int valuesTotal, |
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| 297 | int *result, int defaultV); |
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| 298 | |
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| 299 | /* The paths returned by this function are the original names of files |
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| 300 | as reported by the uploading web browser and shoult NOT be |
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| 301 | blindly assumed to be "safe" names for server-side use! */ |
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| 302 | extern |
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| 303 | #ifdef __cplusplus |
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| 304 | "C" |
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| 305 | #endif |
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| 306 | cgiFormResultType cgiFormFileName( |
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| 307 | char *name, char *result, int max); |
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| 308 | |
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| 309 | /* The content type of the uploaded file, as reported by the browser. |
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| 310 | It should NOT be assumed that browsers will never falsify |
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| 311 | such information. */ |
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| 312 | extern |
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| 313 | #ifdef __cplusplus |
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| 314 | "C" |
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| 315 | #endif |
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| 316 | cgiFormResultType cgiFormFileContentType( |
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| 317 | char *name, char *result, int max); |
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| 318 | |
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| 319 | extern |
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| 320 | #ifdef __cplusplus |
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| 321 | "C" |
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| 322 | #endif |
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| 323 | cgiFormResultType cgiFormFileSize( |
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| 324 | char *name, int *sizeP); |
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| 325 | |
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| 326 | typedef struct cgiFileStruct *cgiFilePtr; |
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| 327 | |
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| 328 | extern |
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| 329 | #ifdef __cplusplus |
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| 330 | "C" |
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| 331 | #endif |
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| 332 | cgiFormResultType cgiFormFileOpen( |
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| 333 | char *name, cgiFilePtr *cfpp); |
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| 334 | |
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| 335 | extern |
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| 336 | #ifdef __cplusplus |
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| 337 | "C" |
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| 338 | #endif |
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| 339 | cgiFormResultType cgiFormFileRead( |
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| 340 | cgiFilePtr cfp, char *buffer, int bufferSize, int *gotP); |
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| 341 | |
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| 342 | extern |
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| 343 | #ifdef __cplusplus |
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| 344 | "C" |
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| 345 | #endif |
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| 346 | cgiFormResultType cgiFormFileClose( |
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| 347 | cgiFilePtr cfp); |
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| 348 | |
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| 349 | extern |
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| 350 | #ifdef __cplusplus |
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| 351 | "C" |
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| 352 | #endif |
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| 353 | cgiFormResultType cgiCookieString( |
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| 354 | char *name, char *result, int max); |
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| 355 | |
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| 356 | extern |
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| 357 | #ifdef __cplusplus |
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| 358 | "C" |
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| 359 | #endif |
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| 360 | cgiFormResultType cgiCookieInteger( |
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| 361 | char *name, int *result, int defaultV); |
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| 362 | |
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| 363 | cgiFormResultType cgiCookies( |
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| 364 | char ***ptrToStringArray); |
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| 365 | |
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| 366 | /* path can be null or empty in which case a path of / (entire site) is set. |
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| 367 | domain can be a single web site; if it is an entire domain, such as |
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| 368 | 'boutell.com', it should begin with a dot: '.boutell.com' */ |
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| 369 | extern |
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| 370 | #ifdef __cplusplus |
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| 371 | "C" |
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| 372 | #endif |
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| 373 | void cgiHeaderCookieSetString(char *name, char *value, |
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| 374 | int secondsToLive, char *path, char *domain); |
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| 375 | extern |
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| 376 | #ifdef __cplusplus |
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| 377 | "C" |
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| 378 | #endif |
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| 379 | void cgiHeaderCookieSetInteger(char *name, int value, |
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| 380 | int secondsToLive, char *path, char *domain); |
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| 381 | extern |
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| 382 | #ifdef __cplusplus |
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| 383 | "C" |
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| 384 | #endif |
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| 385 | void cgiHeaderLocation(char *redirectUrl); |
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| 386 | extern |
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| 387 | #ifdef __cplusplus |
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| 388 | "C" |
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| 389 | #endif |
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| 390 | void cgiHeaderStatus(int status, char *statusMessage); |
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| 391 | extern |
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| 392 | #ifdef __cplusplus |
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| 393 | "C" |
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| 394 | #endif |
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| 395 | void cgiHeaderContentType(char *mimeType); |
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| 396 | |
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| 397 | typedef enum { |
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| 398 | cgiEnvironmentIO, |
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| 399 | cgiEnvironmentMemory, |
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| 400 | cgiEnvironmentSuccess, |
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| 401 | cgiEnvironmentWrongVersion |
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| 402 | } cgiEnvironmentResultType; |
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| 403 | |
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| 404 | extern |
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| 405 | #ifdef __cplusplus |
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| 406 | "C" |
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| 407 | #endif |
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| 408 | cgiEnvironmentResultType cgiWriteEnvironment(char *filename); |
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| 409 | extern cgiEnvironmentResultType cgiReadEnvironment(char *filename); |
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| 410 | |
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| 411 | extern |
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| 412 | #ifdef __cplusplus |
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| 413 | "C" |
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| 414 | #endif |
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| 415 | int cgiMain(); |
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| 416 | extern |
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| 417 | #ifdef __cplusplus |
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| 418 | "C" |
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| 419 | #endif |
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| 420 | int cgiMain_init(); |
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| 421 | |
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| 422 | |
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| 423 | extern |
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| 424 | #ifdef __cplusplus |
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| 425 | "C" |
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| 426 | #endif |
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| 427 | cgiFormResultType cgiFormEntries( |
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| 428 | char ***ptrToStringArray); |
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| 429 | |
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| 430 | /* Output string with the <, &, and > characters HTML-escaped. |
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| 431 | 's' is null-terminated. Returns cgiFormIO in the event |
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| 432 | of error, cgiFormSuccess otherwise. */ |
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| 433 | cgiFormResultType cgiHtmlEscape(char *s); |
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| 434 | |
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| 435 | /* Output data with the <, &, and > characters HTML-escaped. |
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| 436 | 'data' is not null-terminated; 'len' is the number of |
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| 437 | bytes in 'data'. Returns cgiFormIO in the event |
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| 438 | of error, cgiFormSuccess otherwise. */ |
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| 439 | cgiFormResultType cgiHtmlEscapeData(char *data, int len); |
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| 440 | |
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| 441 | /* Output string with the " character HTML-escaped, and no |
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| 442 | other characters escaped. This is useful when outputting |
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| 443 | the contents of a tag attribute such as 'href' or 'src'. |
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| 444 | 's' is null-terminated. Returns cgiFormIO in the event |
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| 445 | of error, cgiFormSuccess otherwise. */ |
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| 446 | cgiFormResultType cgiValueEscape(char *s); |
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| 447 | |
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| 448 | /* Output data with the " character HTML-escaped, and no |
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| 449 | other characters escaped. This is useful when outputting |
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| 450 | the contents of a tag attribute such as 'href' or 'src'. |
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| 451 | 'data' is not null-terminated; 'len' is the number of |
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| 452 | bytes in 'data'. Returns cgiFormIO in the event |
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| 453 | of error, cgiFormSuccess otherwise. */ |
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| 454 | cgiFormResultType cgiValueEscapeData(char *data, int len); |
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| 455 | |
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| 456 | #endif /* CGI_C */ |
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| 457 | |
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