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a4d04587 | 1 | /* |
749b1e90 | 2 | * "$Id: backend.c 7810 2008-07-29 01:11:15Z mike $" |
a4d04587 | 3 | * |
71e16022 | 4 | * Backend functions for CUPS. |
a4d04587 | 5 | * |
12f89d24 | 6 | * Copyright 2007-2012 by Apple Inc. |
a4d04587 | 7 | * Copyright 2006 by Easy Software Products. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
a4d04587 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * cupsBackendDeviceURI() - Get the device URI for a backend. | |
749b1e90 MS |
20 | * cupsBackendReport() - Write a device line from a backend. |
21 | * quote_string() - Write a quoted string to stdout, escaping \ and ". | |
a4d04587 | 22 | */ |
23 | ||
24 | /* | |
25 | * Include necessary headers... | |
26 | */ | |
27 | ||
71e16022 | 28 | #include "cups-private.h" |
a4d04587 | 29 | #include "backend.h" |
a4d04587 | 30 | |
31 | ||
749b1e90 MS |
32 | /* |
33 | * Local functions... | |
34 | */ | |
35 | ||
36 | static void quote_string(const char *s); | |
37 | ||
38 | ||
a4d04587 | 39 | /* |
40 | * 'cupsBackendDeviceURI()' - Get the device URI for a backend. | |
41 | * | |
42 | * The "argv" argument is the argv argument passed to main(). This | |
43 | * function returns the device URI passed in the DEVICE_URI environment | |
44 | * variable or the device URI passed in argv[0], whichever is found | |
45 | * first. | |
426c6a59 MS |
46 | * |
47 | * @since CUPS 1.2/Mac OS X 10.5@ | |
a4d04587 | 48 | */ |
49 | ||
ac884b6a | 50 | const char * /* O - Device URI or @code NULL@ */ |
a4d04587 | 51 | cupsBackendDeviceURI(char **argv) /* I - Command-line arguments */ |
52 | { | |
eac3a0a0 MS |
53 | const char *device_uri, /* Device URI */ |
54 | *auth_info_required; /* AUTH_INFO_REQUIRED env var */ | |
5eb9da71 | 55 | _cups_globals_t *cg = _cupsGlobals(); /* Global info */ |
eac3a0a0 | 56 | int options; /* Resolve options */ |
a4d04587 | 57 | |
58 | ||
5eb9da71 MS |
59 | if ((device_uri = getenv("DEVICE_URI")) == NULL) |
60 | { | |
61 | if (!argv || !argv[0] || !strchr(argv[0], ':')) | |
62 | return (NULL); | |
a4d04587 | 63 | |
5eb9da71 MS |
64 | device_uri = argv[0]; |
65 | } | |
66 | ||
eac3a0a0 MS |
67 | options = _HTTP_RESOLVE_STDERR; |
68 | if ((auth_info_required = getenv("AUTH_INFO_REQUIRED")) != NULL && | |
69 | !strcmp(auth_info_required, "negotiate")) | |
70 | options |= _HTTP_RESOLVE_FQDN; | |
71 | ||
5eb9da71 | 72 | return (_httpResolveURI(device_uri, cg->resolved_uri, |
eac3a0a0 | 73 | sizeof(cg->resolved_uri), options, NULL, NULL)); |
a4d04587 | 74 | } |
75 | ||
76 | ||
77 | /* | |
749b1e90 MS |
78 | * 'cupsBackendReport()' - Write a device line from a backend. |
79 | * | |
80 | * This function writes a single device line to stdout for a backend. | |
81 | * It handles quoting of special characters in the device-make-and-model, | |
82 | * device-info, device-id, and device-location strings. | |
426c6a59 | 83 | * |
178cb736 | 84 | * @since CUPS 1.4/Mac OS X 10.6@ |
749b1e90 MS |
85 | */ |
86 | ||
87 | void | |
88 | cupsBackendReport( | |
89 | const char *device_scheme, /* I - device-scheme string */ | |
90 | const char *device_uri, /* I - device-uri string */ | |
91 | const char *device_make_and_model, /* I - device-make-and-model string or @code NULL@ */ | |
92 | const char *device_info, /* I - device-info string or @code NULL@ */ | |
93 | const char *device_id, /* I - device-id string or @code NULL@ */ | |
94 | const char *device_location) /* I - device-location string or @code NULL@ */ | |
95 | { | |
96 | if (!device_scheme || !device_uri) | |
97 | return; | |
98 | ||
99 | printf("%s %s", device_scheme, device_uri); | |
100 | if (device_make_and_model && *device_make_and_model) | |
101 | quote_string(device_make_and_model); | |
102 | else | |
103 | quote_string("unknown"); | |
104 | quote_string(device_info); | |
105 | quote_string(device_id); | |
106 | quote_string(device_location); | |
107 | putchar('\n'); | |
108 | fflush(stdout); | |
109 | } | |
110 | ||
111 | ||
112 | /* | |
113 | * 'quote_string()' - Write a quoted string to stdout, escaping \ and ". | |
114 | */ | |
115 | ||
116 | static void | |
117 | quote_string(const char *s) /* I - String to write */ | |
118 | { | |
119 | fputs(" \"", stdout); | |
120 | ||
121 | if (s) | |
122 | { | |
123 | while (*s) | |
124 | { | |
125 | if (*s == '\\' || *s == '\"') | |
126 | putchar('\\'); | |
127 | ||
12f89d24 MS |
128 | if (*s == '\n') |
129 | putchar(' '); | |
130 | else | |
131 | putchar(*s); | |
749b1e90 MS |
132 | |
133 | s ++; | |
134 | } | |
135 | } | |
136 | ||
137 | putchar('\"'); | |
138 | } | |
139 | ||
140 | ||
141 | /* | |
142 | * End of "$Id: backend.c 7810 2008-07-29 01:11:15Z mike $". | |
a4d04587 | 143 | */ |