[412] | 1 | //util.c: |
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| 2 | |
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[706] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 5 | * The code (may) include prototypes and comments (and maybe |
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| 6 | * other code fragements) from libpulse*. They are mostly copyrighted by: |
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| 7 | * Lennart Poettering <poettering@users.sourceforge.net> and |
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| 8 | * Pierre Ossman <drzeus@drzeus.cx> |
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| 9 | * |
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| 10 | * This file is part of libroarpulse a part of RoarAudio, |
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| 11 | * a cross-platform sound system for both, home and professional use. |
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| 12 | * See README for details. |
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| 13 | * |
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| 14 | * This file is free software; you can redistribute it and/or modify |
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| 15 | * it under the terms of the GNU General Public License version 3 |
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| 16 | * as published by the Free Software Foundation. |
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| 17 | * |
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| 18 | * RoarAudio is distributed in the hope that it will be useful, |
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| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 21 | * GNU General Public License for more details. |
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| 22 | * |
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| 23 | * You should have received a copy of the GNU General Public License |
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| 24 | * along with this software; see the file COPYING. If not, write to |
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[3517] | 25 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 26 | * Boston, MA 02110-1301, USA. |
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[706] | 27 | * |
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| 28 | * NOTE for everyone want's to change something and send patches: |
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| 29 | * read README and HACKING! There a addition information on |
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| 30 | * the license of this document you need to read before you send |
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| 31 | * any patches. |
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| 32 | * |
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| 33 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 34 | * or libpulse*: |
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| 35 | * The libs libroaresd, libroararts and libroarpulse link this libroar |
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| 36 | * and are therefore GPL. Because of this it may be illigal to use |
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| 37 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 38 | */ |
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| 39 | |
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[412] | 40 | #include <libroarpulse/libroarpulse.h> |
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| 41 | |
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| 42 | /** Return the binary file name of the current process. This is not |
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| 43 | * supported on all architectures, in which case NULL is returned. */ |
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| 44 | char *pa_get_binary_name(char *s, size_t l) { |
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[414] | 45 | #ifdef __linux__ |
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| 46 | int ret; |
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| 47 | char path[PATH_MAX]; |
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| 48 | |
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| 49 | if ( (ret = readlink("/proc/self/exe", path, PATH_MAX-1)) != -1 ) { |
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| 50 | path[ret] = 0; |
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| 51 | return strncpy(s, pa_path_get_filename(path), l); |
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| 52 | } |
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| 53 | #endif |
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| 54 | |
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[412] | 55 | return NULL; |
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| 56 | } |
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| 57 | |
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| 58 | /** Return a pointer to the filename inside a path (which is the last |
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| 59 | * component). */ |
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[2577] | 60 | // some versions declare this as const char * f(...) |
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[1608] | 61 | // and newer(?) versions as char * f(...)... |
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[2579] | 62 | ROAR_HAVE_TYPE_PA_PATH_GET_FILENAME pa_path_get_filename(const char *p) { |
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[413] | 63 | char * r; |
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| 64 | |
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| 65 | if ( (r = strrchr(p, '/')) ) { |
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| 66 | return (const char *) r+1; |
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| 67 | } else { |
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| 68 | return p; |
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| 69 | } |
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| 70 | |
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[412] | 71 | } |
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| 72 | |
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[3489] | 73 | /** Return the current username in the specified string buffer. */ |
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| 74 | char *pa_get_user_name(char *s, size_t l); |
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| 75 | |
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| 76 | /** Return the current hostname in the specified buffer. */ |
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| 77 | char *pa_get_host_name(char *s, size_t l); |
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| 78 | |
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| 79 | /** Return the fully qualified domain name in s */ |
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| 80 | char *pa_get_fqdn(char *s, size_t l); |
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| 81 | |
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| 82 | /** Return the home directory of the current user */ |
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| 83 | char *pa_get_home_dir(char *s, size_t l) { |
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| 84 | char * home = getenv("HOME"); |
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| 85 | |
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| 86 | if ( home == NULL ) |
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| 87 | return NULL; |
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| 88 | |
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| 89 | strncpy(s, home, l); |
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| 90 | |
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| 91 | s[l-1] = 0; |
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| 92 | |
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| 93 | return s; |
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| 94 | } |
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| 95 | |
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| 96 | /** Wait t milliseconds */ |
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| 97 | int pa_msleep(unsigned long t) { |
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| 98 | #ifdef ROAR_TARGET_WIN32 |
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| 99 | Sleep(t); |
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| 100 | #else |
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| 101 | usleep(1000*t); |
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| 102 | #endif |
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| 103 | return 0; |
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| 104 | } |
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| 105 | |
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[3515] | 106 | /* Format the specified data as a hexademical string */ |
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| 107 | char *pa_hexstr(const uint8_t* d, size_t dlength, char *s, size_t slength) { |
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| 108 | const char table[] = "0123456789abcdef"; |
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| 109 | char * p = s; |
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| 110 | size_t i; |
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| 111 | |
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| 112 | for (i = 0; i < dlength && slength > 2; i++, slength -= 2, d++) { |
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| 113 | *(p++) = table[*d >> 4]; |
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| 114 | *(p++) = table[*d & 0x0F]; |
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| 115 | } |
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| 116 | |
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| 117 | *p = 0; |
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| 118 | |
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| 119 | return s; |
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| 120 | } |
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| 121 | |
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| 122 | /* Parse a hexadecimal string as created by pa_hexstr() to a BLOB */ |
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| 123 | size_t pa_parsehex(const char *p, uint8_t *d, size_t dlength) { |
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| 124 | size_t have = 0; |
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| 125 | register int low_nibble = 0; |
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| 126 | register char c; |
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| 127 | |
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| 128 | if ( dlength == 0 ) |
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| 129 | return 0; |
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| 130 | |
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| 131 | for (; (c = *p); p++) { |
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| 132 | if ( c >= '0' && c <= '9' ) { |
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| 133 | c -= '0'; |
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| 134 | } else if ( c >= 'a' && c <= 'f' ) { |
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| 135 | c -= 'a' - 10; |
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| 136 | } else if ( c >= 'A' && c <= 'F' ) { |
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| 137 | c -= 'A' - 10; |
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| 138 | } else { |
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| 139 | return (size_t)-1; |
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| 140 | } |
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| 141 | |
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| 142 | if ( low_nibble ) { |
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| 143 | *d |= c & 0x0F; |
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| 144 | low_nibble = 0; |
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| 145 | |
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| 146 | d++; |
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| 147 | have++; |
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| 148 | dlength--; |
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| 149 | |
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| 150 | if ( dlength == 0 ) |
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| 151 | return have; |
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| 152 | } else { |
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| 153 | *d = (c & 0x0F) << 4; |
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| 154 | low_nibble = 1; |
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| 155 | } |
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| 156 | } |
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| 157 | |
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| 158 | return have; |
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| 159 | } |
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| 160 | |
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| 161 | |
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[412] | 162 | //ll |
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