[1] | 1 | /* |
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| 2 | * string.c - string helper function implementation. |
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| 3 | * |
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| 4 | * Authors Ghassan Almaless (2007,2009,2010,2011,2012) |
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| 5 | * Alain Greiner (2017) |
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| 6 | * |
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| 7 | * Copyright (c) UPMC Sorbonne Universites |
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| 8 | * |
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| 9 | * This file is part of ALMOS-MKH. |
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| 10 | * |
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| 11 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 12 | * under the terms of the GNU General Public License as published by |
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| 13 | * the Free Software Foundation; version 2.0 of the License. |
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| 14 | * |
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| 15 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 18 | * General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU General Public License |
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| 21 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 22 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 23 | */ |
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| 24 | |
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| 25 | #include <hal_types.h> |
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| 26 | #include <ctype.h> |
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| 27 | #include <string.h> |
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| 28 | |
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| 29 | /////////////////////////////////// |
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| 30 | uint32_t strlen( const char * str ) |
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| 31 | { |
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| 32 | register const char *ptr = str; |
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| 33 | |
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| 34 | while (*ptr) ptr++; |
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| 35 | |
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| 36 | return (ptr - str); |
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| 37 | } |
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| 38 | |
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| 39 | /////////////////////////////////// |
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| 40 | uint32_t strnlen( const char * str, |
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| 41 | uint32_t maxlen ) |
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| 42 | { |
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| 43 | register const char *ptr = str; |
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| 44 | |
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| 45 | while (*ptr && (maxlen-- > 0)) ptr++; |
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| 46 | |
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| 47 | return (ptr - str); |
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| 48 | } |
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| 49 | |
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| 50 | //////////////////////////// |
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| 51 | int strcmp( const char * s1, |
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| 52 | const char * s2 ) |
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| 53 | { |
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[223] | 54 | |
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[1] | 55 | while (*s1 && *s1 == *s2) |
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| 56 | { |
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| 57 | s1 ++; |
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| 58 | s2 ++; |
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| 59 | } |
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[223] | 60 | |
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[1] | 61 | return (*s1 - *s2); |
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| 62 | } |
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| 63 | |
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| 64 | ///////////////////////////// |
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| 65 | int strncmp( const char * s1, |
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| 66 | const char * s2, |
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| 67 | uint32_t n ) |
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| 68 | { |
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[223] | 69 | if (n == 0) |
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| 70 | return s1 - s2; // XXX ??? |
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| 71 | |
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[1] | 72 | while (*s1 && (*s1 == *s2) && (n > 1)) |
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| 73 | { |
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| 74 | s1 ++; |
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| 75 | s2 ++; |
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| 76 | n--; |
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| 77 | } |
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[223] | 78 | |
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[1] | 79 | return (*s1 - *s2); |
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| 80 | } |
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| 81 | |
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| 82 | ////////////////////////////////// |
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| 83 | int strcasecmp( const char * str1, |
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| 84 | const char * str2 ) |
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| 85 | { |
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| 86 | char c1; |
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| 87 | char c2; |
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| 88 | |
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| 89 | do{ |
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| 90 | c1 = toupper(*++str1); |
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| 91 | c2 = toupper(*++str2); |
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| 92 | }while(c1 && c1 == c2); |
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[223] | 93 | |
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[1] | 94 | return (c1 - c2); |
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| 95 | } |
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| 96 | |
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| 97 | /////////////////////////// |
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| 98 | char * strcpy (char * dest, |
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| 99 | char * src ) |
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| 100 | { |
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| 101 | char *src_ptr = src; |
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| 102 | char *dst_ptr = dest; |
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| 103 | |
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| 104 | while(*src_ptr) |
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| 105 | *(dst_ptr++) = *(src_ptr++); |
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[223] | 106 | |
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[1] | 107 | *dst_ptr = 0; |
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| 108 | return dest; |
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| 109 | } |
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| 110 | |
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| 111 | /////////////////////////////// |
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| 112 | char * strncpy( char * dest, |
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| 113 | char * src, |
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| 114 | uint32_t n ) |
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| 115 | { |
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| 116 | uint32_t i; |
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| 117 | |
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| 118 | for (i = 0; (i < n) && (src[i] != '\0') ; i++) |
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| 119 | dest[i] = src[i]; |
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| 120 | |
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| 121 | for (; i < n; i++) |
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| 122 | dest[i] = '\0'; |
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[223] | 123 | |
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[1] | 124 | return dest; |
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| 125 | } |
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| 126 | |
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| 127 | ////////////////////////////// |
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| 128 | char * strchr( const char * s, |
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| 129 | int c ) |
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| 130 | { |
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| 131 | while(*s && *s != (char) c) |
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| 132 | s++; |
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| 133 | |
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| 134 | if(*s == (char) c) |
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| 135 | return (char*)s; |
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[223] | 136 | |
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[1] | 137 | return NULL; |
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| 138 | } |
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| 139 | |
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| 140 | /////////////////////////////// |
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| 141 | char * strrchr( const char * t, |
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| 142 | int c ) |
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| 143 | { |
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[223] | 144 | register char ch; |
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| 145 | register const char * l =0; |
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[1] | 146 | |
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[223] | 147 | ch = c; |
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| 148 | for (;;) { |
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| 149 | if (*t == ch) l=t; if (!*t) return (char*)l; ++t; |
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| 150 | } |
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| 151 | return (char*)l; |
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[1] | 152 | } |
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| 153 | |
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