[13] | 1 | /* |
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| 2 | * Revision Control Information |
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| 3 | * |
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| 4 | * $Id: strsav.c,v 1.7 2009/01/05 21:04:04 fabio Exp $ |
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| 5 | * |
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| 6 | */ |
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| 7 | /* LINTLIBRARY */ |
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| 8 | |
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| 9 | #include <stdio.h> |
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| 10 | #include "util.h" |
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| 11 | |
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| 12 | |
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| 13 | /* |
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| 14 | * util_strsav -- save a copy of a string |
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| 15 | */ |
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| 16 | char * |
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| 17 | util_strsav(char const *s) |
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| 18 | { |
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| 19 | if(s == NIL(char)) { /* added 7/95, for robustness */ |
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| 20 | return NIL(char); |
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| 21 | } |
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| 22 | else { |
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| 23 | return strcpy(ALLOC(char, strlen(s)+1), s); |
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| 24 | } |
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| 25 | } |
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| 26 | |
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| 27 | /* |
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| 28 | * util_inttostr -- converts an integer into a string |
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| 29 | */ |
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| 30 | char * |
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| 31 | util_inttostr(int i) |
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| 32 | { |
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| 33 | unsigned int mod, len; |
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| 34 | char *s; |
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| 35 | |
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| 36 | if (i == 0) |
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| 37 | len = 1; |
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| 38 | else { |
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| 39 | if (i < 0) { |
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| 40 | len = 1; |
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| 41 | mod = -i; |
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| 42 | } |
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| 43 | else { |
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| 44 | len = 0; |
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| 45 | mod = i; |
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| 46 | } |
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| 47 | len += (unsigned) floor(log10(mod)) + 1; |
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| 48 | } |
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| 49 | |
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| 50 | s = ALLOC(char, len + 1); |
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| 51 | sprintf(s, "%d", i); |
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| 52 | |
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| 53 | return s; |
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| 54 | } |
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| 55 | |
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| 56 | /* |
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| 57 | * util_strcat3 -- Creates a new string which is the concatenation of 3 |
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| 58 | * strings. It is the responsibility of the caller to free this string |
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| 59 | * using FREE. |
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| 60 | */ |
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| 61 | char * |
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| 62 | util_strcat3( |
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| 63 | char const * str1, |
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| 64 | char const * str2, |
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| 65 | char const * str3) |
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| 66 | { |
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| 67 | char *str = ALLOC(char, strlen(str1) + strlen(str2) + strlen(str3) + 1); |
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| 68 | |
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| 69 | (void) strcpy(str, str1); |
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| 70 | (void) strcat(str, str2); |
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| 71 | (void) strcat(str, str3); |
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| 72 | |
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| 73 | return (str); |
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| 74 | } |
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| 75 | |
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| 76 | /* |
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| 77 | * util_strcat4 -- Creates a new string which is the concatenation of 4 |
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| 78 | * strings. It is the responsibility of the caller to free this string |
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| 79 | * using FREE. |
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| 80 | */ |
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| 81 | char * |
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| 82 | util_strcat4( |
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| 83 | char const * str1, |
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| 84 | char const * str2, |
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| 85 | char const * str3, |
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| 86 | char const * str4) |
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| 87 | { |
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| 88 | char *str = ALLOC(char, strlen(str1) + strlen(str2) + strlen(str3) + |
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| 89 | strlen(str4) + 1); |
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| 90 | |
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| 91 | (void) strcpy(str, str1); |
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| 92 | (void) strcat(str, str2); |
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| 93 | (void) strcat(str, str3); |
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| 94 | (void) strcat(str, str4); |
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| 95 | |
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| 96 | return (str); |
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| 97 | } |
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| 98 | |
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| 99 | |
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| 100 | #if !HAVE_STRSTR |
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| 101 | /**Function******************************************************************** |
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| 102 | |
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| 103 | Synopsis [required] |
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| 104 | |
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| 105 | Description [optional] |
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| 106 | |
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| 107 | SideEffects [required] |
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| 108 | |
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| 109 | SeeAlso [optional] |
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| 110 | |
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| 111 | ******************************************************************************/ |
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| 112 | char * |
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| 113 | strstr( |
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| 114 | char const * s, |
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| 115 | char const * pat) |
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| 116 | { |
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| 117 | int len; |
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| 118 | |
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| 119 | len = strlen(pat); |
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| 120 | for (; *s != '\0'; ++s) |
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| 121 | if (*s == *pat && memcmp(s, pat, len) == 0) { |
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| 122 | return (char *)s; /* UGH */ |
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| 123 | } |
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| 124 | return NULL; |
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| 125 | } |
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| 126 | #endif /* !HAVE_STRSTR */ |
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| 127 | |
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| 128 | #if !HAVE_STRCHR |
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| 129 | /**Function******************************************************************** |
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| 130 | |
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| 131 | Synopsis [required] |
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| 132 | |
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| 133 | Description [optional] |
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| 134 | |
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| 135 | SideEffects [required] |
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| 136 | |
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| 137 | SeeAlso [optional] |
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| 138 | |
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| 139 | ******************************************************************************/ |
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| 140 | char * |
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| 141 | strchr(char const * s, int c) |
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| 142 | { |
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| 143 | for (; *s != '\0'; s++) { |
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| 144 | if (*s == c) { |
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| 145 | return (char *)s; |
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| 146 | } |
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| 147 | } |
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| 148 | return NULL; |
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| 149 | |
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| 150 | } |
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| 151 | #endif /* !HAVE_STRCHR */ |
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