1 /*
2 * Copyright (c) 2007, Novell Inc.
3 *
4 * This program is licensed under the BSD license, read LICENSE.BSD
5 * for further information
6 */
7
8 /*
9 * util.h
10 *
11 */
12
13 #ifndef LIBSOLV_UTIL_H
14 #define LIBSOLV_UTIL_H
15
16 #include <stddef.h>
17 #include <string.h>
18
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22
23 /**
24 * malloc
25 * exits with error message on error
26 */
27 extern void *solv_malloc(size_t);
28 extern void *solv_malloc2(size_t, size_t);
29 extern void *solv_calloc(size_t, size_t);
30 extern void *solv_realloc(void *, size_t);
31 extern void *solv_realloc2(void *, size_t, size_t);
32 extern void *solv_extend_realloc(void *, size_t, size_t, size_t);
33 extern void *solv_free(void *);
34 extern char *solv_strdup(const char *);
35 extern void solv_oom(size_t, size_t);
36 extern unsigned int solv_timems(unsigned int subtract);
37 extern int solv_setcloexec(int fd, int state);
38 extern void solv_sort(void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *, void *), void *compard);
39 extern char *solv_dupjoin(const char *str1, const char *str2, const char *str3);
40 extern char *solv_dupappend(const char *str1, const char *str2, const char *str3);
41 extern int solv_hex2bin(const char **strp, unsigned char *buf, int bufl);
42 extern char *solv_bin2hex(const unsigned char *buf, int l, char *str);
43 extern size_t solv_validutf8(const char *buf);
44 extern char *solv_latin1toutf8(const char *buf);
45 extern char *solv_replacebadutf8(const char *buf, int replchar);
46
47
solv_extend(void * buf,size_t len,size_t nmemb,size_t size,size_t block)48 static inline void *solv_extend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
49 {
50 if (nmemb == 1)
51 {
52 if ((len & block) == 0)
53 buf = solv_extend_realloc(buf, len + 1, size, block);
54 }
55 else
56 {
57 if (((len - 1) | block) != ((len + nmemb - 1) | block))
58 buf = solv_extend_realloc(buf, len + nmemb, size, block);
59 }
60 return buf;
61 }
62
63 /**
64 * extend an array by reallocation and zero's the new section
65 * buf old pointer
66 * len current size
67 * nmbemb number of elements to add
68 * size size of each element
69 * block block size used to allocate the elements
70 */
solv_zextend(void * buf,size_t len,size_t nmemb,size_t size,size_t block)71 static inline void *solv_zextend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
72 {
73 buf = solv_extend(buf, len, nmemb, size, block);
74 memset((char *)buf + len * size, 0, nmemb * size);
75 return buf;
76 }
77
solv_extend_resize(void * buf,size_t len,size_t size,size_t block)78 static inline void *solv_extend_resize(void *buf, size_t len, size_t size, size_t block)
79 {
80 if (len)
81 buf = solv_extend_realloc(buf, len, size, block);
82 return buf;
83 }
84
solv_calloc_block(size_t len,size_t size,size_t block)85 static inline void *solv_calloc_block(size_t len, size_t size, size_t block)
86 {
87 void *buf;
88 if (!len)
89 return 0;
90 buf = solv_extend_realloc((void *)0, len, size, block);
91 memset(buf, 0, ((len + block) & ~block) * size);
92 return buf;
93 }
94
solv_memdup(void * buf,size_t len)95 static inline void *solv_memdup(void *buf, size_t len)
96 {
97 void *newbuf;
98 if (!buf)
99 return 0;
100 newbuf = solv_malloc(len);
101 if (len)
102 memcpy(newbuf, buf, len);
103 return newbuf;
104 }
105
solv_memdup2(void * buf,size_t num,size_t len)106 static inline void *solv_memdup2(void *buf, size_t num, size_t len)
107 {
108 void *newbuf;
109 if (!buf)
110 return 0;
111 newbuf = solv_malloc2(num, len);
112 if (num)
113 memcpy(newbuf, buf, num * len);
114 return newbuf;
115 }
116
117 #ifdef __cplusplus
118 }
119 #endif
120
121 #endif /* LIBSOLV_UTIL_H */
122