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bb742ede | 1 | /* |
5e0de328 | 2 | * Copyright (C) 2009-2012 the libgit2 contributors |
bb742ede VM |
3 | * |
4 | * This file is part of libgit2, distributed under the GNU GPL v2 with | |
5 | * a Linking Exception. For full terms see the included COPYING file. | |
6 | */ | |
f79026b4 VM |
7 | #include "common.h" |
8 | #include "posix.h" | |
9 | #include "path.h" | |
10 | #include <stdio.h> | |
11 | #include <ctype.h> | |
12 | ||
7998ae5a PB |
13 | #ifndef GIT_WIN32 |
14 | ||
798e4d53 VM |
15 | #ifdef NO_ADDRINFO |
16 | int p_getaddrinfo( | |
17 | const char *host, | |
18 | const char *port, | |
19 | struct addrinfo *hints, | |
20 | struct addrinfo **info) | |
21 | { | |
22 | GIT_UNUSED(hints); | |
23 | ||
24 | struct addrinfo *ainfo, *ai; | |
25 | int p = 0; | |
26 | ||
27 | if ((ainfo = malloc(sizeof(struct addrinfo))) == NULL) | |
28 | return -1; | |
29 | ||
30 | if ((ainfo->ai_hostent = gethostbyname(host)) == NULL) | |
31 | return -2; | |
32 | ||
33 | ainfo->ai_servent = getservbyname(port, 0); | |
34 | ||
35 | if (ainfo->ai_servent) | |
36 | ainfo->ai_port = ainfo->ai_servent->s_port; | |
37 | else | |
38 | ainfo->ai_port = atol(port); | |
39 | ||
40 | memcpy(&ainfo->ai_addr_in.sin_addr, | |
41 | ainfo->ai_hostent->h_addr_list[0], | |
42 | ainfo->ai_hostent->h_length); | |
43 | ||
44 | ainfo->ai_protocol = 0; | |
45 | ainfo->ai_socktype = hints->ai_socktype; | |
46 | ainfo->ai_family = ainfo->ai_hostent->h_addrtype; | |
47 | ainfo->ai_addr_in.sin_family = ainfo->ai_family; | |
48 | ainfo->ai_addr_in.sin_port = ainfo->ai_port; | |
49 | ainfo->ai_addr = (struct addrinfo *)&ainfo->ai_addr_in; | |
50 | ainfo->ai_addrlen = sizeof(struct sockaddr_in); | |
51 | ||
52 | *info = ainfo; | |
53 | ||
54 | if (ainfo->ai_hostent->h_addr_list[1] == NULL) { | |
55 | ainfo->ai_next = NULL; | |
56 | return 0; | |
57 | } | |
58 | ||
59 | ai = ainfo; | |
60 | ||
61 | for (p = 1; ainfo->ai_hostent->h_addr_list[p] != NULL; p++) { | |
62 | ai->ai_next = malloc(sizeof(struct addrinfo)); | |
63 | memcpy(&ai->ai_next, ainfo, sizeof(struct addrinfo)); | |
64 | memcpy(&ai->ai_next->ai_addr_in.sin_addr, | |
65 | ainfo->ai_hostent->h_addr_list[p], | |
66 | ainfo->ai_hostent->h_length); | |
67 | ai->ai_next->ai_addr = (struct addrinfo *)&ai->ai_next->ai_addr_in; | |
68 | ai = ai->ai_next; | |
69 | } | |
70 | ||
71 | ai->ai_next = NULL; | |
72 | return 0; | |
73 | } | |
74 | ||
75 | void p_freeaddrinfo(struct addrinfo *info) | |
76 | { | |
77 | struct addrinfo *p, *next; | |
78 | ||
79 | p = info; | |
80 | ||
81 | while(p != NULL) { | |
82 | next = p->ai_next; | |
83 | free(p); | |
84 | p = next; | |
85 | } | |
86 | } | |
87 | ||
88 | const char *p_gai_strerror(int ret) | |
89 | { | |
90 | switch(ret) { | |
91 | case -1: | |
92 | return "Out of memory"; | |
93 | break; | |
94 | ||
95 | case -2: | |
96 | return "Address lookup failed"; | |
97 | break; | |
98 | ||
99 | default: | |
100 | return "Unknown error"; | |
101 | break; | |
102 | } | |
103 | } | |
104 | #endif /* NO_ADDRINFO */ | |
105 | ||
3191ae89 | 106 | int p_open(const char *path, int flags, ...) |
f79026b4 | 107 | { |
3191ae89 | 108 | mode_t mode = 0; |
109 | ||
110 | if (flags & O_CREAT) | |
111 | { | |
112 | va_list arg_list; | |
113 | ||
114 | va_start(arg_list, flags); | |
19579847 | 115 | mode = (mode_t)va_arg(arg_list, int); |
3191ae89 | 116 | va_end(arg_list); |
117 | } | |
118 | ||
119 | return open(path, flags | O_BINARY, mode); | |
f79026b4 VM |
120 | } |
121 | ||
33127043 | 122 | int p_creat(const char *path, mode_t mode) |
f79026b4 VM |
123 | { |
124 | return open(path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, mode); | |
125 | } | |
126 | ||
7998ae5a PB |
127 | int p_getcwd(char *buffer_out, size_t size) |
128 | { | |
129 | char *cwd_buffer; | |
130 | ||
131 | assert(buffer_out && size > 0); | |
132 | ||
133 | cwd_buffer = getcwd(buffer_out, size); | |
134 | ||
135 | if (cwd_buffer == NULL) | |
dda708e7 | 136 | return -1; |
7998ae5a PB |
137 | |
138 | git_path_mkposix(buffer_out); | |
deafee7b | 139 | git_path_string_to_dir(buffer_out, size); /* append trailing slash */ |
97769280 | 140 | |
deafee7b | 141 | return 0; |
7998ae5a PB |
142 | } |
143 | ||
0c49ec2d CMN |
144 | int p_rename(const char *from, const char *to) |
145 | { | |
146 | if (!link(from, to)) { | |
147 | p_unlink(from); | |
dda708e7 | 148 | return 0; |
0c49ec2d CMN |
149 | } |
150 | ||
151 | if (!rename(from, to)) | |
dda708e7 | 152 | return 0; |
0c49ec2d | 153 | |
dda708e7 | 154 | return -1; |
0c49ec2d CMN |
155 | } |
156 | ||
798e4d53 | 157 | #endif /* GIT_WIN32 */ |
7998ae5a | 158 | |
f79026b4 VM |
159 | int p_read(git_file fd, void *buf, size_t cnt) |
160 | { | |
161 | char *b = buf; | |
162 | while (cnt) { | |
44ef8b1b RB |
163 | ssize_t r; |
164 | #ifdef GIT_WIN32 | |
165 | assert((size_t)((unsigned int)cnt) == cnt); | |
166 | r = read(fd, b, (unsigned int)cnt); | |
167 | #else | |
168 | r = read(fd, b, cnt); | |
169 | #endif | |
f79026b4 VM |
170 | if (r < 0) { |
171 | if (errno == EINTR || errno == EAGAIN) | |
172 | continue; | |
dda708e7 | 173 | return -1; |
f79026b4 VM |
174 | } |
175 | if (!r) | |
176 | break; | |
177 | cnt -= r; | |
178 | b += r; | |
179 | } | |
180 | return (int)(b - (char *)buf); | |
181 | } | |
182 | ||
2ba222c5 | 183 | int p_write(git_file fd, const void *buf, size_t cnt) |
f79026b4 | 184 | { |
2ba222c5 | 185 | const char *b = buf; |
f79026b4 | 186 | while (cnt) { |
44ef8b1b RB |
187 | ssize_t r; |
188 | #ifdef GIT_WIN32 | |
189 | assert((size_t)((unsigned int)cnt) == cnt); | |
190 | r = write(fd, b, (unsigned int)cnt); | |
191 | #else | |
192 | r = write(fd, b, cnt); | |
193 | #endif | |
f79026b4 VM |
194 | if (r < 0) { |
195 | if (errno == EINTR || errno == EAGAIN) | |
196 | continue; | |
dda708e7 | 197 | return -1; |
f79026b4 VM |
198 | } |
199 | if (!r) { | |
200 | errno = EPIPE; | |
dda708e7 | 201 | return -1; |
f79026b4 VM |
202 | } |
203 | cnt -= r; | |
204 | b += r; | |
205 | } | |
dda708e7 | 206 | return 0; |
f79026b4 | 207 | } |