… | |
… | |
43 | ret = fopen(buffer, "wb+"); |
43 | ret = fopen(buffer, "wb+"); |
44 | break; |
44 | break; |
45 | case 2: |
45 | case 2: |
46 | ret = fopen(buffer, "ab"); |
46 | ret = fopen(buffer, "ab"); |
47 | break; |
47 | break; |
|
|
48 | case 13: |
|
|
49 | ret = fopen(buffer, "rb+"); |
|
|
50 | break; |
48 | } |
51 | } |
49 | |
52 | |
50 | if (debug_itembin(6)) |
53 | if (debug_itembin(6)) |
51 | { |
54 | { |
52 | fprintf(stderr, "== tempfile == open == FILENAME: %s FILEPOINTER: %p ==\n", buffer, ret); |
55 | fprintf(stderr, "== tempfile == open == FILENAME: %s FILEPOINTER: %p ==\n", buffer, ret); |
… | |
… | |
58 | |
61 | |
59 | void tempfile_unlink(char *suffix, char *name) |
62 | void tempfile_unlink(char *suffix, char *name) |
60 | { |
63 | { |
61 | char buffer[4096]; |
64 | char buffer[4096]; |
62 | sprintf(buffer, "%s_%s.tmp", name, suffix); |
65 | sprintf(buffer, "%s_%s.tmp", name, suffix); |
|
|
66 | |
|
|
67 | //fprintf(stderr, "== tempfile == unlink == FILENAME: %s ==\n", buffer); |
|
|
68 | |
63 | unlink(buffer); |
69 | unlink(buffer); |
64 | } |
70 | } |
65 | |
71 | |
66 | void tempfile_rename(char *suffix, char *from, char *to) |
72 | void tempfile_rename(char *suffix, char *from, char *to) |
67 | { |
73 | { |
68 | char buffer_from[4096], buffer_to[4096]; |
74 | char buffer_from[4096], buffer_to[4096]; |
69 | sprintf(buffer_from, "%s_%s.tmp", from, suffix); |
75 | sprintf(buffer_from, "%s_%s.tmp", from, suffix); |
70 | sprintf(buffer_to, "%s_%s.tmp", to, suffix); |
76 | sprintf(buffer_to, "%s_%s.tmp", to, suffix); |
|
|
77 | |
|
|
78 | //fprintf(stderr, "== tempfile == rename == FILENAME FROM: %s FILENAME TO: %s ==\n", buffer_from, buffer_to); |
|
|
79 | |
71 | dbg_assert(rename(buffer_from, buffer_to) == 0); |
80 | dbg_assert(rename(buffer_from, buffer_to) == 0); |
72 | } |
81 | } |
73 | |
82 | |
|
|
83 | |
|
|
84 | #include <fcntl.h> |
|
|
85 | #include <errno.h> |
|
|
86 | int tempfile_cp(const char *to, const char *from) |
|
|
87 | { |
|
|
88 | int fd_to, fd_from; |
|
|
89 | char buf[4096]; |
|
|
90 | ssize_t nread; |
|
|
91 | int saved_errno; |
|
|
92 | |
|
|
93 | fd_from = open(from, O_RDONLY); |
|
|
94 | if (fd_from < 0) |
|
|
95 | { |
|
|
96 | return -1; |
|
|
97 | } |
|
|
98 | |
|
|
99 | fd_to = open(to, O_WRONLY | O_CREAT | O_EXCL, 0666); |
|
|
100 | if (fd_to < 0) |
|
|
101 | { |
|
|
102 | goto out_error; |
|
|
103 | } |
|
|
104 | |
|
|
105 | while (nread = read(fd_from, buf, sizeof buf), nread > 0) |
|
|
106 | { |
|
|
107 | char *out_ptr = buf; |
|
|
108 | ssize_t nwritten; |
|
|
109 | |
|
|
110 | do { |
|
|
111 | nwritten = write(fd_to, out_ptr, nread); |
|
|
112 | |
|
|
113 | if (nwritten >= 0) |
|
|
114 | { |
|
|
115 | nread -= nwritten; |
|
|
116 | out_ptr += nwritten; |
|
|
117 | } |
|
|
118 | else if (errno != EINTR) |
|
|
119 | { |
|
|
120 | goto out_error; |
|
|
121 | } |
|
|
122 | } while (nread > 0); |
|
|
123 | } |
|
|
124 | |
|
|
125 | if (nread == 0) |
|
|
126 | { |
|
|
127 | if (close(fd_to) < 0) |
|
|
128 | { |
|
|
129 | fd_to = -1; |
|
|
130 | goto out_error; |
|
|
131 | } |
|
|
132 | close(fd_from); |
|
|
133 | |
|
|
134 | /* Success! */ |
|
|
135 | return 0; |
|
|
136 | } |
|
|
137 | |
|
|
138 | out_error: |
|
|
139 | saved_errno = errno; |
|
|
140 | |
|
|
141 | close(fd_from); |
|
|
142 | if (fd_to >= 0) |
|
|
143 | { |
|
|
144 | close(fd_to); |
|
|
145 | } |
|
|
146 | |
|
|
147 | errno = saved_errno; |
|
|
148 | return -1; |
|
|
149 | } |
|
|
150 | |
|
|
151 | void tempfile_copyrename(char *suffix, char *from, char *to) |
|
|
152 | { |
|
|
153 | char buffer_from[4096], buffer_to[4096]; |
|
|
154 | sprintf(buffer_from, "%s_%s.tmp", from, suffix); |
|
|
155 | sprintf(buffer_to, "%s_%s.tmp", to, suffix); |
|
|
156 | |
|
|
157 | //fprintf(stderr, "== tempfile == copyrename == FILENAME FROM: %s FILENAME TO: %s ==\n", buffer_from, buffer_to); |
|
|
158 | |
|
|
159 | tempfile_cp(buffer_to, buffer_from); |
|
|
160 | unlink(buffer_from); |
|
|
161 | } |
|
|
162 | |