Mercurial > mbsePi-apps / file comparison
comparison: brewco/util.c
brewco/util.c
- changeset 464
- 4a624c071ca9
- parent 446
- 78e9d5234d15
- child 471
- 1564b60558b1
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replaced
| 463:a1da58215b65 | 464:4a624c071ca9 |
|---|---|
| 74 return 0; | 74 return 0; |
| 75 } | 75 } |
| 76 | 76 |
| 77 | 77 |
| 78 | 78 |
| 79 /* | |
| 80 * Buffered filecopy, filetime is preserved. | |
| 81 */ | |
| 82 int file_cp(char *from, char *to) | |
| 83 { | |
| 84 char *line; | |
| 85 FILE *stfrom, *stto; | |
| 86 int dummy, bread; | |
| 87 static int error; | |
| 88 struct stat sb; | |
| 89 struct utimbuf ut; | |
| 90 | |
| 91 stfrom = fopen(from, "r"); | |
| 92 if (stfrom == NULL) | |
| 93 return errno; | |
| 94 | |
| 95 stto = fopen(to, "w"); | |
| 96 if (stto == NULL) { | |
| 97 error = errno; | |
| 98 fclose(stfrom); | |
| 99 return error; | |
| 100 } | |
| 101 | |
| 102 line = malloc(16384); | |
| 103 do { | |
| 104 bread = fread(line, 1, 16384, stfrom); | |
| 105 dummy = fwrite(line, 1, bread, stto); | |
| 106 if (bread != dummy) { | |
| 107 error = errno; | |
| 108 fclose(stfrom); | |
| 109 fclose(stto); | |
| 110 unlink(to); | |
| 111 free(line); | |
| 112 return error; | |
| 113 } | |
| 114 } while (bread != 0); | |
| 115 free(line); | |
| 116 fclose(stfrom); | |
| 117 if (fclose(stto) != 0) { | |
| 118 error = errno; | |
| 119 unlink(to); | |
| 120 return error; | |
| 121 } | |
| 122 | |
| 123 /* | |
| 124 * copy successfull, now copy file- and modification-time | |
| 125 */ | |
| 126 if (stat(from, &sb) == 0) { | |
| 127 ut.actime = mktime(localtime(&sb.st_atime)); | |
| 128 ut.modtime = mktime(localtime(&sb.st_mtime)); | |
| 129 if (utime(to, &ut) != 0) { | |
| 130 error = errno; | |
| 131 unlink(to); | |
| 132 return error; | |
| 133 } | |
| 134 chmod(to, sb.st_mode); | |
| 135 } | |
| 136 | |
| 137 return 0; | |
| 138 } | |
| 139 | |
| 140 | |
| 141 | |
| 79 long millis(void) | 142 long millis(void) |
| 80 { | 143 { |
| 81 struct timespec now; | 144 struct timespec now; |
| 82 | 145 |
| 83 clock_gettime(CLOCK_REALTIME , &now); | 146 clock_gettime(CLOCK_REALTIME , &now); |
