| 1 | #include <malloc.h> |
| 2 | #include <stdio.h> |
| 3 | #include <stdlib.h> |
| 4 | #include <string.h> |
| 5 | |
| 6 | #include "debug.h" |
| 7 | |
| 8 | #include "file.h" |
| 9 | |
| 10 | #define TLEN 8 |
| 11 | |
| 12 | /* read full file */ |
| 13 | |
| 14 | int readfile (char **buffer, char *filename) |
| 15 | { |
| 16 | |
| 17 | /* open file */ |
| 18 | |
| 19 | VERBOSE (DEBUG, PRINT ("Opening file %s for reading\n", filename)); |
| 20 | FILE *fd = fopen (filename, "rb"); |
| 21 | if (fd == NULL) { |
| 22 | VERBOSE (WARNING, PRINT ("Can't open file (%s) for reading\n", filename)); |
| 23 | return -1; |
| 24 | } |
| 25 | |
| 26 | VERBOSE (DEBUG, PRINT ("Seek file size\n")); |
| 27 | fseek (fd, 0, SEEK_END); |
| 28 | int size = ftell (fd); |
| 29 | fseek (fd, 0, SEEK_SET); /* same as rewind(f); */ |
| 30 | |
| 31 | /* read full file */ |
| 32 | |
| 33 | VERBOSE (DEBUG, PRINT ("Reading %d bytes\n", size)); |
| 34 | *buffer = calloc (size + 1, 1); |
| 35 | int len = fread (*buffer, 1, size, fd); |
| 36 | if (len != size) { |
| 37 | VERBOSE (WARNING, PRINT ("Can't read full file (%s)\n", filename)); |
| 38 | } |
| 39 | fclose (fd); |
| 40 | |
| 41 | (*buffer)[len] = 0; |
| 42 | return len; |
| 43 | } |
| 44 | |
| 45 | /* temp name */ |
| 46 | |
| 47 | char *tempname (char *tempdir, char *ext) |
| 48 | { |
| 49 | char table[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_"; |
| 50 | |
| 51 | unsigned int len = strlen (tempdir) + 1 + 4 + TLEN + ((ext) ? strlen (ext) : 0) + 1; |
| 52 | char *name = (char *) calloc (len, 1); |
| 53 | |
| 54 | sprintf (name, "%s/tmp-", tempdir); |
| 55 | while (strlen (name) + 1 < len - ((ext) ? strlen (ext) : 0)) { |
| 56 | name[strlen (name)] = table[rand () % 64]; |
| 57 | } |
| 58 | if (ext) { |
| 59 | strcat (name, ext); |
| 60 | } |
| 61 | |
| 62 | return name; |
| 63 | } |
| 64 | |
| 65 | /* write full file */ |
| 66 | |
| 67 | int writefile (char *filename, char *buffer, int size) |
| 68 | { |
| 69 | |
| 70 | /* open file */ |
| 71 | |
| 72 | VERBOSE (DEBUG, PRINT ("Opening file %s for writing\n", filename)); |
| 73 | FILE *fd = fopen (filename, "wb"); |
| 74 | if (fd == NULL) { |
| 75 | VERBOSE (WARNING, PRINT ("Can't open file (%s) for writing\n", filename)); |
| 76 | return -1; |
| 77 | } |
| 78 | |
| 79 | /* write full file */ |
| 80 | |
| 81 | VERBOSE (DEBUG, PRINT ("Writing %d bytes\n", size)); |
| 82 | int len = fwrite (buffer, size, 1, fd); |
| 83 | if (len != size) { |
| 84 | VERBOSE (WARNING, PRINT ("Can't write full file (%s)\n", filename)); |
| 85 | } |
| 86 | fclose (fd); |
| 87 | |
| 88 | return len; |
| 89 | } |
| 90 | |
| 91 | /* vim: set ts=4 sw=4 et: */ |