projects / libgit2.git / blame
| Commit | Line | Data |
|---|---|---|
| f7fc68df CMN |
1 | /* |
| 2 | * This file is free software; you can redistribute it and/or modify | |
| 3 | * it under the terms of the GNU General Public License, version 2, | |
| 4 | * as published by the Free Software Foundation. | |
| 5 | * | |
| 6 | * In addition to the permissions in the GNU General Public License, | |
| 7 | * the authors give you unlimited permission to link the compiled | |
| 8 | * version of this file into combinations with other programs, | |
| 9 | * and to distribute those combinations without any restriction | |
| 10 | * coming from the use of this file. (The General Public License | |
| 11 | * restrictions do apply in other respects; for example, they cover | |
| 12 | * modification of the file, and distribution when not linked into | |
| 13 | * a combined executable.) | |
| 14 | * | |
| 15 | * This file is distributed in the hope that it will be useful, but | |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | * General Public License for more details. | |
| 19 | * | |
| 20 | * You should have received a copy of the GNU General Public License | |
| 21 | * along with this program; see the file COPYING. If not, write to | |
| 22 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
| 23 | * Boston, MA 02110-1301, USA. | |
| 24 | */ | |
| 25 | ||
| 26 | #include "git2/pkt.h" | |
| 27 | #include "git2/types.h" | |
| 28 | #include "git2/errors.h" | |
| 29 | ||
| 30 | #include "common.h" | |
| 31 | #include "util.h" | |
| 32 | ||
| 33 | /* | |
| 34 | * As per the documentation, the syntax is: | |
| 35 | * | |
| 36 | * pkt-line = data-pkt / flush-pkt | |
| 37 | * data-pkt = pkt-len pkt-payload | |
| 38 | * pkt-len = 4*(HEXDIG) | |
| 39 | * pkt-payload = (pkt-len -4)*(OCTET) | |
| 40 | * flush-pkt = "0000" | |
| 41 | * | |
| 42 | * Which means that the first four bytes are the length of the line, | |
| 43 | * in ASCII hexadecimal (including itself) | |
| 44 | */ | |
| 45 | ||
| 46 | int git_pkt_parse_line(git_pkt **head, const char *line, const char **out) | |
| 47 | { | |
| 48 | int error = GIT_SUCCESS; | |
| 49 | long int len; | |
| 50 | const char *num_end; | |
| 51 | git_pkt *pkt; | |
| 52 | ||
| 53 | error = git__strtol32(&len, line, &num_end, 16); | |
| 54 | if (error < GIT_SUCCESS) | |
| 55 | return error; | |
| 56 | ||
| 57 | /* | |
| 58 | * TODO: How do we deal with empty lines? Try again? with the next | |
| 59 | * line? | |
| 60 | */ | |
| 61 | if (len == 4) { | |
| 62 | *out = num_end; | |
| 63 | return GIT_SUCCESS; | |
| 64 | } | |
| 65 | ||
| 66 | if (len == 0) { /* Flush, should go into its own fn */ | |
| 67 | pkt = git__malloc(sizeof(git_pkt)); | |
| 68 | if (pkt == NULL) | |
| 69 | return GIT_ENOMEM; | |
| 70 | ||
| 71 | pkt->type = GIT_PKT_FLUSH; | |
| 72 | *head = pkt; | |
| 73 | *out = num_end; | |
| 74 | return GIT_SUCCESS; | |
| 75 | } | |
| 76 | ||
| 77 | /* TODO: Write the rest of this thing */ | |
| 78 | ||
| 79 | return GIT_SUCCESS; | |
| 80 | } |