| 1 | /* Copyright (C) 2011 Ericsson AB, Nils Carlson <nils.carlson@ericsson.com> |
| 2 | * |
| 3 | * This library is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU Lesser General Public |
| 5 | * License as published by the Free Software Foundation; either |
| 6 | * version 2.1 of the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * Lesser General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public |
| 14 | * License along with this library; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | */ |
| 17 | |
| 18 | #define _GNU_SOURCE |
| 19 | #include <stdio.h> |
| 20 | #include <ust/ustctl.h> |
| 21 | #include "usterr.h" |
| 22 | |
| 23 | |
| 24 | pid_t parse_pid(const char *pid_string) |
| 25 | { |
| 26 | pid_t pid; |
| 27 | |
| 28 | errno = 0; |
| 29 | pid = strtoull(pid_string, NULL, 10); |
| 30 | if (errno) { |
| 31 | perror("Failed to parse pid"); |
| 32 | exit(EXIT_FAILURE); |
| 33 | } |
| 34 | |
| 35 | return pid; |
| 36 | } |
| 37 | |
| 38 | int scan_ch_marker(const char *channel_marker, char **channel, char **marker) |
| 39 | { |
| 40 | int result; |
| 41 | |
| 42 | *channel = NULL; |
| 43 | *marker = NULL; |
| 44 | |
| 45 | result = sscanf(channel_marker, "%a[^/]/%as", channel, marker); |
| 46 | if (result != 2) { |
| 47 | if (errno) { |
| 48 | PERROR("Failed to read channel and marker names"); |
| 49 | } else { |
| 50 | ERR("Failed to parse marker and channel names"); |
| 51 | } |
| 52 | if (*channel) { |
| 53 | free(*channel); |
| 54 | } |
| 55 | if (*marker) { |
| 56 | free(*marker); |
| 57 | } |
| 58 | return -1; |
| 59 | } |
| 60 | |
| 61 | return 0; |
| 62 | } |
| 63 | |
| 64 | int scan_ch_and_num(const char *ch_num, char **channel, unsigned int *num) |
| 65 | { |
| 66 | int result; |
| 67 | |
| 68 | *channel = NULL; |
| 69 | |
| 70 | result = sscanf(ch_num, "%a[^/]/%u", channel, num); |
| 71 | if (result != 2) { |
| 72 | if (errno) { |
| 73 | PERROR("Failed to parse channel and number"); |
| 74 | } else { |
| 75 | ERR("Failed to parse channel and number"); |
| 76 | } |
| 77 | if (*channel) { |
| 78 | free(*channel); |
| 79 | } |
| 80 | return -1; |
| 81 | } |
| 82 | |
| 83 | return 0; |
| 84 | } |