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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "common/linux/linux_libc_support.h"
#include "linux_utils.h"
bool ElfFileSoVersion(const char* mapping_name, uint32_t* version_components) {
if (!version_components) {
return false;
}
// We found no version so just report 0
const char* so_version = my_strstr(mapping_name, ".so.");
if (so_version == nullptr) {
return true;
}
char tmp[12]; // 11 for maximum representation of UINT32T_MAX + \0 ?
size_t current_position = 0;
size_t next_tmp = 0;
tmp[0] = '\0';
for (size_t so_version_pos = 0; so_version_pos <= my_strlen(so_version);
++so_version_pos) {
// We can't have more than four: MAJOR.minor.release.patch
if (current_position == 4) {
break;
}
char c = so_version[so_version_pos];
if (c != '.') {
if ((c <= '9' && c >= '0')) {
tmp[next_tmp] = c;
tmp[next_tmp + 1] = '\0';
++next_tmp;
}
if (so_version[so_version_pos + 1] != '\0') {
continue;
}
}
if (my_strlen(tmp) > 0) {
int t;
if (!my_strtoui(&t, tmp)) {
return false;
}
uint32_t casted_tmp = (uint32_t)t;
version_components[current_position] = casted_tmp;
++current_position;
}
tmp[0] = '\0';
next_tmp = 0;
}
return true;
}
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