mirror of
https://github.com/aaru-dps/aaruremote.git
synced 2025-12-16 11:14:35 +00:00
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
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* This file is part of the Aaru Remote Server.
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* Copyright (c) 2019-2021 Natalia Portillo.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <dirent.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "../aaruremote.h"
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#include "linux.h"
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uint8_t GetPcmciaData(void *device_ctx, uint16_t *cis_len, char *cis)
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{
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DeviceContext *ctx = device_ctx;
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char *dev_path;
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char tmp_path[4096];
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char resolved_link[4096];
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struct stat sb;
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ssize_t len;
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char *rchr;
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FILE *file;
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DIR *dir;
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struct dirent *dent;
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*cis_len = 0;
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if(!ctx) return 0;
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memset(tmp_path, 0, 4096);
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memset(resolved_link, 0, 4096);
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if(strncmp(ctx->device_path, "/dev/sd", 7) != 0 && strncmp(ctx->device_path, "/dev/sr", 7) != 0 &&
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strncmp(ctx->device_path, "/dev/st", 7) != 0)
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return 0;
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dev_path = (char *)ctx->device_path + 5;
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snprintf(tmp_path, 4096, "/sys/block/%s", dev_path);
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if(stat(tmp_path, &sb) != 0 || !S_ISDIR(sb.st_mode)) { return 0; }
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len = readlink(tmp_path, resolved_link, 4096);
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if(len == 0) return 0;
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memset(tmp_path, 0, 4096);
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snprintf(tmp_path, 4096, "/sys%s", resolved_link + 2);
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memcpy(resolved_link, tmp_path, 4096);
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while(strstr(resolved_link, "/sys/devices") != NULL)
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{
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rchr = strrchr(resolved_link, '/');
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if(rchr == NULL) break;
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*rchr = '\0';
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if(strlen(resolved_link) == 0) break;
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memset(tmp_path, 0, 4096);
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snprintf(tmp_path, 4096, "%s/pcmcia_socket", resolved_link);
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if(access(tmp_path, R_OK) != 0) continue;
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dir = opendir(tmp_path);
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if(!dir) continue;
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do {
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dent = readdir(dir);
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if(!dent) break;
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} while(dent && dent->d_type != DT_DIR);
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if(!dent) continue;
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memset(tmp_path, 0, 4096);
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snprintf(tmp_path, 4096, "%s/pcmcia_socket/%s/cis", resolved_link, dent->d_name);
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if(access(tmp_path, R_OK) != 0) continue;
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file = fopen(tmp_path, "r");
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if(!file) return 0;
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*cis_len = fread(cis, 65536, 1, file);
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return 1;
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}
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return 0;
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}
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