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tools/imagetool.c
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/* * (C) Copyright 2013 * * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include "imagetool.h" |
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#include <image.h> |
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struct image_type_params *imagetool_get_type(int type) |
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{ |
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struct image_type_params **curr; INIT_SECTION(image_type); struct image_type_params **start = __start_image_type; struct image_type_params **end = __stop_image_type; |
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for (curr = start; curr != end; curr++) { |
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if ((*curr)->check_image_type) { if (!(*curr)->check_image_type(type)) return *curr; |
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} } return NULL; } int imagetool_verify_print_header( void *ptr, struct stat *sbuf, struct image_type_params *tparams, struct image_tool_params *params) { int retval = -1; |
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struct image_type_params **curr; INIT_SECTION(image_type); |
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struct image_type_params **start = __start_image_type; struct image_type_params **end = __stop_image_type; |
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for (curr = start; curr != end; curr++) { |
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if ((*curr)->verify_header) { retval = (*curr)->verify_header((unsigned char *)ptr, |
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sbuf->st_size, params); if (retval == 0) { /* * Print the image information if verify is * successful */ |
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if ((*curr)->print_header) { |
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if (!params->quiet) (*curr)->print_header(ptr); |
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} else { fprintf(stderr, "%s: print_header undefined for %s ", |
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params->cmdname, (*curr)->name); |
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} break; } } } return retval; } |
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int imagetool_save_subimage( |
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const char *file_name, ulong file_data, ulong file_len) { int dfd; dfd = open(file_name, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR); if (dfd < 0) { fprintf(stderr, "Can't open \"%s\": %s ", file_name, strerror(errno)); return -1; } if (write(dfd, (void *)file_data, file_len) != (ssize_t)file_len) { fprintf(stderr, "Write error on \"%s\": %s ", file_name, strerror(errno)); close(dfd); return -1; } close(dfd); return 0; } |
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int imagetool_get_filesize(struct image_tool_params *params, const char *fname) { struct stat sbuf; int fd; fd = open(fname, O_RDONLY | O_BINARY); if (fd < 0) { fprintf(stderr, "%s: Can't open %s: %s ", params->cmdname, fname, strerror(errno)); return -1; } if (fstat(fd, &sbuf) < 0) { fprintf(stderr, "%s: Can't stat %s: %s ", params->cmdname, fname, strerror(errno)); |
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close(fd); |
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return -1; } close(fd); return sbuf.st_size; } |
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time_t imagetool_get_source_date( struct image_tool_params *params, time_t fallback) { char *source_date_epoch = getenv("SOURCE_DATE_EPOCH"); if (source_date_epoch == NULL) return fallback; time_t time = (time_t) strtol(source_date_epoch, NULL, 10); if (gmtime(&time) == NULL) { fprintf(stderr, "%s: SOURCE_DATE_EPOCH is not valid ", params->cmdname); time = 0; } return time; } |