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improved error handling

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This commit is contained in:
Michael Ossmann
2013-02-21 13:46:22 -07:00
parent b7020a0103
commit ae16685996
1 changed files with 37 additions and 24 deletions
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61
host/libhackrf/examples/hackrf_spiflash.c
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@ -146,6 +146,17 @@ int main(int argc, char** argv)
return EXIT_FAILURE; return EXIT_FAILURE;
} }
if (read) {
fd = fopen(path, "wb");
} else {
fd = fopen(path, "rb");
}
if (fd == NULL) {
fprintf(stderr, "Failed to open file: %s\n", path);
return EXIT_FAILURE;
}
result = hackrf_init(); result = hackrf_init();
if (result != HACKRF_SUCCESS) { if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_init() failed: %s (%d)\n", fprintf(stderr, "hackrf_init() failed: %s (%d)\n",
@ -160,47 +171,49 @@ int main(int argc, char** argv)
return EXIT_FAILURE; return EXIT_FAILURE;
} }
if (read) {
fd = fopen(path, "wb");
} else {
fd = fopen(path, "rb");
}
if (fd == NULL) {
fprintf(stderr, "Failed to open file: %s\n", path);
return EXIT_FAILURE;
}
if (read) { if (read) {
result = hackrf_spiflash_read(device, address, length, data); result = hackrf_spiflash_read(device, address, length, data);
if (result == HACKRF_SUCCESS) { if (result != HACKRF_SUCCESS) {
const ssize_t bytes_written = fwrite(data, 1, length, fd); fprintf(stderr, "hackrf_spiflash_read() failed: %s (%d)\n",
if (bytes_written != length) { hackrf_error_name(result), result);
fprintf(stderr, "Failed write to file (wrote %d bytes).\n", fclose(fd);
(int)bytes_written); fd = NULL;
fclose(fd); return EXIT_FAILURE;
fd = NULL; }
return EXIT_FAILURE; const ssize_t bytes_written = fwrite(data, 1, length, fd);
} if (bytes_written != length) {
fprintf(stderr, "Failed write to file (wrote %d bytes).\n",
(int)bytes_written);
fclose(fd);
fd = NULL;
return EXIT_FAILURE;
} }
} else { } else {
const ssize_t bytes_read = fread(data, 1, length, fd); const ssize_t bytes_read = fread(data, 1, length, fd);
if (bytes_read == length) { if (bytes_read != length) {
result = hackrf_spiflash_write(device, address, length, data);
} else {
fprintf(stderr, "Failed read file (read %d bytes).\n", fprintf(stderr, "Failed read file (read %d bytes).\n",
(int)bytes_read); (int)bytes_read);
fclose(fd); fclose(fd);
fd = NULL; fd = NULL;
return EXIT_FAILURE; return EXIT_FAILURE;
} }
result = hackrf_spiflash_write(device, address, length, data);
if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_spiflash_write() failed: %s (%d)\n",
hackrf_error_name(result), result);
fclose(fd);
fd = NULL;
return EXIT_FAILURE;
}
} }
result = hackrf_close(device); result = hackrf_close(device);
if (result != HACKRF_SUCCESS) { if (result != HACKRF_SUCCESS) {
fprintf(stderr, "hackrf_close() failed: %s (%d)\n", fprintf(stderr, "hackrf_close() failed: %s (%d)\n",
hackrf_error_name(result), result); hackrf_error_name(result), result);
return -1; fclose(fd);
fd = NULL;
return EXIT_FAILURE;
} }
hackrf_exit(); hackrf_exit();