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Adding upstream version 1.65.7.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-05-19 21:29:57 +02:00
parent 5189956325
commit 32b8eb3fd7
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
4153 changed files with 2487292 additions and 0 deletions
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86
testdata/pread_test.c vendored Normal file
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#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
int main() {
const char *filename = "test_pread_pwrite.txt";
int fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, 0644);
if (fd == -1) {
printf("open\n");
return 1;
}
// Test data
const char *test_data = "This is a test string.";
size_t data_len = strlen(test_data);
// Write initial data
ssize_t bytes_written = write(fd, test_data, data_len);
if (bytes_written == -1) {
printf("write\n");
return 1;
}
// Large offset test (without lseek)
off_t large_offset = (off_t)1 << 33; // 8GB, won't fit in 32 bits
bytes_written = pwrite(fd, "large offset", 12, large_offset);
if (bytes_written == -1) {
printf("pwrite (large offset)\n");
printf("errno: %d\n", errno);
} else {
printf("Data written at large offset: %lli bytes\n", bytes_written);
}
char buffer[13];
ssize_t bytes_read = pread(fd, buffer, sizeof(buffer), large_offset);
printf("bytes_read: %lli\n", bytes_read);
if (bytes_read == -1) {
printf("pread (large offset)\n");
printf("errno: %d\n", errno);
return 1;
} else {
buffer[bytes_read] = '\0';
printf("Data read from large offset: '%s'\n", buffer);
}
if (strcmp(buffer, "large offset")) {
printf("pread (large offset) data mismatch (a)\n");
return 1;
}
// lseek and pread/pwrite test
if (lseek(fd, -10, SEEK_END) == -1) {
printf("lseek\n");
return 1;
}
bytes_written = pwrite(fd, "END", 3, 0); // Write "END" at the current offset
if (bytes_written == -1) {
printf("pwrite (after lseek)\n");
return 1;
}
lseek(fd, -10, SEEK_END); // Seek back to the same position
bytes_read = pread(fd, buffer, 3, 0);
printf("bytes_read: %lli\n", bytes_read);
if (bytes_read == -1) {
printf("pread (after lseek)\n");
return 1;
}
buffer[bytes_read] = '\0';
printf("Data read after lseek: '%s'\n", buffer);
if (strcmp(buffer, "END")) {
printf("pread (large offset) data mismatch (b)\n");
return 1;
}
close(fd);
remove(filename);
return 0;
}