Tibor Nagy
a92be000fb
realpath: Fixing undefined behaviour in the second test. If the call fails the resolved_name argument cannot be used for error checking because its state is undefined by SUSv2. pipe: Changing the order of close and write error handling code. Errors in close could overwrite errno after write errors, returning incorrect error messages. gmtime: Removed duplicate checks Other fixes for fseek, rename, mktime, putwchar
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
#include <stdio.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "test_helpers.h"
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static char oldpath[] = "old-name.out";
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static char newpath[] = "new-name.out";
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static char str[] = "Hello, World!";
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int main(void) {
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char buf[14] = { 0 };
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// Create old file
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int fd = creat(oldpath, 0777);
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ERROR_IF(creat, fd, == -1);
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UNEXP_IF(creat, fd, < 0);
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int written_bytes = write(fd, str, strlen(str));
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ERROR_IF(write, written_bytes, == -1);
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int c1 = close(fd);
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ERROR_IF(close, c1, == -1);
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UNEXP_IF(close, c1, != 0);
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// Rename old file to new file
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int rn_status = rename(oldpath, newpath);
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ERROR_IF(rename, rn_status, == -1);
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UNEXP_IF(rename, rn_status, != 0);
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// Read new file
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fd = open(newpath, O_RDONLY);
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ERROR_IF(open, fd, == -1);
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UNEXP_IF(open, fd, < 0);
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int read_bytes = read(fd, buf, strlen(str));
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ERROR_IF(read, read_bytes, == -1);
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UNEXP_IF(read, read_bytes, < 0);
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int c2 = close(fd);
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ERROR_IF(close, c2, == -1);
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UNEXP_IF(close, c2, != 0);
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// Remove new file
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int rm_status = remove(newpath);
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ERROR_IF(remove, rm_status, == -1);
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UNEXP_IF(remove, rm_status, != 0);
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// Compare file contents
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if (strcmp(str, buf) != 0) {
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puts("Comparison failed!");
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exit(EXIT_FAILURE);
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}
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}
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