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19 lines
604 B
C
19 lines
604 B
C
/* SPDX-License-Identifier: MIT-0 */
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <systemd/sd-bus.h>
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int writer_with_negative_errno_return(int fd, sd_bus_error *error) {
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const char *message = "Hello, World!\n";
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ssize_t n = write(fd, message, strlen(message));
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if (n >= 0)
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return n; /* On success, return the number of bytes written, possibly 0. */
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/* On error, initialize the error structure, and also propagate the errno
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* value that write(2) set for us. */
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return sd_bus_error_set_errnof(error, errno, "Failed to write to fd %i: %s", fd, strerror(errno));
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}
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