95 lines
1.8 KiB
C
95 lines
1.8 KiB
C
#include <err.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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#include <unistd.h>
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#include "utils.h"
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#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined( _NetBSD__) || defined(__DragonFly__)
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#include <string.h>
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#else
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#include <bsd/string.h>
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#endif
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/* e*foo() functions are the equivalent of foo() but handle errors.
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* In case an error happens:
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* The error is printed to stdout
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* return 1
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*/
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#ifdef __OpenBSD__
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void
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eunveil(const char *path, const char *permissions)
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{
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if (unveil(path, permissions) == -1) {
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syslog(LOG_DAEMON, "unveil on %s failed", path);
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err(1, "unveil on %s failed", path);
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}
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}
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void
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epledge(const char *promises, const char *execpromises)
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{
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if (pledge(promises, execpromises) == -1) {
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syslog(LOG_DAEMON, "pledge failed for: %s", promises);
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err(1, "pledge failed for: %s", promises);
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}
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}
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#endif
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size_t
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estrlcpy(char *dst, const char *src, size_t dstsize)
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{
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size_t n = 0;
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n = strlcpy(dst, src, dstsize);
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if (n >= dstsize) {
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err(1, "strlcpy failed for %s = %s", dst, src);
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}
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return n;
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}
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size_t
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estrlcat(char *dst, const char *src, size_t dstsize)
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{
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size_t size;
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if ((size = strlcat(dst, src, dstsize)) >= dstsize)
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err(1, "strlcat on %s + %s", dst, src);
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return size;
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}
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int
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esetenv(const char *name, const char *value, int overwrite)
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{
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int ret = 0;
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ret = setenv(name, value, overwrite);
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if (ret != 0) {
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err(1, "setenv %s:%s", name, value);
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}
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return ret;
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}
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/* send error in syslog, to stdout and die */
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void
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errlog(const char *format, ...)
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{
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char e[1024] = {'\0'};
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va_list ap;
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fflush(stdout); /* make sure older messages are printed */
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va_start(ap, format);
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vsnprintf(e, sizeof(e), format, ap);
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va_end(ap);
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syslog(LOG_DAEMON, "%s", e);
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err(1, "%s", e);
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}
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