/crypto/heimdal/lib/roken/ecalloc.3
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- .Dd August 14, 2003
- .Dt ECALLOC 3
- .Os HEIMDAL
- .Sh NAME
- .Nm ecalloc ,
- .Nm emalloc ,
- .Nm eread ,
- .Nm erealloc ,
- .Nm esetenv ,
- .Nm estrdup ,
- .Nm ewrite
- .Nd exit-on-failure wrapper functions
- .Sh LIBRARY
- The roken library (libroken, -lroken)
- .Sh SYNOPSIS
- .Fd #include <roken.h>
- .Ft "void *"
- .Fn ecalloc "size_t number" "size_t size"
- .Ft "void *"
- .Fn emalloc "size_t sz"
- .Ft ssize_t
- .Fn eread "int fd" "void *buf" "size_t nbytes"
- .Ft "void *"
- .Fn erealloc "void *ptr" "size_t sz"
- .Ft void
- .Fn esetenv "const char *var" "const char *val" "int rewrite"
- .Ft "char *"
- .Fn estrdup "const char *str"
- .Ft ssize_t
- .Fn ewrite "int fd" "const void *buf" "size_t nbytes"
- .Sh DESCRIPTION
- These functions do the same as the ones without the
- .Dq e
- prefix, but if there is an error they will print a message with
- .Xr errx 3 ,
- and exit. For
- .Nm eread
- and
- .Nm ewrite
- this is also true for partial data.
- .Pp
- This is useful in applications when there is no need for a more
- advanced failure mode.
- .Sh SEE ALSO
- .Xr read 2 ,
- .Xr write 2 ,
- .Xr calloc 3 ,
- .Xr errx 3 ,
- .Xr malloc 3 ,
- .Xr realloc 3 ,
- .Xr setenv 3 ,
- .Xr strdup 3