93 lines
1.3 KiB
C
93 lines
1.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "imapfilter.h"
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/*
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* A malloc() that checks the results and dies in case of error.
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*/
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void *
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xmalloc(size_t size)
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{
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void *ptr;
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ptr = (void *)malloc(size);
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if (ptr == NULL)
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fatal(ERROR_MEMALLOC,
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"allocating memory; %s\n", strerror(errno));
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return ptr;
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}
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/*
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* A realloc() that checks the results and dies in case of error.
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*/
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void *
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xrealloc(void *ptr, size_t size)
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{
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ptr = (void *)realloc(ptr, size);
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if (ptr == NULL)
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fatal(ERROR_MEMALLOC,
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"allocating memory; %s\n", strerror(errno));
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return ptr;
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}
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/*
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* A free() that dies if fed with NULL pointer.
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*/
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void
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xfree(void *ptr)
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{
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if (ptr == NULL)
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fatal(ERROR_MEMALLOC,
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"NULL pointer given as argument\n");
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free(ptr);
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}
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/*
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* A strdup() that checks the results and dies in case of error.
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*/
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char *
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xstrdup(const char *str)
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{
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char *dup;
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dup = strdup(str);
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if (dup == NULL)
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fatal(ERROR_MEMALLOC, "allocating memory; %s\n",
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strerror(errno));
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return dup;
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}
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/*
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* A strndup() implementation that also checks the results and dies in case of
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* error.
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*/
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char *
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xstrndup(const char *str, size_t len)
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{
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char *dup;
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dup = (char *)xmalloc((len + 1) * sizeof(char));
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memcpy(dup, str, len);
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dup[len] = '\0';
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return dup;
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}
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