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Code Issues Releases Activity

Use NULL instead of 0 for pointers.

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fopen(3) will return NULL in case it can't open the STREAM.
The malloc will return a pointer to the allocated memory if successful,
otherwise a NULL pointer is returned.

Also add an extra DEBUG1 to print out the error to open a file.

Reviewed by:	ed
Differential Revision:	https://svnweb.freebsd.org/changeset/base/297959
This commit is contained in:
Marcelo Araujo 2016-04-14 12:25:00 +00:00
parent f9e059ac83
commit fa02fc2d8f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=297961
1 changed files with 5 additions and 3 deletions
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8
usr.sbin/rmt/rmt.c
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@ -84,8 +84,10 @@ main(int argc, char **argv)
argc--, argv++;
if (argc > 0) {
debug = fopen(*argv, "w");
if (debug == 0)
if (debug == NULL) {
DEBUG1("rmtd: error to open %s\n", *argv);
exit(1);
}
(void)setbuf(debug, (char *)0);
}
top:
@ -226,10 +228,10 @@ checkbuf(char *rec, int size)
if (size <= maxrecsize)
return (rec);
if (rec != 0)
if (rec != NULL)
free(rec);
rec = malloc(size);
if (rec == 0) {
if (rec == NULL) {
DEBUG("rmtd: cannot allocate buffer space\n");
exit(4);
}