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- Handle calloc() allocation failures.

Browse Source 
- Fixed a comment.
- 2 -> EXIT_FAILURE in some places.
- errx() -> err() where appropriate.

PR:		144644
Submitted by:	Garrett Cooper
This commit is contained in:
Ruslan Ermilov 2010-03-30 13:46:40 +00:00
parent 09bbda2122
commit 53d55e9756
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=205880
5 changed files with 36 additions and 9 deletions
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10
usr.sbin/config/config.y
View File

@ -166,6 +166,8 @@ Config_spec:
CPU Save_id {
struct cputype *cp =
(struct cputype *)calloc(1, sizeof (struct cputype));
if (cp == NULL)
err(EXIT_FAILURE, "calloc");
cp->cpu_name = $2;
SLIST_INSERT_HEAD(&cputype, cp, cpu_next);
} |
@ -197,6 +199,8 @@ Config_spec:
struct hint *hint;
hint = (struct hint *)calloc(1, sizeof (struct hint));
if (hint == NULL)
err(EXIT_FAILURE, "calloc");
hint->hint_name = $2;
STAILQ_INSERT_TAIL(&hints, hint, hint_next);
hintmode = 1;
@ -331,6 +335,8 @@ newfile(char *name)
struct files_name *nl;
nl = (struct files_name *) calloc(1, sizeof *nl);
if (nl == NULL)
err(EXIT_FAILURE, "calloc");
nl->f_name = name;
STAILQ_INSERT_TAIL(&fntab, nl, f_next);
}
@ -364,6 +370,8 @@ newdev(char *name)
}
np = (struct device *) calloc(1, sizeof *np);
if (np == NULL)
err(EXIT_FAILURE, "calloc");
np->d_name = name;
STAILQ_INSERT_TAIL(&dtab, np, d_next);
}
@ -422,6 +430,8 @@ newopt(struct opt_head *list, char *name, char *value, int append)
}
op = (struct opt *)calloc(1, sizeof (struct opt));
if (op == NULL)
err(EXIT_FAILURE, "calloc");
op->op_name = name;
op->op_ownfile = 0;
op->op_value = value;

3
usr.sbin/config/lang.l
View File

@ -33,6 +33,7 @@
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <string.h>
#include "y.tab.h"
#include "config.h"
@ -220,6 +221,8 @@ cfgfile_add(const char *fname)
struct cfgfile *cf;
cf = calloc(1, sizeof(*cf));
if (cf == NULL)
err(EXIT_FAILURE, "calloc");
assert(cf != NULL);
asprintf(&cf->cfg_path, "%s", fname);
STAILQ_INSERT_TAIL(&cfgfiles, cf, cfg_next);

20
usr.sbin/config/main.c
View File

@ -120,7 +120,7 @@ main(int argc, char **argv)
if (*destdir == '\0')
strlcpy(destdir, optarg, sizeof(destdir));
else
errx(2, "directory already set");
errx(EXIT_FAILURE, "directory already set");
break;
case 'g':
debugging++;
@ -175,7 +175,7 @@ main(int argc, char **argv)
if (mkdir(p, 0777))
err(2, "%s", p);
} else if (!S_ISDIR(buf.st_mode))
errx(2, "%s isn't a directory", p);
errx(EXIT_FAILURE, "%s isn't a directory", p);
SLIST_INIT(&cputype);
SLIST_INIT(&mkopt);
@ -256,7 +256,7 @@ get_srcdir(void)
int i;
if (realpath("../..", srcdir) == NULL)
errx(2, "Unable to find root of source tree");
err(EXIT_FAILURE, "Unable to find root of source tree");
if ((pwd = getenv("PWD")) != NULL && *pwd == '/' &&
(pwd = strdup(pwd)) != NULL) {
/* Remove the last two path components. */
@ -513,7 +513,7 @@ configfile(void)
}
sbuf_finish(sb);
/*
* We print first part of the tamplate, replace our tag with
* We print first part of the template, replace our tag with
* configuration files content and later continue writing our
* template.
*/
@ -650,6 +650,8 @@ remember(const char *file)
}
}
hl = calloc(1, sizeof(*hl));
if (hl == NULL)
err(EXIT_FAILURE, "calloc");
hl->h_name = s;
hl->h_next = htab;
htab = hl;
@ -671,19 +673,19 @@ kernconfdump(const char *file)
r = open(file, O_RDONLY);
if (r == -1)
errx(EXIT_FAILURE, "Couldn't open file '%s'", file);
err(EXIT_FAILURE, "Couldn't open file '%s'", file);
error = fstat(r, &st);
if (error == -1)
errx(EXIT_FAILURE, "fstat() failed");
err(EXIT_FAILURE, "fstat() failed");
if (S_ISDIR(st.st_mode))
errx(EXIT_FAILURE, "'%s' is a directory", file);
fp = fdopen(r, "r");
if (fp == NULL)
errx(EXIT_FAILURE, "fdopen() failed");
err(EXIT_FAILURE, "fdopen() failed");
osz = 1024;
o = calloc(1, osz);
if (o == NULL)
errx(EXIT_FAILURE, "Couldn't allocate memory");
err(EXIT_FAILURE, "Couldn't allocate memory");
/* ELF note section header. */
asprintf(&cmd, "/usr/bin/elfdump -c %s | grep -A 5 kern_conf"
"| tail -2 | cut -d ' ' -f 2 | paste - - -", file);
@ -703,7 +705,7 @@ kernconfdump(const char *file)
"INCLUDE_CONFIG_FILE", file);
r = fseek(fp, off, SEEK_CUR);
if (r != 0)
errx(EXIT_FAILURE, "fseek() failed");
err(EXIT_FAILURE, "fseek() failed");
for (i = 0; i < size - 1; i++) {
r = fgetc(fp);
if (r == EOF)

2
usr.sbin/config/mkmakefile.c
View File

@ -98,6 +98,8 @@ new_fent(void)
struct file_list *fp;
fp = (struct file_list *) calloc(1, sizeof *fp);
if (fp == NULL)
err(EXIT_FAILURE, "calloc");
STAILQ_INSERT_TAIL(&ftab, fp, f_next);
return (fp);
}

10
usr.sbin/config/mkoptions.c
View File

@ -70,6 +70,8 @@ options(void)
/* Fake the cpu types as options. */
SLIST_FOREACH(cp, &cputype, cpu_next) {
op = (struct opt *)calloc(1, sizeof(*op));
if (op == NULL)
err(EXIT_FAILURE, "calloc");
op->op_name = ns(cp->cpu_name);
SLIST_INSERT_HEAD(&opt, op, op_next);
}
@ -84,6 +86,8 @@ options(void)
/* Fake MAXUSERS as an option. */
op = (struct opt *)calloc(1, sizeof(*op));
if (op == NULL)
err(EXIT_FAILURE, "calloc");
op->op_name = ns("MAXUSERS");
snprintf(buf, sizeof(buf), "%d", maxusers);
op->op_value = ns(buf);
@ -199,6 +203,8 @@ do_option(char *name)
tidy++;
} else {
op = (struct opt *) calloc(1, sizeof *op);
if (op == NULL)
err(EXIT_FAILURE, "calloc");
op->op_name = inw;
op->op_value = invalue;
SLIST_INSERT_HEAD(&op_head, op, op_next);
@ -225,6 +231,8 @@ do_option(char *name)
if (value && !seen) {
/* New option appears */
op = (struct opt *) calloc(1, sizeof *op);
if (op == NULL)
err(EXIT_FAILURE, "calloc");
op->op_name = ns(name);
op->op_value = value ? ns(value) : NULL;
SLIST_INSERT_HEAD(&op_head, op, op_next);
@ -336,6 +344,8 @@ read_options(void)
}
po = (struct opt_list *) calloc(1, sizeof *po);
if (po == NULL)
err(EXIT_FAILURE, "calloc");
po->o_name = this;
po->o_file = val;
SLIST_INSERT_HEAD(&otab, po, o_next);