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error message style and use strerror in a few places

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This commit is contained in:
Hiltjo Posthuma
2018-03-29 18:30:05 +02:00
parent bd3f7fd842
commit 041912a791
2 changed files with 24 additions and 24 deletions
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21
st.c
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@ -256,10 +256,10 @@ xwrite(int fd, const char *s, size_t len)
void *
xmalloc(size_t len)
{
void *p = malloc(len);
void *p;
if (!p)
die("Out of memory\n");
if (!(p = malloc(len)))
die("malloc: %s\n", strerror(errno));
return p;
}
@ -268,7 +268,7 @@ void *
xrealloc(void *p, size_t len)
{
if ((p = realloc(p, len)) == NULL)
die("Out of memory\n");
die("realloc: %s\n", strerror(errno));
return p;
}
@ -277,7 +277,7 @@ char *
xstrdup(char *s)
{
if ((s = strdup(s)) == NULL)
die("Out of memory\n");
die("strdup: %s\n", strerror(errno));
return s;
}
@ -687,7 +687,7 @@ execsh(char *cmd, char **args)
errno = 0;
if ((pw = getpwuid(getuid())) == NULL) {
if (errno)
die("getpwuid:%s\n", strerror(errno));
die("getpwuid: %s\n", strerror(errno));
else
die("who are you?\n");
}
@ -730,7 +730,7 @@ sigchld(int a)
pid_t p;
if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
if (pid != p)
return;
@ -781,7 +781,8 @@ ttynew(char *line, char *cmd, char *out, char **args)
if (line) {
if ((cmdfd = open(line, O_RDWR)) < 0)
die("open line failed: %s\n", strerror(errno));
die("open line '%s' failed: %s\n",
line, strerror(errno));
dup2(cmdfd, 0);
stty(args);
return cmdfd;
@ -793,7 +794,7 @@ ttynew(char *line, char *cmd, char *out, char **args)
switch (pid = fork()) {
case -1:
die("fork failed\n");
die("fork failed: %s\n", strerror(errno));
break;
case 0:
close(iofd);
@ -826,7 +827,7 @@ ttyread(void)
/* append read bytes to unprocessed bytes */
if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
die("Couldn't read from shell: %s\n", strerror(errno));
die("couldn't read from shell: %s\n", strerror(errno));
buflen += ret;
written = twrite(buf, buflen, 0);