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Cleanup before exit

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This commit is contained in:
Ashish Kumar Yadav 2021-08-06 21:50:09 +05:30
parent c1ff32f912
commit 28b7776611
1 changed files with 7 additions and 0 deletions
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7
dwmblocks.c
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@ -178,6 +178,8 @@ updateblock(Block *block, int sigval)
switch (fork()) {
case -1:
perror("updateblock - fork");
close(fd[0]);
close(fd[1]);
cleanup();
exit(1);
case 0:
@ -185,6 +187,7 @@ updateblock(Block *block, int sigval)
if (fd[1] != STDOUT_FILENO) {
if (dup2(fd[1], STDOUT_FILENO) != STDOUT_FILENO) {
perror("updateblock - child - dup2");
close(fd[1]);
exit(1);
}
close(fd[1]);
@ -213,6 +216,7 @@ updateblock(Block *block, int sigval)
while (rd > 0 && (trd += rd) < CMDOUTLENGTH);
if (rd == -1) {
perror("updateblock - read");
close(fd[0]);
cleanup();
exit(1);
}
@ -281,14 +285,17 @@ writepid()
exit(2);
}
perror("writepid - fcntl");
close(fd);
exit(1);
}
if (ftruncate(fd, 0) == -1) {
perror("writepid - ftruncate");
close(fd);
exit(1);
}
if (dprintf(fd, "%ld", (long)getpid()) < 0) {
perror("writepid - dprintf");
close(fd);
exit(1);
}
}