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fix strncmp bug by using strcmp - scroll - scrollbackbuffer program for st |
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git clone git://git.suckless.org/scroll |
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Log |
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Files |
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README |
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LICENSE |
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--- |
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commit 91d126eabe33630163d15f9bb423ca95f95333f4 |
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parent 6e7406cde8b517ecee582856ffbaaaea63e98661 |
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Author: Jan Klemkow <[email protected]> |
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Date: Tue, 14 Apr 2020 22:40:50 +0200 |
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fix strncmp bug by using strcmp |
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if input is just a single ESC character, strncmp |
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just compares the first char of the constant string. |
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Diffstat: |
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M scroll.c | 6 ++++-- |
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1 file changed, 4 insertions(+), 2 deletions(-) |
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--- |
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diff --git a/scroll.c b/scroll.c |
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@@ -506,18 +506,20 @@ main(int argc, char *argv[]) |
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} |
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out: |
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if (pfd[1].revents & POLLIN) { |
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- ssize_t n = read(mfd, input, sizeof input); |
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+ ssize_t n = read(mfd, input, sizeof(input)-1); |
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if (n == -1 && errno != EINTR) |
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die("read:"); |
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if (n == 0) /* on exit of child we continue her… |
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continue; /* let signal handler catch SIGCHLD … |
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+ input[n] = '\0'; |
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+ |
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if (write(STDOUT_FILENO, input, n) == -1) |
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die("write:"); |
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/* don't save clear screen esc sequences in log */ |
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- if (strncmp("\033[H\033[2J", input, n) == 0) |
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+ if (strcmp("\033[H\033[2J", input) == 0) |
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continue; |
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/* iterate over the input buffer */ |
