Increase standard I/O buffer a lot to be able to
read huge informations at once as otherwise all files below /proc/sys, not using the seq_file API at the kernel side, will return EOF on a second read. Signed-off-by: Werner Fink <werner@suse.de>
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parent
03f5e2b7c5
commit
58ae084c27
10
sysctl.c
10
sysctl.c
@ -158,6 +158,8 @@ static char *StripLeadingAndTrailingSpaces(char *oneline)
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/*
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* Read a sysctl setting
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*/
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#define IOBUFSIZ (128<<10)
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static char *iobuf;
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static int ReadSetting(const char *restrict const name)
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{
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int rc = 0;
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@ -220,6 +222,9 @@ static int ReadSetting(const char *restrict const name)
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fp = fopen(tmpname, "r");
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if (iobuf)
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setvbuf(fp, iobuf, _IOFBF, IOBUFSIZ);
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if (!fp) {
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switch (errno) {
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case ENOENT:
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@ -430,6 +435,9 @@ static int WriteSetting(const char *setting)
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fp = fopen(tmpname, "w");
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if (iobuf)
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setvbuf(fp, iobuf, _IOFBF, IOBUFSIZ);
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if (!fp) {
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switch (errno) {
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case ENOENT:
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@ -793,6 +801,8 @@ int main(int argc, char *argv[])
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argc -= optind;
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argv += optind;
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iobuf = (char*)malloc(IOBUFSIZ); /* Allow to fail */
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if (DisplayAllOpt)
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return DisplayAll(PROC_PATH);
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