46 lines
838 B
C
46 lines
838 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string.h>
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#include "defines.h"
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#include "log.h"
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void write_pid(char *file) {
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FILE *f;
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char buf[MAXLINE];
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if (!file)
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return;
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f = fopen(file, "w");
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if (f == NULL) {
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log_line("FATAL - failed to open pid file \"%s\"!\n", file);
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exit(EXIT_FAILURE);
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}
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snprintf(buf, sizeof buf, "%i", (unsigned int)getpid());
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fwrite(buf, sizeof (char), strlen(buf), f);
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if (fclose(f) != 0) {
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log_line("FATAL - failed to close pid file \"%s\"!\n", file);
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exit(EXIT_FAILURE);
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}
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}
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/* Return 0 on success, -1 on failure. */
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int file_exists(char *file, char *mode) {
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FILE *f;
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if (file == NULL || mode == NULL)
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return -1;
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f = fopen(file, mode);
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if (f == NULL)
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return -1;
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fclose(f);
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return 0;
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}
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